Russell King [Sun, 2 Jan 2011 15:05:21 +0000 (15:05 +0000)]
ARM: TWD: enable one-shot mode
Allow one shot timer mode to be used with the TWD. This allows
NOHZ mode to be used on SMP systems using the TWD localtimer.
Tested on Versatile Express and U8500.
Tested-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Srinidhi Kasagar [Wed, 22 Dec 2010 12:18:58 +0000 (13:18 +0100)]
ARM: 6539/1: ux500: remove unnecessary barrier from the secondary startup
Signed-off-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 20 Dec 2010 16:58:19 +0000 (16:58 +0000)]
ARM: SMP: ensure frame pointer is reinitialized for soft-CPU hotplug
When we soft-CPU hotplug a CPU, we reset the stack pointer and
jump back to start_secondary(). This allows us to restart as if
the CPU was actually reset.
However, we weren't resetting the frame pointer, which could cause
problems with backtracing. Reset the frame pointer to zero (which
means no parent frame) just like the early assembly code also does.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 20 Dec 2010 14:44:32 +0000 (14:44 +0000)]
ARM: SMP: split out software TLB maintainence broadcasting
smp.c is becoming too large, so split out the TLB maintainence
broadcasting into a separate smp_tlb.c file.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 20 Dec 2010 14:28:02 +0000 (14:28 +0000)]
ARM: localtimer: clean up local timer on hot unplug
When a CPU is hot unplugged, the generic tick code cleans up the
clock event device, but fails to call down to the device's set_mode
function to actually shut the device down.
To work around this, we've historically had a local_timer_stop()
callback out of the hotplug code. However, this adds needless
complexity when we have the clock event device itself available.
Explicitly call the clock event device's set_mode function with
CLOCK_EVT_MODE_UNUSED, so that the hardware can be cleanly shutdown
without any special external callbacks. When/if the generic code
is fixed, percpu_timer_stop() can be killed off.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 19 Dec 2010 11:36:33 +0000 (11:36 +0000)]
ARM: CPU hotplug: fix hard-coded control register constants
Use the definition we've provided in asm/system.h rather than
numeric constants.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 19 Dec 2010 11:33:12 +0000 (11:33 +0000)]
ARM: CPU hotplug: add Versatile Express hotplug CPU support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 19 Dec 2010 11:30:43 +0000 (11:30 +0000)]
ARM: CPU hotplug: fix reporting of spurious wakeups
The original scheme for reporting spurious wakeups was broken - it
tried to use printk() from a context which wasn't coherent with the
other CPUs, which risks corrupting the printk() data.
Fix this by noting the number spurious wakeups, and only report them
when we are properly woken - when we will be coherent with the rest
of the system.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sat, 18 Dec 2010 12:34:39 +0000 (12:34 +0000)]
ARM: smp: improve CPU bringup failure diagnostics
We used to print a bland error message which gave no clue as to the
failure when we failed to bring up a secondary CPU. Resolve this by
separating the two failure cases.
If boot_secondary() fails, we print a message indicating the returned
error code from boot_secondary():
"CPU%u: failed to boot: %d\n", cpu, ret.
However, if boot_secondary() succeeded, but the CPU did not appear to
mark itself online within the timeout, indicate that it failed to come
online:
"CPU%u: failed to come online\n", cpu
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sat, 18 Dec 2010 10:59:49 +0000 (10:59 +0000)]
ARM: VFP: re-initialize VFP coprocessor access enables on CPU hotplug
We can not guarantee that VFP will be enabled when CPU hotplug brings
a CPU back online from a reset state. Add a hotplug CPU notifier to
ensure that the VFP coprocessor access is enabled whenever a CPU comes
back online.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sat, 18 Dec 2010 10:53:12 +0000 (10:53 +0000)]
ARM: Fix subtle race in CPU pen_release hotplug code
There is a subtle race in the CPU hotplug code, where a CPU which has
been offlined can online itself before being requested, which results
in things going astray on the next online/offline cycle.
What happens in the normal online/offline/online cycle is:
CPU0 CPU3
requests boot of CPU3
pen_release = 3
flush cache line
checks pen_release, reads 3
starts boot
pen_release = -1
... requests CPU3 offline ...
... dies ...
checks pen_release, reads -1
requests boot of CPU3
pen_release = 3
flush cache line
checks pen_release, reads 3
starts boot
pen_release = -1
However, as the write of -1 of pen_release is not fully flushed back to
memory, and the checking of pen_release is done with caches disabled,
this allows CPU3 the opportunity to read the old value of pen_release:
CPU0 CPU3
requests boot of CPU3
pen_release = 3
flush cache line
checks pen_release, reads 3
starts boot
pen_release = -1
... requests CPU3 offline ...
... dies ...
checks pen_release, reads 3
starts boot
pen_release = -1
requests boot of CPU3
pen_release = 3
flush cache line
Fix this by grouping the write of pen_release along with its cache line
flushing code to ensure that any update to pen_release is always pushed
out to physical memory.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dave Martin [Wed, 1 Dec 2010 14:39:23 +0000 (15:39 +0100)]
ARM: 6516/1: Allow SMP_ON_UP to work with Thumb-2 kernels.
* __fixup_smp_on_up has been modified with support for the
THUMB2_KERNEL case. For THUMB2_KERNEL only, fixups are split
into halfwords in case of misalignment, since we can't rely on
unaligned accesses working before turning the MMU on.
No attempt is made to optimise the aligned case, since the
number of fixups is typically small, and it seems best to keep
the code as simple as possible.
* Add a rotate in the fixup_smp code in order to support
CPU_BIG_ENDIAN, as suggested by Nicolas Pitre.
* Add an assembly-time sanity-check to ALT_UP() to ensure that
the content really is the right size (4 bytes).
(No check is done for ALT_SMP(). Possibly, this could be fixed
by splitting the two uses ot ALT_SMP() (ALT_SMP...SMP_UP versus
ALT_SMP...SMP_UP_B) into two macros. In the first case,
ALT_SMP needs to expand to >= 4 bytes, not == 4.)
* smp_mpidr.h (which implements ALT_SMP()/ALT_UP() manually due
to macro limitations) has not been modified: the affected
instruction (mov) has no 16-bit encoding, so the correct
instruction size is satisfied in this case.
* A "mode" parameter has been added to smp_dmb:
smp_dmb arm @ assumes 4-byte instructions (for ARM code, e.g. kuser)
smp_dmb @ uses W() to ensure 4-byte instructions for ALT_SMP()
This avoids assembly failures due to use of W() inside smp_dmb,
when assembling pure-ARM code in the vectors page.
There might be a better way to achieve this.
* Kconfig: make SMP_ON_UP depend on
(!THUMB2_KERNEL || !BIG_ENDIAN) i.e., THUMB2_KERNEL is now
supported, but only if !BIG_ENDIAN (The fixup code for Thumb-2
currently assumes little-endian order.)
Tested using a single generic realview kernel on:
ARM RealView PB-A8 (CONFIG_THUMB2_KERNEL={n,y})
ARM RealView PBX-A9 (SMP)
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 30 Nov 2010 18:24:57 +0000 (18:24 +0000)]
ARM: SMP: remove smp_mpidr.h
With "ARM: CPU hotplug: remove bug checks in platform_cpu_die()", we
now do not use hard_smp_processor_id(), we no longer need to read the
hardware processor ID. Remove the include providing this function.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 30 Nov 2010 12:21:30 +0000 (12:21 +0000)]
ARM: CPU hotplug: ensure correct ordering of unplug
Don't call idle_task_exit() with interrupts disabled, and ensure
that we have a memory barrier after interrupts are disabled but
before signalling that this CPU has shut down.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 30 Nov 2010 11:12:30 +0000 (11:12 +0000)]
ARM: CPU hotplug: remove bug checks in platform_cpu_die()
platform_cpu_die() is entered from the CPU's own idle thread, which
can not be migrated to other CPUs. Moreover, the 'cpu' argument
comes from the thread info, which will always be the 'current'
CPU. So remove this useless bug check.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 30 Nov 2010 11:07:35 +0000 (11:07 +0000)]
ARM: CPU hotplug: move cpu_killed completion to core code
We always need to wait for the dying CPU to reach a safe state before
taking it down, irrespective of the requirements of the platform.
Move the completion code into the ARM SMP hotplug code rather than
having each platform re-implement this.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Fri, 3 Dec 2010 15:00:49 +0000 (15:00 +0000)]
ARM: SMP: consolidate trace_hardirqs_off() into common SMP code
All platforms call trace_hardirqs_off() in their secondary startup code,
so move this into the core SMP code - it doesn't need to be in the
per-platform code.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Fri, 3 Dec 2010 11:09:48 +0000 (11:09 +0000)]
ARM: SMP: consolidate the common parts of smp_prepare_cpus()
There is a certain amount of smp_prepare_cpus() which doesn't belong
in the platform support code - that is, code which is invariant to the
SMP implementation. Move this code into arch/arm/kernel/smp.c, and
add a platform_ prefix to the original function.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 2 Dec 2010 19:10:01 +0000 (19:10 +0000)]
ARM: SMP: get rid of references to poke_milo and Milo
Milo is an old boot loader, which is no longer relevant for these
platforms. References to it are misleading. Move the code out
of poke_milo(), and remove references to milo in comments.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 2 Dec 2010 18:09:37 +0000 (18:09 +0000)]
ARM: SMP: get rid of get_core_count()
We don't need this small function as well as scu_get_core_count()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Fri, 3 Dec 2010 19:29:53 +0000 (19:29 +0000)]
ARM: SMP: Clean up ncores sanity checks
scu_get_core_count() never returns zero cores, so we don't need to
check and correct if ncores is zero.
Tegra was missing the check against NR_CPUS, leading to a potential
bitfield overflow if this becomes the case.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Fri, 3 Dec 2010 10:42:58 +0000 (10:42 +0000)]
ARM: SMP: move CPU number sanity checks to smp_init_cpus()
Ensure that the number of CPUs is sanity checked before setting
the number of possible CPUs. This avoids any chance of overflowing
the cpu_possible bitmap.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 2 Dec 2010 09:53:54 +0000 (09:53 +0000)]
ARM: SMP: ensure smp_send_stop() waits for CPUs to stop
Wait for CPUs to indicate that they've stopped, after sending the
stop IPI, rather than blindly continuing on and hoping that they've
stopped in time. Print a warning if we fail to stop the other CPUs.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 22 Nov 2010 12:06:28 +0000 (12:06 +0000)]
ARM: SMP: use more sane register allocation for __fixup_smp_on_up
Use r0,r3-r6 rather than r0,r3,r4,r6,r7, which makes it easier to
understand which registers can be modified. Also document which
registers hold values which must be preserved.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 14:46:46 +0000 (14:46 +0000)]
ARM: SMP: collect IPI and local timer IRQs for /proc/stat
The IPI and local timer interrupts weren't being properly accounted
for in /proc/stat. Collect them from the irq_stat structure, and
return their sum.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 14:40:29 +0000 (14:40 +0000)]
ARM: SMP: provide individual IPI interrupt statistics
This separates out the individual IPI interrupt counts from the
total IPI count, which allows better visibility of what IPIs are
being used for.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 14:33:51 +0000 (14:33 +0000)]
ARM: fix /proc/interrupts formatting
As per x86, align the initial column according to how many IRQs we
have. Also, provide an english explaination for the 'LOC:' and
'IPI:' lines.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 14:20:41 +0000 (14:20 +0000)]
ARM: SMP: move ipi_count into irq_stat structure
Move the ipi_count into irq_stat, which allows the ipi_data structure
to be entirely removed.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 14:15:03 +0000 (14:15 +0000)]
ARM: SMP: provide accessors for irq_stat data
Provide __inc_irq_stat() and __get_irq_stat() to increment and
read the irq stat counters.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 13:38:06 +0000 (13:38 +0000)]
ARM: include local timer irq stats only when local timers configured
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 20 Dec 2010 14:47:19 +0000 (14:47 +0000)]
ARM: SMP: remove send_ipi_message()
send_ipi_message() does nothing except call smp_cross_call(). As
this is a static function, nothing external to this file calls it,
so we can easily clean up this now unnecessary indirection.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 2 Dec 2010 19:16:56 +0000 (19:16 +0000)]
ARM: SMP: remove IRQ-disabling for smp_cross_call()
As we've now removed the spinlock and bitmask, we have nothing left
which requires interrupts to be disabled when sending an IPI. All
current IPI-sending implementations use the GIC, which also does not
require interrupts disabled when calling gic_raise_softirq().
Remove the now unnecessary IRQ disable.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 09:54:18 +0000 (09:54 +0000)]
ARM: SMP: avoid using bitmasks and locks for IPIs, use hardware instead
Avoid using bitmasks and locks in the percpu area for IPIs, and instead
use individual software generated interrupts to identify the reason for
the IPI. This avoids the problems of having spinlocks in the percpu
area.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 09:42:08 +0000 (09:42 +0000)]
ARM: SMP: pass an ipi number to smp_cross_call()
This allows us to use smp_cross_call() to trigger a number of different
software generated interrupts, rather than combining them all on one
SGI. Recover the SGI number via do_IPI.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 15 Nov 2010 09:36:18 +0000 (09:36 +0000)]
ARM: remove obsolete smp_cross_call_done()
smp_cross_call_done() was removed long ago (see 78d236c - remove useless
smp_cross_call_done()). Remove those which have been subsequently
merged.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Wed, 1 Dec 2010 01:57:57 +0000 (17:57 -0800)]
Merge branch 'for_linus' of git://github.com/at91linux/linux-2.6-at91
* 'for_linus' of git://github.com/at91linux/linux-2.6-at91:
at91/board-yl-9200: fix typo in video support
atmel_spi: fix warning In function 'atmel_spi_dma_map_xfer'
at91/picotux200: remove commenting usb device and dataflash support
at91: rename rm9200ek and rm9200dk board file name
at91rm9200ek: fix warning: 'ek_mmc_data' defined but not used
at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used
at91: Convert remaining boards to new-style UART initialization
at91: merge all at91rm9200 defconfig in one single file
Oleg Nesterov [Tue, 30 Nov 2010 19:56:02 +0000 (20:56 +0100)]
exec: copy-and-paste the fixes into compat_do_execve() paths
Note: this patch targets 2.6.37 and tries to be as simple as possible.
That is why it adds more copy-and-paste horror into fs/compat.c and
uglifies fs/exec.c, this will be cleanuped later.
compat_copy_strings() plays with bprm->vma/mm directly and thus has
two problems: it lacks the RLIMIT_STACK check and argv/envp memory
is not visible to oom killer.
Export acct_arg_size() and get_arg_page(), change compat_copy_strings()
to use get_arg_page(), change compat_do_execve() to do acct_arg_size(0)
as do_execve() does.
Add the fatal_signal_pending/cond_resched checks into compat_count() and
compat_copy_strings(), this matches the code in fs/exec.c and certainly
makes sense.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Tue, 30 Nov 2010 19:55:34 +0000 (20:55 +0100)]
exec: make argv/envp memory visible to oom-killer
Brad Spengler published a local memory-allocation DoS that
evades the OOM-killer (though not the virtual memory RLIMIT):
http://www.grsecurity.net/~spender/64bit_dos.c
execve()->copy_strings() can allocate a lot of memory, but
this is not visible to oom-killer, nobody can see the nascent
bprm->mm and take it into account.
With this patch get_arg_page() increments current's MM_ANONPAGES
counter every time we allocate the new page for argv/envp. When
do_execve() succeds or fails, we change this counter back.
Technically this is not 100% correct, we can't know if the new
page is swapped out and turn MM_ANONPAGES into MM_SWAPENTS, but
I don't think this really matters and everything becomes correct
once exec changes ->mm or fails.
Reported-by: Brad Spengler <spender@grsecurity.net>
Reviewed-and-discussed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Trond Myklebust [Tue, 30 Nov 2010 17:42:34 +0000 (12:42 -0500)]
NFS: Fix a readdirplus bug
When comparing filehandles in the helper nfs_same_file(), we should not be
using 'strncmp()': filehandles are not null terminated strings.
Instead, we should just use the existing helper nfs_compare_fh().
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jean-Christophe PLAGNIOL-VILLARD [Sun, 21 Nov 2010 03:24:07 +0000 (11:24 +0800)]
at91/board-yl-9200: fix typo in video support
for the epson frambuffer support it's CONFIG_FB_S1D13XXX
not CONFIG_FB_S1D135XX
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Jean-Christophe PLAGNIOL-VILLARD [Sat, 20 Nov 2010 06:52:53 +0000 (14:52 +0800)]
atmel_spi: fix warning In function 'atmel_spi_dma_map_xfer'
passing argument 2 of 'dma_map_single' discards qualifiers from pointer target type
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Jean-Christophe PLAGNIOL-VILLARD [Sun, 21 Nov 2010 02:31:19 +0000 (10:31 +0800)]
at91/picotux200: remove commenting usb device and dataflash support
as based on http://www.picotux.com/pt200/picotux200.pdf
these board does not have such I/O
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:34:38 +0000 (22:34 +0800)]
at91: rename rm9200ek and rm9200dk board file name
to be a few more concistant with the other boards
as ek is for evaluation kit and dk for development kit
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:31:35 +0000 (22:31 +0800)]
at91rm9200ek: fix warning: 'ek_mmc_data' defined but not used
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:31:03 +0000 (22:31 +0800)]
at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:23:28 +0000 (22:23 +0800)]
at91: Convert remaining boards to new-style UART initialization
Convert the following AT91RM9200-based boards to the new-style UART
initialization:
- Ajeco 1ARM Single Board Computer
- Sperry-Sun KAFA board
- picotux 200
Remove the deprecated at91_init_serial
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Eric Benard [Fri, 15 Oct 2010 09:27:17 +0000 (11:27 +0200)]
at91: merge all at91rm9200 defconfig in one single file
About all options present in each file are activated
in the single file.
Signed-off-by: Eric Benard <eric@eukrea.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Linus Torvalds [Tue, 30 Nov 2010 04:42:04 +0000 (20:42 -0800)]
Linux 2.6.37-rc4
Linus Torvalds [Tue, 30 Nov 2010 04:41:39 +0000 (20:41 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Use call_rcu_sched() for pagetables
Peter Zijlstra [Fri, 26 Nov 2010 14:38:45 +0000 (15:38 +0100)]
powerpc: Use call_rcu_sched() for pagetables
PowerPC relies on IRQ-disable to guard against RCU quiecent states,
use the appropriate RCU call version.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Dave Airlie [Mon, 29 Nov 2010 23:15:46 +0000 (09:15 +1000)]
Revert "debug_locks: set oops_in_progress if we will log messages."
This reverts commit
e0fdace10e75dac67d906213b780ff1b1a4cc360.
On-list discussion seems to suggest that the robustness fixes for printk
make this unnecessary and DaveM has also agreed in person at Kernel Summit
and on list.
The main problem with this code is once we hit a lockdep splat we always
keep oops_in_progress set, the console layer uses oops_in_progress with KMS
to decide when it should be showing the oops and not showing X, so it causes
problems around suspend/resume time when a userspace resume can cause a console
switch away from X, only if oops_in_progress is set (which is what we want
if an oops actually is in progress, but not because we had a lockdep splat
2 days prior).
Cc: David S Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 29 Nov 2010 22:38:06 +0000 (14:38 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
tpm: Autodetect itpm devices
Linus Torvalds [Mon, 29 Nov 2010 22:36:33 +0000 (14:36 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits)
af_unix: limit recursion level
pch_gbe driver: The wrong of initializer entry
pch_gbe dreiver: chang author
ucc_geth: fix ucc halt problem in half duplex mode
inet: Fix __inet_inherit_port() to correctly increment bsockets and num_owners
ehea: Add some info messages and fix an issue
hso: fix disable_net
NET: wan/x25_asy, move lapb_unregister to x25_asy_close_tty
cxgb4vf: fix setting unicast/multicast addresses ...
net, ppp: Report correct error code if unit allocation failed
DECnet: don't leak uninitialized stack byte
au1000_eth: fix invalid address accessing the MAC enable register
dccp: fix error in updating the GAR
tcp: restrict net.ipv4.tcp_adv_win_scale (#20312)
netns: Don't leak others' openreq-s in proc
Net: ceph: Makefile: Remove unnessary code
vhost/net: fix rcu check usage
econet: fix CVE-2010-3848
econet: fix CVE-2010-3850
econet: disallow NULL remote addr for sendmsg(), fixes CVE-2010-3849
...
Linus Torvalds [Mon, 29 Nov 2010 22:36:07 +0000 (14:36 -0800)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
OMAP2+: PM/serial: hold console semaphore while OMAP UARTs are disabled
OMAP: UART: don't resume UARTs that are not enabled.
Matthew Garrett [Thu, 21 Oct 2010 21:42:40 +0000 (17:42 -0400)]
tpm: Autodetect itpm devices
Some Lenovos have TPMs that require a quirk to function correctly. This can
be autodetected by checking whether the device has a _HID of INTC0102. This
is an invalid PNPid, and as such is discarded by the pnp layer - however
it's still present in the ACPI code, so we can pull it out that way. This
means that the quirk won't be automatically applied on non-ACPI systems,
but without ACPI we don't have any way to identify the chip anyway so I
don't think that's a great concern.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Tested-by: Andy Isaacson <adi@hexapodia.org>
Signed-off-by: James Morris <jmorris@namei.org>
Linus Torvalds [Mon, 29 Nov 2010 22:11:08 +0000 (14:11 -0800)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (24 commits)
Btrfs: don't use migrate page without CONFIG_MIGRATION
Btrfs: deal with DIO bios that span more than one ordered extent
Btrfs: setup blank root and fs_info for mount time
Btrfs: fix fiemap
Btrfs - fix race between btrfs_get_sb() and umount
Btrfs: update inode ctime when using links
Btrfs: make sure new inode size is ok in fallocate
Btrfs: fix typo in fallocate to make it honor actual size
Btrfs: avoid NULL pointer deref in try_release_extent_buffer
Btrfs: make btrfs_add_nondir take parent inode as an argument
Btrfs: hold i_mutex when calling btrfs_log_dentry_safe
Btrfs: use dget_parent where we can UPDATED
Btrfs: fix more ESTALE problems with NFS
Btrfs: handle NFS lookups properly
btrfs: make 1-bit signed fileds unsigned
btrfs: Show device attr correctly for symlinks
btrfs: Set file size correctly in file clone
btrfs: Check if dest_offset is block-size aligned before cloning file
Btrfs: handle the space_cache option properly
btrfs: Fix early enospc because 'unused' calculated with wrong sign.
...
Linus Torvalds [Mon, 29 Nov 2010 22:10:44 +0000 (14:10 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC: Fix typos in Documentation/edac.txt
EDAC, MCE: Fix edac_init_mce_inject error handling
EDAC: Remove deprecated kbuild goal definitions
Linus Torvalds [Mon, 29 Nov 2010 22:10:22 +0000 (14:10 -0800)]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
GFS2: Userland expects quota limit/warn/usage in 512b blocks
Eric Dumazet [Thu, 25 Nov 2010 04:11:39 +0000 (04:11 +0000)]
af_unix: limit recursion level
Its easy to eat all kernel memory and trigger NMI watchdog, using an
exploit program that queues unix sockets on top of others.
lkml ref : http://lkml.org/lkml/2010/11/25/8
This mechanism is used in applications, one choice we have is to have a
recursion limit.
Other limits might be needed as well (if we queue other types of files),
since the passfd mechanism is currently limited by socket receive queue
sizes only.
Add a recursion_level to unix socket, allowing up to 4 levels.
Each time we send an unix socket through sendfd mechanism, we copy its
recursion level (plus one) to receiver. This recursion level is cleared
when socket receive queue is emptied.
Reported-by: Марк Коренберг <socketpair@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Toshiharu Okada [Mon, 29 Nov 2010 06:18:07 +0000 (06:18 +0000)]
pch_gbe driver: The wrong of initializer entry
The wrong of initializer entry was modified.
Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Reported-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Toshiharu Okada [Sun, 21 Nov 2010 19:58:37 +0000 (19:58 +0000)]
pch_gbe dreiver: chang author
This driver's AUTHOR was changed to "Toshiharu Okada" from "Masayuki Ohtake".
I update the Kconfig, renamed "Topcliff" to "EG20T".
Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Mason [Mon, 29 Nov 2010 14:49:11 +0000 (09:49 -0500)]
Btrfs: don't use migrate page without CONFIG_MIGRATION
Fixes compile error
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yang Li [Thu, 25 Nov 2010 23:29:58 +0000 (23:29 +0000)]
ucc_geth: fix ucc halt problem in half duplex mode
In commit
58933c64(ucc_geth: Fix the wrong the Rx/Tx FIFO size),
the UCC_GETH_UTFTT_INIT is set to 512 based on the recommendation
of the QE Reference Manual. But that will sometimes cause tx halt
while working in half duplex mode.
According to errata draft QE_GENERAL-A003(High Tx Virtual FIFO
threshold size can cause UCC to halt), setting UTFTT less than
[(UTFS x (M - 8)/M) - 128] will prevent this from happening
(M is the minimum buffer size).
The patch changes UTFTT back to 256.
Signed-off-by: Li Yang <leoli@freescale.com>
Cc: Jean-Denis Boyer <jdboyer@media5corp.com>
Cc: Andreas Schmitz <Andreas.Schmitz@riedel.net>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nagendra Tomar [Fri, 26 Nov 2010 14:26:27 +0000 (14:26 +0000)]
inet: Fix __inet_inherit_port() to correctly increment bsockets and num_owners
inet sockets corresponding to passive connections are added to the bind hash
using ___inet_inherit_port(). These sockets are later removed from the bind
hash using __inet_put_port(). These two functions are not exactly symmetrical.
__inet_put_port() decrements hashinfo->bsockets and tb->num_owners, whereas
___inet_inherit_port() does not increment them. This results in both of these
going to -ve values.
This patch fixes this by calling inet_bind_hash() from ___inet_inherit_port(),
which does the right thing.
'bsockets' and 'num_owners' were introduced by commit
a9d8f9110d7e953c
(inet: Allowing more than 64k connections and heavily optimize bind(0))
Signed-off-by: Nagendra Singh Tomar <tomer_iisc@yahoo.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Breno Leitao [Fri, 26 Nov 2010 07:26:27 +0000 (07:26 +0000)]
ehea: Add some info messages and fix an issue
This patch adds some debug information about ehea not being able to
allocate enough spaces. Also it correctly updates the amount of available
skb.
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Mason [Mon, 29 Nov 2010 00:56:33 +0000 (19:56 -0500)]
Btrfs: deal with DIO bios that span more than one ordered extent
The new DIO bio splitting code has problems when the bio
spans more than one ordered extent. This will happen as the
generic DIO code merges our get_blocks calls together into
a bigger single bio.
This fixes things by walking forward in the ordered extent
code finding all the overlapping ordered extents and completing them
all at once.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Linus Torvalds [Mon, 29 Nov 2010 00:27:19 +0000 (16:27 -0800)]
Un-inline get_pipe_info() helper function
This avoids some include-file hell, and the function isn't really
important enough to be inlined anyway.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 28 Nov 2010 22:09:57 +0000 (14:09 -0800)]
Export 'get_pipe_info()' to other users
And in particular, use it in 'pipe_fcntl()'.
The other pipe functions do not need to use the 'careful' version, since
they are only ever called for things that are already known to be pipes.
The normal read/write/ioctl functions are called through the file
operations structures, so if a file isn't a pipe, they'd never get
called. But pipe_fcntl() is special, and called directly from the
generic fcntl code, and needs to use the same careful function that the
splice code is using.
Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 28 Nov 2010 21:56:09 +0000 (13:56 -0800)]
Rename 'pipe_info()' to 'get_pipe_info()'
.. and change it to take the 'file' pointer instead of an inode, since
that's what all users want anyway.
The renaming is preparatory to exporting it to other users. The old
'pipe_info()' name was too generic and is already used elsewhere, so
before making the function public we need to use a more specific name.
Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 28 Nov 2010 20:25:02 +0000 (12:25 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf: Fix the software context switch counter
perf, x86: Fixup Kconfig deps
x86, perf, nmi: Disable perf if counters are not accessible
perf: Fix inherit vs. context rotation bug
Linus Torvalds [Sun, 28 Nov 2010 20:24:20 +0000 (12:24 -0800)]
Merge branch 'fwnet' of git://git./linux/kernel/git/ieee1394/linux1394-2.6
* 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: net: throttle TX queue before running out of tlabels
firewire: net: replace lists by counters
firewire: net: fix memory leaks
firewire: net: count stats.tx_packets and stats.tx_bytes
Filip Aben [Thu, 25 Nov 2010 03:40:50 +0000 (03:40 +0000)]
hso: fix disable_net
The HSO driver incorrectly creates a serial device instead of a net
device when disable_net is set. It shouldn't create anything for the
network interface.
Signed-off-by: Filip Aben <f.aben@option.com>
Reported-by: Piotr Isajew <pki@ex.com.pl>
Reported-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Slaby [Wed, 24 Nov 2010 13:54:54 +0000 (13:54 +0000)]
NET: wan/x25_asy, move lapb_unregister to x25_asy_close_tty
We register lapb when tty is created, but unregister it only when the
device is UP. So move the lapb_unregister to x25_asy_close_tty after
the device is down.
The old behaviour causes ldisc switching to fail each second attempt,
because we noted for us that the device is unused, so we use it the
second time, but labp layer still have it registered, so it fails
obviously.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Sergey Lapin <slapin@ossfans.org>
Cc: Andrew Hendry <andrew.hendry@gmail.com>
Tested-by: Sergey Lapin <slapin@ossfans.org>
Tested-by: Mikhail Ulyanov <ulyanov.mikhail@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Casey Leedom [Wed, 24 Nov 2010 12:23:57 +0000 (12:23 +0000)]
cxgb4vf: fix setting unicast/multicast addresses ...
We were truncating the number of unicast and multicast MAC addresses
supported. Additionally, we were incorrectly computing the MAC Address
hash (a "1 << N" where we needed a "1ULL << N").
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cyrill Gorcunov [Tue, 23 Nov 2010 11:43:44 +0000 (11:43 +0000)]
net, ppp: Report correct error code if unit allocation failed
Allocating unit from ird might return several error codes
not only -EAGAIN, so it should not be changed and returned
precisely. Same time unit release procedure should be invoked
only if device is unregistering.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
CC: Paul Mackerras <paulus@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Rosenberg [Tue, 23 Nov 2010 11:02:13 +0000 (11:02 +0000)]
DECnet: don't leak uninitialized stack byte
A single uninitialized padding byte is leaked to userspace.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
CC: stable <stable@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wolfgang Grandegger [Tue, 23 Nov 2010 06:40:25 +0000 (06:40 +0000)]
au1000_eth: fix invalid address accessing the MAC enable register
"aup->enable" holds already the address pointing to the MAC enable
register. The bug was introduced by commit d0e7cb:
"au1000-eth: remove volatiles, switch to I/O accessors".
CC: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wolfgang Grandegger <wg@denx.de>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gerrit Renker [Tue, 23 Nov 2010 02:36:56 +0000 (02:36 +0000)]
dccp: fix error in updating the GAR
This fixes a bug in updating the Greatest Acknowledgment number Received (GAR):
the current implementation does not track the greatest received value -
lower values in the range AWL..AWH (RFC 4340, 7.5.1) erase higher ones.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 28 Nov 2010 19:27:44 +0000 (11:27 -0800)]
Merge branch 'vhost-net' of git://git./linux/kernel/git/mst/vhost
Alexey Dobriyan [Mon, 22 Nov 2010 12:54:21 +0000 (12:54 +0000)]
tcp: restrict net.ipv4.tcp_adv_win_scale (#20312)
tcp_win_from_space() does the following:
if (sysctl_tcp_adv_win_scale <= 0)
return space >> (-sysctl_tcp_adv_win_scale);
else
return space - (space >> sysctl_tcp_adv_win_scale);
"space" is int.
As per C99 6.5.7 (3) shifting int for 32 or more bits is
undefined behaviour.
Indeed, if sysctl_tcp_adv_win_scale is exactly 32,
space >> 32 equals space and function returns 0.
Which means we busyloop in tcp_fixup_rcvbuf().
Restrict net.ipv4.tcp_adv_win_scale to [-31, 31].
Fix https://bugzilla.kernel.org/show_bug.cgi?id=20312
Steps to reproduce:
echo 32 >/proc/sys/net/ipv4/tcp_adv_win_scale
wget www.kernel.org
[softlockup]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pavel Emelyanov [Mon, 22 Nov 2010 03:26:12 +0000 (03:26 +0000)]
netns: Don't leak others' openreq-s in proc
The /proc/net/tcp leaks openreq sockets from other namespaces.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tracey Dent [Sun, 21 Nov 2010 15:23:50 +0000 (15:23 +0000)]
Net: ceph: Makefile: Remove unnessary code
Remove the if and else conditional because the code is in mainline and there
is no need in it being there.
Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 27 Nov 2010 20:42:15 +0000 (12:42 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (30 commits)
ALSA: hda - Use ALC_INIT_DEFAULT for really default initialization
ASoC: Fix resource reclaim for osk5912
ASoC: tlv320aic3x - fix variable may be used uninitialized warning
ASoC: davinci-vcif - fix a memory leak
ASoC: phycore-ac97: fix resource leak
ASoC: imx-ssi: fix resource leak
ASoC: simone: fix resource leak in simone_init error path
ASoC: sam9g20_wm8731: fix resource leak in at91sam9g20ek_init error path
ASoC: snd-soc-
afeb9260: remove unneeded platform_device_del in error path
ASoC: pcm030-audio-fabric: fix resource leak in pcm030_fabric_init error path
ASoC: efika-audio-fabric: fix resource leak in efika_fabric_init error path
ASoC: Call snd_soc_unregister_dais instead of snd_soc_unregister_dai in sh4_soc_dai_remove
ASoC: fix SND_PXA2XX_LIB Kconfig warning
ALSA: hda - Fix ALC660-VD/ALC861-VD capture/playback mixers
ALSA: HDA: Add an extra DAC for Realtek ALC887-VD
ASoC: nuc900-ac97: fix a memory leak
ASoC: Return proper error for omap3pandora_soc_init
ASoC: wm8961 - clear WM8961_MCLKDIV bit for freq <=
16500000
ASoC: wm8961 - clear WM8961_DACSLOPE bit for normal mode
ALSA: hda - Fix Acer 7730G support
...
Josef Bacik [Fri, 19 Nov 2010 19:59:15 +0000 (14:59 -0500)]
Btrfs: setup blank root and fs_info for mount time
There is a problem with how we use sget, it searches through the list of supers
attached to the fs_type looking for a super with the same fs_devices as what
we're trying to mount. This depends on sb->s_fs_info being filled, but we don't
fill that in until we get to btrfs_fill_super, so we could hit supers on the
fs_type super list that have a null s_fs_info. In order to fix that we need to
go ahead and setup a blank root with a blank fs_info to hold fs_devices, that
way our test will work out right and then we can set s_fs_info in
btrfs_set_super, and then open_ctree will simply use our pre-allocated root and
fs_info when setting everything up. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Josef Bacik [Tue, 23 Nov 2010 19:36:57 +0000 (19:36 +0000)]
Btrfs: fix fiemap
There are two big problems currently with FIEMAP
1) We return extents for holes. This isn't supposed to happen, we just don't
return extents for holes and then userspace interprets the lack of an extent as
a hole.
2) We sometimes don't set FIEMAP_EXTENT_LAST properly. This is because we wait
to see a EXTENT_FLAG_VACANCY flag on the em, but this won't happen if say we ask
fiemap to map up to the last extent in a file, and there is nothing but holes up
to the i_size. To fix this we need to lookup the last extent in this file and
save the logical offset, so if we happen to try and map that extent we can be
sure to set FIEMAP_EXTENT_LAST.
With this patch we now pass xfstest 225, which we never have before.
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Ian Kent [Mon, 22 Nov 2010 02:21:38 +0000 (02:21 +0000)]
Btrfs - fix race between btrfs_get_sb() and umount
When mounting a btrfs file system btrfs_test_super() may attempt to
use sb->s_fs_info, the btrfs root, of a super block that is going away
and that has had the btrfs root set to NULL in its ->put_super(). But
if the super block is going away it cannot be an existing super block
so we can return false in this case.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Josef Bacik [Tue, 23 Nov 2010 19:50:59 +0000 (19:50 +0000)]
Btrfs: update inode ctime when using links
Currently we fail xfstest 236 because we're not updating the inode ctime on
link. This is a simple fix, and makes it so we pass 236 now.
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Josef Bacik [Mon, 22 Nov 2010 18:55:39 +0000 (18:55 +0000)]
Btrfs: make sure new inode size is ok in fallocate
We have been failing xfstest 228 forever, because we don't check to make sure
the new inode size is acceptable as far as RLIMIT is concerned. Just check to
make sure it's ok to create a inode with this new size and error out if not.
With this patch we now pass 228.
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Josef Bacik [Mon, 22 Nov 2010 18:50:32 +0000 (18:50 +0000)]
Btrfs: fix typo in fallocate to make it honor actual size
There is a typo in __btrfs_prealloc_file_range() where we set the i_size to
actual_len/cur_offset, and then just set it to cur_offset again, and do the same
with btrfs_ordered_update_i_size(). This fixes it back to keeping i_size in a
local variable and then updating i_size properly. Tested this with
xfs_io -F -f -c "falloc 0 1" -c "pwrite 0 1" foo
stat'ing foo gives us a size of 1 instead of 4096 like it was. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Linus Torvalds [Fri, 26 Nov 2010 22:30:30 +0000 (07:30 +0900)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
NFS: Ensure we return the dirent->d_type when it is known
NFS: Correct the array bound calculation in nfs_readdir_add_to_array
NFS: Don't ignore errors from nfs_do_filldir()
NFS: Fix the error handling in "uncached_readdir()"
NFS: Fix a page leak in uncached_readdir()
NFS: Fix a page leak in nfs_do_filldir()
NFS: Assume eof if the server returns no readdir records
NFS: Buffer overflow in ->decode_dirent() should not be fatal
Pure nfs client performance using odirect.
SUNRPC: Fix an infinite loop in call_refresh/call_refreshresult
Linus Torvalds [Fri, 26 Nov 2010 22:30:08 +0000 (07:30 +0900)]
Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6
* 'linux-next' of git://git.infradead.org/ubi-2.6:
UBI: release locks in check_corruption
Linus Torvalds [Fri, 26 Nov 2010 22:29:20 +0000 (07:29 +0900)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
posix-cpu-timers: Rcu_read_lock/unlock protect find_task_by_vpid call
Linus Torvalds [Fri, 26 Nov 2010 22:28:47 +0000 (07:28 +0900)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
dmar, x86: Use function stubs when CONFIG_INTR_REMAP is disabled
x86-64: Fix and clean up AMD Fam10 MMCONF enabling
x86: UV: Address interrupt/IO port operation conflict
x86: Use online node real index in calulate_tbl_offset()
x86, asm: Fix binutils 2.15 build failure
Linus Torvalds [Fri, 26 Nov 2010 22:28:17 +0000 (07:28 +0900)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf symbols: Remove incorrect open-coded container_of()
perf record: Handle restrictive permissions in /proc/{kallsyms,modules}
x86/kprobes: Prevent kprobes to probe on save_args()
irq_work: Drop cmpxchg() result
perf: Fix owner-list vs exit
x86, hw_nmi: Move backtrace_mask declaration under ARCH_HAS_NMI_WATCHDOG
tracing: Fix recursive user stack trace
perf,hw_breakpoint: Initialize hardware api earlier
x86: Ignore trap bits on single step exceptions
tracing: Force arch_local_irq_* notrace for paravirt
tracing: Fix module use of trace_bprintk()
Linus Torvalds [Fri, 26 Nov 2010 22:27:54 +0000 (07:27 +0900)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Fix idle balancing
sched: Fix volanomark performance regression
Linus Torvalds [Fri, 26 Nov 2010 22:26:48 +0000 (07:26 +0900)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] qdio: free indicator after reset is finished
[S390] nmi: fix clock comparator revalidation
Linus Torvalds [Fri, 26 Nov 2010 22:17:50 +0000 (07:17 +0900)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cciss: fix build for PROC_FS disabled
block: fix amiga and atari floppy driver compile warning
blk-throttle: Fix calculation of max number of WRITES to be dispatched
ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()
xen/blkfront: cope with backend that fail empty BLKIF_OP_WRITE_BARRIER requests
xen/blkfront: Implement FUA with BLKIF_OP_WRITE_BARRIER
xen/blkfront: change blk_shadow.request to proper pointer
xen/blkfront: map REQ_FLUSH into a full barrier
Linus Torvalds [Fri, 26 Nov 2010 22:17:16 +0000 (07:17 +0900)]
Merge branch 'rmobile-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-2.6
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
ARM: mach-shmobile: clock-sh7372: remove bogus pllc2 clock toggling.
ARM: mach-shmobile: clock-sh7372: remove unnecessary fsi clocks
ARM: mach-shmobile: clock-sh7372: modify error code
ARM: mach-shmobile: ap4evb: FSI clock use proper process for ak4642
ARM: mach-shmobile: ap4evb: FSI clock use proper process for HDMI
ARM: mach-shmobile: clock-sh7372: remove fsidiv bogus disable
ARM: mach-shmobile: sh7372 USB0/IIC1 MSTP fix
Linus Torvalds [Fri, 26 Nov 2010 22:16:29 +0000 (07:16 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: sdhci: 8-bit bus width changes
mmc: sdio: fix runtime PM anomalies by introducing MMC_CAP_POWER_OFF_CARD
mmc: sdio: fix nasty oops in mmc_sdio_detect
mmc: omap4: hsmmc: Fix improper card detection while booting
mmc: fix rmmod race for hosts using card-detection polling
mmc: sdhci: Fix crash on boot with C0 stepping Moorestown platforms
mmc: sdhci-esdhc-imx: enable QUIRK_NO_MULTIBLOCK only for i.MX25 and i.MX35
mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhci
mmc: sdhci: Properly enable SDIO IRQ wakeups
mmc: ushc: Return proper error code for ushc_probe()
mmc: Fix printing of card DDR type
Linus Torvalds [Fri, 26 Nov 2010 22:15:25 +0000 (07:15 +0900)]
Merge branch 's5p-fixes-for-linus' of git://git./linux/kernel/git/kgene/linux-samsung
* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S5PV210: Fix sysdev related warning messages
ARM: S3C24XX: Fix UART3 submask on S3C2416 and S3C2443
ARM: S3C24XX: Fix Demux error in UART3 irqs on S3C2443 and S3C2416
ARM: S3C64XX: fix uart clock setup for mini6410/real6410
ARM: S3C24XX: Fix wrong s3c_gpio_cfgpull
ARM: S3C2410: Adapt h1940-bluetooth to gpiolib changes