Adheer Chandravanshi [Tue, 17 Sep 2013 11:54:46 +0000 (07:54 -0400)]
[SCSI] qla4xxx: Populate local CHAP credentials for flash target sessions
If any flash target entry is using CHAP authentication then set
CHAP username and password sysfs params for the corresponding
iscsi sessions.
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Adheer Chandravanshi [Tue, 17 Sep 2013 11:54:45 +0000 (07:54 -0400)]
[SCSI] qla4xxx: Support setting of local CHAP index for flash target entry
Support setting of CHAP_OUT_IDX param for the target entry in flash.
Setting of valid local CHAP index with enable CHAP AUTH for that
flash target entry and disabling CHAP AUTH will invalidate the CHAP
index for the flash target entry.
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Adheer Chandravanshi [Tue, 17 Sep 2013 11:54:44 +0000 (07:54 -0400)]
[SCSI] qla4xxx: Correct the check for local CHAP entry type
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Manish Rangankar [Tue, 17 Sep 2013 11:30:02 +0000 (07:30 -0400)]
[SCSI] qla4xxx: correctly update session discovery_parent_idx.
Earlier logic for driver created iscsi_session->discovery_parent_idx
was to store ram index of a sendtarget entry, but driver frees
sendtarget ram index as soon as firmware is done with discovery,
which is available for further use. So changing the logic to point
iscsi_session->discovery_parent_idx to store sendtarget flashnode index.
Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Sumit.Saxena@lsi.com [Mon, 16 Sep 2013 09:48:06 +0000 (15:18 +0530)]
[SCSI] megaraid_sas: fixes for few endianess issues
Fixed two issues in this patch-
1) In function megasas_get_pd_list(), data read(pd_addr->deviceId) from DMAed memory is converted to CPU's endianess.
2) While register AEN, removed some endianness conversion on some fields, since their endianess is already converted.
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Khalid Aziz [Fri, 13 Sep 2013 19:44:06 +0000 (13:44 -0600)]
[SCSI] buslogic: Added check for DMA mapping errors
Added check for DMA mapping errors for request sense data
buffer. Checking for mapping error can avoid potential wild
writes. This patch was prompted by the warning from
dma_unmap when kernel is compiled with CONFIG_DMA_API_DEBUG.
Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Hiral Patel [Fri, 13 Sep 2013 00:45:43 +0000 (17:45 -0700)]
[SCSI] fnic: Incremented driver version
Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Hiral Patel [Fri, 13 Sep 2013 00:45:42 +0000 (17:45 -0700)]
[SCSI] fnic: Fnic Statistics Collection
This feature gathers active and cumulative per fnic stats for io,
abort, terminate, reset, vlan discovery path and it also includes
various important stats for debugging issues. It also provided
debugfs and ioctl interface for user to retrieve these stats.
It also provides functionality to reset cumulative stats through
user interface.
Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Narsimhulu Musini [Fri, 13 Sep 2013 00:45:41 +0000 (17:45 -0700)]
[SCSI] fnic: host reset returns nonzero value(errno) on success
Fixed appropriate error codes that returns negative error number on failure,
and 0 on success. fnic_reset() is used directly by the fc transport callback
issue_fc_host_lip which requires a negative error number on failure.
Signed-off-by: Narsimhulu Musini <nmusini@cisco.com>
Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Jack Wang [Thu, 12 Sep 2013 15:29:52 +0000 (17:29 +0200)]
[SCSI] export device_busy for sdev
If you mutiple devices connect to a host, we might be interested in
have an intensive I/O workload on one disk, and notice starvation on others.
This give the user more hint about current infight io for scsi device.
Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Stewart, Sean [Wed, 11 Sep 2013 22:54:07 +0000 (22:54 +0000)]
[SCSI] scsi_dh_rdac: Add new IBM 1813 product id to rdac devlist
Signed-off-by: Sean Stewart <Sean.Stewart@netapp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Jon Mason [Wed, 11 Sep 2013 22:38:13 +0000 (15:38 -0700)]
[SCSI] lpfc: remove unnecessary read of PCI_CAP_ID_EXP
The PCIE capability offset is saved during PCI bus walking. It will
remove an unnecessary search in the PCI configuration space if this
value is referenced instead of reacquiring it. Also, pci_is_pcie is a
better way of determining if the device is PCIE or not (as it uses the
same saved PCIE capability offset).
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Mike Miller [Tue, 10 Sep 2013 18:18:23 +0000 (13:18 -0500)]
[SCSI] hpsa: remove unused Smart Array ID
This patch removes the PCI ID of a cancelled Smart Array.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Aaron Lu [Thu, 10 Oct 2013 05:22:36 +0000 (13:22 +0800)]
[SCSI] sd: call blk_pm_runtime_init before add_disk
Sujit has found a race condition that would make q->nr_pending
unbalanced, it occurs as Sujit explained:
"
sd_probe_async() ->
add_disk() ->
disk_add_event() ->
schedule(disk_events_workfn)
sd_revalidate_disk()
blk_pm_runtime_init()
return;
Let's say the disk_events_workfn() calls sd_check_events() which tries
to send test_unit_ready() and because of sd_revalidate_disk() trying to
send another commands the test_unit_ready() might be re-queued as the
tagged command queuing is disabled.
So the race condition is -
Thread 1 | Thread 2
sd_revalidate_disk() | sd_check_events()
...nr_pending = 0 as q->dev = NULL| scsi_queue_insert()
blk_runtime_pm_init() | blk_pm_requeue_request() ->
| nr_pending = -1 since
| q->dev != NULL
"
The problem is, the test_unit_ready request doesn't get counted the
first time it is queued, so the later decrement of q->nr_pending in
blk_pm_requeue_request makes it unbalanced.
Fix this by calling blk_pm_runtime_init before add_disk so that all
requests initiated there will all be counted.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Reported-and-tested-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Chad Dupuis [Thu, 3 Oct 2013 07:21:13 +0000 (03:21 -0400)]
[SCSI] qla2xxx: Fix request queue null dereference.
If an invalid IOCB is returned on the response queue then the index into the
request queue map could be invalid and could return to us a bogus value. This
could cause us to try to deference an invalid pointer and cause an exception.
If we encounter this condition, simply return as no context can be established
for this response.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Khalid Aziz [Wed, 25 Sep 2013 17:45:11 +0000 (11:45 -0600)]
[SCSI] BusLogic: Fix an oops when intializing multimaster adapter
This fixes an oops caused by buslogic driver when initializing a BusLogic
MultiMaster adapter. Initialization code used scope of a variable
incorrectly which created a NULL pointer. Oops message is below:
BUG: unable to handle kernel NULL pointer dereference at
0000000c
IP: [<
c150c137>] blogic_init_mm_probeinfo.isra.17+0x20a/0x583
*pde =
00000000
Oops: 002 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.11.1.puz1 #1
Hardware name: /Canterwood, BIOS 6.00 PG 05/16/2003
task:
f7050000 ti:
f7054000 task.ti:
f7054000
EIP: 0060:[<
c150c137>] EFLAGS:
00010246 CPU:1
EIP is at blogic_init_mm_probeinfo.isra.17+0x20a/0x583
EAX:
00000013 EBX:
00000000 ECX:
00000000 EDX:
f8001000
ESI:
f71cb800 EDI:
f7388000 EBP:
00007800 ESP:
f7055c84
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
CR0:
8005003b CR2:
0000000c CR3:
0154f000 CR4:
000007d0
Stack:
0000001c 00000000 c11a59f6 f7055c98 00008130 ffffffff ffffffff 00000000
00000003 00000000 00000000 00000000 00000013 f8001000 00000001 000003d0
00000000 00000000 00000000 c14e3f84 f78803c8 00000000 f738c000 000000e9
Call Trace:
[<
c11a59f6>] ? pci_get_subsys+0x33/0x38
[<
c150c4fb>] ? blogic_init_probeinfo_list+0x4b/0x19e
[<
c108d593>] ? __alloc_pages_nodemask+0xe3/0x623
[<
c108d593>] ? __alloc_pages_nodemask+0xe3/0x623
[<
c10fb99e>] ? sysfs_link_sibling+0x61/0x8d
[<
c10b0519>] ? kmem_cache_alloc+0x8b/0xb5
[<
c150cce5>] ? blogic_init+0xa1/0x10e8
[<
c10fc0a8>] ? sysfs_add_one+0x10/0x9d
[<
c10fc18a>] ? sysfs_addrm_finish+0x12/0x85
[<
c10fca37>] ? sysfs_do_create_link_sd+0x9d/0x1b4
[<
c117c272>] ? blk_register_queue+0x69/0xb3
[<
c10fcb68>] ? sysfs_create_link+0x1a/0x2c
[<
c1181a07>] ? add_disk+0x1a1/0x3c7
[<
c138737b>] ? klist_next+0x60/0xc3
[<
c122cc3a>] ? scsi_dh_detach+0x68/0x68
[<
c1213e36>] ? bus_for_each_dev+0x51/0x61
[<
c1000356>] ? do_one_initcall+0x22/0x12c
[<
c10f3688>] ? __proc_create+0x8c/0xba
[<
c150cc44>] ? blogic_setup+0x5f6/0x5f6
[<
c14e94aa>] ? repair_env_string+0xf/0x4d
[<
c14e949b>] ? do_early_param+0x71/0x71
[<
c103efaa>] ? parse_args+0x21f/0x33d
[<
c14e9a54>] ? kernel_init_freeable+0xdf/0x17d
[<
c14e949b>] ? do_early_param+0x71/0x71
[<
c1388b64>] ? kernel_init+0x8/0xc0
[<
c1392222>] ? ret_from_kernel_thread+0x6/0x28
[<
c1392227>] ? ret_from_kernel_thread+0x1b/0x28
[<
c1388b5c>] ? rest_init+0x6c/0x6c
Code: 89 44 24 10 0f b6 44 24 3d 89 44 24 0c c7 44 24 08 00 00 00 00 c7 44 24 04 38 62 46 c1 c7 04 24 02 00 00 00 e8 78 13 d2 ff 31 db <89> 6b 0c b0 20 89 ea ee
c7 44 24 08 04 00 00 00 8d 44 24 4c 89
EIP: [<
c150c137>] blogic_init_mm_probeinfo.isra.17+0x20a/0x583 SS:ESP 0068:
f7055c84
CR2:
000000000000000c
---[ end trace
17f45f5196d40487 ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Cc: <stable@vger.kernel.org> # 3.11.x
Reported-by: Pierre Uszynski <pierre@rahul.net>
Tested-by: Pierre Uszynski <pierre@rahul.net>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Linus Torvalds [Sun, 13 Oct 2013 22:41:28 +0000 (15:41 -0700)]
Linux 3.12-rc5
Linus Torvalds [Sun, 13 Oct 2013 18:41:26 +0000 (11:41 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
"This will fix a deadlock on the ts72xx_wdt driver, fix bitmasks in the
kempld_wdt driver and fix a section mismatch in the sunxi_wdt driver"
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: sunxi: Fix section mismatch
watchdog: kempld_wdt: Fix bit mask definition
watchdog: ts72xx_wdt: locking bug in ioctl
Maxime Ripard [Sat, 5 Oct 2013 14:20:17 +0000 (16:20 +0200)]
watchdog: sunxi: Fix section mismatch
This driver has a section mismatch, for probe and remove functions,
leading to the following warning during the compilation.
WARNING: drivers/watchdog/built-in.o(.data+0x24): Section mismatch in
reference from the variable sunxi_wdt_driver to the function
.init.text:sunxi_wdt_probe()
The variable sunxi_wdt_driver references
the function __init sunxi_wdt_probe()
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Jingoo Han [Mon, 23 Sep 2013 10:16:57 +0000 (19:16 +0900)]
watchdog: kempld_wdt: Fix bit mask definition
STAGE_CFG bits are defined as [5:4] bits. However, '(((x) & 0x30) << 4)'
handles [9:8] bits. Thus, it should be fixed in order to handle
[5:4] bits.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Dan Carpenter [Fri, 23 Aug 2013 08:40:59 +0000 (11:40 +0300)]
watchdog: ts72xx_wdt: locking bug in ioctl
Calling the WDIOC_GETSTATUS & WDIOC_GETBOOTSTATUS and twice will cause a
interruptible deadlock.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Linus Torvalds [Sun, 13 Oct 2013 16:59:10 +0000 (09:59 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A small batch of fixes this week, mostly OMAP related. Nothing stands
out as particularly controversial.
Also a fix for a 3.12-rc1 timer regression for Exynos platforms,
including the Chromebooks"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: exynos: dts: Update 5250 arch timer node with clock frequency
ARM: OMAP2: RX-51: Add missing max_current to rx51_lp5523_led_config
ARM: mach-omap2: board-generic: fix undefined symbol
ARM: dts: Fix pinctrl mask for omap3
ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree
ARM: OMAP2: gpmc-onenand: fix sync mode setup with DT
Yuvaraj Kumar C D [Wed, 18 Sep 2013 10:11:53 +0000 (15:41 +0530)]
ARM: exynos: dts: Update 5250 arch timer node with clock frequency
Without the "clock-frequency" property in arch timer node, could able
to see the below crash dump.
[<
c0014e28>] (unwind_backtrace+0x0/0xf4) from [<
c0011808>] (show_stack+0x10/0x14)
[<
c0011808>] (show_stack+0x10/0x14) from [<
c036ac1c>] (dump_stack+0x7c/0xb0)
[<
c036ac1c>] (dump_stack+0x7c/0xb0) from [<
c01ab760>] (Ldiv0_64+0x8/0x18)
[<
c01ab760>] (Ldiv0_64+0x8/0x18) from [<
c0062f60>] (clockevents_config.part.2+0x1c/0x74)
[<
c0062f60>] (clockevents_config.part.2+0x1c/0x74) from [<
c0062fd8>] (clockevents_config_and_register+0x20/0x2c)
[<
c0062fd8>] (clockevents_config_and_register+0x20/0x2c) from [<
c02b8e8c>] (arch_timer_setup+0xa8/0x134)
[<
c02b8e8c>] (arch_timer_setup+0xa8/0x134) from [<
c04b47b4>] (arch_timer_init+0x1f4/0x24c)
[<
c04b47b4>] (arch_timer_init+0x1f4/0x24c) from [<
c04b40d8>] (clocksource_of_init+0x34/0x58)
[<
c04b40d8>] (clocksource_of_init+0x34/0x58) from [<
c049ed8c>] (time_init+0x20/0x2c)
[<
c049ed8c>] (time_init+0x20/0x2c) from [<
c049b95c>] (start_kernel+0x1e0/0x39c)
THis is because the Exynos u-boot, for example on the Chromebooks, doesn't set
up the CNTFRQ register as expected by arch_timer. Instead, we have to specify
the frequency in the device tree like this.
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
[olof: Changed subject, added comment, elaborated on commit message]
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Sun, 13 Oct 2013 16:33:32 +0000 (09:33 -0700)]
Merge tag 'fixes-against-v3.12-rc3-take2' of git://git./linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Few fixes for omap3 related hangs and errors that people have
noticed now that people are actually using the device tree
based booting for omap3.
Also one regression fix for timer compile for dra7xx when
omap5 is not selected, and a LED regression fix for n900.
* tag 'fixes-against-v3.12-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2: RX-51: Add missing max_current to rx51_lp5523_led_config
ARM: mach-omap2: board-generic: fix undefined symbol
ARM: dts: Fix pinctrl mask for omap3
ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree
ARM: OMAP2: gpmc-onenand: fix sync mode setup with DT
Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Torvalds [Sun, 13 Oct 2013 16:13:28 +0000 (09:13 -0700)]
Merge branch 'parisc-3.12' of git://git./linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
"This patchset includes a bugfix to prevent a kernel crash when memory
in page zero is accessed by the kernel itself, e.g. via
probe_kernel_read().
Furthermore we now export flush_cache_page() which is needed
(indirectly) by the lustre filesystem. The other patches remove
unused functions and optimizes the page fault handler to only evaluate
variables if needed, which again protects against possible kernel
crashes"
* 'parisc-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: let probe_kernel_read() capture access to page zero
parisc: optimize variable initialization in do_page_fault
parisc: fix interruption handler to respect pagefault_disable()
parisc: mark parisc_terminate() noreturn and cold.
parisc: remove unused syscall_ipi() function.
parisc: kill SMP single function call interrupt
parisc: Export flush_cache_page() (needed by lustre)
Linus Torvalds [Sun, 13 Oct 2013 16:02:03 +0000 (09:02 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul:
"Another week, time to send another fixes request taking time out of
extended weekend for the festivities in this part of the world.
We have two fixes from Sergei for rcar driver and one fixing memory
leak of edma driver by Geyslan"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dma: edma.c: remove edma_desc leakage
rcar-hpbdma: add parameter to set_slave() method
rcar-hpbdma: remove shdma_free_irq() calls
Helge Deller [Wed, 9 Oct 2013 21:47:03 +0000 (23:47 +0200)]
parisc: let probe_kernel_read() capture access to page zero
Signed-off-by: Helge Deller <deller@gmx.de>
John David Anglin [Sat, 5 Oct 2013 14:55:36 +0000 (10:55 -0400)]
parisc: optimize variable initialization in do_page_fault
The attached change defers the initialization of the variables tsk, mm
and flags until they are needed. As a result, the code won't crash if a
kernel probe is done with a corrupt context and the code will be better
optimized.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Helge Deller [Tue, 1 Oct 2013 19:54:46 +0000 (21:54 +0200)]
parisc: fix interruption handler to respect pagefault_disable()
Running an "echo t > /proc/sysrq-trigger" crashes the parisc kernel. The
problem is, that in print_worker_info() we try to read the workqueue info via
the probe_kernel_read() functions which use pagefault_disable() to avoid
crashes like this:
probe_kernel_read(&pwq, &worker->current_pwq, sizeof(pwq));
probe_kernel_read(&wq, &pwq->wq, sizeof(wq));
probe_kernel_read(name, wq->name, sizeof(name) - 1);
The problem here is, that the first probe_kernel_read(&pwq) might return zero
in pwq and as such the following probe_kernel_reads() try to access contents of
the page zero which is read protected and generate a kernel segfault.
With this patch we fix the interruption handler to call parisc_terminate()
directly only if pagefault_disable() was not called (in which case
preempt_count()==0). Otherwise we hand over to the pagefault handler which
will try to look up the faulting address in the fixup tables.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v3.0+
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Helge Deller [Wed, 9 Oct 2013 21:12:46 +0000 (23:12 +0200)]
parisc: mark parisc_terminate() noreturn and cold.
Signed-off-by: Helge Deller <deller@gmx.de>
Helge Deller [Wed, 9 Oct 2013 21:10:14 +0000 (23:10 +0200)]
parisc: remove unused syscall_ipi() function.
Signed-off-by: Helge Deller <deller@gmx.de>
Jiang Liu [Wed, 11 Sep 2013 16:07:18 +0000 (00:07 +0800)]
parisc: kill SMP single function call interrupt
Commit
9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Geert Uytterhoeven [Thu, 5 Sep 2013 09:33:15 +0000 (11:33 +0200)]
parisc: Export flush_cache_page() (needed by lustre)
ERROR: "flush_cache_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined!
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Linus Torvalds [Mon, 30 Sep 2013 15:35:10 +0000 (08:35 -0700)]
vfs: allow O_PATH file descriptors for fstatfs()
Olga reported that file descriptors opened with O_PATH do not work with
fstatfs(), found during further development of ksh93's thread support.
There is no reason to not allow O_PATH file descriptors here (fstatfs is
very much a path operation), so use "fdget_raw()". See commit
55815f70147d ("vfs: make O_PATH file descriptors usable for 'fstat()'")
for a very similar issue reported for fstat() by the same team.
Reported-and-tested-by: ольга крыжановская <olga.kryzhanovska@gmail.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org # O_PATH introduced in 3.0+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 12 Oct 2013 19:55:15 +0000 (12:55 -0700)]
Merge tag 'ext4_for_linus_stable' of git://git./linux/kernel/git/tytso/ext4
Pull ext4 bugfixes from Ted Ts'o:
"A bug fix and performance regression fix for ext4"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix memory leak in xattr
ext4: fix performance regression in writeback of random writes
Linus Torvalds [Sat, 12 Oct 2013 19:54:24 +0000 (12:54 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"We've got more bug fixes in my for-linus branch:
One of these fixes another corner of the compression oops from last
time. Miao nailed down some problems with concurrent snapshot
deletion and drive balancing.
I kept out one of his patches for more testing, but these are all
stable"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix oops caused by the space balance and dead roots
Btrfs: insert orphan roots into fs radix tree
Btrfs: limit delalloc pages outside of find_delalloc_range
Btrfs: use right root when checking for hash collision
Linus Torvalds [Sat, 12 Oct 2013 18:53:43 +0000 (11:53 -0700)]
Merge tag 'sound-3.12' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"All stable fixes except for a trivial headset mic fixup: the removal
of bogus frame checks in snd-usb-usx2y driver that have regressed in
the recent kernel versions, the HD-audio HDMI channel map fix, and a
few HD-audio device-specific fixes"
* tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Sony VAIO Pro 13 (haswell) now has a working headset jack
ALSA: hda - Add a headset mic model for ALC269 and friends
ALSA: hda - Fix microphone for Sony VAIO Pro 13 (Haswell model)
ALSA: hda - Add fixup for ASUS N56VZ
ALSA: hda - hdmi: Fix channel map switch not taking effect
ALSA: hda - Fix mono speakers and headset mic on Dell Vostro 5470
ALSA: snd-usb-usx2y: remove bogus frame checks
Linus Torvalds [Sat, 12 Oct 2013 18:52:40 +0000 (11:52 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"We had various reports of problems with deferred probing in the I2C
subsystem, so this pull requst is a little bigger than usual.
Most issues should be addressed now so devices will be found
correctly. A few ususal driver bugfixes are in here, too"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i2c-mux-pinctrl: use deferred probe when adapter not found
i2c: i2c-arb-gpio-challenge: use deferred probe when adapter not found
i2c: i2c-mux-gpio: use deferred probing
i2c: i2c-mux-gpio: don't ignore of_get_named_gpio errors
i2c: omap: Clear ARDY bit twice
i2c: Not all adapters have a parent
i2c: i2c-stu300: replace platform_driver_probe to support deferred probing
i2c: i2c-mxs: replace platform_driver_probe to support deferred probing
i2c: i2c-imx: replace platform_driver_probe to support deferred probing
i2c: i2c-designware-platdrv: replace platform_driver_probe to support deferred probing
Dave Jones [Fri, 11 Oct 2013 00:05:35 +0000 (20:05 -0400)]
ext4: fix memory leak in xattr
If we take the 2nd retry path in ext4_expand_extra_isize_ea, we
potentionally return from the function without having freed these
allocations. If we don't do the return, we over-write the previous
allocation pointers, so we leak either way.
Spotted with Coverity.
[ Fixed by tytso to set is and bs to NULL after freeing these
pointers, in case in the retry loop we later end up triggering an
error causing a jump to cleanup, at which point we could have a double
free bug. -- Ted ]
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Cc: stable@vger.kernel.org
Linus Torvalds [Sat, 12 Oct 2013 18:06:18 +0000 (11:06 -0700)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull gcc "asm goto" miscompilation workaround from Ingo Molnar:
"This is the fix for the GCC miscompilation discussed in the following
lkml thread:
[x86] BUG: unable to handle kernel paging request at
00740060
The bug in GCC has been fixed by Jakub and the fix will be part of the
GCC 4.8.2 release expected to be released next week - so the quirk's
version test checks for <= 4.8.1.
The quirk is only added to compiler-gcc4.h and not to the higher level
compiler.h because all asm goto uses are behind a feature check"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
compiler/gcc4: Add quirk for 'asm goto' miscompilation bug
Linus Torvalds [Sat, 12 Oct 2013 17:36:03 +0000 (10:36 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"A build fix and a reboot quirk"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/reboot: Add reboot quirk for Dell Latitude E5410
x86, build, pci: Fix PCI_MSI build on !SMP
Linus Torvalds [Sat, 12 Oct 2013 17:34:14 +0000 (10:34 -0700)]
Merge tag 'arc-fixes-for-3.12-part3' of git://git./linux/kernel/git/vgupta/arc
Pull ARC fix from Vineet Gupta:
"Fix for broken gdb 'jump'"
* tag 'arc-fixes-for-3.12-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: Ignore ptrace SETREGSET request for synthetic register "stop_pc"
Vineet Gupta [Thu, 10 Oct 2013 14:03:57 +0000 (19:33 +0530)]
ARC: Ignore ptrace SETREGSET request for synthetic register "stop_pc"
ARCompact TRAP_S insn used for breakpoints, commits before exception is
taken (updating architectural PC). So ptregs->ret contains next-PC and
not the breakpoint PC itself. This is different from other restartable
exceptions such as TLB Miss where ptregs->ret has exact faulting PC.
gdb needs to know exact-PC hence ARC ptrace GETREGSET provides for
@stop_pc which returns ptregs->ret vs. EFA depending on the
situation.
However, writing stop_pc (SETREGSET request), which updates ptregs->ret
doesn't makes sense stop_pc doesn't always correspond to that reg as
described above.
This was not an issue so far since user_regs->ret / user_regs->stop_pc
had same value and both writing to ptregs->ret was OK, needless, but NOT
broken, hence not observed.
With gdb "jump", they diverge, and user_regs->ret updating ptregs is
overwritten immediately with stop_pc, which this patch fixes.
Reported-by: Anton Kolesov <akolesov@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Linus Torvalds [Fri, 11 Oct 2013 18:24:58 +0000 (11:24 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus
Pull MIPS fix from Ralf Baechle:
"Just one fix. The stack protector was loading the value of the canary
instead of its address"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: stack protector: Fix per-task canary switch
Linus Torvalds [Fri, 11 Oct 2013 17:41:21 +0000 (10:41 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"All over the map..
- nouveau:
disable MSI, needs more work, will try again next merge window
- radeon:
audio + uvd regression fixes, dpm fixes, reset fixes
- i915:
the dpms fix might fix your haswell
And one pain in the ass revert, so we have VGA arbitration that when
implemented 4-5 years ago really hoped that GPUs could remove
themselves from arbitration completely once they had a kernel driver.
It seems Intel hw designers decided that was too nice a facility to
allow us to have so they removed it when they went on-die (so since
Ironlake at least). Now Alex Williamson added support for VGA
arbitration for newer GPUs however this now exposes itself to
userspace as requireing arbitration of GPU VGA regions and the X
server gets involved and disables things that it can't handle when VGA
access is possibly required around every operation.
So in order to not break userspace we just reverted things back to the
old known broken status so maybe we can try and design out way out.
Ville also had a patch to use stop machine for the two times Intel
needs to access VGA space, that might be acceptable with some rework,
but for now myself and Daniel agreed to just go back"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (23 commits)
Revert "i915: Update VGA arbiter support for newer devices"
Revert "drm/i915: Delay disabling of VGA memory until vgacon->fbcon handoff is done"
drm/radeon: re-enable sw ACR support on pre-DCE4
drm/radeon/dpm: disable bapm on TN asics
drm/radeon: improve soft reset on CIK
drm/radeon: improve soft reset on SI
drm/radeon/dpm: off by one in si_set_mc_special_registers()
drm/radeon/dpm/btc: off by one in btc_set_mc_special_registers()
drm/radeon: forever loop on error in radeon_do_test_moves()
drm/radeon: fix hw contexts for SUMO2 asics
drm/radeon: fix typo in CP DMA register headers
drm/radeon/dpm: disable multiple UVD states
drm/radeon: use hw generated CTS/N values for audio
drm/radeon: fix N/CTS clock matching for audio
drm/radeon: use 64-bit math to calculate CTS values for audio (v2)
drm/edid: catch kmalloc failure in drm_edid_to_speaker_allocation
Revert "drm/fb-helper: don't sleep for screen unblank when an oops is in progress"
drm/gma500: fix things after get/put page helpers
drm/nouveau/mc: disable msi support by default, it's busted in tons of places
drm/i915: Only apply DPMS to the encoder if enabled
...
David Henningsson [Fri, 11 Oct 2013 11:46:04 +0000 (13:46 +0200)]
ALSA: hda - Sony VAIO Pro 13 (haswell) now has a working headset jack
Just got the positive confirmation from a tester:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1227093/comments/28
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
David Henningsson [Fri, 11 Oct 2013 08:18:46 +0000 (10:18 +0200)]
ALSA: hda - Add a headset mic model for ALC269 and friends
Using the headset mic model will cause the headset mic to be labeled
"headset mic" instead of just "mic".
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
David Henningsson [Fri, 11 Oct 2013 08:18:45 +0000 (10:18 +0200)]
ALSA: hda - Fix microphone for Sony VAIO Pro 13 (Haswell model)
The external mic showed up with a precense detect of "always present",
essentially disabling the internal mic. Therefore turn off presence
detection for this pin.
Note: The external mic seems not yet working, but an internal mic is
certainly better than no mic at all.
Cc: stable@vger.kernel.org
BugLink: https://bugs.launchpad.net/bugs/1227093
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Ingo Molnar [Thu, 10 Oct 2013 08:16:30 +0000 (10:16 +0200)]
compiler/gcc4: Add quirk for 'asm goto' miscompilation bug
Fengguang Wu, Oleg Nesterov and Peter Zijlstra tracked down
a kernel crash to a GCC bug: GCC miscompiles certain 'asm goto'
constructs, as outlined here:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
Implement a workaround suggested by Jakub Jelinek.
Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Suggested-by: Jakub Jelinek <jakub@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Dave Airlie [Fri, 11 Oct 2013 05:12:04 +0000 (15:12 +1000)]
Revert "i915: Update VGA arbiter support for newer devices"
This reverts commit
81b5c7bc8de3e6f63419139c2fc91bf81dea8a7d.
Adding drm/i915 into the vga arbiter chain means that X (in a piece of
well-meant paranoia) will do a get/put on the vga decoding around
_every_ accel call down into the ddx. Which results in some nice
performance disasters [1]. This really breaks userspace, by disabling
DRI for everyone, and stops OpenGL from working, this isn't limited
to just the i915 but both the integrated and discrete GPUs on
multi-gpu systems, in other words this causes untold worlds of pain,
Ville tried to come up with a Great Hack to fiddle the required VGA
I/O ops behind everyone's back using stop_machine, but that didn't
really work out [2]. Given that we're fairly late in the -rc stage for
such games let's just revert this all.
One thing we might want to keep is to delay the disabling of the vga
decoding until the fbdev emulation and the fbcon screen is set up. If
we kill vga mem decoding beforehand fbcon can end up with a white
square in the top-left corner it tried to save from the vga memory for
a seamless transition. And we have bug reports on older platforms
which seem to match these symptoms.
But again that's something to play around with in -next.
References: [1] http://lists.x.org/archives/xorg-devel/2013-September/037763.html
References: [2] http://www.spinics.net/lists/intel-gfx/msg34062.html
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 11 Oct 2013 05:11:52 +0000 (15:11 +1000)]
Revert "drm/i915: Delay disabling of VGA memory until vgacon->fbcon handoff is done"
This reverts commit
6e1b4fdad5157bb9e88777d525704aba24389bee.
This is part of a revert due to a userspace breakage, better explained in the revert of
1a1a4cbf4906a13c0c377f708df5d94168e7b582.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 11 Oct 2013 03:07:15 +0000 (13:07 +1000)]
Merge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Regression fixes for audio and UVD, several hang fixes,
some DPM fixes.
* 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: re-enable sw ACR support on pre-DCE4
drm/radeon/dpm: disable bapm on TN asics
drm/radeon: improve soft reset on CIK
drm/radeon: improve soft reset on SI
drm/radeon/dpm: off by one in si_set_mc_special_registers()
drm/radeon/dpm/btc: off by one in btc_set_mc_special_registers()
drm/radeon: forever loop on error in radeon_do_test_moves()
drm/radeon: fix hw contexts for SUMO2 asics
drm/radeon: fix typo in CP DMA register headers
drm/radeon/dpm: disable multiple UVD states
drm/radeon: use hw generated CTS/N values for audio
drm/radeon: fix N/CTS clock matching for audio
drm/radeon: use 64-bit math to calculate CTS values for audio (v2)
drm/edid: catch kmalloc failure in drm_edid_to_speaker_allocation
Geyslan G. Bem [Mon, 7 Oct 2013 22:19:58 +0000 (19:19 -0300)]
dma: edma.c: remove edma_desc leakage
Free memory allocated to edma_desc when failing to allocate slot.
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Sergei Shtylyov [Wed, 25 Sep 2013 22:31:37 +0000 (02:31 +0400)]
rcar-hpbdma: add parameter to set_slave() method
Commit
4981c4dc194efb18f0e9a02f1b43e926f2f0d2bb (DMA: shdma: switch DT mode to
use configuration data from a match table) added a new parameter to set_slave()
method but unfortunately got merged later than commit
c4f6c41ba790bbbfcebb4c47a
(dma: add driver for R-Car HPB-DMAC), so that the HPB-DMAC driver retained the
old prototype which caused this warning:
drivers/dma/sh/rcar-hpbdma.c:485: warning: initialization from incompatible
pointer type
The newly added parameter is used to override DMA slave address from 'struct
hpb_dmae_slave_config', so we have to add the 'slave_addr' field to 'struct
hpb_dmae_chan', conditionally assign it in set_slave() method, and return in
slave_addr() method.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Sergei Shtylyov [Wed, 25 Sep 2013 22:28:37 +0000 (02:28 +0400)]
rcar-hpbdma: remove shdma_free_irq() calls
Commit
c1c63a14f4f2419d093acd7164eccdff315baa86 (DMA: shdma: switch to managed
resource allocation) got rid of shdma_free_irq() but unfortunately got merged
later than commit
c4f6c41ba790bbbfcebb4c47a709ac8ff1fe1af9 (dma: add driver for
R-Car HPB-DMAC), so that the HPB-DMAC driver retained the calls and got broken:
drivers/dma/sh/rcar-hpbdma.c: In function `hpb_dmae_alloc_chan_resources':
drivers/dma/sh/rcar-hpbdma.c:435: error: implicit declaration of function
`shdma_free_irq'
Fix this compilation error by removing the remaining shdma_free_irq() calls.
Reported-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Miao Xie [Wed, 25 Sep 2013 13:47:44 +0000 (21:47 +0800)]
Btrfs: fix oops caused by the space balance and dead roots
When doing space balance and subvolume destroy at the same time, we met
the following oops:
kernel BUG at fs/btrfs/relocation.c:2247!
RIP: 0010: [<
ffffffffa04cec16>] prepare_to_merge+0x154/0x1f0 [btrfs]
Call Trace:
[<
ffffffffa04b5ab7>] relocate_block_group+0x466/0x4e6 [btrfs]
[<
ffffffffa04b5c7a>] btrfs_relocate_block_group+0x143/0x275 [btrfs]
[<
ffffffffa0495c56>] btrfs_relocate_chunk.isra.27+0x5c/0x5a2 [btrfs]
[<
ffffffffa0459871>] ? btrfs_item_key_to_cpu+0x15/0x31 [btrfs]
[<
ffffffffa048b46a>] ? btrfs_get_token_64+0x7e/0xcd [btrfs]
[<
ffffffffa04a3467>] ? btrfs_tree_read_unlock_blocking+0xb2/0xb7 [btrfs]
[<
ffffffffa049907d>] btrfs_balance+0x9c7/0xb6f [btrfs]
[<
ffffffffa049ef84>] btrfs_ioctl_balance+0x234/0x2ac [btrfs]
[<
ffffffffa04a1e8e>] btrfs_ioctl+0xd87/0x1ef9 [btrfs]
[<
ffffffff81122f53>] ? path_openat+0x234/0x4db
[<
ffffffff813c3b78>] ? __do_page_fault+0x31d/0x391
[<
ffffffff810f8ab6>] ? vma_link+0x74/0x94
[<
ffffffff811250f5>] vfs_ioctl+0x1d/0x39
[<
ffffffff811258c8>] do_vfs_ioctl+0x32d/0x3e2
[<
ffffffff811259d4>] SyS_ioctl+0x57/0x83
[<
ffffffff813c3bfa>] ? do_page_fault+0xe/0x10
[<
ffffffff813c73c2>] system_call_fastpath+0x16/0x1b
It is because we returned the error number if the reference of the root was 0
when doing space relocation. It was not right here, because though the root
was dead(refs == 0), but the space it held still need be relocated, or we
could not remove the block group. So in this case, we should return the root
no matter it is dead or not.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Miao Xie [Wed, 25 Sep 2013 13:47:43 +0000 (21:47 +0800)]
Btrfs: insert orphan roots into fs radix tree
Now we don't drop all the deleted snapshots/subvolumes before the space
balance. It means we have to relocate the space which is held by the dead
snapshots/subvolumes. So we must into them into fs radix tree, or we would
forget to commit the change of them when doing transaction commit, and it
would corrupt the metadata.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Tue, 8 Oct 2013 02:11:09 +0000 (22:11 -0400)]
Btrfs: limit delalloc pages outside of find_delalloc_range
Liu fixed part of this problem and unfortunately I steered him in slightly the
wrong direction and so didn't completely fix the problem. The problem is we
limit the size of the delalloc range we are looking for to max bytes and then we
try to lock that range. If we fail to lock the pages in that range we will
shrink the max bytes to a single page and re loop. However if our first page is
inside of the delalloc range then we will end up limiting the end of the range
to a period before our first page. This is illustrated below
[0 -------- delalloc range --------- 256mb]
[page]
So find_delalloc_range will return with delalloc_start as 0 and end as 128mb,
and then we will notice that delalloc_start < *start and adjust it up, but not
adjust delalloc_end up, so things go sideways. To fix this we need to not limit
the max bytes in find_delalloc_range, but in find_lock_delalloc_range and that
way we don't end up with this confusion. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Wed, 9 Oct 2013 16:24:04 +0000 (12:24 -0400)]
Btrfs: use right root when checking for hash collision
btrfs_rename was using the root of the old dir instead of the root of the new
dir when checking for a hash collision, so if you tried to move a file into a
subvol it would freak out because it would see the file you are trying to move
in its current root. This fixes the bug where this would fail
btrfs subvol create test1
btrfs subvol create test2
mv test1 test2.
Thanks to Chris Murphy for catching this,
Cc: stable@vger.kernel.org
Reported-by: Chris Murphy <lists@colorremedies.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Kent Overstreet [Fri, 11 Oct 2013 00:31:15 +0000 (17:31 -0700)]
bcache: Fix a null ptr deref regression
Commit
c0f04d88e46d ("bcache: Fix flushes in writeback mode") was fixing
a reported data corruption bug, but it seems some last minute
refactoring or rebasing introduced a null pointer deref.
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.10
Reported-by: Gabriel de Perthuis <g2p.code@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 11 Oct 2013 01:16:02 +0000 (18:16 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fix from Guenter Roeck:
"Fix root cause of crash/error seen in applesmc driver"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (applesmc) Always read until end of data
Linus Torvalds [Fri, 11 Oct 2013 01:15:23 +0000 (18:15 -0700)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild
Pull kbuild fix from Michal Marek:
"Here is an ARM Makefile fix that you even acked. After nobody wanted
to take it, it ended up in the kbuild tree"
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
arm, kbuild: make "make install" not depend on vmlinux
Linus Torvalds [Thu, 10 Oct 2013 20:57:10 +0000 (13:57 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fix from Wim Van Sebroeck:
"Make sure that the hpwdt driver will not load auxilary iLO devices"
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: hpwdt: Patch to ignore auxilary iLO devices
Fengguang Wu [Wed, 9 Oct 2013 01:26:21 +0000 (09:26 +0800)]
kobject: show debug info on delayed kobject release
Useful for locating buggy drivers on kernel oops.
It may add dozens of new lines to boot dmesg. DEBUG_KOBJECT_RELEASE is
hopefully only enabled in debug kernels (like maybe the Fedora rawhide
one, or at developers), so being a bit more verbose is likely ok.
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mingarelli, Thomas [Fri, 9 Aug 2013 16:31:09 +0000 (16:31 +0000)]
watchdog: hpwdt: Patch to ignore auxilary iLO devices
This patch is to prevent hpwdt from loading on any auxilary iLO devices defined
after the initial (or main) iLO device. All auxilary iLO devices will have a
subsystem device ID set to 0x1979 in order for hpwdt to differentiate between
the two types.
Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Tested-by: Lisa Mitchell <lisa.mitchell@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Linus Torvalds [Thu, 10 Oct 2013 19:31:43 +0000 (12:31 -0700)]
Merge tag 'random_for_linus' of git://git./linux/kernel/git/tytso/random
Pull /dev/random changes from Ted Ts'o:
"These patches are designed to enable improvements to /dev/random for
non-x86 platforms, in particular MIPS and ARM"
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: allow architectures to optionally define random_get_entropy()
random: run random_int_secret_init() run after all late_initcalls
Linus Torvalds [Thu, 10 Oct 2013 18:33:48 +0000 (11:33 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Fixes for 3.12-rc5: two old PPC bugs and one new (3.12-rc2) x86 bug"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: ppc: booke: check range page invalidation progress on page setup
KVM: PPC: Book3S HV: Fix typo in saving DSCR
KVM: nVMX: fix shadow on EPT
Linus Torvalds [Thu, 10 Oct 2013 18:33:02 +0000 (11:33 -0700)]
Merge tag 'spi-v3.12-rc4' of git://git./linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"This is all driver updates, mostly fixes for error handling paths
except for the s3c64xx and hspi fixes for trying to use runtime PM
before it is enabled and the pxa2xx fix for interactions between power
management and interrupt handling"
* tag 'spi-v3.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: atmel: Fix incorrect error path
spi/hspi: fixup Runtime PM enable timing
spi/s3c64xx: Ensure runtime PM is enabled prior to registration
spi/clps711x: drop clk_put for devm_clk_get in spi_clps711x_probe()
spi: fix return value check in dspi_probe()
spi: mpc512x: fix error return code in mpc512x_psc_spi_do_probe()
spi: clps711x: Don't call kfree() after spi_master_put/spi_unregister_master
spi/pxa2xx: check status register as well to determine if the device is off
Theodore Ts'o [Sat, 21 Sep 2013 17:58:22 +0000 (13:58 -0400)]
random: allow architectures to optionally define random_get_entropy()
Allow architectures which have a disabled get_cycles() function to
provide a random_get_entropy() function which provides a fine-grained,
rapidly changing counter that can be used by the /dev/random driver.
For example, an architecture might have a rapidly changing register
used to control random TLB cache eviction, or DRAM refresh that
doesn't meet the requirements of get_cycles(), but which is good
enough for the needs of the random driver.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
Linus Torvalds [Thu, 10 Oct 2013 18:30:33 +0000 (11:30 -0700)]
Merge tag 'for-linus-
20131008' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Brian Norris:
- fix a small memory leak in some new ONFI code
- account for additional odd variations of Micron SPI flash
Acked by David Woodhouse.
* tag 'for-linus-
20131008' of git://git.infradead.org/linux-mtd:
mtd: m25p80: Fix 4 byte addressing mode for Micron devices.
mtd: nand: fix memory leak in ONFI extended parameter page
Alex Deucher [Thu, 10 Oct 2013 15:47:01 +0000 (11:47 -0400)]
drm/radeon: re-enable sw ACR support on pre-DCE4
HW ACR support may have issues on some older chips, so
use SW ACR for now until we've tested further.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: Rafał Miłecki <zajec5@gmail.com>
Bharat Bhushan [Wed, 7 Aug 2013 10:03:46 +0000 (15:33 +0530)]
kvm: ppc: booke: check range page invalidation progress on page setup
When the MM code is invalidating a range of pages, it calls the KVM
kvm_mmu_notifier_invalidate_range_start() notifier function, which calls
kvm_unmap_hva_range(), which arranges to flush all the TLBs for guest pages.
However, the Linux PTEs for the range being flushed are still valid at
that point. We are not supposed to establish any new references to pages
in the range until the ...range_end() notifier gets called.
The PPC-specific KVM code doesn't get any explicit notification of that;
instead, we are supposed to use mmu_notifier_retry() to test whether we
are or have been inside a range flush notifier pair while we have been
referencing a page.
This patch calls the mmu_notifier_retry() while mapping the guest
page to ensure we are not referencing a page when in range invalidation.
This call is inside a region locked with kvm->mmu_lock, which is the
same lock that is called by the KVM MMU notifier functions, thus
ensuring that no new notification can proceed while we are in the
locked region.
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Alexander Graf <agraf@suse.de>
[Backported to 3.12 - Paolo]
Reviewed-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paul Mackerras [Fri, 20 Sep 2013 23:53:28 +0000 (09:53 +1000)]
KVM: PPC: Book3S HV: Fix typo in saving DSCR
This fixes a typo in the code that saves the guest DSCR (Data Stream
Control Register) into the kvm_vcpu_arch struct on guest exit. The
effect of the typo was that the DSCR value was saved in the wrong place,
so changes to the DSCR by the guest didn't persist across guest exit
and entry, and some host kernel memory got corrupted.
Cc: stable@vger.kernel.org [v3.1+]
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Gleb Natapov [Wed, 9 Oct 2013 16:13:19 +0000 (19:13 +0300)]
KVM: nVMX: fix shadow on EPT
72f857950f6f19 broke shadow on EPT. This patch reverts it and fixes PAE
on nEPT (which reverted commit fixed) in other way.
Shadow on EPT is now broken because while L1 builds shadow page table
for L2 (which is PAE while L2 is in real mode) it never loads L2's
GUEST_PDPTR[0-3]. They do not need to be loaded because without nested
virtualization HW does this during guest entry if EPT is disabled,
but in our case L0 emulates L2's vmentry while EPT is enables, so we
cannot rely on vmcs12->guest_pdptr[0-3] to contain up-to-date values
and need to re-read PDPTEs from L2 memory. This is what kvm_set_cr3()
is doing, but by clearing cache bits during L2 vmentry we drop values
that kvm_set_cr3() read from memory.
So why the same code does not work for PAE on nEPT? kvm_set_cr3()
reads pdptes into vcpu->arch.walk_mmu->pdptrs[]. walk_mmu points to
vcpu->arch.nested_mmu while nested guest is running, but ept_load_pdptrs()
uses vcpu->arch.mmu which contain incorrect values. Fix that by using
walk_mmu in ept_(load|save)_pdptrs.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Wolfram Sang [Thu, 10 Oct 2013 08:19:13 +0000 (10:19 +0200)]
i2c: i2c-mux-pinctrl: use deferred probe when adapter not found
If it is not there yet, it might appear later.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Wolfram Sang [Thu, 10 Oct 2013 08:19:13 +0000 (10:19 +0200)]
i2c: i2c-arb-gpio-challenge: use deferred probe when adapter not found
If it is not there yet, it might appear later.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Ionut Nicu [Wed, 9 Oct 2013 09:50:45 +0000 (11:50 +0200)]
i2c: i2c-mux-gpio: use deferred probing
If the i2c-parent bus driver is not loaded, returning
-ENODEV will force people to unload and then reload the
module again to get it working.
Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Ionut Nicu [Tue, 8 Oct 2013 13:51:53 +0000 (15:51 +0200)]
i2c: i2c-mux-gpio: don't ignore of_get_named_gpio errors
of_get_named_gpio could return -E_PROBE_DEFER or another
error code. This error should be passed further instead
of being ignored.
Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Taras Kondratiuk [Mon, 7 Oct 2013 10:41:59 +0000 (13:41 +0300)]
i2c: omap: Clear ARDY bit twice
Initially commit
cb527ede1bf6ff2008a025606f25344b8ed7b4ac
"i2c-omap: Double clear of ARDY status in IRQ handler"
added a workaround for undocumented errata ProDB0017052.
But then commit
1d7afc95946487945cc7f5019b41255b72224b70
"i2c: omap: ack IRQ in parts" refactored code and missed
one of ARDY clearings. So current code violates errata.
It causes often i2c bus timeouts on my Pandaboard.
This patch adds a second clearing in place.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
Jean Delvare [Thu, 10 Oct 2013 06:04:06 +0000 (08:04 +0200)]
i2c: Not all adapters have a parent
The code in acpi_i2c_register_devices() assumes that all i2c adapters
have a parent. This is not necessarily the case, for example the
i2c-stub driver instantiate a virtual i2c adapter without a parent.
Check for this to avoid a NULL pointer deference.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Wolfram Sang [Tue, 8 Oct 2013 20:35:36 +0000 (22:35 +0200)]
i2c: i2c-stu300: replace platform_driver_probe to support deferred probing
Subsystems like pinctrl and gpio rightfully make use of deferred probing at
core level. Now, deferred drivers won't be retried if they don't have a .probe
function specified in the driver struct. Fix this driver to have that, so the
devices it supports won't get lost in a deferred probe.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Wolfram Sang [Tue, 8 Oct 2013 20:35:35 +0000 (22:35 +0200)]
i2c: i2c-mxs: replace platform_driver_probe to support deferred probing
Subsystems like pinctrl and gpio rightfully make use of deferred probing at
core level. Now, deferred drivers won't be retried if they don't have a .probe
function specified in the driver struct. Fix this driver to have that, so the
devices it supports won't get lost in a deferred probe.
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Wolfram Sang [Tue, 8 Oct 2013 20:35:34 +0000 (22:35 +0200)]
i2c: i2c-imx: replace platform_driver_probe to support deferred probing
Subsystems like pinctrl and gpio rightfully make use of deferred probing at
core level. Now, deferred drivers won't be retried if they don't have a .probe
function specified in the driver struct. Fix this driver to have that, so the
devices it supports won't get lost in a deferred probe.
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Wolfram Sang [Tue, 8 Oct 2013 20:35:33 +0000 (22:35 +0200)]
i2c: i2c-designware-platdrv: replace platform_driver_probe to support deferred probing
Subsystems like pinctrl and gpio rightfully make use of deferred probing at
core level. Now, deferred drivers won't be retried if they don't have a .probe
function specified in the driver struct. Fix this driver to have that, so the
devices it supports won't get lost in a deferred probe.
Reported-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Alex Deucher [Tue, 8 Oct 2013 01:25:39 +0000 (21:25 -0400)]
drm/radeon/dpm: disable bapm on TN asics
Causes hangs on certain boards.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=70053
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 2 Oct 2013 18:54:44 +0000 (14:54 -0400)]
drm/radeon: improve soft reset on CIK
Disable CG/PG before resetting.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 2 Oct 2013 18:50:57 +0000 (14:50 -0400)]
drm/radeon: improve soft reset on SI
Disable CG/PG and stop the rlc before resetting.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Dan Carpenter [Sat, 28 Sep 2013 09:35:31 +0000 (12:35 +0300)]
drm/radeon/dpm: off by one in si_set_mc_special_registers()
These checks should be ">=" instead of ">". j is used as an offset into
the table->mc_reg_address[] array and that has
SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE (16) elements.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Dan Carpenter [Fri, 27 Sep 2013 20:18:39 +0000 (23:18 +0300)]
drm/radeon/dpm/btc: off by one in btc_set_mc_special_registers()
It should be ">=" instead of ">" here. The table->mc_reg_address[]
array has SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE (16) elements.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Dan Carpenter [Mon, 1 Jul 2013 16:39:34 +0000 (19:39 +0300)]
drm/radeon: forever loop on error in radeon_do_test_moves()
The error path does this:
for (--i; i >= 0; --i) {
which is a forever loop because "i" is unsigned.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
wojciech kapuscinski [Tue, 1 Oct 2013 23:54:33 +0000 (19:54 -0400)]
drm/radeon: fix hw contexts for SUMO2 asics
They have 4 rather than 8.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=63599
Signed-off-by: wojciech kapuscinski <wojtask9@wp.pl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Alex Deucher [Tue, 1 Oct 2013 20:40:45 +0000 (16:40 -0400)]
drm/radeon: fix typo in CP DMA register headers
Wrong bit offset for SRC endian swapping.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Alex Deucher [Mon, 30 Sep 2013 23:11:24 +0000 (19:11 -0400)]
drm/radeon/dpm: disable multiple UVD states
Always use the regular UVD state for now. This fixes
a performance regression with UVD playback on certain APUs.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 27 Sep 2013 22:22:15 +0000 (18:22 -0400)]
drm/radeon: use hw generated CTS/N values for audio
Use the hw generated values rather than calculating
them in the driver. There may be some older r6xx
asics where this doesn't work correctly. This remains
to be seen.
See bug:
https://bugs.freedesktop.org/show_bug.cgi?id=69675
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 27 Sep 2013 22:19:42 +0000 (18:19 -0400)]
drm/radeon: fix N/CTS clock matching for audio
The drm code that calculates the 1001 clocks rounds up
rather than truncating. This allows the table to match
properly on those modes.
See bug:
https://bugs.freedesktop.org/show_bug.cgi?id=69675
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 27 Sep 2013 22:09:54 +0000 (18:09 -0400)]
drm/radeon: use 64-bit math to calculate CTS values for audio (v2)
Avoid losing precision. See bug:
https://bugs.freedesktop.org/show_bug.cgi?id=69675
v2: fix math as per Anssi's comments.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 27 Sep 2013 22:44:39 +0000 (18:44 -0400)]
drm/edid: catch kmalloc failure in drm_edid_to_speaker_allocation
Return -ENOMEM if the allocation fails.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Dave Airlie [Wed, 9 Oct 2013 21:05:41 +0000 (07:05 +1000)]
Revert "drm/fb-helper: don't sleep for screen unblank when an oops is in progress"
This reverts commit
928c2f0c006bf7f381f58af2b2786d2a858ae311.
This patch double applied, two checks for the price of one.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Henrik Rydberg [Wed, 2 Oct 2013 17:15:03 +0000 (19:15 +0200)]
hwmon: (applesmc) Always read until end of data
The crash reported and investigated in commit 5f4513 turned out to be
caused by a change to the read interface on newer (2012) SMCs.
Tests by Chris show that simply reading the data valid line is enough
for the problem to go away. Additional tests show that the newer SMCs
no longer wait for the number of requested bytes, but start sending
data right away. Apparently the number of bytes to read is no longer
specified as before, but instead found out by reading until end of
data. Failure to read until end of data confuses the state machine,
which eventually causes the crash.
As a remedy, assuming bit0 is the read valid line, make sure there is
nothing more to read before leaving the read function.
Tested to resolve the original problem, and runtested on MBA3,1,
MBP4,1, MBP8,2, MBP10,1, MBP10,2. The patch seems to have no effect on
machines before 2012.
Tested-by: Chris Murphy <chris@cmurf.com>
Cc: stable@vger.kernel.org
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Dave Airlie [Wed, 9 Oct 2013 06:09:25 +0000 (16:09 +1000)]
Merge remote-tracking branch 'nouveau/drm-nouveau-next' into drm-fixes
Disable MSIs for now until we can fix them up
* nouveau/drm-nouveau-next:
drm/nouveau/mc: disable msi support by default, it's busted in tons of places