Commit Graph

231787 Commits

Author SHA1 Message Date
Julia Lawall
5dc1365cef drivers/video/bf537-lq035.c: Add missing IS_ERR test
lcd_device_register may return ERR_PTR, so a check is added for this value
before the dereference.  All of the other changes reorganize the error
handling code in this function to avoid duplicating all of it in the added
case.

In the original code, in one case, the global variable fb_buffer was set to
NULL in error code that appears after this variable is initialized.  This
is done now in all error handling code that has this property.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier f;
@@
f(...) { ... return ERR_PTR(...); }

@@
identifier r.f, fld;
expression x;
statement S1,S2;
@@
 x = f(...)
 ... when != IS_ERR(x)
(
 if (IS_ERR(x) ||...) S1 else S2
|
*x->fld
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-25 15:09:24 +09:00
axel lin
e88e43b0c5 video: pxa168fb: remove a redundant pxa168fb_check_var call
Current implementation calls pxa168fb_check_var twice in pxa168fb_probe.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-25 15:09:19 +09:00
axel lin
360c202beb video: da8xx-fb: fix fb_probe error path
Current implementation puts CONFIG_CPU_FREQ at wrong place, CONFIG_CPU_FREQ
is for lcd_da8xx_cpufreq_deregister not for unregister_framebuffer.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-25 15:09:13 +09:00
axel lin
0b7f1cc79d video: pxa3xx-gcu: Return -EFAULT when copy_from_user() fails
Return -EFAULT instead of number of bytes that could not be copied if
copy_from_user() fails.

Also fix a typo in the comments.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-18 13:40:34 +09:00
Axel Lin
6c9571f4b7 video: nuc900fb: properly free resources in nuc900fb_remove
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-18 13:38:06 +09:00
Axel Lin
d10df505f8 video: nuc900fb: fix compile error
This patch fixes below compile error:

  CC      drivers/video/nuc900fb.o
drivers/video/nuc900fb.c: In function 'nuc900fb_suspend':
drivers/video/nuc900fb.c:726: error: too few arguments to function 'nuc900fb_stop_lcd'
drivers/video/nuc900fb.c: In function 'nuc900fb_resume':
drivers/video/nuc900fb.c:743: error: 'bfinfo' undeclared (first use in this function)
drivers/video/nuc900fb.c:743: error: (Each undeclared identifier is reported only once
drivers/video/nuc900fb.c:743: error: for each function it appears in.)
make[2]: *** [drivers/video/nuc900fb.o] Error 1
make[1]: *** [drivers/video] Error 2
make: *** [drivers] Error 2

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-18 13:37:59 +09:00
Andres Salomon
e6f597a142 staging: fix build failure in bcm driver
While building latest Linus git, I hit the following:

    CC [M]  drivers/staging/bcm/Qos.o
  drivers/staging/bcm/Qos.c: In function ‘PruneQueue’:
  drivers/staging/bcm/Qos.c:367: error: ‘struct netdev_queue’ has no member named ‘tx_dropped’
  drivers/staging/bcm/Qos.c: In function ‘flush_all_queues’:
  drivers/staging/bcm/Qos.c:416: error: ‘struct netdev_queue’ has no member named ‘tx_dropped’
  make[5]: *** [drivers/staging/bcm/Qos.o] Error 1
  make[4]: *** [drivers/staging/bcm] Error 2
  make[3]: *** [drivers/staging] Error 2

As well as:

    CC [M]  drivers/staging/bcm/Transmit.o
  drivers/staging/bcm/Transmit.c: In function ‘SetupNextSend’:
  drivers/staging/bcm/Transmit.c:163: error: ‘struct netdev_queue’ has no member named ‘tx_bytes’
  drivers/staging/bcm/Transmit.c:164: error: ‘struct netdev_queue’ has no member named ‘tx_packets’
  make[2]: *** [drivers/staging/bcm/Transmit.o] Error 1

tx_dropped/tx_bytes_tx_packets were removed in commit 1ac9ad13.  This patch
converts bcm to use net_device_stats instead of netdev_queue.

Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-17 17:39:39 -08:00
Linus Torvalds
6845a44a31 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA: Update workqueue usage
  RDMA/nes: Fix incorrect SFP+ link status detection on driver init
  RDMA/nes: Fix SFP+ link down detection issue with switch port disable
  RDMA/nes: Generate IB_EVENT_PORT_ERR/PORT_ACTIVE events
  RDMA/nes: Fix bonding on iw_nes
  IB/srp: Test only once whether iu allocation succeeded
  IB/mlx4: Handle protocol field in multicast table
  RDMA: Use vzalloc() to replace vmalloc()+memset(0)
  mlx4_{core, ib, en}: Fix driver when sizeof (phys_addr_t) > sizeof (long)
  IB/mthca: Fix driver when sizeof (phys_addr_t) > sizeof (long)
2011-01-17 14:45:48 -08:00
Linus Torvalds
eee2a817df Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (25 commits)
  Btrfs: forced readonly mounts on errors
  btrfs: Require CAP_SYS_ADMIN for filesystem rebalance
  Btrfs: don't warn if we get ENOSPC in btrfs_block_rsv_check
  btrfs: Fix memory leak in btrfs_read_fs_root_no_radix()
  btrfs: check NULL or not
  btrfs: Don't pass NULL ptr to func that may deref it.
  btrfs: mount failure return value fix
  btrfs: Mem leak in btrfs_get_acl()
  btrfs: fix wrong free space information of btrfs
  btrfs: make the chunk allocator utilize the devices better
  btrfs: restructure find_free_dev_extent()
  btrfs: fix wrong calculation of stripe size
  btrfs: try to reclaim some space when chunk allocation fails
  btrfs: fix wrong data space statistics
  fs/btrfs: Fix build of ctree
  Btrfs: fix off by one while setting block groups readonly
  Btrfs: Add BTRFS_IOC_SUBVOL_GETFLAGS/SETFLAGS ioctls
  Btrfs: Add readonly snapshots support
  Btrfs: Refactor btrfs_ioctl_snap_create()
  btrfs: Extract duplicate decompress code
  ...
2011-01-17 14:43:43 -08:00
Linus Torvalds
83896fb5e5 Revert "mm: simplify code of swap.c"
This reverts commit d8505dee1a.

Chris Mason ended up chasing down some page allocation errors and pages
stuck waiting on the IO scheduler, and was able to narrow it down to two
commits: commit 744ed14427 ("mm: batch activate_page() to reduce lock
contention") and d8505dee1a ("mm: simplify code of swap.c").

This reverts the second one.

Reported-and-debugged-by: Chris Mason <chris.mason@oracle.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-17 14:42:34 -08:00
Linus Torvalds
7a608572a2 Revert "mm: batch activate_page() to reduce lock contention"
This reverts commit 744ed14427.

Chris Mason ended up chasing down some page allocation errors and pages
stuck waiting on the IO scheduler, and was able to narrow it down to two
commits: commit 744ed14427 ("mm: batch activate_page() to reduce lock
contention") and d8505dee1a ("mm: simplify code of swap.c").

This reverts the first of them.

Reported-and-debugged-by: Chris Mason <chris.mason@oracle.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-17 14:42:19 -08:00
Linus Torvalds
9e8a462a01 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
  ecryptfs: remove unnecessary decrypt when extending a file
  ecryptfs: Fix ecryptfs_printk() size_t warnings
  fs/ecryptfs: Add printf format/argument verification and fix fallout
  ecryptfs: fixed testing of file descriptor flags
  ecryptfs: test lower_file pointer when lower_file_mutex is locked
  ecryptfs: missing initialization of the superblock 'magic' field
  ecryptfs: moved ECRYPTFS_SUPER_MAGIC definition to linux/magic.h
  ecryptfs: fix truncation error in ecryptfs_read_update_atime
2011-01-17 12:39:57 -08:00
Geert Uytterhoeven
cf78859f52 xfs: Do not name variables "panic"
On platforms that call panic() inside their BUG() macro (m68k/sun3, and
all platforms that don't set HAVE_ARCH_BUG), compilation fails with:

| fs/xfs/support/debug.c: In function ‘xfs_cmn_err’:
| fs/xfs/support/debug.c:92: error: called object ‘panic’ is not a function

as the local variable "panic" conflicts with the "panic()" function.
Rename the local variable to resolve this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-17 12:39:07 -08:00
liubo
acce952b02 Btrfs: forced readonly mounts on errors
This patch comes from "Forced readonly mounts on errors" ideas.

As we know, this is the first step in being more fault tolerant of disk
corruptions instead of just using BUG() statements.

The major content:
- add a framework for generating errors that should result in filesystems
  going readonly.
- keep FS state in disk super block.
- make sure that all of resource will be freed and released at umount time.
- make sure that fter FS is forced readonly on error, there will be no more
  disk change before FS is corrected. For this, we should stop write operation.

After this patch is applied, the conversion from BUG() to such a framework can
happen incrementally.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-01-17 15:13:08 -05:00
Linus Torvalds
8c34482c17 Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  spi/spi_sh_msiof: fix a wrong free_irq() parameter
  dt/flattree: Return virtual address from early_init_dt_alloc_memory_arch()
2011-01-17 11:18:40 -08:00
Linus Torvalds
1a47f7a84e Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: add cruid= mount option
  cifs: cFYI the entire error code in map_smb_to_linux_error
2011-01-17 11:17:51 -08:00
Linus Torvalds
ab2020f2f1 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (59 commits)
  mtd: mtdpart: disallow reading OOB past the end of the partition
  mtd: pxa3xx_nand: NULL dereference in pxa3xx_nand_probe
  UBI: use mtd->writebufsize to set minimal I/O unit size
  mtd: initialize writebufsize in the MTD object of a partition
  mtd: onenand: add mtd->writebufsize initialization
  mtd: nand: add mtd->writebufsize initialization
  mtd: cfi: add writebufsize initialization
  mtd: add writebufsize field to mtd_info struct
  mtd: OneNAND: OMAP2/3: prevent regulator sleeping while OneNAND is in use
  mtd: OneNAND: add enable / disable methods to onenand_chip
  mtd: m25p80: Fix JEDEC ID for AT26DF321
  mtd: txx9ndfmc: limit transfer bytes to 512 (ECC provides 6 bytes max)
  mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chips
  mtd: cfi_cmdset_0002: add support for Samsung K8D6x16UxM NOR chips
  mtd: nand: ams-delta: drop omap_read/write, use ioremap
  mtd: m25p80: add debugging trace in sst_write
  mtd: nand: ams-delta: select for built-in by default
  mtd: OneNAND: lighten scary initial bad block messages
  mtd: OneNAND: OMAP2/3: add support for command line partitioning
  mtd: nand: rearrange ONFI revision checking, add ONFI 2.3
  ...

Fix up trivial conflict in drivers/mtd/Kconfig as per DavidW.
2011-01-17 11:15:30 -08:00
Frank Swiderski
24562486be ecryptfs: remove unnecessary decrypt when extending a file
Removes an unecessary page decrypt from ecryptfs_begin_write when the
page is beyond the current file size. Previously, the call to
ecryptfs_decrypt_page would result in a read of 0 bytes, but still
attempt to decrypt an entire page. This patch detects that case and
merely zeros the page before marking it up-to-date.

Signed-off-by: Frank Swiderski <fes@chromium.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-01-17 13:01:25 -06:00
Tyler Hicks
f24b38874e ecryptfs: Fix ecryptfs_printk() size_t warnings
Commit cb55d21f6fa19d8c6c2680d90317ce88c1f57269 revealed a number of
missing 'z' length modifiers in calls to ecryptfs_printk() when
printing variables of type size_t. This patch fixes those compiler
warnings.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-01-17 13:01:24 -06:00
Joe Perches
888d57bbc9 fs/ecryptfs: Add printf format/argument verification and fix fallout
Add __attribute__((format... to __ecryptfs_printk
Make formats and arguments match.
Add casts to (unsigned long long) for %llu.

Signed-off-by: Joe Perches <joe@perches.com>
[tyhicks: 80 columns cleanup and fixed typo]
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-01-17 13:01:23 -06:00
Linus Torvalds
235646a486 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  fs: fix address space warnings in ioctl_fiemap()
  aio: check return value of create_workqueue()
  hpfs_setattr error case avoids unlock_kernel
  compat: copy missing fields in compat_statfs64 to user
  compat: update comment of compat statfs syscalls
  compat: remove unnecessary assignment in compat_rw_copy_check_uvector()
  fs: FS_POSIX_ACL does not depend on BLOCK
  fs: Remove unlikely() from fget_light()
  fs: Remove unlikely() from fput_light()
  fallocate should be a file operation
  make the feature checks in ->fallocate future proof
  staging: smbfs building fix
  tidy up around finish_automount()
  don't drop newmnt on error in do_add_mount()
  Take the completion of automount into new helper
2011-01-17 11:00:09 -08:00
Linus Torvalds
af575e2d2e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6:
  alpha: fix WARN_ON in __local_bh_enable()
  alpha: fix breakage caused by df9ee29270
  alpha: add GENERIC_HARDIRQS_NO__DO_IRQ to Kconfig
  alpha/osf_sys: remove unused MAX_SELECT_SECONDS
  alpha: change to new Makefile flag variables
  alpha: kill off alpha_do_IRQ
  alpha: irq clean up
  alpha: use set_irq_chip and push down __do_IRQ to the machine types
2011-01-17 10:58:44 -08:00
Linus Torvalds
584ef2cd70 Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: balance asic_reset functions
  drm/radeon/kms: remove duplicate card_posted() functions
  drm/radeon/kms: add module option for pcie gen2
  drm/radeon/kms: fix typo in evergreen safe reg
  drm/nouveau: fix gpu page faults triggered by plymouthd
  drm/nouveau: greatly simplify mm, killing some bugs in the process
  drm/nvc0: enable protection of system-use-only structures in vm
  drm/nv40: initialise 0x17xx on all chipsets that have it
  drm/nv40: make detection of 0x4097-ful chipsets available everywhere
2011-01-17 10:57:59 -08:00
Linus Torvalds
e1288cd72f Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (63 commits)
  ARM: PL08x: cleanup comments
  Update CONFIG_MD_RAID6_PQ to CONFIG_RAID6_PQ in drivers/dma/iop-adma.c
  ARM: PL08x: fix a warning
  Fix dmaengine_submit() return type
  dmaengine: at_hdmac: fix race while monitoring channel status
  dmaengine: at_hdmac: flags located in first descriptor
  dmaengine: at_hdmac: use subsys_initcall instead of module_init
  dmaengine: at_hdmac: no need set ACK in new descriptor
  dmaengine: at_hdmac: trivial add precision to unmapping comment
  dmaengine: at_hdmac: use dma_address to program DMA hardware
  pch_dma: support new device ML7213 IOH
  ARM: PL08x: prevent dma_set_runtime_config() reconfiguring memcpy channels
  ARM: PL08x: allow dma_set_runtime_config() to return errors
  ARM: PL08x: fix locking between prepare function and submit function
  ARM: PL08x: introduce 'phychan_hold' to hold on to physical channels
  ARM: PL08x: put txd's on the pending list in pl08x_tx_submit()
  ARM: PL08x: rename 'desc_list' as 'pend_list'
  ARM: PL08x: implement unmapping of memcpy buffers
  ARM: PL08x: store prep_* flags in async_tx structure
  ARM: PL08x: shrink srcbus/dstbus in txd structure
  ...
2011-01-17 10:54:41 -08:00
Roberto Sassu
0abe116947 ecryptfs: fixed testing of file descriptor flags
This patch replaces the check (lower_file->f_flags & O_RDONLY) with
((lower_file & O_ACCMODE) == O_RDONLY).

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-01-17 11:24:43 -06:00
Roberto Sassu
27992890b0 ecryptfs: test lower_file pointer when lower_file_mutex is locked
This patch prevents the lower_file pointer in the 'ecryptfs_inode_info'
structure to be checked when the mutex 'lower_file_mutex' is not locked.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-01-17 11:24:42 -06:00
Roberto Sassu
070baa5128 ecryptfs: missing initialization of the superblock 'magic' field
This patch initializes the 'magic' field of ecryptfs filesystems to
ECRYPTFS_SUPER_MAGIC.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
[tyhicks: merge with 66cb76666d]
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-01-17 11:23:01 -06:00
Guennadi Liakhovetski
d95defaca7 spi/spi_sh_msiof: fix a wrong free_irq() parameter
Without this fix reloading of the driver is impossible.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-01-17 10:17:36 -07:00
Roberto Sassu
2a8652f4e0 ecryptfs: moved ECRYPTFS_SUPER_MAGIC definition to linux/magic.h
The definition of ECRYPTFS_SUPER_MAGIC has been moved to the include
file 'linux/magic.h' to become available to other kernel subsystems.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-01-17 10:44:31 -06:00
Edward Shishkin
38a708d775 ecryptfs: fix truncation error in ecryptfs_read_update_atime
This is similar to the bug found in direct-io not so long ago.

Fix up truncation (ssize_t->int).  This only matters with >2G
reads/writes, which the kernel doesn't permit.

Signed-off-by: Edward Shishkin <edward.shishkin@gmail.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Eric Sandeen <esandeen@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-01-17 10:44:30 -06:00
Artem Bityutskiy
154bf89f5e mtd: mtdpart: disallow reading OOB past the end of the partition
This patch fixes the mtdpart bug which allows users reading OOB past the
end of the partition. This happens because 'part_read_oob()' allows reading
multiple OOB areas in one go, and mtdparts does not validate the OOB
length in the request.

Although there is such check in 'nand_do_read_oob()' in nand_base.c, but
it checks that we do not read past the flash chip, not the partition,
because in nand_base.c we work with the whole chip (e.g., mtd->size
in nand_base.c is the size of the whole chip). So this check cannot
be done correctly in nand_base.c and should be instead done in mtdparts.c.

This problem was reported by Jason Liu <r64343@freescale.com> and reproduced
with nandsim:

$ modprobe nandsim first_id_byte=0x20 second_id_byte=0xaa third_id_byte=0x00 \
                   fourth_id_byte=0x15 parts=0x400,0x400
$ modprobe nandsim mtd_oobtest.ko dev=0
$ dmesg
= snip =
mtd_oobtest: attempting to read past end of device
mtd_oobtest: an error is expected...
mtd_oobtest: error: read past end of device
= snip =
mtd_oobtest: finished with 2 errors

Reported-by: Jason Liu <liu.h.jason@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-17 15:25:48 +00:00
Namhyung Kim
ecf5632dd1 fs: fix address space warnings in ioctl_fiemap()
The fi_extents_start field of struct fiemap_extent_info is a
user pointer but was not marked as __user. This makes sparse
emit following warnings:

  CHECK   fs/ioctl.c
fs/ioctl.c:114:26: warning: incorrect type in argument 1 (different address spaces)
fs/ioctl.c:114:26:    expected void [noderef] <asn:1>*dst
fs/ioctl.c:114:26:    got struct fiemap_extent *[assigned] dest
fs/ioctl.c:202:14: warning: incorrect type in argument 1 (different address spaces)
fs/ioctl.c:202:14:    expected void const volatile [noderef] <asn:1>*<noident>
fs/ioctl.c:202:14:    got struct fiemap_extent *[assigned] fi_extents_start
fs/ioctl.c:212:27: warning: incorrect type in argument 1 (different address spaces)
fs/ioctl.c:212:27:    expected void [noderef] <asn:1>*dst
fs/ioctl.c:212:27:    got char *<noident>

Also add 'ufiemap' variable to eliminate unnecessary casts.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 08:21:42 -05:00
Namhyung Kim
27eaa1c90c aio: check return value of create_workqueue()
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 05:12:44 -05:00
Dr. David Alan Gilbert
274052ef0b hpfs_setattr error case avoids unlock_kernel
This fixed a case that 'sparse' spotted where hpfs_setattr has an error return
that didn't go through it's path that unlocks.

This is against git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
version 6313e3c217.

Build tested only, I don't have an hpfs file system to test.

Dave

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 05:11:37 -05:00
Namhyung Kim
e0bb6bda43 compat: copy missing fields in compat_statfs64 to user
f_flags and f_spare fields were not copied to userspace when
compat_sys_[f]statfs64 called.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 04:54:38 -05:00
Namhyung Kim
974d879e80 compat: update comment of compat statfs syscalls
The commit 7ed1ee6118 ("Take statfs variants to fs/statfs.c")
separates out statfs syscalls from fs/open.c. Thus the comment
should be changed also.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Jiri Kosina <trivial@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 04:54:38 -05:00
Namhyung Kim
6a5640f102 compat: remove unnecessary assignment in compat_rw_copy_check_uvector()
*@ret_pointer is initialized to @fast_pointer thus the assignment is
redundant.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 04:54:38 -05:00
Randy Dunlap
16ebe911eb fs: FS_POSIX_ACL does not depend on BLOCK
- Fix a kconfig unmet dependency warning.
- Remove the comment that identifies which filesystems use POSIX ACL
  utility routines.
- Move the FS_POSIX_ACL symbol outside of the BLOCK symbol if/endif block
  because its functions do not depend on BLOCK and some of the filesystems
  that use it do not depend on BLOCK.

warning: (GENERIC_ACL && JFFS2_FS_POSIX_ACL && NFSD_V4 && NFS_ACL_SUPPORT && 9P_FS_POSIX_ACL) selects FS_POSIX_ACL which has unmet direct dependencies (BLOCK)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 03:30:37 -05:00
Steven Rostedt
3bc0ba4305 fs: Remove unlikely() from fget_light()
There's an unlikely() in fget_light() that assumes the file ref count
will be 1. Running the annotate branch profiler on a desktop that is
performing daily tasks (running firefox, evolution, xchat and is also part
of a distcc farm), it shows that the ref count is not 1 that often.

 correct incorrect      %    Function                  File              Line
 ------- ---------      -    --------                  ----              ----
1035099358 6209599193  85    fget_light              file_table.c         315

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 03:26:27 -05:00
Steven Rostedt
c2b3e74b78 fs: Remove unlikely() from fput_light()
In fput_light(), there's an unlikely(fput_needed), which running on
my normal desktop doing firefox, xchat, evolution and part of my distcc farm,
and running the annotate branch profiler shows that the unlikely is not
very unlikely.

 correct incorrect  %        Function             File              Line
 ------- ---------  -        --------             ----              ----
       0       48 100 fput_light                file.h               26
115828710 897415279  88 fput_light              file.h               26
865271179 5286128445  85 fput_light             file.h               26
19568539  8923664  31 fput_light                file.h               26
12353677  3562279  22 fput_light                file.h               26
  267691    67062  20 fput_light                file.h               26
15014853   348172   2 fput_light                file.h               26
  209258      205   0 fput_light                file.h               26
 1364164        0   0 fput_light                file.h               26

Which gives 1032903812 times it was correct and 6203351846 times it was
incorrect, or 85% incorrect.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 03:26:26 -05:00
Christoph Hellwig
2fe17c1075 fallocate should be a file operation
Currently all filesystems except XFS implement fallocate asynchronously,
while XFS forced a commit.  Both of these are suboptimal - in case of O_SYNC
I/O we really want our allocation on disk, especially for the !KEEP_SIZE
case where we actually grow the file with user-visible zeroes.  On the
other hand always commiting the transaction is a bad idea for fast-path
uses of fallocate like for example in recent Samba versions.   Given
that block allocation is a data plane operation anyway change it from
an inode operation to a file operation so that we have the file structure
available that lets us check for O_SYNC.

This also includes moving the code around for a few of the filesystems,
and remove the already unnedded S_ISDIR checks given that we only wire
up fallocate for regular files.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 02:25:31 -05:00
Christoph Hellwig
64c23e8687 make the feature checks in ->fallocate future proof
Instead of various home grown checks that might need updates for new
flags just check for any bit outside the mask of the features supported
by the filesystem.  This makes the check future proof for any newly
added flag.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 02:25:30 -05:00
Yang Ruirui
eb745dbccc staging: smbfs building fix
Building error for smbfs:

drivers/staging/smbfs/dir.c:286: error: static declaration of 'smbfs_dentry_operations' follows non-static declaration
drivers/staging/smbfs/proto.h:42: error: previous declaration of 'smbfs_dentry_operations' was here
drivers/staging/smbfs/dir.c:294: error: static declaration of 'smbfs_dentry_operations_case' follows non-static declaration
drivers/staging/smbfs/proto.h:41: error: previous declaration of 'smbfs_dentry_operations_case' was here
make[3]: *** [drivers/staging/smbfs/dir.o] Error 1
make[2]: *** [drivers/staging/smbfs] Error 2
make[1]: *** [drivers/staging] Error 2
make[1]: *** Waiting for unfinished jobs....

Fix it by removing static keywords

Signed-off-by: Yang Ruirui <ruirui.r.yang@tieto.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 01:50:52 -05:00
Al Viro
b1e75df45a tidy up around finish_automount()
do_add_mount() and mnt_clear_expiry() are not needed outside of
namespace.c anymore, now that namei has finish_automount() to
use.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 01:47:59 -05:00
Al Viro
15f9a3f3e1 don't drop newmnt on error in do_add_mount()
That gets rid of the kludge in finish_automount() - we need
to keep refcount on the vfsmount as-is until we evict it from
expiry list.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 01:41:58 -05:00
Al Viro
19a167af7c Take the completion of automount into new helper
... and shift it from namei.c to namespace.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 01:35:23 -05:00
Roland Dreier
4790f4dc5f Merge branches 'misc', 'mlx4', 'mthca', 'nes' and 'srp' into for-next 2011-01-16 21:22:41 -08:00
Tejun Heo
f06267104d RDMA: Update workqueue usage
* ib_wq is added, which is used as the common workqueue for infiniband
  instead of the system workqueue.  All system workqueue usages
  including flush_scheduled_work() callers are converted to use and
  flush ib_wq.

* cancel_delayed_work() + flush_scheduled_work() converted to
  cancel_delayed_work_sync().

* qib_wq is removed and ib_wq is used instead.

This is to prepare for deprecation of flush_scheduled_work().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-16 21:16:31 -08:00
Ivan Kokshaysky
f5de6ecc84 alpha: fix WARN_ON in __local_bh_enable()
Interrupts ought to be disabled _before_ irq_enter().

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Matt Turner <mattst88@monolith.freenet-rz.de>
2011-01-17 05:42:16 +01:00
Ivan Kokshaysky
e2609f6aa2 alpha: fix breakage caused by df9ee29270
Commit df9ee29270 made arch_local_irq_save and arch_local_irq_restore
static inline which with -Werror trips up on __set_hae() and _set_hae()
which are extern inline.  The naive solution is to make __set_hae() and
set_hae() static inline but for reasons described in commit d559d4a24a
this breaks the generic kernel build.  Instead, since this is architecture
specific code, this patch hard wires in the architecture specific method
f disabling and enabling interrupts.

Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2011-01-17 05:42:15 +01:00