Linus Torvalds [Fri, 24 Apr 2009 14:44:58 +0000 (07:44 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc: Fix modular build of ide-pmac when mediabay is built in
powerpc/pasemi: Fix build error on UP
powerpc: Make macintosh/mediabay driver depend on CONFIG_BLOCK
maintainers: Fix PS3 patterns
powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warning
powerpc/32: Don't clobber personality flags on exec
powerpc: Fix crash on CPU hotplug
powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig cover
powerpc/85xx: Added SMP defconfig
powerpc/85xx: Enabled a bunch of FSL specific drivers/options
powerpc/85xx: Updated generic mpc85xx_defconfig
powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCD
fsl_rio: Pass the proper device to dma mapping routines
powerpc: Fix of_node_put() exit path in of_irq_map_one()
powerpc/5200: defconfig updates
powerpc/5200: Add FLASH nodes to lite5200 device tree
powerpc/device-tree: Document MTD nodes with multiple "reg" tuples
powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-of
powerpc/5200: Bring the legacy fsl_spi_platform_data hooks back
Oleg Nesterov [Thu, 23 Apr 2009 23:02:45 +0000 (01:02 +0200)]
check_unsafe_exec: s/lock_task_sighand/rcu_read_lock/
write_lock(¤t->fs->lock) guarantees we can't wrongly miss
LSM_UNSAFE_SHARE, this is what we care about. Use rcu_read_lock()
instead of ->siglock to iterate over the sub-threads. We must see
all CLONE_THREAD|CLONE_FS threads which didn't pass exit_fs(), it
takes fs->lock too.
With or without this patch we can miss the freshly cloned thread
and set LSM_UNSAFE_SHARE, we don't care.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
[ Fixed lock/unlock typo - Hugh ]
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Thu, 23 Apr 2009 23:01:56 +0000 (01:01 +0200)]
do_execve() must not clear fs->in_exec if it was set by another thread
If do_execve() fails after check_unsafe_exec(), it clears fs->in_exec
unconditionally. This is wrong if we race with our sub-thread which
also does do_execve:
Two threads T1 and T2 and another process P, all share the same
->fs.
T1 starts do_execve(BAD_FILE). It calls check_unsafe_exec(), since
->fs is shared, we set LSM_UNSAFE but not ->in_exec.
P exits and decrements fs->users.
T2 starts do_execve(), calls check_unsafe_exec(), now ->fs is not
shared, we set fs->in_exec.
T1 continues, open_exec(BAD_FILE) fails, we clear ->in_exec and
return to the user-space.
T1 does clone(CLONE_FS /* without CLONE_THREAD */).
T2 continues without LSM_UNSAFE_SHARE while ->fs is shared with
another process.
Change check_unsafe_exec() to return res = 1 if we set ->in_exec, and change
do_execve() to clear ->in_exec depending on res.
When do_execve() suceeds, it is safe to clear ->in_exec unconditionally.
It can be set only if we don't share ->fs with another process, and since
we already killed all sub-threads either ->in_exec == 0 or we are the
only user of this ->fs.
Also, we do not need fs->lock to clear fs->in_exec.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bartlomiej Zolnierkiewicz [Tue, 21 Apr 2009 09:04:37 +0000 (09:04 +0000)]
powerpc: Fix modular build of ide-pmac when mediabay is built in
Now that the powermac IDE host driver can be modular, we need to
export check_media_bay_by_base() and media_bay_set_ide_infos()
from drivers/macintosh/mediabay.c for it.
This fixes the following build error:
> CC [M] drivers/ide/pmac.o
> drivers/ide/pmac.c: In function ‘pmac_ide_init_dev’:
> drivers/ide/pmac.c:955: error: implicit declaration of function
> ‘check_media_bay_by_base’
> drivers/ide/pmac.c: In function ‘pmac_ide_setup_device’:
> drivers/ide/pmac.c:1090: error: implicit declaration of function
> ‘media_bay_set_ide_infos’
> make[2]: *** [drivers/ide/pmac.o] Error 1
> make[1]: *** [drivers/ide] Error 2
> make: *** [drivers] Error 2
Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geoff Levand [Fri, 17 Apr 2009 06:36:37 +0000 (06:36 +0000)]
powerpc/pasemi: Fix build error on UP
A non-SMP version of smp_send_stop() is now included in smp.h.
Remove the unneeded definition in the pasemi setup.c.
Fixes build errors like these when CONFIG_SMP=n:
arch/powerpc/platforms/pasemi/setup.c:48: error: redefinition of ‘smp_send_stop’
include/linux/smp.h:125: error: previous definition of 'smp_send_stop' was here
Reported-by: subrata@linux.vnet.ibm.com
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Alexander Beregalov [Fri, 17 Apr 2009 00:15:13 +0000 (00:15 +0000)]
powerpc: Make macintosh/mediabay driver depend on CONFIG_BLOCK
Fixes this build error:
In file included from drivers/macintosh/mediabay.c:21:
include/linux/ide.h:605: error: field 'request_sense_rq' has incomplete type
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geoff Levand [Thu, 16 Apr 2009 09:05:40 +0000 (09:05 +0000)]
maintainers: Fix PS3 patterns
Correct the MAINTAINERS file patterns for PS3. Removes some PS3
patterns that were under 'CELL BROADBAND ENGINE ARCHITECTURE', and
adds missing PS3 sound and RTC driver patterns.
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geoff Levand [Thu, 16 Apr 2009 09:05:38 +0000 (09:05 +0000)]
powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warning
Fix build warnings like these when CONFIG_PS3_FLASH=n:
arch/powerpc/platforms/ps3/os-area.c: warning: 'update_flash_db' defined but not used
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Andreas Schwab [Thu, 16 Apr 2009 06:22:01 +0000 (06:22 +0000)]
powerpc/32: Don't clobber personality flags on exec
Now that ppc32 implements address randomization it also wants to inherit
personality flags like ADDR_NO_RANDOMIZE across exec, for things like
`setarch ppc -R' to work. But the ppc32 version of SET_PERSONALITY
forcefully sets PER_LINUX, clearing all personality flags. So be
careful about preserving the flags.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Thu, 16 Apr 2009 04:47:32 +0000 (04:47 +0000)]
powerpc: Fix crash on CPU hotplug
early_init_mmu_secondary() is called at CPU hotplug time, so it
must be marked as __cpuinit, not __init.
Caused by
757c74d2 ("powerpc/mm: Introduce early_init_mmu() on 64-bit").
Tested-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Linus Torvalds [Wed, 22 Apr 2009 03:07:00 +0000 (20:07 -0700)]
Linux 2.6.30-rc3
Paul Mackerras [Wed, 22 Apr 2009 03:02:09 +0000 (13:02 +1000)]
Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 into merge
Arjan van de Ven [Tue, 21 Apr 2009 20:32:54 +0000 (13:32 -0700)]
driver synchronization: make scsi_wait_scan more advanced
There is currently only one way for userspace to say "wait for my storage
device to get ready for the modules I just loaded": to load the
scsi_wait_scan module. Expectations of userspace are that once this
module is loaded, all the (storage) devices for which the drivers
were loaded before the module load are present.
Now, there are some issues with the implementation, and the async
stuff got caught in the middle of this: The existing code only
waits for the scsy async probing to finish, but it did not take
into account at all that probing might not have begun yet.
(Russell ran into this problem on his computer and the fix works for him)
This patch fixes this more thoroughly than the previous "fix", which
had some bad side effects (namely, for kernel code that wanted to wait for
the scsi scan it would also do an async sync, which would deadlock if you did
it from async context already.. there's a report about that on lkml):
The patch makes the module first wait for all device driver probes, and then it
will wait for the scsi parallel scan to finish.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jonathan Corbet [Tue, 21 Apr 2009 22:30:32 +0000 (16:30 -0600)]
Trivial: fix a typo in slow-work.h
Fix a comment typo in slow-work.h
...a trivial mistake, but it will mess up kerneldoc if nothing else.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Tue, 21 Apr 2009 22:00:29 +0000 (23:00 +0100)]
PERCPU: Collect the DECLARE/DEFINE declarations together
Collect the DECLARE/DEFINE declarations together in linux/percpu-defs.h so
that they're in one place, and give them descriptive comments, particularly
the SHARED_ALIGNED variant.
It would be nice to collect these in linux/percpu.h, but that's not possible
without sorting out the severe #include recursion between the x86 arch headers
and the general headers (and possibly other arches too).
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Tue, 21 Apr 2009 22:00:24 +0000 (23:00 +0100)]
FRV: Fix the section attribute on UP DECLARE_PER_CPU()
In non-SMP mode, the variable section attribute specified by DECLARE_PER_CPU()
does not agree with that specified by DEFINE_PER_CPU(). This means that
architectures that have a small data section references relative to a base
register may throw up linkage errors due to too great a displacement between
where the base register points and the per-CPU variable.
On FRV, the .h declaration says that the variable is in the .sdata section, but
the .c definition says it's actually in the .data section. The linker throws
up the following errors:
kernel/built-in.o: In function `release_task':
kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o
kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o
To fix this, DECLARE_PER_CPU() should simply apply the same section attribute
as does DEFINE_PER_CPU(). However, this is made slightly more complex by
virtue of the fact that there are several variants on DEFINE, so these need to
be matched by variants on DECLARE.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 21 Apr 2009 21:12:58 +0000 (14:12 -0700)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: fix btrfs fallocate oops and deadlock
Btrfs: use the right node in reada_for_balance
Btrfs: fix oops on page->mapping->host during writepage
Btrfs: add a priority queue to the async thread helpers
Btrfs: use WRITE_SYNC for synchronous writes
Linus Torvalds [Tue, 21 Apr 2009 21:12:43 +0000 (14:12 -0700)]
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
go7007: Convert to the new i2c device binding model
Kumar Gala [Wed, 15 Apr 2009 21:48:50 +0000 (16:48 -0500)]
powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig cover
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Kumar Gala [Wed, 15 Apr 2009 21:33:08 +0000 (16:33 -0500)]
powerpc/85xx: Added SMP defconfig
Since the vast majority of 85xx platforms are UP we introduce a new SMP
config for the few platforms that have more than one core. Beyond
CONFIG_SMP=y and its dependencies this should be identical to
mpc85xx_defconfig.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Kumar Gala [Tue, 21 Apr 2009 20:40:51 +0000 (15:40 -0500)]
powerpc/85xx: Enabled a bunch of FSL specific drivers/options
* Add new 85xx boards
* Added QE/FSL gpio
* Enabled PHY drivers that exist on various boards
* Enabled FS_ENET & UCC ethernet drivers (CPM2 & QE)
* FSL HW Crypto Engine
* CPM I2C
* QE Serial
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Kumar Gala [Wed, 15 Apr 2009 21:10:20 +0000 (16:10 -0500)]
powerpc/85xx: Updated generic mpc85xx_defconfig
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Roel Kluin [Tue, 21 Apr 2009 19:24:58 +0000 (12:24 -0700)]
bfin_5xx: misplaced parentheses
`!' has a higher precedence than `&', parentheses are misplaced.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Cc: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KOSAKI Motohiro [Tue, 21 Apr 2009 19:24:57 +0000 (12:24 -0700)]
vmscan,memcg: reintroduce sc->may_swap
Commit
a6dc60f8975ad96d162915e07703a4439c80dcf0 ("vmscan: rename
sc.may_swap to may_unmap") removed the may_swap flag, but memcg had used
it as a flag for "we need to use swap?", as the name indicate.
And in the current implementation, memcg cannot reclaim mapped file
caches when mem+swap hits the limit.
re-introduce may_swap flag and handle it at get_scan_ratio(). This
patch doesn't influence any scan_control users other than memcg.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Jiang [Tue, 21 Apr 2009 19:24:56 +0000 (12:24 -0700)]
edac: ppc mpc85xx fix mc err detect
Error found by Jeff Haran.
The error detect register is 0s when no errors are detected. The check
code is incorrect, so reverse check sense.
Reported-by: Jeff Haran <jharan@Brocade.COM>
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Paris [Tue, 21 Apr 2009 19:24:54 +0000 (12:24 -0700)]
scsi: mpt: suppress debugobjects warning
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13133
ODEBUG: object is on stack, but not annotated
------------[ cut here ]------------
WARNING: at lib/debugobjects.c:253 __debug_object_init+0x1f3/0x276()
Hardware name: VMware Virtual Platform
Modules linked in: mptspi(+) mptscsih mptbase scsi_transport_spi ext3 jbd mbcache
Pid: 540, comm: insmod Not tainted 2.6.28-mm1 #2
Call Trace:
[<
c042c51c>] warn_slowpath+0x74/0x8a
[<
c0469600>] ? start_critical_timing+0x96/0xb7
[<
c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<
c0446fad>] ? trace_hardirqs_off_caller+0x18/0xaf
[<
c044704f>] ? trace_hardirqs_off+0xb/0xd
[<
c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<
c042cb84>] ? release_console_sem+0x1a5/0x1ad
[<
c05013e6>] __debug_object_init+0x1f3/0x276
[<
c0501494>] debug_object_init+0x13/0x17
[<
c0433c56>] init_timer+0x10/0x1a
[<
e08e5b54>] mpt_config+0x1c1/0x2b7 [mptbase]
[<
e08e3b82>] ? kmalloc+0x8/0xa [mptbase]
[<
e08e3b82>] ? kmalloc+0x8/0xa [mptbase]
[<
e08e6fa2>] mpt_do_ioc_recovery+0x950/0x1212 [mptbase]
[<
c04496c2>] ? __lock_acquire+0xa69/0xacc
[<
c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c
[<
c060c3af>] ? _spin_unlock_irq+0x22/0x26
[<
c04f2d8b>] ? string+0x2b/0x76
[<
c04f310e>] ? vsnprintf+0x338/0x7b3
[<
c04496c2>] ? __lock_acquire+0xa69/0xacc
[<
c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<
c04496c2>] ? __lock_acquire+0xa69/0xacc
[<
c044897d>] ? debug_check_no_locks_freed+0xeb/0x105
[<
c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c
[<
c04488bc>] ? debug_check_no_locks_freed+0x2a/0x105
[<
c0446b8c>] ? lock_release_holdtime+0x43/0x48
[<
c043f742>] ? up_read+0x16/0x29
[<
c05076f8>] ? pci_get_slot+0x66/0x72
[<
e08e89ca>] mpt_attach+0x881/0x9b1 [mptbase]
[<
e091c8e5>] mptspi_probe+0x11/0x354 [mptspi]
Noticing that every caller of mpt_config has its CONFIGPARMS struct
declared on the stack and thus the &pCfg->timer is always on the stack I
changed init_timer() to init_timer_on_stack() and it seems to have shut
up.....
Cc: "Moore, Eric Dean" <Eric.Moore@lsil.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Cc: <stable@kernel.org> [2.6.29.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Robin Holt [Tue, 21 Apr 2009 19:24:53 +0000 (12:24 -0700)]
sgi-xp/sgi-gru: allow modules to load on non-uv systems
For an upcoming distro release, we need to have the xp kernel module
loadable even when not on UV equipment. The xpc module will not load.
This will allow one set of modules dependent upon xp to work on either UV
or non-UV equipment.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
WANG Cong [Tue, 21 Apr 2009 19:24:52 +0000 (12:24 -0700)]
uml: kill a kconfig warning
Got this warning from Kconfig:
boolean symbol INPUT tested for 'm'? test forced to 'n'
because INPUT is tristate, not bool.
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Tue, 21 Apr 2009 19:24:51 +0000 (12:24 -0700)]
frv: insert PCI root bus resources for the MB93090 devel motherboard
Insert PCI root bus resources for the FRV-based MB93090 development kit
motherboard. This is required because the CPU's window onto the PCI bus
address space is considerably smaller than the CPU's full address space
and non-PCI devices lie outside of the PCI window that we might want to
access.
Without this patch, the PCI root bus uses the platform-level bus
resources, and these are then confined to the PCI window, thus making
platform_device_add() reject devices outside of this window.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Halasa [Tue, 21 Apr 2009 19:24:49 +0000 (12:24 -0700)]
rtc-cmos: fix printk output
With no IRQ available/defined, RTC-CMOS driver prints something like:
rtc0: alarms up to one no, y3k, 114 bytes nvram
^^^^
I guess the following is a bit easier to understand:
rtc0: no alarms, y3k, 114 bytes nvram
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 21 Apr 2009 19:24:49 +0000 (12:24 -0700)]
spi: documentation: emphasise spi_setup() semantics
This is a doc-only patch which I hope will reduce the number of
spi_master controller driver patches starting out with a common
implementation bug.
(As in: almost every spi_master driver I see starts out with its
version of this bug. Sigh.)
It just re-emphasizes that the setup() method may be called for one
device while a transfer is active on another ... which means that most
driver implementations shouldn't touch any registers.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Robert P. J. Day [Tue, 21 Apr 2009 19:24:47 +0000 (12:24 -0700)]
MAINTAINERS: add a more searchable string for the H8300 architecture.
Add a parenthesized string of "H8300" for more convenient searchability
in the MAINTAINERS file.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matt Mackall [Tue, 21 Apr 2009 19:24:47 +0000 (12:24 -0700)]
MAINTAINERS: add Matt Mackall to embedded maintainers
Impact: make more work for myself
Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 21 Apr 2009 19:24:46 +0000 (12:24 -0700)]
spi: pxa2xx: limit reaches -1
On line 944 the return value of flush() is considered as a boolean,
but limit reaches -1 upon timeout which evaluates to true.
On 540, 594, 720 the same occurs for wait_ssp_rx_stall()
On 536 the same occurs for wait_dma_channel_stop()
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Perches [Tue, 21 Apr 2009 19:24:45 +0000 (12:24 -0700)]
MAINTAINERS: update KMEMTRACE pattern after file rename
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Perches [Tue, 21 Apr 2009 19:24:44 +0000 (12:24 -0700)]
MAINTAINERS: remove include/asm-*/suspend* file patterns
There are no more arches with suspend support using these directories.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Daniel Ribeiro [Tue, 21 Apr 2009 19:24:43 +0000 (12:24 -0700)]
pxa2xx_spi: restore DRCMR on resume
If DMA is enabled, any spi_sync call after suspend/resume would block
forever, because DRCMR is lost on suspend. This patch restores DRCMR to
the same values set by probe.
Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Helge Deller [Tue, 21 Apr 2009 19:24:42 +0000 (12:24 -0700)]
drivers/input/serio/hp_sdc.c: fix crash when removing hp_sdc module
On parisc machines, which don't have HIL, removing the hp_sdc module
panics the kernel. Fix this by returning early in hp_sdc_exit() if no HP
SDC controller was found.
Add functionality to probe for the hp_sdc_mlc kernel module (which takes
care of the upper layer HIL functionality on parisc) after two seconds.
This is needed to get all the other HIL drivers (keyboard / mouse/ ..)
drivers automatically loaded by udev later as well.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Frans Pop <elendil@planet.nl>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Tue, 21 Apr 2009 19:24:41 +0000 (12:24 -0700)]
memcg: use rcu_dereference to access mm->owner
mm->owner should be accessed with rcu_dereference().
Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Akinobu Mita [Tue, 21 Apr 2009 19:24:05 +0000 (12:24 -0700)]
hugetlbfs: return negative error code for bad mount option
This fixes the following BUG:
# mount -o size=MM -t hugetlbfs none /huge
hugetlbfs: Bad value 'MM' for mount option 'size=MM'
------------[ cut here ]------------
kernel BUG at fs/super.c:996!
Due to
BUG_ON(!mnt->mnt_sb);
in vfs_kern_mount().
Also, remove unused #include <linux/quotaops.h>
Cc: William Irwin <wli@holomorphy.com>
Cc: <stable@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
dann frazier [Tue, 21 Apr 2009 19:24:05 +0000 (12:24 -0700)]
ipmi: add oem message handling
Enable userspace to receive messages that a BMC transmits using an OEM
medium. This is used by the HP iLO2.
Based on code originally written by Patrick Schoeller.
Signed-off-by: dann frazier <dannf@hp.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Corey Minyard [Tue, 21 Apr 2009 19:24:04 +0000 (12:24 -0700)]
ipmi: fix statistics counting issues
Bela Lubkin noticed that the statistics for send IPMB and LAN commands
in the IPMI driver could be incremented even if an error occurred. Move
the increments to the proper place to avoid this.
Also add some statistics for retransmissions that failed, and some little
helper functions to neaten up the code a little.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Bela Lubkin <blubkin@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Corey Minyard [Tue, 21 Apr 2009 19:24:03 +0000 (12:24 -0700)]
ipmi: test for event buffer before using
The IPMI driver would attempt to use the event buffer even if that
didn't exist on the BMC. This patch modified the IPMI driver to check
for the event buffer's existence before trying to use it.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Corey Minyard [Tue, 21 Apr 2009 19:24:02 +0000 (12:24 -0700)]
ipmi: fix platform return check
The wrong return value is being tested when allocating a platform device
in the IPMI SI code. Check the right value.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Magnus Damm [Tue, 21 Apr 2009 19:24:02 +0000 (12:24 -0700)]
clocksource: add enable() and disable() callbacks
Add enable() and disable() callbacks for clocksources.
This allows us to put unused clocksources in power save mode. The
functions clocksource_enable() and clocksource_disable() wrap the
callbacks and are inserted in the timekeeping code to enable before use
and disable after switching to a new clocksource.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Magnus Damm [Tue, 21 Apr 2009 19:24:00 +0000 (12:24 -0700)]
clocksource: pass clocksource to read() callback
Pass clocksource pointer to the read() callback for clocksources. This
allows us to share the callback between multiple instances.
[hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods]
[akpm@linux-foundation.org: cleanup]
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Denis V. Lunev [Tue, 21 Apr 2009 19:23:59 +0000 (12:23 -0700)]
pxafb: lcsr1 is unused without CONFIG_FB_PXA_OVERLAY
Fixes the warning:
drivers/video/pxafb.c: In function 'pxafb_handle_irq':
drivers/video/pxafb.c:1442: warning: unused variable 'lcsr1'
[akpm@linux-foundation.org: save an ifdef]
Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vlada Peric [Tue, 21 Apr 2009 19:23:59 +0000 (12:23 -0700)]
asiliantfb: add missing return statement
Commit
032220ba (asiliantfb: fix cmap memory leaks) changed the function
init_asiliant from void to int, resulting in the following compile warning:
drivers/video/asiliantfb.c: In function `init_asiliant':
drivers/video/asiliantfb.c:536: warning: control reaches end of non-void function
Fix the warning by returning 0.
Signed-off-by: Vlada Peric <vlada.peric@gmail.com>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Timur Tabi [Mon, 20 Apr 2009 15:54:35 +0000 (10:54 -0500)]
powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCD
The ULI 1575 PCI quirk function for the Freescale MPC8610 HPCD was disabling
the SATA INTx interrupt, even when SATA support was enabled. This was safe,
because the SATA driver re-enabled it. But with commit
a5bfc471 ("ahci: drop
intx manipulation on msi enable"), the driver no longer does this, and so SATA
support on the 8610 HPCD is broken.
The original quirk function disabled INTx because it caused some other
interrupt problem during early development on this board, but no one remembers
any more what that problem was, and it doesn't seem to occur any more.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Anton Vorontsov [Sat, 18 Apr 2009 17:48:52 +0000 (21:48 +0400)]
fsl_rio: Pass the proper device to dma mapping routines
The driver should pass a device that specifies internal DMA ops, but
currently NULL pointer is passed, therefore following bug appears
during boot up:
------------[ cut here ]------------
Kernel BUG at
c0018a7c [verbose debug info unavailable]
Oops: Exception in kernel mode, sig: 5 [#1]
[...]
NIP [
c0018a7c] fsl_rio_doorbell_init+0x34/0x60
LR [
c0018a70] fsl_rio_doorbell_init+0x28/0x60
Call Trace:
[
ef82bda0] [
c0018a70] fsl_rio_doorbell_init+0x28/0x60 (unreliable)
[
ef82bdc0] [
c0019160] fsl_rio_setup+0x6b8/0x84c
[
ef82be20] [
c02d28ac] fsl_of_rio_rpn_probe+0x30/0x50
[
ef82be40] [
c0234f20] of_platform_device_probe+0x5c/0x84
[...]
---[ end trace
561bb236c800851f ]---
This patch fixes the issue.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Jean Delvare [Tue, 21 Apr 2009 19:47:22 +0000 (21:47 +0200)]
go7007: Convert to the new i2c device binding model
Move the go7007 driver away from the legacy i2c binding model, which
is going away really soon now.
The I2C addresses of the audio and video chips in s2250-board didn't
look quite right, apparently they were left-aligned values when Linux
wants right-aligned values, so I fixed them too.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Chris Mason [Tue, 21 Apr 2009 15:53:38 +0000 (11:53 -0400)]
Btrfs: fix btrfs fallocate oops and deadlock
Btrfs fallocate was incorrectly starting a transaction with a lock held
on the extent_io tree for the file, which could deadlock. Strictly
speaking it was using join_transaction which would be safe, but it is better
to move the transaction outside of the lock.
When preallocated extents are overwritten, btrfs_mark_buffer_dirty was
being called on an unlocked buffer. This was triggering an assertion and
oops because the lock is supposed to be held.
The bug was calling btrfs_mark_buffer_dirty on a leaf after btrfs_del_item had
been run. btrfs_del_item takes care of dirtying things, so the solution is a
to skip the btrfs_mark_buffer_dirty call in this case.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Linus Torvalds [Tue, 21 Apr 2009 15:27:30 +0000 (08:27 -0700)]
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: Fix page_mkwrite() return code
GFS2: Clear dirty bit at end of inode glock sync
Linus Torvalds [Tue, 21 Apr 2009 15:16:14 +0000 (08:16 -0700)]
Merge branch 'sh/for-2.6.30' of git://git./linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.30' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fix mmap2 for handling differing PAGE_SIZEs.
sh: sh7723: Don't default enable the RTC clock.
sh: sh7722: Don't default enable the RTC clock.
rtc: rtc-sh: clock framework support.
Linus Torvalds [Tue, 21 Apr 2009 14:56:17 +0000 (07:56 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
reiserfs: fix j_last_flush_trans_id type
fs: Mark get_filesystem_list() as __init function.
kill vfs_stat_fd / vfs_lstat_fd
Separate out common fstatat code into vfs_fstatat
ecryptfs: use memdup_user()
ncpfs: use memdup_user()
xfs: use memdup_user()
sysfs: use memdup_user()
btrfs: use memdup_user()
xattr: use memdup_user()
autofs4: use memchr() in invalid_string()
Documentation/filesystems: remove out of date reference to BKL being held
Fix i_mutex vs. readdir handling in nfsd
fs/compat_ioctl: fix build when !BLOCK
Fix autofs_expire()
No need for crossing to mountpoint in audit_tag_tree()
Safer nfsd_cross_mnt()
Touch all affected namespaces on propagation of mount
Fix AUTOFS_DEV_IOCTL_REQUESTER_CMD
Thomas Bogendoerfer [Tue, 21 Apr 2009 11:44:13 +0000 (13:44 +0200)]
Fix SYSCALL_ALIAS for older MIPS assembler
Older MIPS assembler don't support .set for defining aliases.
Using = works for old and new assembers.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Trond Myklebust [Mon, 20 Apr 2009 18:58:35 +0000 (14:58 -0400)]
NFS: Fix the XDR iovec calculation in nfs3_xdr_setaclargs
Commit
ae46141ff08f1965b17c531b571953c39ce8b9e2 (NFSv3: Fix posix ACL code)
introduces a bug in the calculation of the XDR header iovec. In the case
where we are inlining the acls, we need to adjust the length of the iovec
req->rq_svec, in addition to adjusting the total buffer length.
Tested-by: Leonardo Chiquitto <leonardo.lists@gmail.com>
Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Mundt [Tue, 21 Apr 2009 08:12:16 +0000 (17:12 +0900)]
Merge branch 'sh/stable-updates' into sh/for-2.6.30
Al Viro [Tue, 21 Apr 2009 03:29:41 +0000 (23:29 -0400)]
reiserfs: fix j_last_flush_trans_id type
Conversion in commit
600ed41675d8c384519d8f0b3c76afed39ef2f4b had missed
that one, but converted format from %lu to %u. As the result,
/proc/..../journal got buggered on 64bit boxen.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Tetsuo Handa [Thu, 9 Apr 2009 11:17:52 +0000 (20:17 +0900)]
fs: Mark get_filesystem_list() as __init function.
"int get_filesystem_list(char * buf)" is called by only
"static void __init get_fs_names(char *page)".
We can mark get_filesystem_list() as "__init".
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Christoph Hellwig [Wed, 8 Apr 2009 20:34:03 +0000 (16:34 -0400)]
kill vfs_stat_fd / vfs_lstat_fd
There's really no reason to keep vfs_stat_fd and vfs_lstat_fd with
Oleg's vfs_fstatat. Use vfs_fstatat for the few cases having the
directory fd, and switch all others to vfs_stat / vfs_lstat.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Oleg Drokin [Wed, 8 Apr 2009 16:05:42 +0000 (20:05 +0400)]
Separate out common fstatat code into vfs_fstatat
This is a version incorporating Christoph's suggestion.
Separate out common *fstatat functionality into a single function
instead of duplicating it all over the code.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Li Zefan [Wed, 8 Apr 2009 07:09:29 +0000 (15:09 +0800)]
ecryptfs: use memdup_user()
Remove open-coded memdup_user().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Li Zefan [Wed, 8 Apr 2009 07:08:53 +0000 (15:08 +0800)]
ncpfs: use memdup_user()
Remove open-coded memdup_user()
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Li Zefan [Wed, 8 Apr 2009 07:08:04 +0000 (15:08 +0800)]
xfs: use memdup_user()
Remove open-coded memdup_user()
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Li Zefan [Wed, 8 Apr 2009 07:07:30 +0000 (15:07 +0800)]
sysfs: use memdup_user()
Remove open-coded memdup_user().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Li Zefan [Wed, 8 Apr 2009 07:06:54 +0000 (15:06 +0800)]
btrfs: use memdup_user()
Remove open-coded memdup_user().
Note this changes some GFP_NOFS to GFP_KERNEL, since copy_from_user() may
cause pagefault, it's pointless to pass GFP_NOFS to kmalloc().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Li Zefan [Wed, 8 Apr 2009 07:06:12 +0000 (15:06 +0800)]
xattr: use memdup_user()
Remove open-coded memdup_user()
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 7 Apr 2009 15:12:46 +0000 (11:12 -0400)]
autofs4: use memchr() in invalid_string()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Adrian McMenamin [Tue, 21 Apr 2009 01:38:28 +0000 (18:38 -0700)]
Documentation/filesystems: remove out of date reference to BKL being held
Documentation/filesystems/vfs.txt incorrectly states that the kernel is
locked during the call to statfs (Documentation/filesystems/Locking
correctly says it is not). This patch removes the offending sentence.
remove reference to BKL being held in statfs
Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
David Woodhouse [Mon, 20 Apr 2009 22:18:37 +0000 (23:18 +0100)]
Fix i_mutex vs. readdir handling in nfsd
Commit
14f7dd63 ("Copy XFS readdir hack into nfsd code") introduced a
bug to generic code which had been extant for a long time in the XFS
version -- it started to call through into lookup_one_len() and hence
into the file systems' ->lookup() methods without i_mutex held on the
directory.
This patch fixes it by locking the directory's i_mutex again before
calling the filldir functions. The original deadlocks which commit
14f7dd63 was designed to avoid are still avoided, because they were due
to fs-internal locking, not i_mutex.
While we're at it, fix the return type of nfsd_buffered_readdir() which
should be a __be32 not an int -- it's an NFS errno, not a Linux errno.
And return nfserrno(-ENOMEM) when allocation fails, not just -ENOMEM.
Sparse would have caught that, if it wasn't so busy bitching about
__cold__.
Commit
05f4f678 ("nfsd4: don't do lookup within readdir in recovery
code") introduced a similar problem with calling lookup_one_len()
without i_mutex, which this patch also addresses. To fix that, it was
necessary to fix the called functions so that they expect i_mutex to be
held; that part was done by J. Bruce Fields.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Umm-I-can-live-with-that-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: J. R. Okajima <hooanon05@yahoo.co.jp>
Tested-by: J. Bruce Fields <bfields@citi.umich.edu>
LKML-Reference: <8036.
1237474444@jrobl>
Cc: stable@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Alexander Beregalov [Mon, 20 Apr 2009 08:23:02 +0000 (12:23 +0400)]
fs/compat_ioctl: fix build when !BLOCK
In file included from fs/compat_ioctl.c:61:
include/linux/loop.h:59: error: field 'lo_bio_list' has incomplete type
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 18 Apr 2009 15:19:26 +0000 (11:19 -0400)]
Fix autofs_expire()
mnt should remain the same for all iterations through the list;
as it is, if we have a busy mount, mnt follows into it and isn't
restored for the next iteration.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 18 Apr 2009 07:25:41 +0000 (03:25 -0400)]
No need for crossing to mountpoint in audit_tag_tree()
is_under() will DTRT anyway. And yes, is_subdir() behaviour
is intentional.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 18 Apr 2009 06:32:31 +0000 (02:32 -0400)]
Safer nfsd_cross_mnt()
AFAICS, we have a subtle bug there: if we have crossed mountpoint
*and* it got mount --move'd away, we'll be holding only one
reference to fs containing dentry - exp->ex_path.mnt. IOW, we
ought to dput() before exp_put().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 7 Apr 2009 16:15:39 +0000 (12:15 -0400)]
Touch all affected namespaces on propagation of mount
We shouldn't just touch the namespace of current process
Caught-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 7 Apr 2009 13:03:30 +0000 (09:03 -0400)]
Fix AUTOFS_DEV_IOCTL_REQUESTER_CMD
Missing conversion from kernel to userland dev_t; this sucker
breaks as soon as we get sufficiently many autofs mounts for
new_encode_dev(s_dev) != s_dev.
Note: this is the minimal fix.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Toshinobu Sugioka [Mon, 20 Apr 2009 22:34:53 +0000 (07:34 +0900)]
sh: Fix mmap2 for handling differing PAGE_SIZEs.
mmap2 uses a fixed page shift of 12, regardless of the PAGE_SIZE setting.
Fix up the mmap2 code to add some sanity checks on the mapping, and to
update pgoff accordingly.
Error handling bits based on
4280e3126f641898f0ed1a931645373d3489e2a6
("frv: fix mmap2 error handling").
Signed-off-by: Toshinobu Sugioka <sugioka@itonet.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Chris Mason [Mon, 20 Apr 2009 19:50:10 +0000 (15:50 -0400)]
Btrfs: use the right node in reada_for_balance
reada_for_balance was using the wrong index into the path node array,
so it wasn't reading the right blocks. We never directly used the
results of the read done by this function because the btree search is
started over at the end.
This fixes reada_for_balance to reada in the correct node and to
avoid searching past the last slot in the node. It also makes sure to
hold the parent lock while we are finding the nodes to read.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 20 Apr 2009 19:50:09 +0000 (15:50 -0400)]
Btrfs: fix oops on page->mapping->host during writepage
The extent_io writepage call updates the writepage index in the inode
as it makes progress. But, it was doing the update after unlocking the page,
which isn't legal because page->mapping can't be trusted once the page
is unlocked.
This lead to an oops, especially common with compression turned on. The
fix here is to update the writeback index before unlocking the page.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 20 Apr 2009 19:50:09 +0000 (15:50 -0400)]
Btrfs: add a priority queue to the async thread helpers
Btrfs is using WRITE_SYNC_PLUG to send down synchronous IOs with a
higher priority. But, the checksumming helper threads prevent it
from being fully effective.
There are two problems. First, a big queue of pending checksumming
will delay the synchronous IO behind other lower priority writes. Second,
the checksumming uses an ordered async work queue. The ordering makes sure
that IOs are sent to the block layer in the same order they are sent
to the checksumming threads. Usually this gives us less seeky IO.
But, when we start mixing IO priorities, the lower priority IO can delay
the higher priority IO.
This patch solves both problems by adding a high priority list to the async
helper threads, and a new btrfs_set_work_high_prio(), which is used
to make put a new async work item onto the higher priority list.
The ordering is still done on high priority IO, but all of the high
priority bios are ordered separately from the low priority bios. This
ordering is purely an IO optimization, it is not involved in data
or metadata integrity.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 20 Apr 2009 19:50:09 +0000 (15:50 -0400)]
Btrfs: use WRITE_SYNC for synchronous writes
Part of reducing fsync/O_SYNC/O_DIRECT latencies is using WRITE_SYNC for
writes we plan on waiting on in the near future. This patch
mirrors recent changes in other filesystems and the generic code to
use WRITE_SYNC when WB_SYNC_ALL is passed and to use WRITE_SYNC for
other latency critical writes.
Btrfs uses async worker threads for checksumming before the write is done,
and then again to actually submit the bios. The bio submission code just
runs a per-device list of bios that need to be sent down the pipe.
This list is split into low priority and high priority lists so the
WRITE_SYNC IO happens first.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Linus Torvalds [Mon, 20 Apr 2009 19:34:36 +0000 (12:34 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] fix allmodconfig compilation breakage.
[IA64] smp_flush_tlb_mm() should only send IPI's to cpus in cpu_vm_mask
[IA64] export smp_send_reschedule
Ilpo Järvinen [Mon, 20 Apr 2009 18:18:43 +0000 (12:18 -0600)]
powerpc: Fix of_node_put() exit path in of_irq_map_one()
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Grant Likely [Mon, 20 Apr 2009 17:33:12 +0000 (11:33 -0600)]
powerpc/5200: defconfig updates
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Isaku Yamahata [Sat, 18 Apr 2009 03:15:23 +0000 (12:15 +0900)]
[IA64] fix allmodconfig compilation breakage.
This patch fixes the following compilation error caused by recursive
inclusion of kernel.h which defines BUILD_BUG_ON().
In this case, the case it catches will be caught by the case
CONFIG_PARAVIRT=n, so removing it would not hurt compile time check
very much. So fix the breakage by removing it.
CC arch/ia64/kernel/asm-offsets.s
In file included from include/linux/bitops.h:17,
from include/linux/kernel.h:15,
from include/linux/sched.h:52,
from arch/ia64/kernel/asm-offsets.c:9:
arch/ia64/include/asm/bitops.h: In function 'set_bit':
arch/ia64/include/asm/bitops.h:47: error: implicit declaration of function 'BUILD_BUG_ON'
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Linus Torvalds [Mon, 20 Apr 2009 15:43:06 +0000 (08:43 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM/Suspend: Introduce two new platform callbacks to avoid breakage
Linus Torvalds [Mon, 20 Apr 2009 15:42:48 +0000 (08:42 -0700)]
Merge branch 'drm-linus' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
agp: zero pages before sending to userspace
drm: check for minor master before allowing drop master.
drm: set/clear is_master when master changed
drm: clean dirty memory after device release
drm: count reaches -1
Linus Torvalds [Mon, 20 Apr 2009 15:37:37 +0000 (08:37 -0700)]
Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
md: support bitmaps on RAID10 arrays larger then 2 terabytes
md: update sync_completed and reshape_position even more often.
md: improve usefulness and accuracy of sysfs file md/sync_completed.
md: allow setting newly added device to 'in_sync' via sysfs.
md: tiny md.h cleanups
David Howells [Mon, 20 Apr 2009 14:46:45 +0000 (15:46 +0100)]
FS-Cache: Add MAINTAINERS record for FS-Cache and CacheFiles
Add MAINTAINERS record for FS-Cache and CacheFiles.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Mon, 20 Apr 2009 11:46:24 +0000 (12:46 +0100)]
FRV: Don't attempt to #include <linux/blk.h> as it doesn't exist
Stop the FRV arch from attempting to #include <linux/blk.h> as it doesn't
exist.
Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kay Sievers [Sat, 18 Apr 2009 22:05:45 +0000 (15:05 -0700)]
driver: dont update dev_name via device_add path
notice one system /proc/iomem some entries missed the name for pci_devices
it turns that dev->dev.kobj name is changed after device_add.
for pci code: via acpi_pci_root_driver.ops.add (aka acpi_pci_root_add)
==> pci_acpi_scan_root is used to scan pci bus/device, and at the same
time we read the resource for pci_dev in the pci_read_bases, we have
res->name = pci_name(pci_dev); pci_name is calling dev_name.
later via acpi_pci_root_driver.ops.start (aka acpi_pci_root_start) ==>
pci_bus_add_device to add all pci_dev in kobj tree. pci_bus_add_device
will call device_add.
actually in device_add
/* first, register with generic layer. */
error = kobject_add(&dev->kobj, dev->kobj.parent, "%s", dev_name(dev));
if (error)
goto Error;
will get one new name for that kobj, old name is freed.
[Impact: fix corrupted names in /proc/iomem ]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Steven Whitehouse [Mon, 20 Apr 2009 08:45:54 +0000 (09:45 +0100)]
GFS2: Fix page_mkwrite() return code
This allows for the possibility of returning VM_FAULT_OOM as
well as VM_FAULT_SIGBUS. This ensures that the correct action
is taken.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Steven Whitehouse [Mon, 20 Apr 2009 07:58:45 +0000 (08:58 +0100)]
GFS2: Clear dirty bit at end of inode glock sync
The dirty bit can get set during the inode glock sync. Its too
complicated to change that at the moment, so this is the quick
fix - to clear the bit again at the end of the function.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
NeilBrown [Mon, 20 Apr 2009 01:50:24 +0000 (11:50 +1000)]
md: support bitmaps on RAID10 arrays larger then 2 terabytes
.. and other arrays with components larger than 2 terabytes.
We use a "long" rather than a "sector_t" in part of the bitmap
size calculations, which is sad.
Reported-by: "Mario 'BitKoenig' Holbe" <Mario.Holbe@TU-Ilmenau.DE>
Signed-off-by: NeilBrown <neilb@suse.de>
Shaohua Li [Mon, 20 Apr 2009 00:08:35 +0000 (10:08 +1000)]
agp: zero pages before sending to userspace
AGP pages might be mapped into userspace finally, so the pages should be
set to zero before userspace can use it. Otherwise there is potential
information leakage.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Sun, 19 Apr 2009 23:32:50 +0000 (09:32 +1000)]
drm: check for minor master before allowing drop
When fast user switching a lot eventually we get to the point,
where we were checking for the wrong thing in this function.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Jonas Bonn [Thu, 16 Apr 2009 07:00:02 +0000 (09:00 +0200)]
drm: set/clear is_master when master changed
The variable is_master is being used to track the drm_file that is currently
master, so its value needs to be updated accordingly when the master is
changed.
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ma Ling [Thu, 16 Apr 2009 09:51:25 +0000 (17:51 +0800)]
drm: clean dirty memory after device release
In current code we register/unregister connector object by
drm_sysfs_connector_add/remove function.
However under some cases, we need to dynamically register or unregister device
multiple times, so we have to go through register -> unregister ->register
routine.
Because after device_unregister function our memory is dirty, we need to do
clean operation in order to re-register the device, otherwise the system
will crash. The patch intends to clean device after device release.
Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Roel Kluin [Thu, 16 Apr 2009 20:57:46 +0000 (22:57 +0200)]
drm: count reaches -1
With a postfix decrement in the test count will reach -1 rather than 0,
subsequent tests fail.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
projects / platform / upstream / kernel-adaptation-pc.git / log