Eric Miao [Fri, 6 Feb 2009 08:49:23 +0000 (16:49 +0800)]
[ARM] pxa: make ads7846 on corgi and spitz to sync on HSYNC
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Philipp Zabel [Fri, 17 Apr 2009 09:37:10 +0000 (11:37 +0200)]
[ARM] pxa: remove unused CPU_FREQ_PXA Kconfig symbol
cpufreq drivers for pxa2xx/3xx are now built-in automatically as soon as
CPU_FREQ is enabled.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Guennadi Liakhovetski [Thu, 16 Apr 2009 09:23:08 +0000 (11:23 +0200)]
[ARM] pxa: remove duplicate select statements from Kconfig
ARCH_PXA selects HAVE_CLK and COMMON_CLKDEV twice in arch/arm/Kconfig.
Remove the second entry.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Eric Miao [Tue, 21 Apr 2009 06:39:07 +0000 (14:39 +0800)]
[ARM] pxa: fix issue of muxed GPIO irq_chip functions touching non-muxed GPIOs
pxa_gpio_irq_type() and pxa_unmask_muxed_gpio() will touch non-muxed GPIOs
(0 and 1 on PXA2xx/PXA3xx) bits in GRERx and GFERx, which is incorrect.
Actually, only those bits should get updated if the corresponding bits are
set in c->irq_mask as well. Fix this by updating only those relevant bits.
Reported-and-tested-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Linus Torvalds [Fri, 24 Apr 2009 15:36:41 +0000 (08:36 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5460/1: Orion: reduce namespace pollution
[ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config
[ARM] 5457/1: mach-imx gpio buildfix
[ARM] 5456/1: add sys_preadv and sys_pwritev
[ARM] pxa/pcm990: start external GPIOs immediately after built-in ones
[ARM] pxa/palm27x: General fix for Palm27x aSoC driver
[ARM] pxa/mioa701: use GPIO95 as AC97 reset line
[ARM] pxa: merge AC97 platform data structures
[ARM] pxa/magician: remove un-necessary #include of pxa-regs.h and hardware.h
Linus Torvalds [Fri, 24 Apr 2009 15:36:06 +0000 (08:36 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: pwc : do not pass stack allocated buffers to USB core.
USB: otg: Fix bug on remove path without transceiver
USB: correct error handling in cdc-wdm
USB: removal of tty->low_latency hack dating back to the old serial code
USB: serial: sierra driver bug fix for composite interface
USB: gadget: omap_udc uses platform_driver_probe()
USB: ci13xxx_udc: fix build error
USB: musb: Prevent multiple includes of musb.h
USB: pass mem_flags to dma_alloc_coherent
USB: g_file_storage: fix use-after-free bug when closing files
USB: ehci-sched.c: EHCI SITD scheduling bugfix
USB: fix mos7840 problem with minor numbers
USB: mos7840: add new device id
USB: musb: fix build when !CONFIG_PM
USB: musb: Remove my email address from few musb related drivers
USB: Gadget: MIPS CI13xxx UDC bugfixes
USB: Unusual Device support for Gold MP3 Player Energy
USB: serial: fix lifetime and locking problems
Linus Torvalds [Fri, 24 Apr 2009 15:32:44 +0000 (08:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
eCryptfs: Larger buffer for encrypted symlink targets
eCryptfs: Lock lower directory inode mutex during lookup
eCryptfs: Remove ecryptfs_unlink_sigs warnings
eCryptfs: Fix data corruption when using ecryptfs_passthrough
eCryptfs: Print FNEK sig properly in /proc/mounts
eCryptfs: NULL pointer dereference in ecryptfs_send_miscdev()
eCryptfs: Copy lower inode attrs before dentry instantiation
Linus Torvalds [Fri, 24 Apr 2009 15:32:23 +0000 (08:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Update defconfigs for 2.6.30-rc3
m68k,m68knommu: Wire up preadv and pwritev
scsi: a4000 - Correct driver unregistration in case of failure
Linus Torvalds [Fri, 24 Apr 2009 15:28:27 +0000 (08:28 -0700)]
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] update default configuration.
[S390] omit frame pointers on s390 when possible
[S390] Use tape_generic_offline directly.
[S390] /proc/stat idle field for idle cpus
[S390] appldata: avoid deadlock with appldata_mem
[S390] ipl: fix compile breakage
Linus Torvalds [Fri, 24 Apr 2009 15:27:02 +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: Ensure that the inode goal block settings are updated
GFS2: Fix bug in block allocation
bitops: Add __ffs64 bitop
Linus Torvalds [Fri, 24 Apr 2009 15:26:01 +0000 (08:26 -0700)]
Merge branch 'kvm-updates/2.6.30' of git://git./virt/kvm/kvm
* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Unregister cpufreq notifier on unload
KVM: x86: release time_page on vcpu destruction
KVM: Fix overlapping check for memory slots
KVM: MMU: disable global page optimization
KVM: ia64: fix locking order entering guest
KVM: MMU: Fix off-by-one calculating large page count
Linus Torvalds [Fri, 24 Apr 2009 15:16:05 +0000 (08:16 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bart/ide-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
MAINTAINERS: update IDE entry
palm_bk3710: palm_bk3710_udmatimings[] CodingStyle fixup
palm_bk3710: those registers/bitfields don't exist
mediabay: fix build for CONFIG_BLOCK=n
ide: Stop disks on reboot for laptop which cuts power
ide-cd: fix kernel crash on hppa regression
palm_bk3710: UDMA performance fix
Linus Torvalds [Fri, 24 Apr 2009 15:15:25 +0000 (08:15 -0700)]
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:
ALSA: hda - Add quirk for Packard Bell RS65
[ALSA] intel8x0: another attempt to fix ac97_clock measure routine
[ALSA] ac97_codec: increase timeout for analog subsections
ALSA: hda - Add quirks for Realtek codecs
ALSA: hda - Fix alc662_init_verbs
ALSA: keywest: Convert to new-style i2c driver
ALSA: AOA: Convert onyx and tas codecs to new-style i2c drivers
ALSA: Atiixp: Add SSID for mute_led quirk (unknown HP model)
ALSA: us122l: add snd_us122l_free()
ASoC: Fix warning in wm9705
ASoC: OMAP: Update contact addresses
ASoC: pxa-ssp: Don't use SSCR0_SerClkDiv and SSCR0_SCR
ALSA: us122l: Fix signedness in comparisions
Alan Cox [Wed, 22 Apr 2009 14:03:15 +0000 (15:03 +0100)]
radio_si470x: Fix free memory corruption
The release path for a disconnected device frees the object then unlocks
the mutex in the freed object...
Found by Dan Carpenter using Smatch
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Niels de Vos [Wed, 22 Apr 2009 14:02:44 +0000 (15:02 +0100)]
serial: remove contact data
Remove my name and emailaddress from note in the source. Wincor Nixdorf
only has some ITE-chips on their mainboards, other chips are not
available for me for testing.
Signed-off-by: Niels de Vos <niels.devos@wincor-nixdorf.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Wed, 22 Apr 2009 14:02:23 +0000 (15:02 +0100)]
cafe_nand: Fix warning
Wrong types on IRQ handler
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 24 Apr 2009 14:48:24 +0000 (07:48 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cfq-iosched: cache prio_tree root in cfqq->p_root
cfq-iosched: fix bug with aliased request and cooperation detection
cfq-iosched: clear ->prio_trees[] on cfqd alloc
block: fix intermittent dm timeout based oops
umem: fix request_queue lock warning
block: simplify I/O stat accounting
pktcdvd.h should include mempool.h
cfq-iosched: use the default seek distance when there aren't enough seek samples
cfq-iosched: make seek_mean converge more quickly
block: make blk_abort_queue() ignore non-request based devices
block: include empty disks in /proc/diskstats
bio: use bio_kmalloc() in copy/map functions
bio: fix bio_kmalloc()
block: fix queue bounce limit setting
block: fix SG_IO vector request data length handling
scatterlist: make sure sg_miter_next() doesn't return 0 sized mappings
David Howells [Wed, 22 Apr 2009 11:10:07 +0000 (12:10 +0100)]
MN10300: Update the ASB2303 defconfig
Update the defconfig for the ASB2303 evaluation board.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jonathan Corbet [Wed, 22 Apr 2009 11:01:49 +0000 (12:01 +0100)]
Delete slow-work timers properly
Slow-work appears to delete its timer as soon as the first user
unregisters, even though other users could be active. At the same time, it
never seems to delete slow_work_oom_timer. Arrange for both to happen in
the shutdown path.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 24 Apr 2009 14:46:51 +0000 (07:46 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits)
netfilter: ctnetlink: fix gcc warning during compilation
net/netrom: Fix socket locking
netlabel: Always remove the correct address selector
ucc_geth.c: Fix upsmr setting in RMII mode
8139too: fix HW initial flow
af_iucv: Fix race when queuing incoming iucv messages
af_iucv: Test additional sk states in iucv_sock_shutdown
af_iucv: Reject incoming msgs if RECV_SHUTDOWN is set
af_iucv: fix oops in iucv_sock_recvmsg() for MSG_PEEK flag
af_iucv: consider state IUCV_CLOSING when closing a socket
iwlwifi: DMA fixes
iwlwifi: add debugging for TX path
mwl8: fix build warning.
mac80211: fix alignment calculation bug
mac80211: do not print WARN if config interface
iwl3945: use cancel_delayed_work_sync to cancel rfkill_poll
iwlwifi: fix EEPROM validation mask to include OTP only devices
atmel: fix netdev ops conversion
pcnet_cs: add cis(firmware) of the Allied Telesis LA-PCM
mlx4_en: Fix cleanup if workqueue create in mlx4_en_add() fails
...
Linus Torvalds [Fri, 24 Apr 2009 14:45:52 +0000 (07:45 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Fix bus type probing for ESP and LE devices.
sparc32: Update defconfig.
sparc64: Update defconfig.
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>
Jens Axboe [Thu, 23 Apr 2009 10:19:38 +0000 (12:19 +0200)]
cfq-iosched: cache prio_tree root in cfqq->p_root
Currently we look it up from ->ioprio, but ->ioprio can change if
either the process gets its IO priority changed explicitly, or if
cfq decides to temporarily boost it. So if we are unlucky, we can
end up attempting to remove a node from a different rbtree root than
where it was added.
Fix this by using ->org_ioprio as the prio_tree index, since that
will only change for explicit IO priority settings (not for a boost).
Additionally cache the rbtree root inside the cfqq, then we don't have
to add code to reinsert the cfqq in the prio_tree if IO priority changes.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Thu, 23 Apr 2009 10:14:56 +0000 (12:14 +0200)]
cfq-iosched: fix bug with aliased request and cooperation detection
cfq_prio_tree_lookup() should return the direct match, yet it always
returns zero. Fix that.
cfq_prio_tree_add() assumes that we don't get a direct match, while
it is very possible that we do. Using O_DIRECT, you can have different
cfqq with matching requests, since you don't have the page cache
to serialize things for you. Fix this bug by only adding the cfqq if
there isn't an existing match.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Thu, 23 Apr 2009 10:13:27 +0000 (12:13 +0200)]
cfq-iosched: clear ->prio_trees[] on cfqd alloc
Not strictly needed, but we should make it clear that we init the
rbtree roots here.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Hannes Reinecke [Thu, 23 Apr 2009 08:32:59 +0000 (10:32 +0200)]
block: fix intermittent dm timeout based oops
Very rarely under stress testing of dm, oopses are occuring as
something tampers with an old stack frame. This has been traced back
to blk_abort_queue() leaving a timeout_list pointing to the stack.
The reason is that sometimes blk_abort_request() won't delete the
timer (if the request is marked as complete but before the timer has
been removed, a small race window). Fix this by splicing back from
the ususally empty list to the q->timeout_list.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Sage Weil [Thu, 23 Apr 2009 06:37:58 +0000 (08:37 +0200)]
umem: fix request_queue lock warning
The umem driver issues two warnings on boot, due to blk_plug_device() and
blk_remove_plug() being called without q->queue_lock held. Starting with
e48ec690 (block: extend queue_flag bitops), the queue_flag_* functions
warn if q->queue_lock doesn't appear to be locked. In fact, q->queue_lock
is NULL (though that apparently isn't otherwise a problem as the driver is
using card->lock for everything).
Although blk_init_queue() with take a request_fn_proc and spinlock_t*,
there isn't a corresponding init helper that takes a make_request_fn.
Setting queue_lock to &card->lock explicitly seems to work fine for me.
The warning goes away and the device appears to behave.
[ 1.531881] v2.3 : Micro Memory(tm) PCI memory board block driver
[ 1.538136] umem 0000:02:01.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[ 1.545018] umem 0000:02:01.0: Micro Memory(tm) controller found (PCI Mem Module (Battery Backup))
[ 1.554176] umem 0000:02:01.0: CSR 0xfc9ffc00 -> 0xffffc200013d0c00 (0x100)
[ 1.561279] umem 0000:02:01.0: Size
1048576 KB, Battery 1 Disabled (FAILURE), Battery 2 Disabled (FAILURE)
[ 1.571114] umem 0000:02:01.0: Window size
16777216 bytes, IRQ 20
[ 1.577304] umem 0000:02:01.0: memory NOT initialized. Consider over-writing whole device.
[ 1.585989] umema:<4>------------[ cut here ]------------
[ 1.591775] WARNING: at include/linux/blkdev.h:492 blk_plug_device+0x6d/0x106()
[ 1.592025] Hardware name: H8SSL
[ 1.592025] Modules linked in:
[ 1.592025] Pid: 1, comm: swapper Not tainted 2.6.29 #8
[ 1.592025] Call Trace:
[ 1.592025] [<
ffffffff8023c994>] warn_slowpath+0xd3/0xf2
[ 1.592025] [<
ffffffff8025a5b5>] ? save_trace+0x3f/0x9b
[ 1.592025] [<
ffffffff8025a68b>] ? add_lock_to_list+0x7a/0xba
[ 1.592025] [<
ffffffff8025e609>] ? validate_chain+0xb3b/0xce8
[ 1.592025] [<
ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<
ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<
ffffffff8025ef04>] ? __lock_acquire+0x74e/0x7b9
[ 1.592025] [<
ffffffff8025a70e>] ? get_lock_stats+0x34/0x5e
[ 1.592025] [<
ffffffff8025a746>] ? put_lock_stats+0xe/0x27
[ 1.592025] [<
ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<
ffffffff803ad165>] blk_plug_device+0x6d/0x106
[ 1.592025] [<
ffffffff80441575>] mm_make_request+0x46/0x59
[ 1.592025] [<
ffffffff803ac2d9>] generic_make_request+0x335/0x3cf
[ 1.592025] [<
ffffffff8027fcc7>] ? mempool_alloc_slab+0x11/0x13
[ 1.592025] [<
ffffffff8027fdce>] ? mempool_alloc+0x45/0x101
[ 1.592025] [<
ffffffff8025a746>] ? put_lock_stats+0xe/0x27
[ 1.592025] [<
ffffffff803adda5>] submit_bio+0x10a/0x119
[ 1.592025] [<
ffffffff802c8d00>] submit_bh+0xe5/0x109
[ 1.592025] [<
ffffffff802cbf43>] block_read_full_page+0x2aa/0x2cb
[ 1.592025] [<
ffffffff802cf4c4>] ? blkdev_get_block+0x0/0x4c
[ 1.592025] [<
ffffffff805c90a8>] ? _spin_unlock_irq+0x36/0x51
[ 1.592025] [<
ffffffff80286836>] ? __lru_cache_add+0x92/0xb2
[ 1.592025] [<
ffffffff802cf008>] blkdev_readpage+0x13/0x15
[ 1.592025] [<
ffffffff8027de06>] read_cache_page_async+0x90/0x134
[ 1.592025] [<
ffffffff802ceff5>] ? blkdev_readpage+0x0/0x15
[ 1.592025] [<
ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.592025] [<
ffffffff8027deb8>] read_cache_page+0xe/0x45
[ 1.592025] [<
ffffffff802f5170>] read_dev_sector+0x2e/0x93
[ 1.592025] [<
ffffffff802f5f44>] adfspart_check_ICS+0x28/0x16c
[ 1.592025] [<
ffffffff8025d427>] ? trace_hardirqs_on+0xd/0xf
[ 1.592025] [<
ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.592025] [<
ffffffff802f59c5>] rescan_partitions+0x168/0x2fb
[ 1.592025] [<
ffffffff802ceae9>] __blkdev_get+0x259/0x336
[ 1.592025] [<
ffffffff803ca1e2>] ? kobject_put+0x47/0x4b
[ 1.592025] [<
ffffffff802cebd1>] blkdev_get+0xb/0xd
[ 1.592025] [<
ffffffff802f5773>] register_disk+0xc4/0x12b
[ 1.592025] [<
ffffffff803b2a7b>] add_disk+0xc3/0x12d
[ 1.592025] [<
ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.592025] [<
ffffffff808a1e73>] mm_init+0x129/0x1a5
[ 1.592025] [<
ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.592025] [<
ffffffff80209056>] _stext+0x56/0x130
[ 1.592025] [<
ffffffff80274932>] ? register_irq_proc+0xae/0xca
[ 1.592025] [<
ffffffff802f0000>] ? proc_pid_lookup+0xb4/0x18b
[ 1.592025] [<
ffffffff8087f975>] kernel_init+0x132/0x18b
[ 1.592025] [<
ffffffff8020d17a>] child_rip+0xa/0x20
[ 1.592025] [<
ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.592025] [<
ffffffff8087f843>] ? kernel_init+0x0/0x18b
[ 1.592025] [<
ffffffff8020d170>] ? child_rip+0x0/0x20
[ 1.592025] ---[ end trace
7150b3b86da74e1e ]---
[ 1.889858] ------------[ cut here ]------------[ve_plug+0x5f/0x91()
[ 1.893848] Hardware name: H8SSL
[ 1.893848] Modules linked in:
[ 1.893848] Pid: 1, comm: swapper Tainted: G W 2.6.29 #8
[ 1.893848] Call Trace:
[ 1.893848] [<
ffffffff8023c994>] warn_slowpath+0xd3/0xf2
[ 1.893848] [<
ffffffff805c8411>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 1.893848] [<
ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.893848] [<
ffffffff80254245>] ? __atomic_notifier_call_chain+0x0/0xb2
[ 1.893848] [<
ffffffff805c90a3>] ? _spin_unlock_irq+0x31/0x51
[ 1.893848] [<
ffffffff805c90bf>] ? _spin_unlock_irq+0x4d/0x51
[ 1.893848] [<
ffffffff8044157d>] ? mm_make_request+0x4e/0x59
[ 1.893848] [<
ffffffff8025a70e>] ? get_lock_stats+0x34/0x5e
[ 1.893848] [<
ffffffff8025a75d>] ? put_lock_stats+0x25/0x27
[ 1.893848] [<
ffffffff80441504>] ? mm_unplug_device+0x25/0x50
[ 1.893848] [<
ffffffff803acf23>] blk_remove_plug+0x5f/0x91
[ 1.893848] [<
ffffffff8044150f>] mm_unplug_device+0x30/0x50
[ 1.893848] [<
ffffffff803ab74a>] blk_unplug+0x78/0x7d
[ 1.893848] [<
ffffffff803ab75c>] blk_backing_dev_unplug+0xd/0xf
[ 1.893848] [<
ffffffff802c853c>] block_sync_page+0x4a/0x4c
[ 1.893848] [<
ffffffff8027da1c>] sync_page+0x44/0x4d
[ 1.893848] [<
ffffffff805c66fd>] __wait_on_bit_lock+0x42/0x8a
[ 1.893848] [<
ffffffff8027d9d8>] ? sync_page+0x0/0x4d
[ 1.893848] [<
ffffffff8027d9c4>] __lock_page+0x64/0x6b
[ 1.893848] [<
ffffffff802508db>] ? wake_bit_function+0x0/0x2a
[ 1.893848] [<
ffffffff8027de4a>] read_cache_page_async+0xd4/0x134
[ 1.893848] [<
ffffffff802ceff5>] ? blkdev_readpage+0x0/0x15
[ 1.893848] [<
ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.893848] [<
ffffffff8027deb8>] read_cache_page+0xe/0x45
[ 1.893848] [<
ffffffff802f5170>] read_dev_sector+0x2e/0x93
[ 1.893848] [<
ffffffff802f5f44>] adfspart_check_ICS+0x28/0x16c
[ 1.893848] [<
ffffffff8025d427>] ? trace_hardirqs_on+0xd/0xf
[ 1.893848] [<
ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.893848] [<
ffffffff802f59c5>] rescan_partitions+0x168/0x2fb
[ 1.893848] [<
ffffffff802ceae9>] __blkdev_get+0x259/0x336
[ 1.893848] [<
ffffffff803ca1e2>] ? kobject_put+0x47/0x4b
[ 1.893848] [<
ffffffff802cebd1>] blkdev_get+0xb/0xd
[ 1.893848] [<
ffffffff802f5773>] register_disk+0xc4/0x12b
[ 1.893848] [<
ffffffff803b2a7b>] add_disk+0xc3/0x12d
[ 1.893848] [<
ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.893848] [<
ffffffff808a1e73>] mm_init+0x129/0x1a5
[ 1.893848] [<
ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.893848] [<
ffffffff80209056>] _stext+0x56/0x130
[ 1.893848] [<
ffffffff80274932>] ? register_irq_proc+0xae/0xca
[ 1.893848] [<
ffffffff802f0000>] ? proc_pid_lookup+0xb4/0x18b
[ 1.893848] [<
ffffffff8087f975>] kernel_init+0x132/0x18b
[ 1.893848] [<
ffffffff8020d17a>] child_rip+0xa/0x20
[ 1.893848] [<
ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.893848] [<
ffffffff8087f843>] ? kernel_init+0x0/0x18b
[ 1.893848] [<
ffffffff8020d170>] ? child_rip+0x0/0x20
[ 1.893848] ---[ end trace
7150b3b86da74e1f ]---
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jerome Marchand [Wed, 22 Apr 2009 12:01:49 +0000 (14:01 +0200)]
block: simplify I/O stat accounting
This simplifies I/O stat accounting switching code and separates it
completely from I/O scheduler switch code.
Requests are accounted according to the state of their request queue
at the time of the request allocation. There is no need anymore to
flush the request queue when switching I/O accounting state.
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Alexander Beregalov [Tue, 21 Apr 2009 07:33:14 +0000 (09:33 +0200)]
pktcdvd.h should include mempool.h
Fix this build error:
In file included from fs/compat_ioctl.c:104:
include/linux/pktcdvd.h:285: error: expected specifier-qualifier-list before 'mempool_t'
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Nicolas Pitre [Wed, 22 Apr 2009 19:08:17 +0000 (20:08 +0100)]
[ARM] 5460/1: Orion: reduce namespace pollution
Symbols like SOFT_RESET are way too generic to be exported at large.
To avoid this, let's move the mbus bridge register defines into a
separate file and include it where needed. This affects mach-kirkwood,
mach-loki, mach-mv78xx0 and mach-orion5x simultaneously as they all
share code in plat-orion which relies on those defines.
Some other defines have been moved to narrower scopes, or simply deleted
when they had no user.
This fixes compilation problem with mpt2sas on the above listed
platforms.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dmitry Baryshkov [Mon, 20 Apr 2009 16:48:28 +0000 (17:48 +0100)]
[ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config
Check if we really have Scoop config, otherwice we can get a nice Oops
during probe.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Martin Fuzzey [Tue, 21 Apr 2009 19:48:09 +0000 (21:48 +0200)]
USB: pwc : do not pass stack allocated buffers to USB core.
This is causes problems on platforms that have alignment requirements
for DMA transfers.
Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Robert Jarzmik [Wed, 22 Apr 2009 03:33:10 +0000 (20:33 -0700)]
USB: otg: Fix bug on remove path without transceiver
In the case where a gadget driver is removed while no
transceiver was found at probe time, a bug in
otg_put_transceiver() will trigger.
Provide symetric calls for otg_get_transceiver() and
otg_put_transceiver(), wherever a transceiver was found or
not.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Mon, 20 Apr 2009 15:24:49 +0000 (17:24 +0200)]
USB: correct error handling in cdc-wdm
This patch to cdc-wdm
- checks for partial extra descriptors
- fixes a leak in the error case of probe
- checks for an exact number of endpoints
- adds a clarifying comment
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Mon, 20 Apr 2009 15:28:53 +0000 (17:28 +0200)]
USB: removal of tty->low_latency hack dating back to the old serial code
This removes tty->low_latency from all USB serial drivers that push
data into the tty layer at hard interrupt context. It's no longer needed
and actually harmful.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Elina Pasheva [Wed, 22 Apr 2009 00:54:42 +0000 (17:54 -0700)]
USB: serial: sierra driver bug fix for composite interface
This patch fixes a problem in sierra_send_setup() function when
composite devices are used. One should not be sending ACM commands to
interfaces that are OBEX. Doing this causes an apparent failure as the
ACM command has to time out before the interface can start being used.
Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Thu, 16 Apr 2009 20:51:46 +0000 (13:51 -0700)]
USB: gadget: omap_udc uses platform_driver_probe()
We now have a more correct solution for shrinking runtime driver
footprints than just marking probe() as __init ... use it.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Matthias Kaehlcke [Wed, 15 Apr 2009 20:28:36 +0000 (22:28 +0200)]
USB: ci13xxx_udc: fix build error
Fix build error in the MIPS USB IP core family device controller driver.
The driver calls udelay() without including linux/delay.h
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mark A. Greer [Wed, 22 Apr 2009 03:52:54 +0000 (20:52 -0700)]
USB: musb: Prevent multiple includes of musb.h
Add #ifndef to musb header file to prevent multiple inclusions.
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johannes Berg [Sat, 18 Apr 2009 09:00:39 +0000 (11:00 +0200)]
USB: pass mem_flags to dma_alloc_coherent
When I want to use my webcam, I get:
vvvvvvv
cheese: page allocation failure. order:5, mode:0x8004
Pid: 8100, comm: cheese Not tainted 2.6.30-rc2-wl-dirty #102
Call Trace:
[<
ffffffff802c5d8e>] __alloc_pages_internal+0x3fe/0x520
[<
ffffffff80210a20>] dma_generic_alloc_coherent+0x90/0x120
[<
ffffffffa001c91e>] hcd_buffer_alloc+0xee/0x130 [usbcore]
[<
ffffffffa000d52d>] usb_buffer_alloc+0x2d/0x40 [usbcore]
[<
ffffffffa0160e14>] uvc_alloc_urb_buffers+0x84/0x140 [uvcvideo]
[<
ffffffffa0160ff6>] uvc_init_video+0x126/0x400 [uvcvideo]
[...]
Oddly, I remembered fixing this and putting in __GFP_NOWARN
because uvcvideo retries a smaller allocation. However, the
allocation function doesn't pass the gfp flags through to
dma_alloc_coherent so we still get the warning!
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Thu, 16 Apr 2009 19:37:28 +0000 (15:37 -0400)]
USB: g_file_storage: fix use-after-free bug when closing files
This patch (as1231) fixes a use-after-free bug in g_file_storage. A
device's name may not be available after the device is unregistered,
even if the device structure itself is still allocated. Since
close_backing_file() prints a LUN's name for debugging, it shouldn't
be called after the LUN has been unregistered.
That whole area needed to be cleaned up; the backing files were
getting closed in a couple of different places. The patch fixes
things so that they get closed in just one place, as part of the
unbind procedure, immediately before the LUN is unregistered.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Streetman [Tue, 21 Apr 2009 17:37:12 +0000 (13:37 -0400)]
USB: ehci-sched.c: EHCI SITD scheduling bugfix
Without this patch, the driver won't check that the last fully-occupied
uframe for a new split transaction was vacant beforehand. This can
lead to a situation in which the first 188 bytes of a 192-byte
isochronous transfer are scheduled in the same uframe as an existing
interrupt transfer. The resulting schedule looks like this:
uframe 0: 188-byte isoc-OUT SSPLIT, 8-byte int-IN SSPLIT
uframe 1: 4-byte isoc-OUT SSPLIT
The SSPLITs are intermingled, causing an error in the downstream hub's
TT.
If you are having problems with devices or hub ports resetting, or failed
interrupt transfers, when you start using a USB audio or video (Isochronous)
device, this patch may help.
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Reported-by: Kung James <kong1191@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Tony Cook [Sat, 18 Apr 2009 13:12:18 +0000 (22:42 +0930)]
USB: fix mos7840 problem with minor numbers
This patch fixes a problem with any mos7840 device where the use of the field "minor" before it is
initialised results in all the devices being overlaid in memory (minor = 0 for all instances)
Contributed by: Phillip Branch
Signed-off-by: Tony Cook <tony-cook@bigpond.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Cook [Sat, 18 Apr 2009 13:12:18 +0000 (22:42 +0930)]
USB: mos7840: add new device id
add USB ids for the mos7840 based ATEN International serial devices.
Contributed by: Phillip Branch
Signed-off-by: Tony Cook <tony-cook@bigpond.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alexander Beregalov [Fri, 17 Apr 2009 11:19:14 +0000 (15:19 +0400)]
USB: musb: fix build when !CONFIG_PM
Fix this build error when CONFIG_PM is not set:
drivers/usb/musb/musb_core.c:2232: error: 'musb_resume_early' undeclared here
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jarkko Nikula [Fri, 17 Apr 2009 10:52:00 +0000 (13:52 +0300)]
USB: musb: Remove my email address from few musb related drivers
This email address is going to expire soon and my contribution to musb
is next to zero so remove it.
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Lopo [Thu, 16 Apr 2009 21:35:24 +0000 (14:35 -0700)]
USB: Gadget: MIPS CI13xxx UDC bugfixes
Bug Fix: high speed detection in LPM mode
Bug Fix: max packet size configuration when switching between HS and FS
Signed-off-by: David Lopo <dlopo@chipidea.mips.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Chuck Short [Tue, 14 Apr 2009 18:50:31 +0000 (20:50 +0200)]
USB: Unusual Device support for Gold MP3 Player Energy
Reported by Alessio Treglia on
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/125250
User was getting the following errors in dmesg:
[ 2158.139386] sd 5:0:0:1: ioctl_internal_command return code =
8000002
[ 2158.139390] : Current: sense key: No Sense
[ 2158.139393] Additional sense: No additional sense information
Adds unusual device support.
modified: drivers/usb/storage/unusual_devs.h
Signed-off-by: Chuck Short <zulcss@ubuntu.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 14 Apr 2009 15:31:02 +0000 (11:31 -0400)]
USB: serial: fix lifetime and locking problems
This patch (as1229) fixes a few lifetime and locking problems in the
usb-serial driver. The main symptom is that an invalid kevent is
created when the serial device is unplugged while a connection is
active.
Ports should be unregistered when device is disconnected,
not when the parent usb_serial structure is deallocated.
Each open file should hold a reference to the corresponding
port structure, and the reference should be released when
the file is closed.
serial->disc_mutex should be acquired in serial_open(), to
resolve the classic race between open and disconnect.
serial_close() doesn't need to hold both serial->disc_mutex
and port->mutex at the same time.
Release the subdriver's module reference only after releasing
all the other references, in case one of the release routines
needs to invoke some code in the subdriver module.
Replace a call to flush_scheduled_work() (which is prone to
deadlocks) with cancel_work_sync(). Also, add a call to
cancel_work_sync() in the disconnect routine.
Reduce the scope of serial->disc_mutex in serial_disconnect().
The only place it really needs to protect is where the
"disconnected" flag is set.
This fixes the bug reported in
http://bugs.freedesktop.org/show_bug.cgi?id=20703
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Dan Williams <dcbw@redhat.com>
Tested-by: Ming Lei <tom.leiming@gmail.com>
Reviewed-by: Oliver Neukum <oliver@neukum.org>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bartlomiej Zolnierkiewicz [Thu, 23 Apr 2009 20:53:45 +0000 (22:53 +0200)]
MAINTAINERS: update IDE entry
By a popular demand quilt tree was replaced by a git one.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Bartlomiej Zolnierkiewicz [Thu, 23 Apr 2009 20:53:45 +0000 (22:53 +0200)]
palm_bk3710: palm_bk3710_udmatimings[] CodingStyle fixup
Remove superfluous commas and add missing whitespaces.
Noticed-by: Joe Perches <joe@perches.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
David Brownell [Thu, 23 Apr 2009 20:53:43 +0000 (22:53 +0200)]
palm_bk3710: those registers/bitfields don't exist
Bugfixes noted by checking the code against the controller
documentation (TI document number SPRUE21):
- Remove declarations for eight non-existent registers (!);
and remove accesses to two of them.
- Remove access to various non-existent bitfields in some of
the registers which *do* exist (those fields must-be-zero).
- Provide comment to replace bogus reset logic (removed above,
it relied on non-existent bitfields). Resets require GPIO
help; this driver doesn't currently know about that.
With some minor cleanup: relocate a comment, avoid an extra
lookup of the PIO timings.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Martin Schwidefsky [Thu, 23 Apr 2009 11:58:11 +0000 (13:58 +0200)]
[S390] update default configuration.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Thu, 23 Apr 2009 11:58:10 +0000 (13:58 +0200)]
[S390] omit frame pointers on s390 when possible
Always omit frame pointers on s390. They aren't too useful for the
kernel since we have already the kernel stack backchain which allows
us to walk the kernel stack.
So eleminate the extra code for frame pointers. Only allow the extra
code for the function tracer since the gcc compile options -pg and
-fomit-frame-pointer are incompatible.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Frank Munzert [Thu, 23 Apr 2009 11:58:09 +0000 (13:58 +0200)]
[S390] Use tape_generic_offline directly.
tape_3590_offline and tape_34xx_offline are removed and tape_generic_offline
is called directly instead.
Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Thu, 23 Apr 2009 11:58:08 +0000 (13:58 +0200)]
[S390] /proc/stat idle field for idle cpus
The cpu idle field in the output of /proc/stat is too small for cpus
that have been idle for more than a tick. Add the architecture hook
arch_idle_time that allows to add the not accounted idle time of a
sleeping cpu without waking the cpu.
The s390 implementation of arch_idle_time uses the already existing
s390_idle_data per_cpu variable to find the sleep time of a neighboring
idle cpu.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Gerald Schaefer [Thu, 23 Apr 2009 11:58:07 +0000 (13:58 +0200)]
[S390] appldata: avoid deadlock with appldata_mem
The appldata_ops callbacks are called with a spin_lock held. But the
appldata_mem callback then calls all_vm_events(), which calls
get_online_cpus(), which might sleep. This possible deadlock is fixed
by using a mutex instead of a spin_lock.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Thu, 23 Apr 2009 11:58:06 +0000 (13:58 +0200)]
[S390] ipl: fix compile breakage
Fix this for !CONFIG_SMP:
arch/s390/kernel/ipl.c: In function 'stop_run':
arch/s390/kernel/ipl.c:1461: error: implicit declaration of function 'signal_processor'
Reported-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Steven Whitehouse [Thu, 23 Apr 2009 07:59:41 +0000 (08:59 +0100)]
GFS2: Ensure that the inode goal block settings are updated
GFS2 has a goal block associated with each inode indicating the
search start position for future block allocations (in fact there
are two, but thats for backward compatibility with GFS1 as they
are set to identical locations in GFS2).
In some circumstances, depending on the ordering of updates to
the inode it was possible for the goal block settings to not
be updated on disk. This patch ensures that the goal block will
always get updated, thus reducing the potential for searching
the same (already allocated) blocks again when looking for free
space during block allocation.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Steven Whitehouse [Thu, 23 Apr 2009 07:54:02 +0000 (08:54 +0100)]
GFS2: Fix bug in block allocation
The new bitfit algorithm was counting from the wrong end of
64 bit words in the bitfield. This fixes it by using __ffs64
instead of fls64
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Steven Whitehouse [Thu, 23 Apr 2009 07:48:15 +0000 (08:48 +0100)]
bitops: Add __ffs64 bitop
Finds the first set bit in a 64 bit word. This is required in order
to fix a bug in GFS2, but I think it should be a generic function
in case of future users.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Reviewed-by: Willy Tarreau <w@1wt.eu>
Tyler Hicks [Thu, 16 Apr 2009 23:35:37 +0000 (18:35 -0500)]
eCryptfs: Larger buffer for encrypted symlink targets
When using filename encryption with eCryptfs, the value of the symlink
in the lower filesystem is encrypted and stored as a Tag 70 packet.
This results in a longer symlink target than if the target value wasn't
encrypted.
Users were reporting these messages in their syslog:
[ 45.653441] ecryptfs_parse_tag_70_packet: max_packet_size is [56]; real
packet size is [51]
[ 45.653444] ecryptfs_decode_and_decrypt_filename: Could not parse tag
70 packet from filename; copying through filename as-is
This was due to bufsiz, one the arguments in readlink(), being used to
when allocating the buffer passed to the lower inode's readlink().
That symlink target may be very large, but when decoded and decrypted,
could end up being smaller than bufsize.
To fix this, the buffer passed to the lower inode's readlink() will
always be PATH_MAX in size when filename encryption is enabled. Any
necessary truncation occurs after the decoding and decrypting.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Wed, 22 Apr 2009 21:27:12 +0000 (16:27 -0500)]
eCryptfs: Lock lower directory inode mutex during lookup
This patch locks the lower directory inode's i_mutex before calling
lookup_one_len() to find the appropriate dentry in the lower filesystem.
This bug was found thanks to the warning set in commit
2f9092e1.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Geert Uytterhoeven [Sun, 29 Mar 2009 12:23:44 +0000 (14:23 +0200)]
m68k: Update defconfigs for 2.6.30-rc3
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Thu, 9 Apr 2009 20:23:51 +0000 (22:23 +0200)]
m68k,m68knommu: Wire up preadv and pwritev
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Geert Uytterhoeven [Thu, 9 Apr 2009 19:22:42 +0000 (21:22 +0200)]
scsi: a4000 - Correct driver unregistration in case of failure
commit
7a192ec334cab9fafe3a8665a65af398b0e24730 ("platform driver: fix
incorrect use of 'platform_bus_type' with 'struct device_driver') turned a
driver_UNregister into platform_driver_REGISTER. Correct this to
platform_driver_UNregister.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Bartlomiej Zolnierkiewicz [Wed, 22 Apr 2009 18:33:41 +0000 (20:33 +0200)]
mediabay: fix build for CONFIG_BLOCK=n
On Tuesday 14 April 2009 20:31:21 Subrata Modak wrote:
> Observed the following build error:
> ---
> CC drivers/macintosh/mediabay.o
> In file included from drivers/macintosh/mediabay.c:21:
> include/linux/ide.h:605: error: field ‘request_sense_rq’ has incomplete
> type
> make[2]: *** [drivers/macintosh/mediabay.o] Error 1
> make[1]: *** [drivers/macintosh] Error 2
> make: *** [drivers] Error 2
> ---
mediabay shouldn't include <linux/ide.h> unconditionally so
remove the superfluous include from mediabay.c (<asm/mediabay.h>
will pull <linux/ide.h> in for CONFIG_BLK_DEV_IDE_PMAC=y).
Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Bruno Prémont [Wed, 22 Apr 2009 18:33:41 +0000 (20:33 +0200)]
ide: Stop disks on reboot for laptop which cuts power
My laptop (Acer Travelmate 660) always cuts the power when rebooting
which causes the disk to emergency-park it's head.
Add a dmi check to stop disk as for shutdown on this laptop.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Helge Deller [Wed, 22 Apr 2009 18:33:40 +0000 (20:33 +0200)]
ide-cd: fix kernel crash on hppa regression
With 2.6.30-rc2 I face a kernel crash on the 32bit hppa architecture
due to ide-cd when udev creates the device nodes at startup:
Kernel Fault: Code=26 regs=
8ed34c40 (Addr=
00000024)
IASQ:
00000000 00000000 IAOQ:
1034b5ac 1034b5b0
IIR:
4ab30048 ISR:
00000000 IOR:
00000024
CPU: 0 CR30:
8ed34000 CR31:
ffff55ff
ORIG_R28:
00000000
IAOQ[0]: ide_complete_rq+0x2c/0x70
IAOQ[1]: ide_complete_rq+0x30/0x70
RP(r2): cdrom_newpc_intr+0x178/0x46c
Backtrace:
[<
1035c608>] cdrom_newpc_intr+0x178/0x46c
[<
1034c494>] ide_intr+0x1b0/0x214
[<
1016d284>] handle_IRQ_event+0x70/0x150
[<
1016d4b0>] __do_IRQ+0x14c/0x1cc
[<
102f7864>] superio_interrupt+0x88/0xbc
[<
1016d284>] handle_IRQ_event+0x70/0x150
[<
1016d4b0>] __do_IRQ+0x14c/0x1cc
[<
10112efc>] do_cpu_irq_mask+0x9c/0xd0
[<
10116068>] intr_return+0x0/0x4
This crash seems to happen due to an uninitialized variable "rc".
The compiler even warns about that:
CC drivers/ide/ide-cd.o
/mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c: In function `cdrom_newpc_intr':
/mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c:612: warning: `rc' might be used uninitialized in this function
After applying the trivial patch below, which just initializes
the variable to zero, the kernel doesn't crash any longer:
Starting the hotplug events dispatcher: udevd.
Synthesizing the initial hotplug events...
hda: command error: status=0x51 { DriveReady SeekComplete Error }
hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
ide: failed opcode was: unknown
done.
Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Cc: Linus <torvalds@linux-foundation.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
David Brownell [Wed, 22 Apr 2009 18:33:40 +0000 (20:33 +0200)]
palm_bk3710: UDMA performance fix
Fix UDMA throughput bug: tCYC averages t2CYCTYP/2, but the code
previously assumed it was the same as t2CYCTYP. (That is, it was
using just one clock edge, not both.) Move the table's type
declaration so it's adjacent to the table, making it more clear
what those numbers mean.
On one system this change increased throughput by almost 4x: UDMA/66
sometimes topped 23 MB/sec (on a drive known to do much better). On
another system it was around a 10% win (UDMA/66 up to 7+ MB/sec).
The difference might be caused by the ratio between memory and IDE
clocks. In the system with large speedup, this was exactly 2 (as a
workaround for a rev 1.1 silicon bug). The other system used a more
standard ratio of 1.63 (and rev 2.1 silicon) ... clock domain synch
might have some issues, they're not unheard-of.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Jan Kiszka [Fri, 17 Apr 2009 17:24:58 +0000 (19:24 +0200)]
KVM: Unregister cpufreq notifier on unload
Properly unregister cpufreq notifier on onload if it was registered
during init.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Joerg Roedel [Wed, 25 Feb 2009 15:08:31 +0000 (16:08 +0100)]
KVM: x86: release time_page on vcpu destruction
Not releasing the time_page causes a leak of that page or the compound
page it is situated in.
Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Jan Kiszka [Mon, 13 Apr 2009 09:59:32 +0000 (11:59 +0200)]
KVM: Fix overlapping check for memory slots
When checking for overlapping slots on registration of a new one, kvm
currently also considers zero-length (ie. deleted) slots and rejects
requests incorrectly. This finally denies user space from joining slots.
Fix the check by skipping deleted slots and advertise this via a
KVM_CAP_JOIN_MEMORY_REGIONS_WORKS.
Cc: stable@kernel.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Marcelo Tosatti [Sun, 5 Apr 2009 17:54:46 +0000 (14:54 -0300)]
KVM: MMU: disable global page optimization
Complexity to fix it not worthwhile the gains, as discussed
in http://article.gmane.org/gmane.comp.emulators.kvm.devel/28649.
Cc: stable@kernel.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Jes Sorensen [Thu, 9 Apr 2009 14:38:14 +0000 (16:38 +0200)]
KVM: ia64: fix locking order entering guest
Reorder locking as down_read() may return with local interrupts enabled,
which means we could go into vti_vcpu_run() with interrupts enabled.
This caused random crashes on the Altix as the timer interrupt tried
to read a memory mapped clock source, for which the TLB had not yet been
reinstated in the exit, before ipsr was retored.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Acked-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Avi Kivity [Sun, 29 Mar 2009 13:31:25 +0000 (16:31 +0300)]
KVM: MMU: Fix off-by-one calculating large page count
The large page initialization code concludes there are two large pages spanned
by a slot covering 1 (small) page starting at gfn 1. This is incorrect, and
also results in incorrect write_count initialization in some cases (base = 1,
npages = 513 for example).
Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>
David S. Miller [Fri, 17 Apr 2009 11:14:15 +0000 (04:14 -0700)]
sparc: Fix bus type probing for ESP and LE devices.
If there is a dummy "espdma" or "ledma" parent device above ESP scsi
or LE ethernet device nodes, we have to match the bus as SBUS.
Otherwise the address and size cell counts are wrong and we don't
calculate the final physical device resource values correctly at all.
Commit
5280267c1dddb8d413595b87dc406624bb497946 ("sparc: Fix handling
of LANCE and ESP parent nodes in of_device.c") was meant to fix this
problem, but that only influences the inner loop of
build_device_resources(). We need this logic to also kick in at the
beginning of build_device_resources() as well, when we make the first
attempt to determine the device's immediate parent bus type for 'reg'
property element extraction.
Based almost entirely upon a patch by Friedrich Oslage.
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso [Wed, 22 Apr 2009 09:26:37 +0000 (02:26 -0700)]
netfilter: ctnetlink: fix gcc warning during compilation
This patch fixes a (bogus?) gcc warning during compilation:
net/netfilter/nf_conntrack_netlink.c:1234: warning: 'helpname' may be used uninitialized in this function
net/netfilter/nf_conntrack_netlink.c:991: warning: 'helpname' may be used uninitialized in this function
In fact, helpname is initialized by ctnetlink_parse_help() so
I cannot see a way to use it without being initialized.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tyler Hicks [Wed, 22 Apr 2009 09:08:46 +0000 (04:08 -0500)]
eCryptfs: Remove ecryptfs_unlink_sigs warnings
A feature was added to the eCryptfs umount helper to automatically
unlink the keys used for an eCryptfs mount from the kernel keyring upon
umount. This patch keeps the unrecognized mount option warnings for
ecryptfs_unlink_sigs out of the logs.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Mon, 13 Apr 2009 20:29:27 +0000 (15:29 -0500)]
eCryptfs: Fix data corruption when using ecryptfs_passthrough
ecryptfs_passthrough is a mount option that allows eCryptfs to allow
data to be written to non-eCryptfs files in the lower filesystem. The
passthrough option was causing data corruption due to it not always
being treated as a non-eCryptfs file.
The first 8 bytes of an eCryptfs file contains the decrypted file size.
This value was being written to the non-eCryptfs files, too. Also,
extra 0x00 characters were being written to make the file size a
multiple of PAGE_CACHE_SIZE.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Mon, 16 Mar 2009 17:35:12 +0000 (12:35 -0500)]
eCryptfs: Print FNEK sig properly in /proc/mounts
The filename encryption key signature is not properly displayed in
/proc/mounts. The "ecryptfs_sig=" mount option name is displayed for
all global authentication tokens, included those for filename keys.
This patch checks the global authentication token flags to determine if
the key is a FEKEK or FNEK and prints the appropriate mount option name
before the signature.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Sun, 15 Mar 2009 19:17:01 +0000 (14:17 -0500)]
eCryptfs: NULL pointer dereference in ecryptfs_send_miscdev()
If data is NULL, msg_ctx->msg is set to NULL and then dereferenced
afterwards. ecryptfs_send_raw_message() is the only place that
ecryptfs_send_miscdev() is called with data being NULL, but the only
caller of that function (ecryptfs_process_helo()) is never called. In
short, there is currently no way to trigger the NULL pointer
dereference.
This patch removes the two unused functions and modifies
ecryptfs_send_miscdev() to remove the NULL dereferences.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Thu, 12 Mar 2009 05:19:46 +0000 (00:19 -0500)]
eCryptfs: Copy lower inode attrs before dentry instantiation
Copies the lower inode attributes to the upper inode before passing the
upper inode to d_instantiate(). This is important for
security_d_instantiate().
The problem was discovered by a user seeing SELinux denials like so:
type=AVC msg=audit(
1236812817.898:47): avc: denied { 0x100000 } for
pid=3584 comm="httpd" name="testdir" dev=ecryptfs ino=943872
scontext=root:system_r:httpd_t:s0
tcontext=root:object_r:httpd_sys_content_t:s0 tclass=file
Notice target class is file while testdir is really a directory,
confusing the permission translation (0x100000) due to the wrong i_mode.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Jean Delvare [Wed, 22 Apr 2009 07:49:51 +0000 (00:49 -0700)]
net/netrom: Fix socket locking
Patch "af_rose/x25: Sanity check the maximum user frame size"
(commit
83e0bbcbe2145f160fbaa109b0439dae7f4a38a9) from Alan Cox got
locking wrong. If we bail out due to user frame size being too large,
we must unlock the socket beforehand.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Moore [Tue, 21 Apr 2009 10:04:22 +0000 (10:04 +0000)]
netlabel: Always remove the correct address selector
The NetLabel address selector mechanism has a problem where it can get
mistakenly remove the wrong selector when similar addresses are used. The
problem is caused when multiple addresses are configured that have different
netmasks but the same address, e.g. 127.0.0.0/8 and 127.0.0.0/24. This patch
fixes the problem.
Reported-by: Etienne Basset <etienne.basset@numericable.fr>
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
Tested-by: Etienne Basset <etienne.basset@numericable.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiko Schocher [Mon, 20 Apr 2009 22:36:43 +0000 (22:36 +0000)]
ucc_geth.c: Fix upsmr setting in RMII mode
If using the UCC on a MPC8360 in RMII mode, don;t set
UCC_GETH_UPSMR_RPM bit in the upsmr register.
Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jianjun kong [Mon, 20 Apr 2009 23:48:25 +0000 (23:48 +0000)]
8139too: fix HW initial flow
While ifconfig eth0 up kernel calls open() of 8139 driver(8139too.c).
In rtl8139_hw_start() of rtl8139_open(), 8139 driver enable RX before
setting up the DMA buffer address. In this interval where RX was
enabled and DMA buffer address is not yet set up, any incoming
broadcast packet would be send to a strange physical address:
0x003e8800 which is the default value of DMA buffer address.
Unfortunately, this address is used by Linux kernel. So kernel panics.
This patch fix it by setting up DMA buffer address before RX enabled
and everything is fine even under broadcast packets attack.
Signed-off-by: Jonathan Lin <jon.lin@vatics.com>
Signed-off-by: Amos Kong <jianjun@zeuux.org>
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Takashi Iwai [Wed, 22 Apr 2009 07:09:29 +0000 (09:09 +0200)]
Merge commit 'alsa/master' into for-linus
* commit 'alsa/master':
[ALSA] intel8x0: another attempt to fix ac97_clock measure routine
[ALSA] ac97_codec: increase timeout for analog subsections
Hendrik Brueckner [Tue, 21 Apr 2009 06:04:24 +0000 (06:04 +0000)]
af_iucv: Fix race when queuing incoming iucv messages
AF_IUCV runs into a race when queuing incoming iucv messages
and receiving the resulting backlog.
If the Linux system is under pressure (high load or steal time),
the message queue grows up, but messages are not received and queued
onto the backlog queue. In that case, applications do not
receive any data with recvmsg() even if AF_IUCV puts incoming
messages onto the message queue.
The race can be avoided if the message queue spinlock in the
message_pending callback is spreaded across the entire callback
function.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hendrik Brueckner [Tue, 21 Apr 2009 06:04:23 +0000 (06:04 +0000)]
af_iucv: Test additional sk states in iucv_sock_shutdown
Add few more sk states in iucv_sock_shutdown().
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hendrik Brueckner [Tue, 21 Apr 2009 06:04:22 +0000 (06:04 +0000)]
af_iucv: Reject incoming msgs if RECV_SHUTDOWN is set
Reject incoming iucv messages if the receive direction has been shut down.
It avoids that the queue of outstanding messages increases and exceeds the
message limit of the iucv communication path.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hendrik Brueckner [Tue, 21 Apr 2009 06:04:21 +0000 (06:04 +0000)]
af_iucv: fix oops in iucv_sock_recvmsg() for MSG_PEEK flag
If iucv_sock_recvmsg() is called with MSG_PEEK flag set, the skb is enqueued
twice. If the socket is then closed, the pointer to the skb is freed twice.
Remove the skb_queue_head() call for MSG_PEEK, because the skb_recv_datagram()
function already handles MSG_PEEK (does not dequeue the skb).
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun [Tue, 21 Apr 2009 06:04:20 +0000 (06:04 +0000)]
af_iucv: consider state IUCV_CLOSING when closing a socket
Make sure a second invocation of iucv_sock_close() guarantees proper
freeing of an iucv path.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Moyer [Tue, 21 Apr 2009 05:31:56 +0000 (07:31 +0200)]
cfq-iosched: use the default seek distance when there aren't enough seek samples
If the cfq io context doesn't have enough samples yet to provide a mean
seek distance, then use the default threshold we have for seeky IO instead
of defaulting to 0.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jeff Moyer [Tue, 21 Apr 2009 05:25:04 +0000 (07:25 +0200)]
cfq-iosched: make seek_mean converge more quickly
Right now, depending on the first sector to which a process issues I/O,
the seek time may start out way out of whack. So make sure we start
with 0 sectors in seek, instead of the offset of the first request
issued.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Fri, 17 Apr 2009 06:36:50 +0000 (08:36 +0200)]
block: make blk_abort_queue() ignore non-request based devices
There's nothing to do for those devices, since the timeout handling is
based on requests.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Tejun Heo [Fri, 17 Apr 2009 06:34:48 +0000 (08:34 +0200)]
block: include empty disks in /proc/diskstats
/proc/diskstats used to show stats for all disks whether they're
zero-sized or not and their non-zero partitions. Commit
074a7aca7afa6f230104e8e65eba3420263714a5 accidentally changed the
behavior such that it doesn't print out zero sized disks. This patch
implements DISK_PITER_INCL_EMPTY_PART0 flag to partition iterator and
uses it in diskstats_show() such that empty part0 is shown in
/proc/diskstats.
Reported and bisectd by Dianel Collins.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Daniel Collins <solemnwarning@solemnwarning.no-ip.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Tejun Heo [Wed, 15 Apr 2009 13:10:27 +0000 (22:10 +0900)]
bio: use bio_kmalloc() in copy/map functions
Impact: remove possible deadlock condition
There is no reason to use mempool backed allocation for map functions.
Also, because kern mapping is used inside LLDs (e.g. for EH), using
mempool backed allocation can lead to deadlock under extreme
conditions (mempool already consumed by the time a request reached EH
and requests are blocked on EH).
Switch copy/map functions to bio_kmalloc().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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