Merge tag 'char-misc-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
authorLinus Torvalds <torvalds@linux-foundation.org>
Thu, 24 Jan 2013 04:10:48 +0000 (20:10 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 24 Jan 2013 04:10:48 +0000 (20:10 -0800)
Pull drivers/misc fix from Greg Kroah-Hartman:
 "Here is a single revert for the ti-st misc driver, fixing problem that
  was introduced in 3.7-rc1 that has been bothering people."

* tag 'char-misc-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Revert "drivers/misc/ti-st: remove gpio handling"

77 files changed:
Documentation/filesystems/f2fs.txt
MAINTAINERS
Makefile
arch/arm64/include/asm/elf.h
arch/m68k/include/asm/dma-mapping.h
arch/m68k/include/asm/unistd.h
arch/m68k/include/uapi/asm/unistd.h
arch/m68k/kernel/syscalltable.S
arch/parisc/kernel/entry.S
arch/parisc/kernel/irq.c
arch/parisc/kernel/ptrace.c
arch/parisc/kernel/signal.c
arch/parisc/math-emu/cnv_float.h
arch/x86/kernel/cpu/perf_event.c
arch/x86/kernel/step.c
drivers/ata/ahci.c
drivers/ata/libahci.c
drivers/ata/libata-core.c
drivers/ata/libata-eh.c
drivers/gpio/gpio-mvebu.c
drivers/gpio/gpio-samsung.c
drivers/media/i2c/m5mols/m5mols_core.c
drivers/media/platform/omap3isp/ispvideo.c
drivers/media/platform/s5p-fimc/fimc-mdevice.c
drivers/media/platform/s5p-mfc/s5p_mfc.c
drivers/media/usb/gspca/kinect.c
drivers/media/usb/gspca/sonixb.c
drivers/media/usb/gspca/sonixj.c
drivers/media/usb/uvc/uvc_ctrl.c
drivers/media/usb/uvc/uvc_v4l2.c
drivers/media/v4l2-core/videobuf2-core.c
drivers/pci/hotplug/pciehp.h
drivers/pci/hotplug/pciehp_core.c
drivers/pci/hotplug/pciehp_ctrl.c
drivers/pci/hotplug/pciehp_hpc.c
drivers/pci/hotplug/shpchp.h
drivers/pci/hotplug/shpchp_core.c
drivers/pci/hotplug/shpchp_ctrl.c
drivers/pci/pcie/Kconfig
drivers/pci/pcie/aer/aerdrv_core.c
drivers/pci/pcie/aspm.c
drivers/vfio/pci/vfio_pci_rdwr.c
fs/Kconfig
fs/f2fs/acl.c
fs/f2fs/checkpoint.c
fs/f2fs/data.c
fs/f2fs/debug.c
fs/f2fs/dir.c
fs/f2fs/f2fs.h
fs/f2fs/file.c
fs/f2fs/gc.c
fs/f2fs/inode.c
fs/f2fs/node.c
fs/f2fs/recovery.c
fs/f2fs/segment.c
fs/f2fs/super.c
fs/f2fs/xattr.c
fs/fuse/Kconfig
fs/fuse/cuse.c
fs/fuse/dev.c
fs/fuse/file.c
include/asm-generic/dma-mapping-broken.h
include/linux/ata.h
include/linux/libata.h
include/linux/sched.h
kernel/async.c
kernel/ptrace.c
kernel/sched/core.c
kernel/signal.c
kernel/trace/ftrace.c
security/device_cgroup.c
security/integrity/evm/evm_crypto.c
sound/pci/hda/hda_codec.c
sound/pci/hda/patch_conexant.c
sound/pci/hda/patch_realtek.c
tools/perf/MANIFEST
tools/perf/Makefile

index 8fbd8b4..dcf338e 100644 (file)
@@ -175,9 +175,9 @@ consists of multiple segments as described below.
                                             align with the zone size <-|
                  |-> align with the segment size
      _________________________________________________________________________
-    |            |            |    Node     |   Segment   |   Segment  |      |
-    | Superblock | Checkpoint |   Address   |    Info.    |   Summary  | Main |
-    |    (SB)    |   (CP)     | Table (NAT) | Table (SIT) | Area (SSA) |      |
+    |            |            |   Segment   |    Node     |   Segment  |      |
+    | Superblock | Checkpoint |    Info.    |   Address   |   Summary  | Main |
+    |    (SB)    |   (CP)     | Table (SIT) | Table (NAT) | Area (SSA) |      |
     |____________|_____2______|______N______|______N______|______N_____|__N___|
                                                                        .      .
                                                              .                .
@@ -200,14 +200,14 @@ consists of multiple segments as described below.
  : It contains file system information, bitmaps for valid NAT/SIT sets, orphan
    inode lists, and summary entries of current active segments.
 
-- Node Address Table (NAT)
- : It is composed of a block address table for all the node blocks stored in
-   Main area.
-
 - Segment Information Table (SIT)
  : It contains segment information such as valid block count and bitmap for the
    validity of all the blocks.
 
+- Node Address Table (NAT)
+ : It is composed of a block address table for all the node blocks stored in
+   Main area.
+
 - Segment Summary Area (SSA)
  : It contains summary entries which contains the owner information of all the
    data and node blocks stored in Main area.
@@ -236,13 +236,13 @@ For file system consistency, each CP points to which NAT and SIT copies are
 valid, as shown as below.
 
   +--------+----------+---------+
-  |   CP   |    NAT   |   SIT   |
+  |   CP   |    SIT   |   NAT   |
   +--------+----------+---------+
   .         .          .          .
   .            .              .              .
   .               .                 .                 .
   +-------+-------+--------+--------+--------+--------+
-  | CP #0 | CP #1 | NAT #0 | NAT #1 | SIT #0 | SIT #1 |
+  | CP #0 | CP #1 | SIT #0 | SIT #1 | NAT #0 | NAT #1 |
   +-------+-------+--------+--------+--------+--------+
      |             ^                          ^
      |             |                          |
index 3105c48..8ae709e 100644 (file)
@@ -6585,7 +6585,7 @@ F:        drivers/media/platform/s3c-camif/
 F:     include/media/s3c_camif.h
 
 SERIAL DRIVERS
-M:     Alan Cox <alan@linux.intel.com>
+M:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 L:     linux-serial@vger.kernel.org
 S:     Maintained
 F:     drivers/tty/serial
index 253a455..2cd4c6b 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -169,7 +169,7 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
                                  -e s/arm.*/arm/ -e s/sa110/arm/ \
                                  -e s/s390x/s390/ -e s/parisc64/parisc/ \
                                  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-                                 -e s/sh[234].*/sh/ )
+                                 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
 
 # Cross compiling and selecting different set of gcc/bin-utils
 # ---------------------------------------------------------------------------
index 07fea29..fe32c0e 100644 (file)
 
 typedef unsigned long elf_greg_t;
 
-#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
+#define ELF_NGREG (sizeof(struct user_pt_regs) / sizeof(elf_greg_t))
+#define ELF_CORE_COPY_REGS(dest, regs) \
+       *(struct user_pt_regs *)&(dest) = (regs)->user_regs;
+
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 typedef struct user_fpsimd_state elf_fpregset_t;
 
index 17f7a45..3e6b844 100644 (file)
@@ -21,6 +21,22 @@ extern void *dma_alloc_coherent(struct device *, size_t,
 extern void dma_free_coherent(struct device *, size_t,
                              void *, dma_addr_t);
 
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                   dma_addr_t *dma_handle, gfp_t flag,
+                                   struct dma_attrs *attrs)
+{
+       /* attrs is not supported and ignored */
+       return dma_alloc_coherent(dev, size, dma_handle, flag);
+}
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                 void *cpu_addr, dma_addr_t dma_handle,
+                                 struct dma_attrs *attrs)
+{
+       /* attrs is not supported and ignored */
+       dma_free_coherent(dev, size, cpu_addr, dma_handle);
+}
+
 static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
                                          dma_addr_t *handle, gfp_t flag)
 {
index 847994c..f9337f6 100644 (file)
@@ -4,7 +4,7 @@
 #include <uapi/asm/unistd.h>
 
 
-#define NR_syscalls            348
+#define NR_syscalls            349
 
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
index b94bfbf..625f321 100644 (file)
 #define __NR_process_vm_readv  345
 #define __NR_process_vm_writev 346
 #define __NR_kcmp              347
+#define __NR_finit_module      348
 
 #endif /* _UAPI_ASM_M68K_UNISTD_H_ */
index c30da5b..3f04ea0 100644 (file)
@@ -368,4 +368,5 @@ ENTRY(sys_call_table)
        .long sys_process_vm_readv      /* 345 */
        .long sys_process_vm_writev
        .long sys_kcmp
+       .long sys_finit_module
 
index bfb4424..eb7850b 100644 (file)
@@ -1865,7 +1865,7 @@ syscall_restore:
 
        /* Are we being ptraced? */
        ldw     TASK_FLAGS(%r1),%r19
-       ldi     (_TIF_SINGLESTEP|_TIF_BLOCKSTEP),%r2
+       ldi     _TIF_SYSCALL_TRACE_MASK,%r2
        and,COND(=)     %r19,%r2,%r0
        b,n     syscall_restore_rfi
 
@@ -1978,15 +1978,23 @@ syscall_restore_rfi:
        /* sr2 should be set to zero for userspace syscalls */
        STREG   %r0,TASK_PT_SR2(%r1)
 
-pt_regs_ok:
        LDREG   TASK_PT_GR31(%r1),%r2
-       depi    3,31,2,%r2                         /* ensure return to user mode. */
-       STREG   %r2,TASK_PT_IAOQ0(%r1)
+       depi    3,31,2,%r2                 /* ensure return to user mode. */
+       STREG   %r2,TASK_PT_IAOQ0(%r1)
        ldo     4(%r2),%r2
        STREG   %r2,TASK_PT_IAOQ1(%r1)
+       b       intr_restore
        copy    %r25,%r16
+
+pt_regs_ok:
+       LDREG   TASK_PT_IAOQ0(%r1),%r2
+       depi    3,31,2,%r2                 /* ensure return to user mode. */
+       STREG   %r2,TASK_PT_IAOQ0(%r1)
+       LDREG   TASK_PT_IAOQ1(%r1),%r2
+       depi    3,31,2,%r2
+       STREG   %r2,TASK_PT_IAOQ1(%r1)
        b       intr_restore
-       nop
+       copy    %r25,%r16
 
        .import schedule,code
 syscall_do_resched:
index c0b1aff..0299d63 100644 (file)
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
        local_irq_disable();    /* PARANOID - should already be disabled */
        mtctl(~0UL, 23);        /* EIRR : clear all pending external intr */
-       claim_cpu_irqs();
 #ifdef CONFIG_SMP
-       if (!cpu_eiem)
+       if (!cpu_eiem) {
+               claim_cpu_irqs();
                cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+       }
 #else
+       claim_cpu_irqs();
        cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);    /* EIEM : enable all external intr */
index 857c2f5..534abd4 100644 (file)
@@ -26,7 +26,7 @@
 #include <asm/asm-offsets.h>
 
 /* PSW bits we allow the debugger to modify */
-#define USER_PSW_BITS  (PSW_N | PSW_V | PSW_CB)
+#define USER_PSW_BITS  (PSW_N | PSW_B | PSW_V | PSW_CB)
 
 /*
  * Called by kernel/ptrace.c when detaching..
index 5379969..fd05170 100644 (file)
@@ -190,8 +190,10 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
        DBG(1,"get_sigframe: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
                        (unsigned long)ka, sp, frame_size);
        
+       /* Align alternate stack and reserve 64 bytes for the signal
+          handler's frame marker.  */
        if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
-               sp = current->sas_ss_sp; /* Stacks grow up! */
+               sp = (current->sas_ss_sp + 0x7f) & ~0x3f; /* Stacks grow up! */
 
        DBG(1,"get_sigframe: Returning sp = %#lx\n", (unsigned long)sp);
        return (void __user *) sp; /* Stacks grow up.  Fun. */
index 9071e09..933423f 100644 (file)
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)  \
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */           \
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;               \
     if (exponent <= 31) {                                              \
-       Dintp1(dresultA) = 0;                                           \
-       Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+       Dintp1(dresultA) = 0;                                           \
+       Dintp2(dresultB) = val >> (31 - exponent);                      \
     }                                                                  \
     else {                                                             \
-       Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);          \
-       Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);          \
+       Dintp1(dresultA) = val >> (63 - exponent);                      \
+       Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0; \
     }                                                                  \
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */      \
   }
 
 #define Duint_setzero(dresultA,dresultB)       \
index 4428fd1..6774c17 100644 (file)
@@ -340,9 +340,6 @@ int x86_setup_perfctr(struct perf_event *event)
                /* BTS is currently only allowed for user-mode. */
                if (!attr->exclude_kernel)
                        return -EOPNOTSUPP;
-
-               if (!attr->exclude_guest)
-                       return -EOPNOTSUPP;
        }
 
        hwc->config |= config;
@@ -385,9 +382,6 @@ int x86_pmu_hw_config(struct perf_event *event)
        if (event->attr.precise_ip) {
                int precise = 0;
 
-               if (!event->attr.exclude_guest)
-                       return -EOPNOTSUPP;
-
                /* Support for constant skid */
                if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
                        precise++;
index cd3b243..9b4d51d 100644 (file)
@@ -165,10 +165,11 @@ void set_task_blockstep(struct task_struct *task, bool on)
         * Ensure irq/preemption can't change debugctl in between.
         * Note also that both TIF_BLOCKSTEP and debugctl should
         * be changed atomically wrt preemption.
-        * FIXME: this means that set/clear TIF_BLOCKSTEP is simply
-        * wrong if task != current, SIGKILL can wakeup the stopped
-        * tracee and set/clear can play with the running task, this
-        * can confuse the next __switch_to_xtra().
+        *
+        * NOTE: this means that set/clear TIF_BLOCKSTEP is only safe if
+        * task is current or it can't be running, otherwise we can race
+        * with __switch_to_xtra(). We rely on ptrace_freeze_traced() but
+        * PTRACE_KILL is not safe.
         */
        local_irq_disable();
        debugctl = get_debugctlmsr();
index 7862d17..4979127 100644 (file)
@@ -53,6 +53,7 @@
 
 enum {
        AHCI_PCI_BAR_STA2X11    = 0,
+       AHCI_PCI_BAR_ENMOTUS    = 2,
        AHCI_PCI_BAR_STANDARD   = 5,
 };
 
@@ -410,6 +411,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
        { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },   /* ASM1061 */
        { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },   /* ASM1062 */
 
+       /* Enmotus */
+       { PCI_DEVICE(0x1c44, 0x8000), board_ahci },
+
        /* Generic, PCI class code for AHCI */
        { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
          PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
@@ -1098,9 +1102,11 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                dev_info(&pdev->dev,
                         "PDC42819 can only drive SATA devices with this driver\n");
 
-       /* The Connext uses non-standard BAR */
+       /* Both Connext and Enmotus devices use non-standard BARs */
        if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
                ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
+       else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
+               ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
 
        /* acquire resources */
        rc = pcim_enable_device(pdev);
index 320712a..6cd7805 100644 (file)
@@ -1951,13 +1951,13 @@ static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep)
        /* Use the nominal value 10 ms if the read MDAT is zero,
         * the nominal value of DETO is 20 ms.
         */
-       if (dev->sata_settings[ATA_LOG_DEVSLP_VALID] &
+       if (dev->devslp_timing[ATA_LOG_DEVSLP_VALID] &
            ATA_LOG_DEVSLP_VALID_MASK) {
-               mdat = dev->sata_settings[ATA_LOG_DEVSLP_MDAT] &
+               mdat = dev->devslp_timing[ATA_LOG_DEVSLP_MDAT] &
                       ATA_LOG_DEVSLP_MDAT_MASK;
                if (!mdat)
                        mdat = 10;
-               deto = dev->sata_settings[ATA_LOG_DEVSLP_DETO];
+               deto = dev->devslp_timing[ATA_LOG_DEVSLP_DETO];
                if (!deto)
                        deto = 20;
        } else {
index 9e8b99a..46cd3f4 100644 (file)
@@ -2325,24 +2325,28 @@ int ata_dev_configure(struct ata_device *dev)
                        }
                }
 
-               /* check and mark DevSlp capability */
-               if (ata_id_has_devslp(dev->id))
-                       dev->flags |= ATA_DFLAG_DEVSLP;
-
-               /* Obtain SATA Settings page from Identify Device Data Log,
-                * which contains DevSlp timing variables etc.
-                * Exclude old devices with ata_id_has_ncq()
+               /* Check and mark DevSlp capability. Get DevSlp timing variables
+                * from SATA Settings page of Identify Device Data Log.
                 */
-               if (ata_id_has_ncq(dev->id)) {
+               if (ata_id_has_devslp(dev->id)) {
+                       u8 sata_setting[ATA_SECT_SIZE];
+                       int i, j;
+
+                       dev->flags |= ATA_DFLAG_DEVSLP;
                        err_mask = ata_read_log_page(dev,
                                                     ATA_LOG_SATA_ID_DEV_DATA,
                                                     ATA_LOG_SATA_SETTINGS,
-                                                    dev->sata_settings,
+                                                    sata_setting,
                                                     1);
                        if (err_mask)
                                ata_dev_dbg(dev,
                                            "failed to get Identify Device Data, Emask 0x%x\n",
                                            err_mask);
+                       else
+                               for (i = 0; i < ATA_LOG_DEVSLP_SIZE; i++) {
+                                       j = ATA_LOG_DEVSLP_OFFSET + i;
+                                       dev->devslp_timing[i] = sata_setting[j];
+                               }
                }
 
                dev->cdb_len = 16;
index bf039b0..bcf4437 100644 (file)
@@ -2094,7 +2094,7 @@ static unsigned int ata_eh_speed_down(struct ata_device *dev,
  */
 static inline int ata_eh_worth_retry(struct ata_queued_cmd *qc)
 {
-       if (qc->flags & AC_ERR_MEDIA)
+       if (qc->err_mask & AC_ERR_MEDIA)
                return 0;       /* don't retry media errors */
        if (qc->flags & ATA_QCFLAG_IO)
                return 1;       /* otherwise retry anything from fs stack */
index 7d9bd94..6819d63 100644 (file)
@@ -547,7 +547,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
        mvchip->membase = devm_request_and_ioremap(&pdev->dev, res);
        if (! mvchip->membase) {
                dev_err(&pdev->dev, "Cannot ioremap\n");
-               kfree(mvchip->chip.label);
                return -ENOMEM;
        }
 
@@ -557,14 +556,12 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
                res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
                if (! res) {
                        dev_err(&pdev->dev, "Cannot get memory resource\n");
-                       kfree(mvchip->chip.label);
                        return -ENODEV;
                }
 
                mvchip->percpu_membase = devm_request_and_ioremap(&pdev->dev, res);
                if (! mvchip->percpu_membase) {
                        dev_err(&pdev->dev, "Cannot ioremap\n");
-                       kfree(mvchip->chip.label);
                        return -ENOMEM;
                }
        }
@@ -625,7 +622,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
        mvchip->irqbase = irq_alloc_descs(-1, 0, ngpios, -1);
        if (mvchip->irqbase < 0) {
                dev_err(&pdev->dev, "no irqs\n");
-               kfree(mvchip->chip.label);
                return -ENOMEM;
        }
 
@@ -633,7 +629,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
                                    mvchip->membase, handle_level_irq);
        if (! gc) {
                dev_err(&pdev->dev, "Cannot allocate generic irq_chip\n");
-               kfree(mvchip->chip.label);
                return -ENOMEM;
        }
 
@@ -668,7 +663,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
                irq_remove_generic_chip(gc, IRQ_MSK(ngpios), IRQ_NOREQUEST,
                                        IRQ_LEVEL | IRQ_NOPROBE);
                kfree(gc);
-               kfree(mvchip->chip.label);
                return -ENODEV;
        }
 
index 01f7fe9..76be7ee 100644 (file)
@@ -32,7 +32,6 @@
 
 #include <mach/hardware.h>
 #include <mach/map.h>
-#include <mach/regs-clock.h>
 #include <mach/regs-gpio.h>
 
 #include <plat/cpu.h>
@@ -446,7 +445,7 @@ static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
 };
 #endif
 
-#if defined(CONFIG_ARCH_EXYNOS4) || defined(CONFIG_ARCH_EXYNOS5)
+#if defined(CONFIG_ARCH_EXYNOS4) || defined(CONFIG_SOC_EXYNOS5250)
 static struct samsung_gpio_cfg exynos_gpio_cfg = {
        .set_pull       = exynos_gpio_setpull,
        .get_pull       = exynos_gpio_getpull,
@@ -2446,7 +2445,7 @@ static struct samsung_gpio_chip exynos4_gpios_3[] = {
 };
 #endif
 
-#ifdef CONFIG_ARCH_EXYNOS5
+#ifdef CONFIG_SOC_EXYNOS5250
 static struct samsung_gpio_chip exynos5_gpios_1[] = {
        {
                .chip   = {
@@ -2614,7 +2613,7 @@ static struct samsung_gpio_chip exynos5_gpios_1[] = {
 };
 #endif
 
-#ifdef CONFIG_ARCH_EXYNOS5
+#ifdef CONFIG_SOC_EXYNOS5250
 static struct samsung_gpio_chip exynos5_gpios_2[] = {
        {
                .chip   = {
@@ -2675,7 +2674,7 @@ static struct samsung_gpio_chip exynos5_gpios_2[] = {
 };
 #endif
 
-#ifdef CONFIG_ARCH_EXYNOS5
+#ifdef CONFIG_SOC_EXYNOS5250
 static struct samsung_gpio_chip exynos5_gpios_3[] = {
        {
                .chip   = {
@@ -2711,7 +2710,7 @@ static struct samsung_gpio_chip exynos5_gpios_3[] = {
 };
 #endif
 
-#ifdef CONFIG_ARCH_EXYNOS5
+#ifdef CONFIG_SOC_EXYNOS5250
 static struct samsung_gpio_chip exynos5_gpios_4[] = {
        {
                .chip   = {
@@ -3010,7 +3009,7 @@ static __init int samsung_gpiolib_init(void)
        int i, nr_chips;
        int group = 0;
 
-#ifdef CONFIG_PINCTRL_SAMSUNG
+#if defined(CONFIG_PINCTRL_EXYNOS) || defined(CONFIG_PINCTRL_EXYNOS5440)
        /*
        * This gpio driver includes support for device tree support and there
        * are platforms using it. In order to maintain compatibility with those
@@ -3026,6 +3025,7 @@ static __init int samsung_gpiolib_init(void)
        static const struct of_device_id exynos_pinctrl_ids[] = {
                { .compatible = "samsung,pinctrl-exynos4210", },
                { .compatible = "samsung,pinctrl-exynos4x12", },
+               { .compatible = "samsung,pinctrl-exynos5440", },
        };
        for_each_matching_node(pctrl_np, exynos_pinctrl_ids)
                if (pctrl_np && of_device_is_available(pctrl_np))
index 8a8d42f..d4e7567 100644 (file)
@@ -556,7 +556,7 @@ static int m5mols_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
        mutex_lock(&info->lock);
 
        format = __find_format(info, fh, fmt->which, info->res_type);
-       if (!format)
+       if (format)
                fmt->format = *format;
        else
                ret = -EINVAL;
index e0d73a6..8dac175 100644 (file)
@@ -35,9 +35,6 @@
 #include <linux/vmalloc.h>
 #include <media/v4l2-dev.h>
 #include <media/v4l2-ioctl.h>
-#include <plat/iommu.h>
-#include <plat/iovmm.h>
-#include <plat/omap-pm.h>
 
 #include "ispvideo.h"
 #include "isp.h"
index 4ab99f3..b4a68ec 100644 (file)
@@ -593,7 +593,7 @@ static int __fimc_md_create_flite_source_links(struct fimc_md *fmd)
 {
        struct media_entity *source, *sink;
        unsigned int flags = MEDIA_LNK_FL_ENABLED;
-       int i, ret;
+       int i, ret = 0;
 
        for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) {
                struct fimc_lite *fimc = fmd->fimc_lite[i];
index 379f574..681bc6b 100644 (file)
@@ -412,62 +412,48 @@ leave_handle_frame:
 }
 
 /* Error handling for interrupt */
-static void s5p_mfc_handle_error(struct s5p_mfc_ctx *ctx,
-                                unsigned int reason, unsigned int err)
+static void s5p_mfc_handle_error(struct s5p_mfc_dev *dev,
+               struct s5p_mfc_ctx *ctx, unsigned int reason, unsigned int err)
 {
-       struct s5p_mfc_dev *dev;
        unsigned long flags;
 
-       /* If no context is available then all necessary
-        * processing has been done. */
-       if (ctx == NULL)
-               return;
-
-       dev = ctx->dev;
        mfc_err("Interrupt Error: %08x\n", err);
-       s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
-       wake_up_dev(dev, reason, err);
 
-       /* Error recovery is dependent on the state of context */
-       switch (ctx->state) {
-       case MFCINST_INIT:
-               /* This error had to happen while acquireing instance */
-       case MFCINST_GOT_INST:
-               /* This error had to happen while parsing the header */
-       case MFCINST_HEAD_PARSED:
-               /* This error had to happen while setting dst buffers */
-       case MFCINST_RETURN_INST:
-               /* This error had to happen while releasing instance */
-               clear_work_bit(ctx);
-               wake_up_ctx(ctx, reason, err);
-               if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-                       BUG();
-               s5p_mfc_clock_off();
-               ctx->state = MFCINST_ERROR;
-               break;
-       case MFCINST_FINISHING:
-       case MFCINST_FINISHED:
-       case MFCINST_RUNNING:
-               /* It is higly probable that an error occured
-                * while decoding a frame */
-               clear_work_bit(ctx);
-               ctx->state = MFCINST_ERROR;
-               /* Mark all dst buffers as having an error */
-               spin_lock_irqsave(&dev->irqlock, flags);
-               s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->dst_queue,
-                               &ctx->vq_dst);
-               /* Mark all src buffers as having an error */
-               s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->src_queue,
-                               &ctx->vq_src);
-               spin_unlock_irqrestore(&dev->irqlock, flags);
-               if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-                       BUG();
-               s5p_mfc_clock_off();
-               break;
-       default:
-               mfc_err("Encountered an error interrupt which had not been handled\n");
-               break;
+       if (ctx != NULL) {
+               /* Error recovery is dependent on the state of context */
+               switch (ctx->state) {
+               case MFCINST_RES_CHANGE_INIT:
+               case MFCINST_RES_CHANGE_FLUSH:
+               case MFCINST_RES_CHANGE_END:
+               case MFCINST_FINISHING:
+               case MFCINST_FINISHED:
+               case MFCINST_RUNNING:
+                       /* It is higly probable that an error occured
+                        * while decoding a frame */
+                       clear_work_bit(ctx);
+                       ctx->state = MFCINST_ERROR;
+                       /* Mark all dst buffers as having an error */
+                       spin_lock_irqsave(&dev->irqlock, flags);
+                       s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue,
+                                               &ctx->dst_queue, &ctx->vq_dst);
+                       /* Mark all src buffers as having an error */
+                       s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue,
+                                               &ctx->src_queue, &ctx->vq_src);
+                       spin_unlock_irqrestore(&dev->irqlock, flags);
+                       wake_up_ctx(ctx, reason, err);
+                       break;
+               default:
+                       clear_work_bit(ctx);
+                       ctx->state = MFCINST_ERROR;
+                       wake_up_ctx(ctx, reason, err);
+                       break;
+               }
        }
+       if (test_and_clear_bit(0, &dev->hw_lock) == 0)
+               BUG();
+       s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
+       s5p_mfc_clock_off();
+       wake_up_dev(dev, reason, err);
        return;
 }
 
@@ -632,7 +618,7 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv)
                                dev->warn_start)
                        s5p_mfc_handle_frame(ctx, reason, err);
                else
-                       s5p_mfc_handle_error(ctx, reason, err);
+                       s5p_mfc_handle_error(dev, ctx, reason, err);
                clear_bit(0, &dev->enter_suspend);
                break;
 
index 40ad668..3773a8a 100644 (file)
@@ -381,6 +381,7 @@ static const struct sd_desc sd_desc = {
 /* -- module initialisation -- */
 static const struct usb_device_id device_table[] = {
        {USB_DEVICE(0x045e, 0x02ae)},
+       {USB_DEVICE(0x045e, 0x02bf)},
        {}
 };
 
index 70511d5..1220340 100644 (file)
@@ -496,7 +496,7 @@ static void reg_w(struct gspca_dev *gspca_dev,
        }
 }
 
-static void i2c_w(struct gspca_dev *gspca_dev, const __u8 *buffer)
+static void i2c_w(struct gspca_dev *gspca_dev, const u8 *buf)
 {
        int retry = 60;
 
@@ -504,16 +504,19 @@ static void i2c_w(struct gspca_dev *gspca_dev, const __u8 *buffer)
                return;
 
        /* is i2c ready */
-       reg_w(gspca_dev, 0x08, buffer, 8);
+       reg_w(gspca_dev, 0x08, buf, 8);
        while (retry--) {
                if (gspca_dev->usb_err < 0)
                        return;
-               msleep(10);
+               msleep(1);
                reg_r(gspca_dev, 0x08);
                if (gspca_dev->usb_buf[0] & 0x04) {
                        if (gspca_dev->usb_buf[0] & 0x08) {
                                dev_err(gspca_dev->v4l2_dev.dev,
-                                       "i2c write error\n");
+                                       "i2c error writing %02x %02x %02x %02x"
+                                       " %02x %02x %02x %02x\n",
+                                       buf[0], buf[1], buf[2], buf[3],
+                                       buf[4], buf[5], buf[6], buf[7]);
                                gspca_dev->usb_err = -EIO;
                        }
                        return;
@@ -530,7 +533,7 @@ static void i2c_w_vector(struct gspca_dev *gspca_dev,
        for (;;) {
                if (gspca_dev->usb_err < 0)
                        return;
-               reg_w(gspca_dev, 0x08, *buffer, 8);
+               i2c_w(gspca_dev, *buffer);
                len -= 8;
                if (len <= 0)
                        break;
index 5a86047..36307a9 100644 (file)
@@ -1550,6 +1550,7 @@ static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val)
                        0,
                        gspca_dev->usb_buf, 8,
                        500);
+       msleep(2);
        if (ret < 0) {
                pr_err("i2c_w1 err %d\n", ret);
                gspca_dev->usb_err = ret;
index 2bb7613..d5baab1 100644 (file)
@@ -1431,8 +1431,10 @@ int uvc_ctrl_set(struct uvc_video_chain *chain,
        int ret;
 
        ctrl = uvc_find_control(chain, xctrl->id, &mapping);
-       if (ctrl == NULL || (ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR) == 0)
+       if (ctrl == NULL)
                return -EINVAL;
+       if (!(ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR))
+               return -EACCES;
 
        /* Clamp out of range values. */
        switch (mapping->v4l2_type) {
index f2ee8c6..68d59b5 100644 (file)
@@ -657,8 +657,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
                        ret = uvc_ctrl_get(chain, ctrl);
                        if (ret < 0) {
                                uvc_ctrl_rollback(handle);
-                               ctrls->error_idx = ret == -ENOENT
-                                                ? ctrls->count : i;
+                               ctrls->error_idx = i;
                                return ret;
                        }
                }
@@ -686,8 +685,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
                        ret = uvc_ctrl_set(chain, ctrl);
                        if (ret < 0) {
                                uvc_ctrl_rollback(handle);
-                               ctrls->error_idx = (ret == -ENOENT &&
-                                                   cmd == VIDIOC_S_EXT_CTRLS)
+                               ctrls->error_idx = cmd == VIDIOC_S_EXT_CTRLS
                                                 ? ctrls->count : i;
                                return ret;
                        }
index 9f81be2..e02c479 100644 (file)
@@ -921,8 +921,10 @@ static void __fill_vb2_buffer(struct vb2_buffer *vb, const struct v4l2_buffer *b
                 * In videobuf we use our internal V4l2_planes struct for
                 * single-planar buffers as well, for simplicity.
                 */
-               if (V4L2_TYPE_IS_OUTPUT(b->type))
+               if (V4L2_TYPE_IS_OUTPUT(b->type)) {
                        v4l2_planes[0].bytesused = b->bytesused;
+                       v4l2_planes[0].data_offset = 0;
+               }
 
                if (b->memory == V4L2_MEMORY_USERPTR) {
                        v4l2_planes[0].m.userptr = b->m.userptr;
index 26ffd3e..2c113de 100644 (file)
@@ -44,7 +44,6 @@ extern bool pciehp_poll_mode;
 extern int pciehp_poll_time;
 extern bool pciehp_debug;
 extern bool pciehp_force;
-extern struct workqueue_struct *pciehp_wq;
 
 #define dbg(format, arg...)                                            \
 do {                                                                   \
@@ -78,6 +77,7 @@ struct slot {
        struct hotplug_slot *hotplug_slot;
        struct delayed_work work;       /* work for button event */
        struct mutex lock;
+       struct workqueue_struct *wq;
 };
 
 struct event_info {
index 916bf4f..939bd1d 100644 (file)
@@ -42,7 +42,6 @@ bool pciehp_debug;
 bool pciehp_poll_mode;
 int pciehp_poll_time;
 bool pciehp_force;
-struct workqueue_struct *pciehp_wq;
 
 #define DRIVER_VERSION "0.4"
 #define DRIVER_AUTHOR  "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -340,18 +339,13 @@ static int __init pcied_init(void)
 {
        int retval = 0;
 
-       pciehp_wq = alloc_workqueue("pciehp", 0, 0);
-       if (!pciehp_wq)
-               return -ENOMEM;
-
        pciehp_firmware_init();
        retval = pcie_port_service_register(&hpdriver_portdrv);
        dbg("pcie_port_service_register = %d\n", retval);
        info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
-       if (retval) {
-               destroy_workqueue(pciehp_wq);
+       if (retval)
                dbg("Failure to register service\n");
-       }
+
        return retval;
 }
 
@@ -359,7 +353,6 @@ static void __exit pcied_cleanup(void)
 {
        dbg("unload_pciehpd()\n");
        pcie_port_service_unregister(&hpdriver_portdrv);
-       destroy_workqueue(pciehp_wq);
        info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
 }
 
index 27f4429..38f0186 100644 (file)
@@ -49,7 +49,7 @@ static int queue_interrupt_event(struct slot *p_slot, u32 event_type)
        info->p_slot = p_slot;
        INIT_WORK(&info->work, interrupt_event_handler);
 
-       queue_work(pciehp_wq, &info->work);
+       queue_work(p_slot->wq, &info->work);
 
        return 0;
 }
@@ -344,7 +344,7 @@ void pciehp_queue_pushbutton_work(struct work_struct *work)
                kfree(info);
                goto out;
        }
-       queue_work(pciehp_wq, &info->work);
+       queue_work(p_slot->wq, &info->work);
  out:
        mutex_unlock(&p_slot->lock);
 }
@@ -377,7 +377,7 @@ static void handle_button_press_event(struct slot *p_slot)
                if (ATTN_LED(ctrl))
                        pciehp_set_attention_status(p_slot, 0);
 
-               queue_delayed_work(pciehp_wq, &p_slot->work, 5*HZ);
+               queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);
                break;
        case BLINKINGOFF_STATE:
        case BLINKINGON_STATE:
@@ -439,7 +439,7 @@ static void handle_surprise_event(struct slot *p_slot)
        else
                p_slot->state = POWERON_STATE;
 
-       queue_work(pciehp_wq, &info->work);
+       queue_work(p_slot->wq, &info->work);
 }
 
 static void interrupt_event_handler(struct work_struct *work)
index 13b2eaf..5127f3f 100644 (file)
@@ -773,23 +773,32 @@ static void pcie_shutdown_notification(struct controller *ctrl)
 static int pcie_init_slot(struct controller *ctrl)
 {
        struct slot *slot;
+       char name[32];
 
        slot = kzalloc(sizeof(*slot), GFP_KERNEL);
        if (!slot)
                return -ENOMEM;
 
+       snprintf(name, sizeof(name), "pciehp-%u", PSN(ctrl));
+       slot->wq = alloc_workqueue(name, 0, 0);
+       if (!slot->wq)
+               goto abort;
+
        slot->ctrl = ctrl;
        mutex_init(&slot->lock);
        INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work);
        ctrl->slot = slot;
        return 0;
+abort:
+       kfree(slot);
+       return -ENOMEM;
 }
 
 static void pcie_cleanup_slot(struct controller *ctrl)
 {
        struct slot *slot = ctrl->slot;
        cancel_delayed_work(&slot->work);
-       flush_workqueue(pciehp_wq);
+       destroy_workqueue(slot->wq);
        kfree(slot);
 }
 
index ca64932..b849f99 100644 (file)
@@ -46,8 +46,6 @@
 extern bool shpchp_poll_mode;
 extern int shpchp_poll_time;
 extern bool shpchp_debug;
-extern struct workqueue_struct *shpchp_wq;
-extern struct workqueue_struct *shpchp_ordered_wq;
 
 #define dbg(format, arg...)                                            \
 do {                                                                   \
@@ -91,6 +89,7 @@ struct slot {
        struct list_head        slot_list;
        struct delayed_work work;       /* work for button event */
        struct mutex lock;
+       struct workqueue_struct *wq;
        u8 hp_slot;
 };
 
index b6de307..3100c52 100644 (file)
@@ -39,8 +39,6 @@
 bool shpchp_debug;
 bool shpchp_poll_mode;
 int shpchp_poll_time;
-struct workqueue_struct *shpchp_wq;
-struct workqueue_struct *shpchp_ordered_wq;
 
 #define DRIVER_VERSION "0.4"
 #define DRIVER_AUTHOR  "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -129,6 +127,14 @@ static int init_slots(struct controller *ctrl)
                slot->device = ctrl->slot_device_offset + i;
                slot->hpc_ops = ctrl->hpc_ops;
                slot->number = ctrl->first_slot + (ctrl->slot_num_inc * i);
+
+               snprintf(name, sizeof(name), "shpchp-%d", slot->number);
+               slot->wq = alloc_workqueue(name, 0, 0);
+               if (!slot->wq) {
+                       retval = -ENOMEM;
+                       goto error_info;
+               }
+
                mutex_init(&slot->lock);
                INIT_DELAYED_WORK(&slot->work, shpchp_queue_pushbutton_work);
 
@@ -148,7 +154,7 @@ static int init_slots(struct controller *ctrl)
                if (retval) {
                        ctrl_err(ctrl, "pci_hp_register failed with error %d\n",
                                 retval);
-                       goto error_info;
+                       goto error_slotwq;
                }
 
                get_power_status(hotplug_slot, &info->power_status);
@@ -160,6 +166,8 @@ static int init_slots(struct controller *ctrl)
        }
 
        return 0;
+error_slotwq:
+       destroy_workqueue(slot->wq);
 error_info:
        kfree(info);
 error_hpslot:
@@ -180,8 +188,7 @@ void cleanup_slots(struct controller *ctrl)
                slot = list_entry(tmp, struct slot, slot_list);
                list_del(&slot->slot_list);
                cancel_delayed_work(&slot->work);
-               flush_workqueue(shpchp_wq);
-               flush_workqueue(shpchp_ordered_wq);
+               destroy_workqueue(slot->wq);
                pci_hp_deregister(slot->hotplug_slot);
        }
 }
@@ -364,25 +371,12 @@ static struct pci_driver shpc_driver = {
 
 static int __init shpcd_init(void)
 {
-       int retval = 0;
-
-       shpchp_wq = alloc_ordered_workqueue("shpchp", 0);
-       if (!shpchp_wq)
-               return -ENOMEM;
-
-       shpchp_ordered_wq = alloc_ordered_workqueue("shpchp_ordered", 0);
-       if (!shpchp_ordered_wq) {
-               destroy_workqueue(shpchp_wq);
-               return -ENOMEM;
-       }
+       int retval;
 
        retval = pci_register_driver(&shpc_driver);
        dbg("%s: pci_register_driver = %d\n", __func__, retval);
        info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
-       if (retval) {
-               destroy_workqueue(shpchp_ordered_wq);
-               destroy_workqueue(shpchp_wq);
-       }
+
        return retval;
 }
 
@@ -390,8 +384,6 @@ static void __exit shpcd_cleanup(void)
 {
        dbg("unload_shpchpd()\n");
        pci_unregister_driver(&shpc_driver);
-       destroy_workqueue(shpchp_ordered_wq);
-       destroy_workqueue(shpchp_wq);
        info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
 }
 
index f9b5a52..5849927 100644 (file)
@@ -51,7 +51,7 @@ static int queue_interrupt_event(struct slot *p_slot, u32 event_type)
        info->p_slot = p_slot;
        INIT_WORK(&info->work, interrupt_event_handler);
 
-       queue_work(shpchp_wq, &info->work);
+       queue_work(p_slot->wq, &info->work);
 
        return 0;
 }
@@ -453,7 +453,7 @@ void shpchp_queue_pushbutton_work(struct work_struct *work)
                kfree(info);
                goto out;
        }
-       queue_work(shpchp_ordered_wq, &info->work);
+       queue_work(p_slot->wq, &info->work);
  out:
        mutex_unlock(&p_slot->lock);
 }
@@ -501,7 +501,7 @@ static void handle_button_press_event(struct slot *p_slot)
                p_slot->hpc_ops->green_led_blink(p_slot);
                p_slot->hpc_ops->set_attention_status(p_slot, 0);
 
-               queue_delayed_work(shpchp_wq, &p_slot->work, 5*HZ);
+               queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);
                break;
        case BLINKINGOFF_STATE:
        case BLINKINGON_STATE:
index 6c8bc58..fde4a32 100644 (file)
@@ -82,4 +82,4 @@ endchoice
 
 config PCIE_PME
        def_bool y
-       depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI
+       depends on PCIEPORTBUS && PM_RUNTIME && ACPI
index 421bbc5..564d97f 100644 (file)
@@ -630,6 +630,7 @@ static void aer_recover_work_func(struct work_struct *work)
                        continue;
                }
                do_recovery(pdev, entry.severity);
+               pci_dev_put(pdev);
        }
 }
 #endif
index b52630b..8474b6a 100644 (file)
@@ -771,6 +771,9 @@ void pcie_clear_aspm(struct pci_bus *bus)
 {
        struct pci_dev *child;
 
+       if (aspm_force)
+               return;
+
        /*
         * Clear any ASPM setup that the firmware has carried out on this bus
         */
index 4362d9e..f72323e 100644 (file)
@@ -240,17 +240,17 @@ ssize_t vfio_pci_mem_readwrite(struct vfio_pci_device *vdev, char __user *buf,
                        filled = 1;
                } else {
                        /* Drop writes, fill reads with FF */
+                       filled = min((size_t)(x_end - pos), count);
                        if (!iswrite) {
                                char val = 0xFF;
                                size_t i;
 
-                               for (i = 0; i < x_end - pos; i++) {
+                               for (i = 0; i < filled; i++) {
                                        if (put_user(val, buf + i))
                                                goto out;
                                }
                        }
 
-                       filled = x_end - pos;
                }
 
                count -= filled;
index cfe512f..780725a 100644 (file)
@@ -68,16 +68,6 @@ source "fs/quota/Kconfig"
 source "fs/autofs4/Kconfig"
 source "fs/fuse/Kconfig"
 
-config CUSE
-       tristate "Character device in Userspace support"
-       depends on FUSE_FS
-       help
-         This FUSE extension allows character devices to be
-         implemented in userspace.
-
-         If you want to develop or use userspace character device
-         based on CUSE, answer Y or M.
-
 config GENERIC_ACL
        bool
        select FS_POSIX_ACL
index e95b949..137af42 100644 (file)
@@ -191,15 +191,14 @@ struct posix_acl *f2fs_get_acl(struct inode *inode, int type)
                retval = f2fs_getxattr(inode, name_index, "", value, retval);
        }
 
-       if (retval < 0) {
-               if (retval == -ENODATA)
-                       acl = NULL;
-               else
-                       acl = ERR_PTR(retval);
-       } else {
+       if (retval > 0)
                acl = f2fs_acl_from_disk(value, retval);
-       }
+       else if (retval == -ENODATA)
+               acl = NULL;
+       else
+               acl = ERR_PTR(retval);
        kfree(value);
+
        if (!IS_ERR(acl))
                set_cached_acl(inode, type, acl);
 
index 6ef36c3..ff3c843 100644 (file)
@@ -214,7 +214,6 @@ retry:
                goto retry;
        }
        new->ino = ino;
-       INIT_LIST_HEAD(&new->list);
 
        /* add new_oentry into list which is sorted by inode number */
        if (orphan) {
@@ -772,7 +771,7 @@ void init_orphan_info(struct f2fs_sb_info *sbi)
        sbi->n_orphans = 0;
 }
 
-int create_checkpoint_caches(void)
+int __init create_checkpoint_caches(void)
 {
        orphan_entry_slab = f2fs_kmem_cache_create("f2fs_orphan_entry",
                        sizeof(struct orphan_inode_entry), NULL);
index 3aa5ce7..7bd22a2 100644 (file)
@@ -547,6 +547,15 @@ redirty_out:
 
 #define MAX_DESIRED_PAGES_WP   4096
 
+static int __f2fs_writepage(struct page *page, struct writeback_control *wbc,
+                       void *data)
+{
+       struct address_space *mapping = data;
+       int ret = mapping->a_ops->writepage(page, wbc);
+       mapping_set_error(mapping, ret);
+       return ret;
+}
+
 static int f2fs_write_data_pages(struct address_space *mapping,
                            struct writeback_control *wbc)
 {
@@ -563,7 +572,7 @@ static int f2fs_write_data_pages(struct address_space *mapping,
 
        if (!S_ISDIR(inode->i_mode))
                mutex_lock(&sbi->writepages);
-       ret = generic_writepages(mapping, wbc);
+       ret = write_cache_pages(mapping, wbc, __f2fs_writepage, mapping);
        if (!S_ISDIR(inode->i_mode))
                mutex_unlock(&sbi->writepages);
        f2fs_submit_bio(sbi, DATA, (wbc->sync_mode == WB_SYNC_ALL));
@@ -689,6 +698,11 @@ static int f2fs_set_data_page_dirty(struct page *page)
        return 0;
 }
 
+static sector_t f2fs_bmap(struct address_space *mapping, sector_t block)
+{
+       return generic_block_bmap(mapping, block, get_data_block_ro);
+}
+
 const struct address_space_operations f2fs_dblock_aops = {
        .readpage       = f2fs_read_data_page,
        .readpages      = f2fs_read_data_pages,
@@ -700,4 +714,5 @@ const struct address_space_operations f2fs_dblock_aops = {
        .invalidatepage = f2fs_invalidate_data_page,
        .releasepage    = f2fs_release_data_page,
        .direct_IO      = f2fs_direct_IO,
+       .bmap           = f2fs_bmap,
 };
index 0e0380a..c8c3730 100644 (file)
@@ -26,6 +26,7 @@
 
 static LIST_HEAD(f2fs_stat_list);
 static struct dentry *debugfs_root;
+static DEFINE_MUTEX(f2fs_stat_mutex);
 
 static void update_general_status(struct f2fs_sb_info *sbi)
 {
@@ -180,18 +181,14 @@ static int stat_show(struct seq_file *s, void *v)
        int i = 0;
        int j;
 
+       mutex_lock(&f2fs_stat_mutex);
        list_for_each_entry_safe(si, next, &f2fs_stat_list, stat_list) {
 
-               mutex_lock(&si->stat_lock);
-               if (!si->sbi) {
-                       mutex_unlock(&si->stat_lock);
-                       continue;
-               }
                update_general_status(si->sbi);
 
                seq_printf(s, "\n=====[ partition info. #%d ]=====\n", i++);
-               seq_printf(s, "[SB: 1] [CP: 2] [NAT: %d] [SIT: %d] ",
-                          si->nat_area_segs, si->sit_area_segs);
+               seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
+                          si->sit_area_segs, si->nat_area_segs);
                seq_printf(s, "[SSA: %d] [MAIN: %d",
                           si->ssa_area_segs, si->main_area_segs);
                seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
@@ -286,8 +283,8 @@ static int stat_show(struct seq_file *s, void *v)
                seq_printf(s, "\nMemory: %u KB = static: %u + cached: %u\n",
                                (si->base_mem + si->cache_mem) >> 10,
                                si->base_mem >> 10, si->cache_mem >> 10);
-               mutex_unlock(&si->stat_lock);
        }
+       mutex_unlock(&f2fs_stat_mutex);
        return 0;
 }
 
@@ -303,7 +300,7 @@ static const struct file_operations stat_fops = {
        .release = single_release,
 };
 
-static int init_stats(struct f2fs_sb_info *sbi)
+int f2fs_build_stats(struct f2fs_sb_info *sbi)
 {
        struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
        struct f2fs_stat_info *si;
@@ -313,9 +310,6 @@ static int init_stats(struct f2fs_sb_info *sbi)
                return -ENOMEM;
 
        si = sbi->stat_info;
-       mutex_init(&si->stat_lock);
-       list_add_tail(&si->stat_list, &f2fs_stat_list);
-
        si->all_area_segs = le32_to_cpu(raw_super->segment_count);
        si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit);
        si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat);
@@ -325,21 +319,11 @@ static int init_stats(struct f2fs_sb_info *sbi)
        si->main_area_zones = si->main_area_sections /
                                le32_to_cpu(raw_super->secs_per_zone);
        si->sbi = sbi;
-       return 0;
-}
 
-int f2fs_build_stats(struct f2fs_sb_info *sbi)
-{
-       int retval;
-
-       retval = init_stats(sbi);
-       if (retval)
-               return retval;
-
-       if (!debugfs_root)
-               debugfs_root = debugfs_create_dir("f2fs", NULL);
+       mutex_lock(&f2fs_stat_mutex);
+       list_add_tail(&si->stat_list, &f2fs_stat_list);
+       mutex_unlock(&f2fs_stat_mutex);
 
-       debugfs_create_file("status", S_IRUGO, debugfs_root, NULL, &stat_fops);
        return 0;
 }
 
@@ -347,14 +331,22 @@ void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
 {
        struct f2fs_stat_info *si = sbi->stat_info;
 
+       mutex_lock(&f2fs_stat_mutex);
        list_del(&si->stat_list);
-       mutex_lock(&si->stat_lock);
-       si->sbi = NULL;
-       mutex_unlock(&si->stat_lock);
+       mutex_unlock(&f2fs_stat_mutex);
+
        kfree(sbi->stat_info);
 }
 
-void destroy_root_stats(void)
+void __init f2fs_create_root_stats(void)
+{
+       debugfs_root = debugfs_create_dir("f2fs", NULL);
+       if (debugfs_root)
+               debugfs_create_file("status", S_IRUGO, debugfs_root,
+                                        NULL, &stat_fops);
+}
+
+void f2fs_destroy_root_stats(void)
 {
        debugfs_remove_recursive(debugfs_root);
        debugfs_root = NULL;
index 951ed52..989980e 100644 (file)
@@ -503,7 +503,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
        }
 
        if (inode) {
-               inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+               inode->i_ctime = CURRENT_TIME;
                drop_nlink(inode);
                if (S_ISDIR(inode->i_mode)) {
                        drop_nlink(inode);
index 13c6dfb..c8e2d75 100644 (file)
@@ -211,11 +211,11 @@ struct dnode_of_data {
 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
                struct page *ipage, struct page *npage, nid_t nid)
 {
+       memset(dn, 0, sizeof(*dn));
        dn->inode = inode;
        dn->inode_page = ipage;
        dn->node_page = npage;
        dn->nid = nid;
-       dn->inode_page_locked = 0;
 }
 
 /*
@@ -877,6 +877,8 @@ bool f2fs_empty_dir(struct inode *);
  * super.c
  */
 int f2fs_sync_fs(struct super_block *, int);
+extern __printf(3, 4)
+void f2fs_msg(struct super_block *, const char *, const char *, ...);
 
 /*
  * hash.c
@@ -912,7 +914,7 @@ int restore_node_summary(struct f2fs_sb_info *, unsigned int,
 void flush_nat_entries(struct f2fs_sb_info *);
 int build_node_manager(struct f2fs_sb_info *);
 void destroy_node_manager(struct f2fs_sb_info *);
-int create_node_manager_caches(void);
+int __init create_node_manager_caches(void);
 void destroy_node_manager_caches(void);
 
 /*
@@ -964,7 +966,7 @@ void sync_dirty_dir_inodes(struct f2fs_sb_info *);
 void block_operations(struct f2fs_sb_info *);
 void write_checkpoint(struct f2fs_sb_info *, bool, bool);
 void init_orphan_info(struct f2fs_sb_info *);
-int create_checkpoint_caches(void);
+int __init create_checkpoint_caches(void);
 void destroy_checkpoint_caches(void);
 
 /*
@@ -984,9 +986,9 @@ int do_write_data_page(struct page *);
 int start_gc_thread(struct f2fs_sb_info *);
 void stop_gc_thread(struct f2fs_sb_info *);
 block_t start_bidx_of_node(unsigned int);
-int f2fs_gc(struct f2fs_sb_info *, int);
+int f2fs_gc(struct f2fs_sb_info *);
 void build_gc_manager(struct f2fs_sb_info *);
-int create_gc_caches(void);
+int __init create_gc_caches(void);
 void destroy_gc_caches(void);
 
 /*
@@ -1058,7 +1060,8 @@ struct f2fs_stat_info {
 
 int f2fs_build_stats(struct f2fs_sb_info *);
 void f2fs_destroy_stats(struct f2fs_sb_info *);
-void destroy_root_stats(void);
+void __init f2fs_create_root_stats(void);
+void f2fs_destroy_root_stats(void);
 #else
 #define stat_inc_call_count(si)
 #define stat_inc_seg_count(si, type)
@@ -1068,7 +1071,8 @@ void destroy_root_stats(void);
 
 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
-static inline void destroy_root_stats(void) { }
+static inline void __init f2fs_create_root_stats(void) { }
+static inline void f2fs_destroy_root_stats(void) { }
 #endif
 
 extern const struct file_operations f2fs_dir_operations;
index 7f9ea92..3191b52 100644 (file)
@@ -96,8 +96,9 @@ out:
 }
 
 static const struct vm_operations_struct f2fs_file_vm_ops = {
-       .fault        = filemap_fault,
-       .page_mkwrite = f2fs_vm_page_mkwrite,
+       .fault          = filemap_fault,
+       .page_mkwrite   = f2fs_vm_page_mkwrite,
+       .remap_pages    = generic_file_remap_pages,
 };
 
 static int need_to_sync_dir(struct f2fs_sb_info *sbi, struct inode *inode)
@@ -137,6 +138,9 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
        if (ret)
                return ret;
 
+       /* guarantee free sections for fsync */
+       f2fs_balance_fs(sbi);
+
        mutex_lock(&inode->i_mutex);
 
        if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
@@ -407,6 +411,8 @@ int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
                struct dnode_of_data dn;
                struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
 
+               f2fs_balance_fs(sbi);
+
                mutex_lock_op(sbi, DATA_TRUNC);
                set_new_dnode(&dn, inode, NULL, NULL, 0);
                err = get_dnode_of_data(&dn, index, RDONLY_NODE);
@@ -534,7 +540,6 @@ static long f2fs_fallocate(struct file *file, int mode,
                                loff_t offset, loff_t len)
 {
        struct inode *inode = file->f_path.dentry->d_inode;
-       struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
        long ret;
 
        if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
@@ -545,7 +550,10 @@ static long f2fs_fallocate(struct file *file, int mode,
        else
                ret = expand_inode_data(inode, offset, len, mode);
 
-       f2fs_balance_fs(sbi);
+       if (!ret) {
+               inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+               mark_inode_dirty(inode);
+       }
        return ret;
 }
 
index b0ec721..c386910 100644 (file)
@@ -78,7 +78,7 @@ static int gc_thread_func(void *data)
 
                sbi->bg_gc++;
 
-               if (f2fs_gc(sbi, 1) == GC_NONE)
+               if (f2fs_gc(sbi) == GC_NONE)
                        wait_ms = GC_THREAD_NOGC_SLEEP_TIME;
                else if (wait_ms == GC_THREAD_NOGC_SLEEP_TIME)
                        wait_ms = GC_THREAD_MAX_SLEEP_TIME;
@@ -424,7 +424,11 @@ next_step:
 }
 
 /*
- * Calculate start block index that this node page contains
+ * Calculate start block index indicating the given node offset.
+ * Be careful, caller should give this node offset only indicating direct node
+ * blocks. If any node offsets, which point the other types of node blocks such
+ * as indirect or double indirect node blocks, are given, it must be a caller's
+ * bug.
  */
 block_t start_bidx_of_node(unsigned int node_ofs)
 {
@@ -651,62 +655,44 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi, unsigned int segno,
        return ret;
 }
 
-int f2fs_gc(struct f2fs_sb_info *sbi, int nGC)
+int f2fs_gc(struct f2fs_sb_info *sbi)
 {
-       unsigned int segno;
-       int old_free_secs, cur_free_secs;
-       int gc_status, nfree;
        struct list_head ilist;
+       unsigned int segno, i;
        int gc_type = BG_GC;
+       int gc_status = GC_NONE;
 
        INIT_LIST_HEAD(&ilist);
 gc_more:
-       nfree = 0;
-       gc_status = GC_NONE;
+       if (!(sbi->sb->s_flags & MS_ACTIVE))
+               goto stop;
 
        if (has_not_enough_free_secs(sbi))
-               old_free_secs = reserved_sections(sbi);
-       else
-               old_free_secs = free_sections(sbi);
-
-       while (sbi->sb->s_flags & MS_ACTIVE) {
-               int i;
-               if (has_not_enough_free_secs(sbi))
-                       gc_type = FG_GC;
+               gc_type = FG_GC;
 
-               cur_free_secs = free_sections(sbi) + nfree;
+       if (!__get_victim(sbi, &segno, gc_type, NO_CHECK_TYPE))
+               goto stop;
 
-               /* We got free space successfully. */
-               if (nGC < cur_free_secs - old_free_secs)
-                       break;
-
-               if (!__get_victim(sbi, &segno, gc_type, NO_CHECK_TYPE))
+       for (i = 0; i < sbi->segs_per_sec; i++) {
+               /*
+                * do_garbage_collect will give us three gc_status:
+                * GC_ERROR, GC_DONE, and GC_BLOCKED.
+                * If GC is finished uncleanly, we have to return
+                * the victim to dirty segment list.
+                */
+               gc_status = do_garbage_collect(sbi, segno + i, &ilist, gc_type);
+               if (gc_status != GC_DONE)
                        break;
-
-               for (i = 0; i < sbi->segs_per_sec; i++) {
-                       /*
-                        * do_garbage_collect will give us three gc_status:
-                        * GC_ERROR, GC_DONE, and GC_BLOCKED.
-                        * If GC is finished uncleanly, we have to return
-                        * the victim to dirty segment list.
-                        */
-                       gc_status = do_garbage_collect(sbi, segno + i,
-                                       &ilist, gc_type);
-                       if (gc_status != GC_DONE)
-                               goto stop;
-                       nfree++;
-               }
        }
-stop:
-       if (has_not_enough_free_secs(sbi) || gc_status == GC_BLOCKED) {
+       if (has_not_enough_free_secs(sbi)) {
                write_checkpoint(sbi, (gc_status == GC_BLOCKED), false);
-               if (nfree)
+               if (has_not_enough_free_secs(sbi))
                        goto gc_more;
        }
+stop:
        mutex_unlock(&sbi->gc_mutex);
 
        put_gc_inode(&ilist);
-       BUG_ON(!list_empty(&ilist));
        return gc_status;
 }
 
@@ -715,7 +701,7 @@ void build_gc_manager(struct f2fs_sb_info *sbi)
        DIRTY_I(sbi)->v_ops = &default_v_ops;
 }
 
-int create_gc_caches(void)
+int __init create_gc_caches(void)
 {
        winode_slab = f2fs_kmem_cache_create("f2fs_gc_inodes",
                        sizeof(struct inode_entry), NULL);
index bf20b4d..7942417 100644 (file)
@@ -217,6 +217,9 @@ int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
                        inode->i_ino == F2FS_META_INO(sbi))
                return 0;
 
+       if (wbc)
+               f2fs_balance_fs(sbi);
+
        node_page = get_node_page(sbi, inode->i_ino);
        if (IS_ERR(node_page))
                return PTR_ERR(node_page);
index 5066bfd..9bda63c 100644 (file)
@@ -1124,6 +1124,12 @@ static int f2fs_write_node_page(struct page *page,
        return 0;
 }
 
+/*
+ * It is very important to gather dirty pages and write at once, so that we can
+ * submit a big bio without interfering other data writes.
+ * Be default, 512 pages (2MB), a segment size, is quite reasonable.
+ */
+#define COLLECT_DIRTY_NODES    512
 static int f2fs_write_node_pages(struct address_space *mapping,
                            struct writeback_control *wbc)
 {
@@ -1131,17 +1137,16 @@ static int f2fs_write_node_pages(struct address_space *mapping,
        struct block_device *bdev = sbi->sb->s_bdev;
        long nr_to_write = wbc->nr_to_write;
 
-       if (wbc->for_kupdate)
-               return 0;
-
-       if (get_pages(sbi, F2FS_DIRTY_NODES) == 0)
-               return 0;
-
+       /* First check balancing cached NAT entries */
        if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK)) {
                write_checkpoint(sbi, false, false);
                return 0;
        }
 
+       /* collect a number of dirty node pages and write together */
+       if (get_pages(sbi, F2FS_DIRTY_NODES) < COLLECT_DIRTY_NODES)
+               return 0;
+
        /* if mounting is failed, skip writing node pages */
        wbc->nr_to_write = bio_get_nr_vecs(bdev);
        sync_node_pages(sbi, 0, wbc);
@@ -1732,7 +1737,7 @@ void destroy_node_manager(struct f2fs_sb_info *sbi)
        kfree(nm_i);
 }
 
-int create_node_manager_caches(void)
+int __init create_node_manager_caches(void)
 {
        nat_entry_slab = f2fs_kmem_cache_create("nat_entry",
                        sizeof(struct nat_entry), NULL);
index b571fee..f42e406 100644 (file)
@@ -67,7 +67,7 @@ static int recover_dentry(struct page *ipage, struct inode *inode)
                kunmap(page);
                f2fs_put_page(page, 0);
        } else {
-               f2fs_add_link(&dent, inode);
+               err = f2fs_add_link(&dent, inode);
        }
        iput(dir);
 out:
@@ -151,7 +151,6 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head)
                                goto out;
                        }
 
-                       INIT_LIST_HEAD(&entry->list);
                        list_add_tail(&entry->list, head);
                        entry->blkaddr = blkaddr;
                }
@@ -174,10 +173,9 @@ out:
 static void destroy_fsync_dnodes(struct f2fs_sb_info *sbi,
                                        struct list_head *head)
 {
-       struct list_head *this;
-       struct fsync_inode_entry *entry;
-       list_for_each(this, head) {
-               entry = list_entry(this, struct fsync_inode_entry, list);
+       struct fsync_inode_entry *entry, *tmp;
+
+       list_for_each_entry_safe(entry, tmp, head, list) {
                iput(entry->inode);
                list_del(&entry->list);
                kmem_cache_free(fsync_entry_slab, entry);
index de62409..4b00990 100644 (file)
@@ -31,7 +31,7 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi)
         */
        if (has_not_enough_free_secs(sbi)) {
                mutex_lock(&sbi->gc_mutex);
-               f2fs_gc(sbi, 1);
+               f2fs_gc(sbi);
        }
 }
 
index 08a94c8..37fad04 100644 (file)
@@ -53,6 +53,18 @@ static match_table_t f2fs_tokens = {
        {Opt_err, NULL},
 };
 
+void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...)
+{
+       struct va_format vaf;
+       va_list args;
+
+       va_start(args, fmt);
+       vaf.fmt = fmt;
+       vaf.va = &args;
+       printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf);
+       va_end(args);
+}
+
 static void init_once(void *foo)
 {
        struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo;
@@ -125,6 +137,8 @@ int f2fs_sync_fs(struct super_block *sb, int sync)
 
        if (sync)
                write_checkpoint(sbi, false, false);
+       else
+               f2fs_balance_fs(sbi);
 
        return 0;
 }
@@ -247,7 +261,8 @@ static const struct export_operations f2fs_export_ops = {
        .get_parent = f2fs_get_parent,
 };
 
-static int parse_options(struct f2fs_sb_info *sbi, char *options)
+static int parse_options(struct super_block *sb, struct f2fs_sb_info *sbi,
+                               char *options)
 {
        substring_t args[MAX_OPT_ARGS];
        char *p;
@@ -286,7 +301,8 @@ static int parse_options(struct f2fs_sb_info *sbi, char *options)
                        break;
 #else
                case Opt_nouser_xattr:
-                       pr_info("nouser_xattr options not supported\n");
+                       f2fs_msg(sb, KERN_INFO,
+                               "nouser_xattr options not supported");
                        break;
 #endif
 #ifdef CONFIG_F2FS_FS_POSIX_ACL
@@ -295,7 +311,7 @@ static int parse_options(struct f2fs_sb_info *sbi, char *options)
                        break;
 #else
                case Opt_noacl:
-                       pr_info("noacl options not supported\n");
+                       f2fs_msg(sb, KERN_INFO, "noacl options not supported");
                        break;
 #endif
                case Opt_active_logs:
@@ -309,8 +325,9 @@ static int parse_options(struct f2fs_sb_info *sbi, char *options)
                        set_opt(sbi, DISABLE_EXT_IDENTIFY);
                        break;
                default:
-                       pr_err("Unrecognized mount option \"%s\" or missing value\n",
-                                       p);
+                       f2fs_msg(sb, KERN_ERR,
+                               "Unrecognized mount option \"%s\" or missing value",
+                               p);
                        return -EINVAL;
                }
        }
@@ -337,23 +354,36 @@ static loff_t max_file_size(unsigned bits)
        return result;
 }
 
-static int sanity_check_raw_super(struct f2fs_super_block *raw_super)
+static int sanity_check_raw_super(struct super_block *sb,
+                       struct f2fs_super_block *raw_super)
 {
        unsigned int blocksize;
 
-       if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic))
+       if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) {
+               f2fs_msg(sb, KERN_INFO,
+                       "Magic Mismatch, valid(0x%x) - read(0x%x)",
+                       F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
                return 1;
+       }
 
        /* Currently, support only 4KB block size */
        blocksize = 1 << le32_to_cpu(raw_super->log_blocksize);
-       if (blocksize != PAGE_CACHE_SIZE)
+       if (blocksize != PAGE_CACHE_SIZE) {
+               f2fs_msg(sb, KERN_INFO,
+                       "Invalid blocksize (%u), supports only 4KB\n",
+                       blocksize);
                return 1;
+       }
        if (le32_to_cpu(raw_super->log_sectorsize) !=
-                                       F2FS_LOG_SECTOR_SIZE)
+                                       F2FS_LOG_SECTOR_SIZE) {
+               f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize");
                return 1;
+       }
        if (le32_to_cpu(raw_super->log_sectors_per_block) !=
-                                       F2FS_LOG_SECTORS_PER_BLOCK)
+                                       F2FS_LOG_SECTORS_PER_BLOCK) {
+               f2fs_msg(sb, KERN_INFO, "Invalid log sectors per block");
                return 1;
+       }
        return 0;
 }
 
@@ -413,14 +443,17 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        if (!sbi)
                return -ENOMEM;
 
-       /* set a temporary block size */
-       if (!sb_set_blocksize(sb, F2FS_BLKSIZE))
+       /* set a block size */
+       if (!sb_set_blocksize(sb, F2FS_BLKSIZE)) {
+               f2fs_msg(sb, KERN_ERR, "unable to set blocksize");
                goto free_sbi;
+       }
 
        /* read f2fs raw super block */
        raw_super_buf = sb_bread(sb, 0);
        if (!raw_super_buf) {
                err = -EIO;
+               f2fs_msg(sb, KERN_ERR, "unable to read superblock");
                goto free_sbi;
        }
        raw_super = (struct f2fs_super_block *)
@@ -438,12 +471,14 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        set_opt(sbi, POSIX_ACL);
 #endif
        /* parse mount options */
-       if (parse_options(sbi, (char *)data))
+       if (parse_options(sb, sbi, (char *)data))
                goto free_sb_buf;
 
        /* sanity checking of raw super */
-       if (sanity_check_raw_super(raw_super))
+       if (sanity_check_raw_super(sb, raw_super)) {
+               f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem");
                goto free_sb_buf;
+       }
 
        sb->s_maxbytes = max_file_size(le32_to_cpu(raw_super->log_blocksize));
        sb->s_max_links = F2FS_LINK_MAX;
@@ -477,18 +512,23 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        /* get an inode for meta space */
        sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
        if (IS_ERR(sbi->meta_inode)) {
+               f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode");
                err = PTR_ERR(sbi->meta_inode);
                goto free_sb_buf;
        }
 
        err = get_valid_checkpoint(sbi);
-       if (err)
+       if (err) {
+               f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint");
                goto free_meta_inode;
+       }
 
        /* sanity checking of checkpoint */
        err = -EINVAL;
-       if (sanity_check_ckpt(raw_super, sbi->ckpt))
+       if (sanity_check_ckpt(raw_super, sbi->ckpt)) {
+               f2fs_msg(sb, KERN_ERR, "Invalid F2FS checkpoint");
                goto free_cp;
+       }
 
        sbi->total_valid_node_count =
                                le32_to_cpu(sbi->ckpt->valid_node_count);
@@ -502,25 +542,28 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        INIT_LIST_HEAD(&sbi->dir_inode_list);
        spin_lock_init(&sbi->dir_inode_lock);
 
-       /* init super block */
-       if (!sb_set_blocksize(sb, sbi->blocksize))
-               goto free_cp;
-
        init_orphan_info(sbi);
 
        /* setup f2fs internal modules */
        err = build_segment_manager(sbi);
-       if (err)
+       if (err) {
+               f2fs_msg(sb, KERN_ERR,
+                       "Failed to initialize F2FS segment manager");
                goto free_sm;
+       }
        err = build_node_manager(sbi);
-       if (err)
+       if (err) {
+               f2fs_msg(sb, KERN_ERR,
+                       "Failed to initialize F2FS node manager");
                goto free_nm;
+       }
 
        build_gc_manager(sbi);
 
        /* get an inode for node space */
        sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
        if (IS_ERR(sbi->node_inode)) {
+               f2fs_msg(sb, KERN_ERR, "Failed to read node inode");
                err = PTR_ERR(sbi->node_inode);
                goto free_nm;
        }
@@ -533,6 +576,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        /* read root inode and dentry */
        root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
        if (IS_ERR(root)) {
+               f2fs_msg(sb, KERN_ERR, "Failed to read root inode");
                err = PTR_ERR(root);
                goto free_node_inode;
        }
@@ -596,7 +640,7 @@ static struct file_system_type f2fs_fs_type = {
        .fs_flags       = FS_REQUIRES_DEV,
 };
 
-static int init_inodecache(void)
+static int __init init_inodecache(void)
 {
        f2fs_inode_cachep = f2fs_kmem_cache_create("f2fs_inode_cache",
                        sizeof(struct f2fs_inode_info), NULL);
@@ -631,14 +675,17 @@ static int __init init_f2fs_fs(void)
        err = create_checkpoint_caches();
        if (err)
                goto fail;
-       return register_filesystem(&f2fs_fs_type);
+       err = register_filesystem(&f2fs_fs_type);
+       if (err)
+               goto fail;
+       f2fs_create_root_stats();
 fail:
        return err;
 }
 
 static void __exit exit_f2fs_fs(void)
 {
-       destroy_root_stats();
+       f2fs_destroy_root_stats();
        unregister_filesystem(&f2fs_fs_type);
        destroy_checkpoint_caches();
        destroy_gc_caches();
index 940136a..8038c04 100644 (file)
@@ -318,6 +318,8 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
        if (name_len > 255 || value_len > MAX_VALUE_LEN)
                return -ERANGE;
 
+       f2fs_balance_fs(sbi);
+
        mutex_lock_op(sbi, NODE_NEW);
        if (!fi->i_xattr_nid) {
                /* Allocate new attribute block */
index 0cf160a..1b2f6c2 100644 (file)
@@ -4,12 +4,24 @@ config FUSE_FS
          With FUSE it is possible to implement a fully functional filesystem
          in a userspace program.
 
-         There's also companion library: libfuse.  This library along with
-         utilities is available from the FUSE homepage:
+         There's also a companion library: libfuse2.  This library is available
+         from the FUSE homepage:
          <http://fuse.sourceforge.net/>
+         although chances are your distribution already has that library
+         installed if you've installed the "fuse" package itself.
 
          See <file:Documentation/filesystems/fuse.txt> for more information.
          See <file:Documentation/Changes> for needed library/utility version.
 
          If you want to develop a userspace FS, or if you want to use
          a filesystem based on FUSE, answer Y or M.
+
+config CUSE
+       tristate "Character device in Userspace support"
+       depends on FUSE_FS
+       help
+         This FUSE extension allows character devices to be
+         implemented in userspace.
+
+         If you want to develop or use a userspace character device
+         based on CUSE, answer Y or M.
index ee8d550..e397b67 100644 (file)
@@ -45,7 +45,6 @@
 #include <linux/miscdevice.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
-#include <linux/spinlock.h>
 #include <linux/stat.h>
 #include <linux/module.h>
 
@@ -63,7 +62,7 @@ struct cuse_conn {
        bool                    unrestricted_ioctl;
 };
 
-static DEFINE_SPINLOCK(cuse_lock);             /* protects cuse_conntbl */
+static DEFINE_MUTEX(cuse_lock);                /* protects registration */
 static struct list_head cuse_conntbl[CUSE_CONNTBL_LEN];
 static struct class *cuse_class;
 
@@ -114,14 +113,14 @@ static int cuse_open(struct inode *inode, struct file *file)
        int rc;
 
        /* look up and get the connection */
-       spin_lock(&cuse_lock);
+       mutex_lock(&cuse_lock);
        list_for_each_entry(pos, cuse_conntbl_head(devt), list)
                if (pos->dev->devt == devt) {
                        fuse_conn_get(&pos->fc);
                        cc = pos;
                        break;
                }
-       spin_unlock(&cuse_lock);
+       mutex_unlock(&cuse_lock);
 
        /* dead? */
        if (!cc)
@@ -267,7 +266,7 @@ static int cuse_parse_one(char **pp, char *end, char **keyp, char **valp)
 static int cuse_parse_devinfo(char *p, size_t len, struct cuse_devinfo *devinfo)
 {
        char *end = p + len;
-       char *key, *val;
+       char *uninitialized_var(key), *uninitialized_var(val);
        int rc;
 
        while (true) {
@@ -305,14 +304,14 @@ static void cuse_gendev_release(struct device *dev)
  */
 static void cuse_process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
 {
-       struct cuse_conn *cc = fc_to_cc(fc);
+       struct cuse_conn *cc = fc_to_cc(fc), *pos;
        struct cuse_init_out *arg = req->out.args[0].value;
        struct page *page = req->pages[0];
        struct cuse_devinfo devinfo = { };
        struct device *dev;
        struct cdev *cdev;
        dev_t devt;
-       int rc;
+       int rc, i;
 
        if (req->out.h.error ||
            arg->major != FUSE_KERNEL_VERSION || arg->minor < 11) {
@@ -356,15 +355,24 @@ static void cuse_process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
        dev_set_drvdata(dev, cc);
        dev_set_name(dev, "%s", devinfo.name);
 
+       mutex_lock(&cuse_lock);
+
+       /* make sure the device-name is unique */
+       for (i = 0; i < CUSE_CONNTBL_LEN; ++i) {
+               list_for_each_entry(pos, &cuse_conntbl[i], list)
+                       if (!strcmp(dev_name(pos->dev), dev_name(dev)))
+                               goto err_unlock;
+       }
+
        rc = device_add(dev);
        if (rc)
-               goto err_device;
+               goto err_unlock;
 
        /* register cdev */
        rc = -ENOMEM;
        cdev = cdev_alloc();
        if (!cdev)
-               goto err_device;
+               goto err_unlock;
 
        cdev->owner = THIS_MODULE;
        cdev->ops = &cuse_frontend_fops;
@@ -377,9 +385,8 @@ static void cuse_process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
        cc->cdev = cdev;
 
        /* make the device available */
-       spin_lock(&cuse_lock);
        list_add(&cc->list, cuse_conntbl_head(devt));
-       spin_unlock(&cuse_lock);
+       mutex_unlock(&cuse_lock);
 
        /* announce device availability */
        dev_set_uevent_suppress(dev, 0);
@@ -391,7 +398,8 @@ out:
 
 err_cdev:
        cdev_del(cdev);
-err_device:
+err_unlock:
+       mutex_unlock(&cuse_lock);
        put_device(dev);
 err_region:
        unregister_chrdev_region(devt, 1);
@@ -520,9 +528,9 @@ static int cuse_channel_release(struct inode *inode, struct file *file)
        int rc;
 
        /* remove from the conntbl, no more access from this point on */
-       spin_lock(&cuse_lock);
+       mutex_lock(&cuse_lock);
        list_del_init(&cc->list);
-       spin_unlock(&cuse_lock);
+       mutex_unlock(&cuse_lock);
 
        /* remove device */
        if (cc->dev)
index c163353..e83351a 100644 (file)
@@ -692,8 +692,6 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
        struct page *oldpage = *pagep;
        struct page *newpage;
        struct pipe_buffer *buf = cs->pipebufs;
-       struct address_space *mapping;
-       pgoff_t index;
 
        unlock_request(cs->fc, cs->req);
        fuse_copy_finish(cs);
@@ -724,9 +722,6 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
        if (fuse_check_page(newpage) != 0)
                goto out_fallback_unlock;
 
-       mapping = oldpage->mapping;
-       index = oldpage->index;
-
        /*
         * This is a new and locked page, it shouldn't be mapped or
         * have any special flags on it
index e21d4d8..f3ab824 100644 (file)
@@ -2177,8 +2177,8 @@ fuse_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
        return ret;
 }
 
-long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
-                           loff_t length)
+static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
+                               loff_t length)
 {
        struct fuse_file *ff = file->private_data;
        struct fuse_conn *fc = ff->fc;
@@ -2213,7 +2213,6 @@ long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
 
        return err;
 }
-EXPORT_SYMBOL_GPL(fuse_file_fallocate);
 
 static const struct file_operations fuse_file_operations = {
        .llseek         = fuse_file_llseek,
index ccf7b4f..6c32af9 100644 (file)
@@ -16,6 +16,22 @@ extern void
 dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
                    dma_addr_t dma_handle);
 
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                   dma_addr_t *dma_handle, gfp_t flag,
+                                   struct dma_attrs *attrs)
+{
+       /* attrs is not supported and ignored */
+       return dma_alloc_coherent(dev, size, dma_handle, flag);
+}
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                 void *cpu_addr, dma_addr_t dma_handle,
+                                 struct dma_attrs *attrs)
+{
+       /* attrs is not supported and ignored */
+       dma_free_coherent(dev, size, cpu_addr, dma_handle);
+}
+
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
 
index 408da95..8f7a3d6 100644 (file)
@@ -297,10 +297,12 @@ enum {
        ATA_LOG_SATA_NCQ        = 0x10,
        ATA_LOG_SATA_ID_DEV_DATA  = 0x30,
        ATA_LOG_SATA_SETTINGS     = 0x08,
-       ATA_LOG_DEVSLP_MDAT       = 0x30,
+       ATA_LOG_DEVSLP_OFFSET     = 0x30,
+       ATA_LOG_DEVSLP_SIZE       = 0x08,
+       ATA_LOG_DEVSLP_MDAT       = 0x00,
        ATA_LOG_DEVSLP_MDAT_MASK  = 0x1F,
-       ATA_LOG_DEVSLP_DETO       = 0x31,
-       ATA_LOG_DEVSLP_VALID      = 0x37,
+       ATA_LOG_DEVSLP_DETO       = 0x01,
+       ATA_LOG_DEVSLP_VALID      = 0x07,
        ATA_LOG_DEVSLP_VALID_MASK = 0x80,
 
        /* READ/WRITE LONG (obsolete) */
index 83ba0ab..649e5f8 100644 (file)
@@ -652,8 +652,8 @@ struct ata_device {
                u32             gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */
        };
 
-       /* Identify Device Data Log (30h), SATA Settings (page 08h) */
-       u8                      sata_settings[ATA_SECT_SIZE];
+       /* DEVSLP Timing Variables from Identify Device Data Log */
+       u8                      devslp_timing[ATA_LOG_DEVSLP_SIZE];
 
        /* error history */
        int                     spdn_cnt;
index 6fc8f45..d211247 100644 (file)
@@ -2714,7 +2714,16 @@ static inline void thread_group_cputime_init(struct signal_struct *sig)
 extern void recalc_sigpending_and_wake(struct task_struct *t);
 extern void recalc_sigpending(void);
 
-extern void signal_wake_up(struct task_struct *t, int resume_stopped);
+extern void signal_wake_up_state(struct task_struct *t, unsigned int state);
+
+static inline void signal_wake_up(struct task_struct *t, bool resume)
+{
+       signal_wake_up_state(t, resume ? TASK_WAKEKILL : 0);
+}
+static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume)
+{
+       signal_wake_up_state(t, resume ? __TASK_TRACED : 0);
+}
 
 /*
  * Wrappers for p->thread_info->cpu access. No-op on UP.
index a1d585c..6f34904 100644 (file)
@@ -86,18 +86,27 @@ static atomic_t entry_count;
  */
 static async_cookie_t  __lowest_in_progress(struct async_domain *running)
 {
+       async_cookie_t first_running = next_cookie;     /* infinity value */
+       async_cookie_t first_pending = next_cookie;     /* ditto */
        struct async_entry *entry;
 
+       /*
+        * Both running and pending lists are sorted but not disjoint.
+        * Take the first cookies from both and return the min.
+        */
        if (!list_empty(&running->domain)) {
                entry = list_first_entry(&running->domain, typeof(*entry), list);
-               return entry->cookie;
+               first_running = entry->cookie;
        }
 
-       list_for_each_entry(entry, &async_pending, list)
-               if (entry->running == running)
-                       return entry->cookie;
+       list_for_each_entry(entry, &async_pending, list) {
+               if (entry->running == running) {
+                       first_pending = entry->cookie;
+                       break;
+               }
+       }
 
-       return next_cookie;     /* "infinity" value */
+       return min(first_running, first_pending);
 }
 
 static async_cookie_t  lowest_in_progress(struct async_domain *running)
@@ -118,13 +127,17 @@ static void async_run_entry_fn(struct work_struct *work)
 {
        struct async_entry *entry =
                container_of(work, struct async_entry, work);
+       struct async_entry *pos;
        unsigned long flags;
        ktime_t uninitialized_var(calltime), delta, rettime;
        struct async_domain *running = entry->running;
 
-       /* 1) move self to the running queue */
+       /* 1) move self to the running queue, make sure it stays sorted */
        spin_lock_irqsave(&async_lock, flags);
-       list_move_tail(&entry->list, &running->domain);
+       list_for_each_entry_reverse(pos, &running->domain, list)
+               if (entry->cookie < pos->cookie)
+                       break;
+       list_move_tail(&entry->list, &pos->list);
        spin_unlock_irqrestore(&async_lock, flags);
 
        /* 2) run (and print duration) */
index 612a561..6cbeaae 100644 (file)
@@ -117,11 +117,45 @@ void __ptrace_unlink(struct task_struct *child)
         * TASK_KILLABLE sleeps.
         */
        if (child->jobctl & JOBCTL_STOP_PENDING || task_is_traced(child))
-               signal_wake_up(child, task_is_traced(child));
+               ptrace_signal_wake_up(child, true);
 
        spin_unlock(&child->sighand->siglock);
 }
 
+/* Ensure that nothing can wake it up, even SIGKILL */
+static bool ptrace_freeze_traced(struct task_struct *task)
+{
+       bool ret = false;
+
+       /* Lockless, nobody but us can set this flag */
+       if (task->jobctl & JOBCTL_LISTENING)
+               return ret;
+
+       spin_lock_irq(&task->sighand->siglock);
+       if (task_is_traced(task) && !__fatal_signal_pending(task)) {
+               task->state = __TASK_TRACED;
+               ret = true;
+       }
+       spin_unlock_irq(&task->sighand->siglock);
+
+       return ret;
+}
+
+static void ptrace_unfreeze_traced(struct task_struct *task)
+{
+       if (task->state != __TASK_TRACED)
+               return;
+
+       WARN_ON(!task->ptrace || task->parent != current);
+
+       spin_lock_irq(&task->sighand->siglock);
+       if (__fatal_signal_pending(task))
+               wake_up_state(task, __TASK_TRACED);
+       else
+               task->state = TASK_TRACED;
+       spin_unlock_irq(&task->sighand->siglock);
+}
+
 /**
  * ptrace_check_attach - check whether ptracee is ready for ptrace operation
  * @child: ptracee to check for
@@ -151,24 +185,29 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
         * be changed by us so it's not changing right after this.
         */
        read_lock(&tasklist_lock);
-       if ((child->ptrace & PT_PTRACED) && child->parent == current) {
+       if (child->ptrace && child->parent == current) {
+               WARN_ON(child->state == __TASK_TRACED);
                /*
                 * child->sighand can't be NULL, release_task()
                 * does ptrace_unlink() before __exit_signal().
                 */
-               spin_lock_irq(&child->sighand->siglock);
-               WARN_ON_ONCE(task_is_stopped(child));
-               if (ignore_state || (task_is_traced(child) &&
-                                    !(child->jobctl & JOBCTL_LISTENING)))
+               if (ignore_state || ptrace_freeze_traced(child))
                        ret = 0;
-               spin_unlock_irq(&child->sighand->siglock);
        }
        read_unlock(&tasklist_lock);
 
-       if (!ret && !ignore_state)
-               ret = wait_task_inactive(child, TASK_TRACED) ? 0 : -ESRCH;
+       if (!ret && !ignore_state) {
+               if (!wait_task_inactive(child, __TASK_TRACED)) {
+                       /*
+                        * This can only happen if may_ptrace_stop() fails and
+                        * ptrace_stop() changes ->state back to TASK_RUNNING,
+                        * so we should not worry about leaking __TASK_TRACED.
+                        */
+                       WARN_ON(child->state == __TASK_TRACED);
+                       ret = -ESRCH;
+               }
+       }
 
-       /* All systems go.. */
        return ret;
 }
 
@@ -317,7 +356,7 @@ static int ptrace_attach(struct task_struct *task, long request,
         */
        if (task_is_stopped(task) &&
            task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING))
-               signal_wake_up(task, 1);
+               signal_wake_up_state(task, __TASK_STOPPED);
 
        spin_unlock(&task->sighand->siglock);
 
@@ -737,7 +776,7 @@ int ptrace_request(struct task_struct *child, long request,
                 * tracee into STOP.
                 */
                if (likely(task_set_jobctl_pending(child, JOBCTL_TRAP_STOP)))
-                       signal_wake_up(child, child->jobctl & JOBCTL_LISTENING);
+                       ptrace_signal_wake_up(child, child->jobctl & JOBCTL_LISTENING);
 
                unlock_task_sighand(child, &flags);
                ret = 0;
@@ -763,7 +802,7 @@ int ptrace_request(struct task_struct *child, long request,
                         * start of this trap and now.  Trigger re-trap.
                         */
                        if (child->jobctl & JOBCTL_TRAP_NOTIFY)
-                               signal_wake_up(child, true);
+                               ptrace_signal_wake_up(child, true);
                        ret = 0;
                }
                unlock_task_sighand(child, &flags);
@@ -900,6 +939,8 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
                goto out_put_task_struct;
 
        ret = arch_ptrace(child, request, addr, data);
+       if (ret || request != PTRACE_DETACH)
+               ptrace_unfreeze_traced(child);
 
  out_put_task_struct:
        put_task_struct(child);
@@ -1039,8 +1080,11 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
 
        ret = ptrace_check_attach(child, request == PTRACE_KILL ||
                                  request == PTRACE_INTERRUPT);
-       if (!ret)
+       if (!ret) {
                ret = compat_arch_ptrace(child, request, addr, data);
+               if (ret || request != PTRACE_DETACH)
+                       ptrace_unfreeze_traced(child);
+       }
 
  out_put_task_struct:
        put_task_struct(child);
index 257002c..26058d0 100644 (file)
@@ -1523,7 +1523,8 @@ out:
  */
 int wake_up_process(struct task_struct *p)
 {
-       return try_to_wake_up(p, TASK_ALL, 0);
+       WARN_ON(task_is_stopped_or_traced(p));
+       return try_to_wake_up(p, TASK_NORMAL, 0);
 }
 EXPORT_SYMBOL(wake_up_process);
 
index 53cd5c4..3d09cf6 100644 (file)
@@ -680,23 +680,17 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
  * No need to set need_resched since signal event passing
  * goes through ->blocked
  */
-void signal_wake_up(struct task_struct *t, int resume)
+void signal_wake_up_state(struct task_struct *t, unsigned int state)
 {
-       unsigned int mask;
-
        set_tsk_thread_flag(t, TIF_SIGPENDING);
-
        /*
-        * For SIGKILL, we want to wake it up in the stopped/traced/killable
+        * TASK_WAKEKILL also means wake it up in the stopped/traced/killable
         * case. We don't check t->state here because there is a race with it
         * executing another processor and just now entering stopped state.
         * By using wake_up_state, we ensure the process will wake up and
         * handle its death signal.
         */
-       mask = TASK_INTERRUPTIBLE;
-       if (resume)
-               mask |= TASK_WAKEKILL;
-       if (!wake_up_state(t, mask))
+       if (!wake_up_state(t, state | TASK_INTERRUPTIBLE))
                kick_process(t);
 }
 
@@ -844,7 +838,7 @@ static void ptrace_trap_notify(struct task_struct *t)
        assert_spin_locked(&t->sighand->siglock);
 
        task_set_jobctl_pending(t, JOBCTL_TRAP_NOTIFY);
-       signal_wake_up(t, t->jobctl & JOBCTL_LISTENING);
+       ptrace_signal_wake_up(t, t->jobctl & JOBCTL_LISTENING);
 }
 
 /*
@@ -1800,6 +1794,10 @@ static inline int may_ptrace_stop(void)
         * If SIGKILL was already sent before the caller unlocked
         * ->siglock we must see ->core_state != NULL. Otherwise it
         * is safe to enter schedule().
+        *
+        * This is almost outdated, a task with the pending SIGKILL can't
+        * block in TASK_TRACED. But PTRACE_EVENT_EXIT can be reported
+        * after SIGKILL was already dequeued.
         */
        if (unlikely(current->mm->core_state) &&
            unlikely(current->mm == current->parent->mm))
@@ -1925,6 +1923,7 @@ static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info)
                if (gstop_done)
                        do_notify_parent_cldstop(current, false, why);
 
+               /* tasklist protects us from ptrace_freeze_traced() */
                __set_current_state(TASK_RUNNING);
                if (clear_code)
                        current->exit_code = 0;
index 3ffe4c5..41473b4 100644 (file)
@@ -3998,7 +3998,7 @@ static int ftrace_module_notify(struct notifier_block *self,
 
 struct notifier_block ftrace_module_nb = {
        .notifier_call = ftrace_module_notify,
-       .priority = 0,
+       .priority = INT_MAX,    /* Run before anything that can use kprobes */
 };
 
 extern unsigned long __start_mcount_loc[];
index 19ecc8d..d794abc 100644 (file)
@@ -215,7 +215,9 @@ static void devcgroup_css_free(struct cgroup *cgroup)
        struct dev_cgroup *dev_cgroup;
 
        dev_cgroup = cgroup_to_devcgroup(cgroup);
+       mutex_lock(&devcgroup_mutex);
        dev_exception_clean(dev_cgroup);
+       mutex_unlock(&devcgroup_mutex);
        kfree(dev_cgroup);
 }
 
index dfb2691..7dd538e 100644 (file)
@@ -205,9 +205,9 @@ int evm_update_evmxattr(struct dentry *dentry, const char *xattr_name,
                rc = __vfs_setxattr_noperm(dentry, XATTR_NAME_EVM,
                                           &xattr_data,
                                           sizeof(xattr_data), 0);
-       }
-       else if (rc == -ENODATA)
+       } else if (rc == -ENODATA && inode->i_op->removexattr) {
                rc = inode->i_op->removexattr(dentry, XATTR_NAME_EVM);
+       }
        return rc;
 }
 
index b8fb0a5..822df97 100644 (file)
@@ -3654,6 +3654,7 @@ static void hda_call_codec_resume(struct hda_codec *codec)
        hda_set_power_state(codec, AC_PWRST_D0);
        restore_shutup_pins(codec);
        hda_exec_init_verbs(codec);
+       snd_hda_jack_set_dirty_all(codec);
        if (codec->patch_ops.resume)
                codec->patch_ops.resume(codec);
        else {
@@ -3665,10 +3666,8 @@ static void hda_call_codec_resume(struct hda_codec *codec)
 
        if (codec->jackpoll_interval)
                hda_jackpoll_work(&codec->jackpoll_work.work);
-       else {
-               snd_hda_jack_set_dirty_all(codec);
+       else
                snd_hda_jack_report_sync(codec);
-       }
 
        codec->in_pm = 0;
        snd_hda_power_down(codec); /* flag down before returning */
index dd798c3..009b77a 100644 (file)
@@ -4636,6 +4636,12 @@ static const struct hda_codec_preset snd_hda_preset_conexant[] = {
          .patch = patch_conexant_auto },
        { .id = 0x14f15111, .name = "CX20753/4",
          .patch = patch_conexant_auto },
+       { .id = 0x14f15113, .name = "CX20755",
+         .patch = patch_conexant_auto },
+       { .id = 0x14f15114, .name = "CX20756",
+         .patch = patch_conexant_auto },
+       { .id = 0x14f15115, .name = "CX20757",
+         .patch = patch_conexant_auto },
        {} /* terminator */
 };
 
@@ -4659,6 +4665,9 @@ MODULE_ALIAS("snd-hda-codec-id:14f150b9");
 MODULE_ALIAS("snd-hda-codec-id:14f1510f");
 MODULE_ALIAS("snd-hda-codec-id:14f15110");
 MODULE_ALIAS("snd-hda-codec-id:14f15111");
+MODULE_ALIAS("snd-hda-codec-id:14f15113");
+MODULE_ALIAS("snd-hda-codec-id:14f15114");
+MODULE_ALIAS("snd-hda-codec-id:14f15115");
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Conexant HD-audio codec");
index f519627..cf38861 100644 (file)
@@ -6251,6 +6251,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x1025, 0x0349, "Acer AOD260", ALC269_FIXUP_INV_DMIC),
        SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_MIC2_MUTE_LED),
        SND_PCI_QUIRK(0x103c, 0x1972, "HP Pavilion 17", ALC269_FIXUP_MIC1_MUTE_LED),
+       SND_PCI_QUIRK(0x103c, 0x1977, "HP Pavilion 14", ALC269_FIXUP_MIC1_MUTE_LED),
        SND_PCI_QUIRK(0x1043, 0x1427, "Asus Zenbook UX31E", ALC269VB_FIXUP_DMIC),
        SND_PCI_QUIRK(0x1043, 0x1517, "Asus Zenbook UX31A", ALC269VB_FIXUP_DMIC),
        SND_PCI_QUIRK(0x1043, 0x1a13, "Asus G73Jw", ALC269_FIXUP_ASUS_G73JW),
@@ -6265,6 +6266,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x104d, 0x9084, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
        SND_PCI_QUIRK_VENDOR(0x104d, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
        SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
+       SND_PCI_QUIRK(0x1025, 0x0740, "Acer AO725", ALC271_FIXUP_HP_GATE_MIC_JACK),
        SND_PCI_QUIRK(0x1025, 0x0742, "Acer AO756", ALC271_FIXUP_HP_GATE_MIC_JACK),
        SND_PCI_QUIRK_VENDOR(0x1025, "Acer Aspire", ALC271_FIXUP_DMIC),
        SND_PCI_QUIRK(0x10cf, 0x1475, "Lifebook", ALC269_FIXUP_LIFEBOOK),
index 80db3f4..39d4106 100644 (file)
@@ -11,11 +11,21 @@ lib/rbtree.c
 include/linux/swab.h
 arch/*/include/asm/unistd*.h
 arch/*/include/asm/perf_regs.h
+arch/*/include/uapi/asm/unistd*.h
+arch/*/include/uapi/asm/perf_regs.h
 arch/*/lib/memcpy*.S
 arch/*/lib/memset*.S
 include/linux/poison.h
 include/linux/magic.h
 include/linux/hw_breakpoint.h
+include/linux/rbtree_augmented.h
+include/uapi/linux/perf_event.h
+include/uapi/linux/const.h
+include/uapi/linux/swab.h
+include/uapi/linux/hw_breakpoint.h
 arch/x86/include/asm/svm.h
 arch/x86/include/asm/vmx.h
 arch/x86/include/asm/kvm_host.h
+arch/x86/include/uapi/asm/svm.h
+arch/x86/include/uapi/asm/vmx.h
+arch/x86/include/uapi/asm/kvm.h
index 891bc77..8ab05e5 100644 (file)
@@ -58,7 +58,7 @@ ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
                                  -e s/arm.*/arm/ -e s/sa110/arm/ \
                                  -e s/s390x/s390/ -e s/parisc64/parisc/ \
                                  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-                                 -e s/sh[234].*/sh/ )
+                                 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
 NO_PERF_REGS := 1
 
 CC = $(CROSS_COMPILE)gcc