Commit graph

229440 commits

Author SHA1 Message Date
Jan Kara
ca6e909f9b ext4: fix trimming of a single group
When ext4_trim_fs() is called to trim a part of a single group, the
logic will wrongly set last block of the interval to 'len' instead
of 'first_block + len'. Thus a shorter interval is possibly trimmed.
Fix it.

CC: Lukas Czerner <lczerner@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:30:39 -05:00
Andrew Morton
6c5a6cb998 ext4: fix uninitialized variable in ext4_register_li_request
fs/ext4/super.c: In function 'ext4_register_li_request':
fs/ext4/super.c:2936: warning: 'ret' may be used uninitialized in this function

It looks buggy to me, too.

Cc: Lukas Czerner <lczerner@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:30:17 -05:00
Theodore Ts'o
8aefcd557d ext4: dynamically allocate the jbd2_inode in ext4_inode_info as necessary
Replace the jbd2_inode structure (which is 48 bytes) with a pointer
and only allocate the jbd2_inode when it is needed --- that is, when
the file system has a journal present and the inode has been opened
for writing.  This allows us to further slim down the ext4_inode_info
structure.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:29:43 -05:00
Theodore Ts'o
353eb83c14 ext4: drop i_state_flags on architectures with 64-bit longs
We can store the dynamic inode state flags in the high bits of
EXT4_I(inode)->i_flags, and eliminate i_state_flags.  This saves 8
bytes from the size of ext4_inode_info structure, which when
multiplied by the number of the number of in the inode cache, can save
a lot of memory.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:18:25 -05:00
Theodore Ts'o
8a2005d3f8 ext4: reorder ext4_inode_info structure elements to remove unneeded padding
By reordering the elements in the ext4_inode_info structure, we can
reduce the padding needed on an x86_64 system by 16 bytes.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:13:42 -05:00
Theodore Ts'o
b05e6ae58a ext4: drop ec_type from the ext4_ext_cache structure
We can encode the ec_type information by using ee_len == 0 to denote
EXT4_EXT_CACHE_NO, ee_start == 0 to denote EXT4_EXT_CACHE_GAP, and if
neither is true, then the cache type must be EXT4_EXT_CACHE_EXTENT.
This allows us to reduce the size of ext4_ext_inode by another 8
bytes.  (ec_type is 4 bytes, plus another 4 bytes of padding)

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:13:26 -05:00
Theodore Ts'o
01f49d0b9d ext4: use ext4_lblk_t instead of sector_t for logical blocks
This fixes a number of places where we used sector_t instead of
ext4_lblk_t for logical blocks, which for ext4 are still 32-bit data
types.  No point wasting space in the ext4_inode_info structure, and
requiring 64-bit arithmetic on 32-bit systems, when it isn't
necessary.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:13:03 -05:00
Theodore Ts'o
f232109773 ext4: replace i_delalloc_reserved_flag with EXT4_STATE_DELALLOC_RESERVED
Remove the short element i_delalloc_reserved_flag from the
ext4_inode_info structure and replace it a new bit in i_state_flags.
Since we have an ext4_inode_info for every ext4 inode cached in the
inode cache, any savings we can produce here is a very good thing from
a memory utilization perspective.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:12:36 -05:00
Kazuya Mio
ad4fb9cafe ext4: fix 32bit overflow in ext4_ext_find_goal()
ext4_ext_find_goal() returns an ideal physical block number that the block
allocator tries to allocate first. However, if a required file offset is
smaller than the existing extent's one, ext4_ext_find_goal() returns
a wrong block number because it may overflow at
"block - le32_to_cpu(ex->ee_block)". This patch fixes the problem.

ext4_ext_find_goal() will also return a wrong block number in case
a file offset of the existing extent is too big. In this case,
the ideal physical block number is fixed in ext4_mb_initialize_context(),
so it's no problem.

reproduce:
# dd if=/dev/zero of=/mnt/mp1/tmp bs=127M count=1 oflag=sync
# dd if=/dev/zero of=/mnt/mp1/file bs=512K count=1 seek=1 oflag=sync
# filefrag -v /mnt/mp1/file
Filesystem type is: ef53
File size of /mnt/mp1/file is 1048576 (256 blocks, blocksize 4096)
 ext logical physical expected length flags
   0     128    67456             128 eof
/mnt/mp1/file: 2 extents found
# rm -rf /mnt/mp1/tmp
# echo $((512*4096)) > /sys/fs/ext4/loop0/mb_stream_req
# dd if=/dev/zero of=/mnt/mp1/file bs=512K count=1 oflag=sync conv=notrunc

result (linux-2.6.37-rc2 + ext4 patch queue):
# filefrag -v /mnt/mp1/file
Filesystem type is: ef53
File size of /mnt/mp1/file is 1048576 (256 blocks, blocksize 4096)
 ext logical physical expected length flags
   0       0    33280             128 
   1     128    67456    33407    128 eof
/mnt/mp1/file: 2 extents found

result(apply this patch):
# filefrag -v /mnt/mp1/file
Filesystem type is: ef53
File size of /mnt/mp1/file is 1048576 (256 blocks, blocksize 4096)
 ext logical physical expected length flags
   0       0    66560             128 
   1     128    67456    66687    128 eof
/mnt/mp1/file: 2 extents found

Signed-off-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:12:28 -05:00
Namhyung Kim
dabd991f9d ext4: add more error checks to ext4_mkdir()
Check return value of ext4_journal_get_write_access,
ext4_journal_dirty_metadata and ext4_mark_inode_dirty. Move brelse()
under 'out_stop' to release bh properly in case of journal error.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:11:16 -05:00
Eric Paris
f1dffc4c54 ext4: ext4_ext_migrate should use NULL not 0
ext4_ext_migrate() calls ext4_new_inode() and passes 0 instead of a pointer
to a struct qstr.  This patch uses NULL, to make it obvious to the caller
that this was a pointer.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:11:00 -05:00
Theodore Ts'o
f7c21177af ext4: Use ext4_error_file() to print the pathname to the corrupted inode
Where the file pointer is available, use ext4_error_file() instead of
ext4_error_inode().

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:10:55 -05:00
Dan Carpenter
f9a62d090c ext4: use IS_ERR() to check for errors in ext4_error_file
d_path() returns an ERR_PTR and it doesn't return NULL.  This is in
ext4_error_file() and no one actually calls ext4_error_file().

Signed-off-by: Dan Carpenter <error27@gmail.com>
2011-01-10 12:10:50 -05:00
Dan Carpenter
13195184a8 ext4: test the correct variable in ext4_init_pageio()
This is a copy and paste error.  The intent was to check
"io_page_cachep".  We tested "io_page_cachep" earlier.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:10:44 -05:00
Wang Sheng-Hui
1f605b3027 ext2: remove dead code in ext2_xattr_get
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Wang Sheng-Hui <crosslonelyover@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:10:37 -05:00
Wang Sheng-Hui
6e9510b0e0 ext2,ext3,ext4: clarify comment for extN_xattr_set_handle
Signed-off-by: Wang Sheng-Hui <crosslonelyover@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:10:30 -05:00
Theodore Ts'o
eaeef86718 ext4: clean up ext4_xattr_list()'s error code checking and return strategy
Any time you see code that tries to add error codes together, you
should want to claw your eyes out...

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-01-10 12:10:07 -05:00
Lukas Czerner
9325963667 ext4: remove warning message from ext4_issue_discard helper
ext4_issue_discard is supposed to be helper for calling discard, however
in case that underlying device does not support discard it prints out
the warning message and clears the DISCARD t_mount_opt flag. Since it
can be (and is) used by others, it should not do anything and let the
caller to handle the error case.

This commit removes warning message and flag setting from
ext4_issue_discard and use it just in place where it is really needed
(release_blocks_on_commit). FITRIM ioctl should not set any flags nor it
should print out warning messages, so get rid of the warning as well.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
2011-01-10 12:09:59 -05:00
Lukas Czerner
4f531501e4 ext4: fix possible overflow in ext4_trim_fs()
When determining last group through ext4_get_group_no_and_offset() the
result may be wrong in cases when range->start and range-len are too
big, because it may overflow when summing up those two numbers.

Fix that by checking range->len and limit its value to
ext4_blocks_count(). This commit was tested by myself with expected
result.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
2011-01-10 12:04:55 -05:00
Mattia Dongili
1a7d946993 sony-laptop: support new hotkeys on the P, Z and EC series
Add new mappings for assist, VAIO, zoom and eject buttons present on
refurbished P, Z and EC models.

Reported-by: Gyorgy Jeney <nog.lkml@gmail.com>
Reported-by: Stephan Mueller <smueller@chronox.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-01-10 12:00:22 -05:00
Linus Torvalds
a08948812b Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: (44 commits)
  hwmon: Support for Dallas Semiconductor DS620
  hwmon: driver for Sensirion SHT21 humidity and temperature sensor
  hwmon: Add humidity attribute to sysfs ABI
  hwmon: sysfs ABI updates
  hwmon: (via-cputemp) sync hotplug handling with coretemp/pkgtemp
  hwmon: (lm95241) Rewrite to avoid using macros
  hwmon: (applesmc) Fix checkpatch errors and fix value range checks
  hwmon: (applesmc) Update copyright information
  hwmon: (applesmc) Silence driver
  hwmon: (applesmc) Simplify feature sysfs handling
  hwmon: (applesmc) Dynamic creation of fan files
  hwmon: (applesmc) Extract all features generically
  hwmon: (applesmc) Handle new temperature format
  hwmon: (applesmc) Dynamic creation of temperature files
  hwmon: (applesmc) Introduce a register lookup table
  hwmon: (applesmc) Use pr_fmt and pr_<level>
  hwmon: (applesmc) Relax the severity of device init failure
  hwmon: (applesmc) Add MacBookAir3,1(3,2) support
  hwmon: (w83627hf) Use pr_fmt and pr_<level>
  hwmon: (w83627ehf) Use pr_fmt and pr_<level>
  ...
2011-01-10 08:57:46 -08:00
Linus Torvalds
0bd2cbcdfa Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (29 commits)
  of/flattree: forward declare struct device_node in of_fdt.h
  ipmi: explicitly include of_address.h and of_irq.h
  sparc: explicitly cast negative phandle checks to s32
  powerpc/405: Fix missing #{address,size}-cells in i2c node
  powerpc/5200: dts: refactor dts files
  powerpc/5200: dts: Change combatible strings on localbus
  powerpc/5200: dts: remove unused properties
  powerpc/5200: dts: rename nodes to prepare for refactoring dts files
  of/flattree: Update dtc to current mainline.
  of/device: Don't register disabled devices
  powerpc/dts: fix syntax bugs in bluestone.dts
  of: Fixes for OF probing on little endian systems
  of: make drivers depend on CONFIG_OF instead of CONFIG_PPC_OF
  of/flattree: Add of_flat_dt_match() helper function
  of_serial: explicitly include of_irq.h
  of/flattree: Refactor unflatten_device_tree and add fdt_unflatten_tree
  of/flattree: Reorder unflatten_dt_node
  of/flattree: Refactor unflatten_dt_node
  of/flattree: Add non-boottime device tree functions
  of/flattree: Add Kconfig for EARLY_FLATTREE
  ...

Fix up trivial conflict in arch/sparc/prom/tree_32.c as per Grant.
2011-01-10 08:57:03 -08:00
Mark Brown
0c51a4d8ab platform/x86: Consistently select LEDS Kconfig options
Currently the x86 platform devices are not consistent about selecting
or depending on the LEDs Kconfig variables, and this inconsistency
leads to Kconfig getting upset and refusing to offer LEDs (even on
non-x86 platforms):

drivers/platform/x86/Kconfig:422:error: recursive dependency detected!
drivers/platform/x86/Kconfig:422:       symbol EEEPC_WMI depends on ACPI_WMI
drivers/platform/x86/Kconfig:438:       symbol ACPI_WMI is selected by ACER_WMI
drivers/platform/x86/Kconfig:18:        symbol ACER_WMI depends on LEDS_CLASS
drivers/leds/Kconfig:10:        symbol LEDS_CLASS is selected by EEEPC_WMI

Fix this by always selecting rather than depending on the symbols as
slightly more drivers use this approach already and it seems more
user friendly.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-01-10 11:55:25 -05:00
Randy Dunlap
a46a780835 sony-laptop: fix sparse non-ANSI function warning
Fix sparse warning for non-ANSI function declaration:

drivers/platform/x86/sony-laptop.c:1134:35: warning: non-ANSI function declaration of function 'sony_nc_rfkill_update'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc:	Matthew Garrett <mjg@redhat.com>
Cc:	Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-01-10 11:55:25 -05:00
Randy Dunlap
7027d8b570 intel_ips: fix sparse non-ANSI function warning
Fix sparse warning for non-ANSI function declaration:

drivers/platform/x86/intel_ips.c:1477:25: warning: non-ANSI function declaration of function 'ips_link_to_i915_driver'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc:	Matthew Garrett <mjg@redhat.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-01-10 11:55:25 -05:00
Alexey Dobriyan
57cc7215b7 headers: kobject.h redux
Remove kobject.h from files which don't need it, notably,
sched.h and fs.h.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-10 08:51:44 -08:00
Alexey Dobriyan
37721e1b0c headers: path.h redux
Remove path.h from sched.h and other files.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-10 08:51:44 -08:00
Linus Torvalds
9f99a2f0e4 Merge branch 'stable/bug-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/bug-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/event: validate irq before get evtchn by irq
  xen/fb: fix potential memory leak
  xen/fb: fix xenfb suspend/resume race.
  xen: disable ACPI NUMA for PV guests
  xen/irq: Cleanup the find_unbound_irq
2011-01-10 08:48:46 -08:00
Linus Torvalds
8c8ae4e8cd Merge branch 'stable/generic' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/generic' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: HVM X2APIC support
  apic: Move hypervisor detection of x2apic to hypervisor.h
2011-01-10 08:48:29 -08:00
Linus Torvalds
a1e8fad590 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  slub: Fix a crash during slabinfo -v
  tracing/slab: Move kmalloc tracepoint out of inline code
  slub: Fix slub_lock down/up imbalance
  slub: Fix build breakage in Documentation/vm
  slub tracing: move trace calls out of always inlined functions to reduce kernel code size
  slub: move slabinfo.c to tools/slub/slabinfo.c
2011-01-10 08:38:01 -08:00
Linus Torvalds
e3166331a3 Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  Documentation/kbuild: add info that 'choice' can have a symbol name
  kbuild: add numeric --set-val option to scripts/config
  headers_check: Fix warning text
  headers_check: better search for functions in headers
  scripts/coccinelle: update for compatability with Coccinelle 0.2.4
  tags: put function prototypes back!
  Kconfig: fix single letter command in scripts/config
  gitignore: add scripts/recordmcount
2011-01-10 08:29:25 -08:00
Linus Torvalds
1693ed284f Merge branch 'packaging' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'packaging' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  deb-pkg: s/hdr/kernel_headers_/ && s/header/libc_headers_/
  deb-pkg: Make deb-pkg generate a seperate linux-libc-dev deb
  kbuild: create linux-headers package in deb-pkg
  kbuild, deb-pkg: support overriding userland architecture
  kbuild, deb-pkg: select userland architecture based on UTS_MACHINE
  kbuild, deb-pkg: Fix build with paranoid umask
2011-01-10 08:28:38 -08:00
Linus Torvalds
f28b1c8aaa Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  nconf: handle comment entries within choice/endchoice
  kconfig: fix warning
  kconfig: Make expr_copy() take a const argument
  kconfig: simplify select-with-unmet-direct-dependency warning
  kconfig: add more S_INT and S_HEX consistency checks
  kconfig: fix `zconfdebug' extern declaration
  kconfig/conf: merge duplicate switch's case
  kconfig: fix typos
  kbuild/gconf: add dummy inline for bind_textdomain_codeset()
  kbuild/nconf: fix spaces damage
  kconfig: nuke second argument of conf_write_symbol()
  kconfig: do not define AUTOCONF_INCLUDED
  kconfig: the day kconfig warns about "select"-abuse has come
2011-01-10 08:28:17 -08:00
Linus Torvalds
0c05384a5a Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  mkuboot.sh: Fail if mkimage is missing
  gen_init_cpio: checkpatch fixes
  gen_init_cpio: Avoid race between call to stat() and call to open()
  modpost: Fix address calculation in reloc_location()
  Make fixdep error handling more explicit
  checksyscalls: Fix stand-alone usage
  modpost: Put .zdebug* section on white list
  kbuild: fix interaction of CONFIG_IKCONFIG and KCONFIG_CONFIG
  kbuild: export linux/{a.out,kvm,kvm_para}.h on headers_install_all
  kbuild: introduce HDR_ARCH_LIST for headers_install_all
  headers_install: check exit status of unifdef
  gen_init_cpio: remove leading `/' from file names
  scripts/genksyms: fix header usage
  fixdep: use hash table instead of a single array
2011-01-10 08:27:52 -08:00
Linus Torvalds
1542dec1c9 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  pata_platform: Remove CONFIG_HAVE_PATA_PLATFORM's dependencies.
  pata_hpt37x: actually limit HPT370 to UltraDMA/66
  pata_hpt3x2n: coding style cleanup
  pata_hpt37x: coding style cleanup
  pata_hpt366: coding style cleanup
  pata_hpt3x2n: calculate average f_CNT
  pata_hpt3x2n: clarify about HPT371N support
  pata_hpt{37x|3x2n}: SATA mode filtering
  [libata] avoid needlessly passing around ptr to SCSI completion func
  [libata] new driver acard_ahci, for ATP8620 host controller
2011-01-10 08:22:33 -08:00
Jiri Pirko
12f7e03643 perf sched: Use PTHREAD_STACK_MIN to avoid pthread_attr_setstacksize() fail
on ppc64:
/usr/include/bits/local_lim.h:#define PTHREAD_STACK_MIN	131072

therefore following set of commands:

gives:
perf.2.6.37test: builtin-sched.c:493: create_tasks: Assertion `!(err)' failed.

So make sure we do not set stack size lower than PTHREAD_STACK_MIN.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20110110160417.GB2685@psychotron.brq.redhat.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-01-10 14:16:00 -02:00
Linus Torvalds
facc7a96d4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (34 commits)
  HID: roccat: Update sysfs attribute doc
  HID: roccat: don't use #pragma pack
  HID: roccat: Add support for Roccat Kone[+] v2
  HID: roccat: reduce number of functions in kone and pyra drivers
  HID: roccat: declare meaning of pack pragma usage in driver headers
  HID: roccat: use class for char device for sysfs attribute creation
  sysfs: Introducing binary attributes for struct class
  HID: hidraw: add compatibility ioctl() for 32-bit applications.
  HID: hid-picolcd: Fix memory leak in picolcd_debug_out_report()
  HID: picolcd: fix misuse of logical operation in place of bitop
  HID: usbhid: base runtime PM on modern API
  HID: replace offsets values with their corresponding BTN_* defines
  HID: hid-mosart: support suspend/resume
  HID: hid-mosart: ignore buttons report
  HID: hid-picolcd: don't use flush_scheduled_work()
  HID: simplify an index check in hid_lookup_collection
  HID: Hoist assigns from ifs
  HID: Remove superfluous __inline__
  HID: Use vzalloc for vmalloc/memset(,0...)
  HID: Add and use hid_<level>: dev_<level> equivalents
  ...
2011-01-10 08:15:37 -08:00
Linus Torvalds
c8940eca75 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  spi / PM: Support dev_pm_ops
  PM: Prototype the pm_generic_ operations
  PM / Runtime: Generic resume shouldn't set RPM_ACTIVE unconditionally
  PM: Use dev_name() in core device suspend and resume routines
  PM: Permit registration of parentless devices during system suspend
  PM: Replace the device power.status field with a bit field
  PM: Remove redundant checks from core device resume routines
  PM: Use a different list of devices for each stage of device suspend
  PM: Avoid compiler warning in pm_noirq_op()
  PM: Use pm_wakeup_pending() in __device_suspend()
  PM / Wakeup: Replace pm_check_wakeup_events() with pm_wakeup_pending()
  PM: Prevent dpm_prepare() from returning errors unnecessarily
  PM: Fix references to basic-pm-debugging.txt in drivers-testing.txt
  PM / Runtime: Add synchronous runtime interface for interrupt handlers (v3)
  PM / Hibernate: When failed, in_suspend should be reset
  PM / Hibernate: hibernation_ops->leave should be checked too
  Freezer: Fix a race during freezing of TASK_STOPPED tasks
  PM: Use proper ccflag flag in kernel/power/Makefile
  PM / Runtime: Fix comments to match runtime callback code
2011-01-10 08:14:53 -08:00
Linus Torvalds
78c92a9fd4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: use split transaction timeout only for split transactions
  firewire: ohci: consolidate context status flags
  firewire: ohci: cache the context run bit
  firewire: ohci: flush AT contexts after bus reset - addendum
  firewire: ohci: flush AT contexts after bus reset for OHCI 1.2
  firewire: net: set carrier state at ifup
  firewire: net: add carrier detection
  firewire: net: ratelimit error messages
  firewire: ohci: restart iso DMA contexts on resume from low power mode
  firewire: ohci: restore GUID on resume.
  firewire: ohci: use common buffer for self IDs and AR descriptors
  firewire: ohci: optimize iso context checks in the interrupt handler
  firewire: make PHY packet header format consistent
  firewire: ohci: properly clear posted write errors
  firewire: ohci: flush MMIO writes in the interrupt handler
  firewire: ohci: fix AT context initialization error handling
  firewire: ohci: Asynchronous Reception rewrite
  firewire: core: Update WARN uses
  firewire: nosy: char device is not seekable
2011-01-10 08:14:02 -08:00
Linus Torvalds
b65f0d673a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: unfold nilfs_dat_inode function
  nilfs2: do not pass sbi to functions which can get it from inode
  nilfs2: get rid of nilfs_mount_options structure
  nilfs2: simplify nilfs_mdt_freeze_buffer
  nilfs2: get rid of loaded flag from nilfs object
  nilfs2: fix a checkpatch error in page.c
  nilfs2: fiemap support
  nilfs2: mark buffer heads as delayed until the data is written to disk
  nilfs2: call nilfs_error inside bmap routines
  fs/nilfs2/super.c: Use printf extension %pV
  MAINTAINERS: add nilfs2 git tree entry
2011-01-10 07:50:40 -08:00
Linus Torvalds
f3ea597251 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: use CreationTime like an i_generation field
  cifs: switch cifs_open and cifs_create to use CIFSSMBUnixSetFileInfo
  cifs: show "acl" in DebugData Features when it's compiled in
  cifs: move "ntlmssp" and "local_leases" options out of experimental code
  cifs: replace some hardcoded values with preprocessor constants
  cifs: remove unnecessary locking around sequence_number
  [CIFS] Fix minor merge conflict in fs/cifs/dir.c
  CIFS: Simplify cifs_open code
  CIFS: Simplify non-posix open stuff (try #2)
  CIFS: Add match_port check during looking for an existing connection (try #4)
  CIFS: Simplify ipv*_connect functions into one (try #4)
  cifs: Support NTLM2 session security during NTLMSSP authentication [try #5]
  cifs: don't overwrite dentry name in d_revalidate
2011-01-10 07:47:11 -08:00
Joe Jin
110e7c7e4f xen/event: validate irq before get evtchn by irq
When retrieving the event channel number from irq, the irq
number may not be valid under some conditions.

So far that can be when we suspend/resume and irq ends with -1.
Validate and return sanitized irq and provide diagnostics information.

[v3: added unlikely on the WARN path]
[v2: reworded the commit message]
Signed-off-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
2011-01-10 10:46:32 -05:00
Joe Jin
fc550e9592 xen/fb: fix potential memory leak
This patch fixes a potential memory leak when xenfb connect to
the backend fails.

Thanks for Ian's review and comments.

[v2: reworded the commit message a bit]

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
2011-01-10 10:46:31 -05:00
Joe Jin
731f3ab66a xen/fb: fix xenfb suspend/resume race.
When migrating guests over a long period we hit this:

<1>BUG: unable to handle kernel paging request at 0000000b819fdb98
<1>IP: [<ffffffff812a588f>] notify_remote_via_irq+0x13/0x34
<4>PGD 94b10067 PUD 0
<0>Oops: 0000 [#1] SMP
.. snip..
Call Trace:
 [<ffffffff812712c9>] xenfb_send_event+0x5c/0x5e
 [<ffffffff8100ea5f>] ? xen_restore_fl_direct_end+0x0/0x1
 [<ffffffff81438d80>] ? _spin_unlock_irqrestore+0x16/0x18
 [<ffffffff812714ee>] xenfb_refresh+0x1b1/0x1d7
 [<ffffffff81270568>] ? sys_imageblit+0x1ac/0x458
 [<ffffffff81271786>] xenfb_imageblit+0x2f/0x34
 [<ffffffff8126a3e5>] soft_cursor+0x1b5/0x1c8
 [<ffffffff8126a137>] bit_cursor+0x4b6/0x4d7
 [<ffffffff8100ea5f>] ? xen_restore_fl_direct_end+0x0/0x1
 [<ffffffff81438d80>] ? _spin_unlock_irqrestore+0x16/0x18
 [<ffffffff81269c81>] ? bit_cursor+0x0/0x4d7
 [<ffffffff812656b7>] fb_flashcursor+0xff/0x111
 [<ffffffff812655b8>] ? fb_flashcursor+0x0/0x111
 [<ffffffff81071812>] worker_thread+0x14d/0x1ed
 [<ffffffff81075a8c>] ? autoremove_wake_function+0x0/0x3d
 [<ffffffff81438d80>] ? _spin_unlock_irqrestore+0x16/0x18
 [<ffffffff810716c5>] ? worker_thread+0x0/0x1ed
 [<ffffffff810756e3>] kthread+0x6e/0x76
 [<ffffffff81012dea>] child_rip+0xa/0x20
 [<ffffffff81011fd1>] ? int_ret_from_sys_call+0x7/0x1b
 [<ffffffff8101275d>] ? retint_restore_args+0x5/0x6
 [<ffffffff81012de0>] ? child_rip+0x0/0x20
Code: 6b ff 0c 8b 87 a4 db 9f 81 66 85 c0 74 08 0f b7 f8 e8 3b ff ff ff c9
c3 55 48 89 e5 48 83 ec 10 0f 1f 44 00 00 89 ff 48 6b ff 0c <8b> 87 a4 db 9f
81 66 85 c0 74 14 48 8d 75 f0 0f b7 c0 bf 04 00
RIP  [<ffffffff812a588f>] notify_remote_via_irq+0x13/0x34
 RSP <ffff8800e7bf7bd0>
CR2: 0000000b819fdb98
---[ end trace 098b4b74827595d0 ]---

The root cause of the panic is the race between the resume and reconnect to the backend.

Clearing the 'update_wanted' flag of xenfb before disconnecting from the
backend fixes this issue.

Signed-off-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
2011-01-10 10:46:30 -05:00
Ian Campbell
c1f5db1a53 xen: disable ACPI NUMA for PV guests
Xen does not currently expose PV-NUMA information to PV
guests. Therefore disable NUMA for the time being to prevent the
kernel picking up on an host-level NUMA information which it might
come across in the firmware.

[ Added comment - Jeremy ]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-01-10 10:46:30 -05:00
Linus Torvalds
f9f265f355 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
  dlm: sanitize work_start() in lowcomms.c
  dlm: reduce cond_resched during send
  dlm: use TCP_NODELAY
  dlm: Use cmwq for send and receive workqueues
  dlm: Handle application limited situations properly.
2011-01-10 07:46:26 -08:00
Linus Torvalds
7d44b04401 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: fix ioctl ABI
  fuse: allow batching of FORGET requests
  fuse: separate queue for FORGET requests
  fuse: ioctl cleanup

Fix up trivial conflict in fs/fuse/inode.c due to RCU lookup having done
the RCU-freeing of the inode in fuse_destroy_inode().
2011-01-10 07:43:54 -08:00
Randy Dunlap
0dc1488527 pipe_fs_i.h: fix kernel-doc warning
Fix kernel-doc notation warnings in pipe_fs_i.h:

  Warning(include/linux/pipe_fs_i.h:58): No description found for parameter 'buffers'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-10 07:38:54 -08:00
Randy Dunlap
175881db89 hrtimer.h: fix kernel-doc warning
Fix new kernel-doc notation warning in hrtimer.h:

  Warning(include/linux/hrtimer.h:150): Excess struct/union/enum/typedef member 'first' description in 'hrtimer_clock_base'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-10 07:38:53 -08:00
Randy Dunlap
2a8c0c6848 fs: fix dcache.h kernel-doc notation
Fix new kernel-doc notation warning in dcache.h:

  Warning(include/linux/dcache.h:316): Excess function parameter 'Returns' description in '__d_rcu_to_refcount'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc:	Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-10 07:38:53 -08:00