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Author SHA1 Message Date
Jarkko Nikula 40246e0003 ARM: OMAP: mcbsp: Move out omap_mcbsp_register_board_cfg from plat-omap/devices.c
Only OMAP1s are using omap_mcbsp_register_board_cfg after OMAP2+ hwmod
conversion so it can be moved to mach-omap1/mcbsp.c.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-26 17:46:35 -07:00
Jarkko Nikula 00a327c05c ARM: OMAP: mcbsp: Remove unused variables from platform data
These variables got unused after McBSP was converted to use resource
structures.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-26 16:35:31 -07:00
Tony Lindgren 48b48fc996 Merge branch 'for_3.2/pm-cleanup' of git://gitorious.org/khilman/linux-omap-pm into cleanup 2011-09-22 16:38:46 -07:00
Tony Lindgren 7a04c4cbf7 Merge branch 'for_3.2/omap_device' of git://gitorious.org/khilman/linux-omap-pm into cleanup 2011-09-22 16:38:39 -07:00
Kevin Hilman fbe01f51a8 ARM: 7082/1: platform_device: pdev_archdata: add omap_device pointer
Add omap_device pointer to the ARM-specific arch data in the
platform_device.  This will be used to attach OMAP-specific
device-data to the platform device with device lifetime.

Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-21 10:45:59 -07:00
Tony Lindgren f8cf8e47fb ARM: OMAP2+: Fix missing inline functions for Makefile cleanup
Commit f41caddbe7 (omap2+: Use
Kconfig symbol in Makefile instead of obj-y) cleaned up the
omap2+ Makefile. However this did not account for the inline
functions that are now needed for board_flash_init and
board_nand_init.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-20 15:57:39 -07:00
Kevin Hilman dca2d0eb59 OMAP3: PM: fix UART handling when using no_console_suspend
During the idle/suspend path, we expect the console lock to be held so
that no console output is done during/after the UARTs are idled.

However, when using the no_console_suspend argument on the
command-line, the console driver does not take the console lock.  This
allows the possibility of console activity after UARTs have been
disabled.

To fix, update the current is_suspending() to also check the
console_suspend_enabled flag.

Reported-by: Abhilash Koyamangalath <abhilash.kv@ti.com>
Tested-by: Abhilash Koyamangalath <abhilash.kv@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-16 09:44:50 -07:00
Kevin Hilman d66b3fe436 OMAP: omap_device: decouple platform_device from omap_device
Rather than embedding a struct platform_device inside a struct
omap_device, decouple them, leaving only a pointer to the
platform_device inside the omap_device.

Use the arch-specific data field of the platform_device (pdev_archdata)
to add an omap_device pointer after the platform_device has been created.

Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15 16:35:47 -07:00
Kevin Hilman 9f8b6949d7 OMAP: omap_device: _disable_idle_on_suspend() takes platform_device pointer
Public omap_device functions need to take platform_device pointers,
conversion to omap_device pointers is done internal to the omap_device
layer.

Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15 16:35:47 -07:00
Kevin Hilman bfae4f8ffa OMAP: omap_device: device register functions now take platform_device pointer
The internal device register functions do not need or use any omap_device
internals, so pass in a platform_device pointer instead of an omap_device
pointer.

Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15 16:35:46 -07:00
Kevin Hilman 3528c58eb9 OMAP: omap_device: when building return platform_device instead of omap_device
All of the device init and device driver interaction with omap_device
is done using platform_device pointers.  To make this more explicit,
have omap_device return a platform_device pointer instead of an
omap_device pointer.

All current users of the omap_device pointer were only using it to get
at the platform_device pointer or struct device pointer, so fixing all
of the users was trivial.

This also makes it more difficult for device init code to directly
access members of struct omap_device, and allows for easier changing
of omap_device internals.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15 16:35:46 -07:00
Kevin Hilman a2a28ad996 OMAP: omap_device: remove internal functions from omap_device.h
The *_device_register() functions and the count/fill resources functions
are internal to omap_device and do not need to be in the header.

Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15 16:35:45 -07:00
Grazvydas Ignotas 47c3e5d806 OMAP: omap_device: make latency autoadjust messages debug
During normal system operation warning messages similar to this
are appearing quite often:
omap_device: omap4-keypad.-1: new worst case activate latency 0: 61035

This doesn't seem to be reporting a problem, nor is it very useful for
non-developers, so reduce it to debug level.

Acked-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15 16:35:45 -07:00
Kevin Hilman 49882c9940 OMAP: omap_device: replace debug/warning/error prints with dev_* macros
For consistency in kernel printk output for devices, use dev_dbg(),
dev_warn(), dev_err() instead of pr_debug(), pr_warning() and
pr_err(), some of which currently use direct access of name from
platform_device and others of which use dev_name().  Using the dev_*
versions uses the standard device naming from the driver core.

Some pr_* prints were not converted with this patch since they are
used before the platform_device and struct device are created so
neither the dev_* prints or dev_name() is valid.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15 16:35:45 -07:00
Jarkko Nikula 796ba283b0 omap: mcbsp: Remove omap device API
struct omap_device *od is only set with find_omap_device_by_dev but not used
otherwise so remove them and references to omap device API.

Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
2011-09-15 16:35:44 -07:00
Tony Lindgren ceb1c532ba Merge branch 'omap_chip_remove_cleanup_3.2' of git://git.pwsan.com/linux-2.6 into cleanup 2011-09-15 16:06:11 -07:00
Paul Walmsley 00c46b3069 OMAP: id: remove OMAP_CHIP declarations, code
Now that all of the users of the OMAP_CHIP bitfield code have been converted
to use lists, the OMAP_CHIP code, data, and declarations can be removed.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-09-14 17:23:39 -06:00
Paul Walmsley d6504acd21 OMAP2+: hwmod: remove OMAP_CHIP*
At Tony's request, remove the OMAP_CHIP* flags from the hwmod data, and
replace it instead with chip family, variant, and ES level-specific lists
of hwmods to register.

Thanks to Gražvydas Ignotas <notasas@gmail.com> for finding a bug in the
AM3517/3505 support, and for other review comments.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Gražvydas Ignotas <notasas@gmail.com>
2011-09-14 17:23:19 -06:00
Paul Walmsley 8179488a36 OMAP: powerdomain: remove omap_chip bitmasks
At Tony's request, remove the omap_chip bitmasks from the powerdomain
definitions.  Instead, initialize powerdomains based on one or more
lists that are applicable to a particular SoC family, variant, and
silicon revision.

Gražvydas Ignotas <notasas@gmail.com> found and reported a bug in a
related patch that also applied to this patch - thanks Gražvydas.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Gražvydas Ignotas <notasas@gmail.com>
2011-09-14 17:20:44 -06:00
Paul Walmsley 129c65ee66 OMAP: powerdomain: split pwrdm_init() into two functions
In preparation for OMAP_CHIP() removal, split pwrdm_init() into three
functions.  This allows some of them to be called multiple times: for
example, pwrdm_register_pwrdms() can be called once to register
powerdomains that are common to a group of SoCs, and once to register
powerdomains that are specific to a single SoC.

The appropriate order to call these functions - which is enforced
by the code - is:

1. pwrdm_register_platform_funcs()
2. pwrdm_register_pwrdms() (can be called multiple times)
3. pwrdm_complete_init()

Convert the OMAP2, 3, and 4 powerdomain init code to use these new
functions.

While here, improve documentation, and increase CodingStyle
conformance by shortening some local variable names.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-09-14 17:20:44 -06:00
Paul Walmsley a5ffef6af1 OMAP: clockdomain code/data: remove omap_chip bitmask from struct clockdomain
At Tony's request, remove the omap_chip bitmasks from the clockdomain
and clockdomain dependency definitions.  Instead, initialize
clockdomains based on one or more lists that are applicable to a
particular SoC family, variant, and silicon revision.

Tony Lindgren <tony@atomide.com> found a bug in a previous version of this
patch - thanks Tony.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
2011-09-14 16:01:21 -06:00
Paul Walmsley 08cb9703e2 OMAP: clockdomain: split clkdm_init()
In preparation for OMAP_CHIP() removal, split clkdm_init() into four
functions.  This allows some of them to be called multiple times: for
example, clkdm_register_clkdms() can be called once to register
clockdomains that are common to a group of SoCs, and once to register
clockdomains that are specific to a single SoC.

The appropriate order to call these functions - which is enforced
by the code - is:

1. clkdm_register_platform_funcs()
2. clkdm_register_clkdms() (can be called multiple times)
3. clkdm_register_autodeps() (optional; deprecated)
4. clkdm_complete_init()

Convert the OMAP2, 3, and 4 clockdomain init code to use these new
functions.

While here, improve documentation, and increase CodingStyle
conformance by shortening some local variable names.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-09-14 16:01:20 -06:00
Paul Walmsley 057673d8bd OMAP2+: id: remove OMAP_REVBITS_* macros
The OMAP_REVBITS_* macros are just used as otherwise meaningless
aliases for the numbers zero through five, so remove these macros.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Abhilash Koyamangalath <abhilash.kv@ti.com>
2011-09-14 15:45:03 -06:00
Paul Walmsley 3b32b7d62e OMAP3: id: remove duplicate code for testing SoC ES level
omap3_cpuinfo() contains essentially duplicated code from
omap3_check_revision(), just for the purpose of determining the chip ES level.
Set the cpu_rev char array pointer in omap3_check_revision() instead,
and drop the now-useless code from omap3_cpuinfo().

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Abhilash Koyamangalath <abhilash.kv@ti.com>
2011-09-14 15:44:55 -06:00
Paul Walmsley 51ec811a29 OMAP3: id: add fallthrough warning; fix some CodingStyle issues
Emit a warning to the console in omap3_check_revision() if that code
cannot determine what type of SoC the system is currently running on.

Remove some extra whitespace, remove some duplicate code, and
add an appropriate comment to a fallthrough case.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Hemant Pedanekar <hemantp@ti.com>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Abhilash Koyamangalath <abhilash.kv@ti.com>
2011-09-14 15:44:44 -06:00
Paul Walmsley 9ed2ba7aa7 OMAP3: id: use explicit omap_revision codes for 3505/3517 ES levels
Use explicit revision codes for OMAP/AM 3505/3517 ES levels, as the rest
of the OMAP2+ SoCs do in mach-omap2/cpu.c.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Sanjeev Premi <premi@ti.com>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Abhilash Koyamangalath <abhilash.kv@ti.com>
2011-09-14 15:44:30 -06:00
Paul Walmsley 91d92d6cc8 OMAP3: id: remove useless strcpy()s
omap3_cpuinfo() is filled with useless strcpy() calls; remove them.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Sanjeev Premi <premi@ti.com>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Abhilash Koyamangalath <abhilash.kv@ti.com>
2011-09-14 15:44:14 -06:00
Paul Walmsley 1f1b0353aa OMAP3: id: remove identification codes that only correspond to marketing names
The OMAP3505/AM3505 appears to be based on the same silicon as the
OMAP3517/AM3517, with some features disabled via eFuse bits.  Follow
the same practice as OMAP3430 and identify these devices internally as
part of the OMAP3517/AM3517 family.

The OMAP3503/3515/3525/3530 chips appear to be based on the same silicon
as the OMAP3430, with some features disabled via eFuse bits.  Identify
these devices internally as part of the OMAP3430 family.

Remove the old OMAP35XX_CLASS, which actually covered two very different
chip families.  The OMAP3503/3515/3525/3530 chips will now be covered by
OMAP343X_CLASS, since the silicon appears to be identical.  For the
OMAP3517/AM3517 family, create a new class, OMAP3517_CLASS.

Thanks to Tony Lindgren <tony@atomide.com> for some help with the second
revision of this patch.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Sanjeev Premi <premi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Abhilash Koyamangalath <abhilash.kv@ti.com>
2011-09-13 19:52:13 -06:00
Linus Torvalds b6fd41e29d Linux 3.1-rc6 2011-09-12 14:02:02 -07:00
Linus Torvalds 8cb3ed17cb Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm: Remove duplicate "return" statement
  drm/nv04/crtc: Bail out if FB is not bound to crtc
  drm/nouveau: fix nv04_sgdma_bind on non-"4kB pages" archs
  drm/nouveau: properly handle allocation failure in nouveau_sgdma_populate
  drm/nouveau: fix oops on pre-semaphore hardware
  drm/nv50/crtc: Bail out if FB is not bound to crtc
  drm/radeon/kms: fix DP detect and EDID fetch for DP bridges
2011-09-12 13:49:07 -07:00
Linus Torvalds 4c7527821c Merge branch 'fixes' of git://git.linaro.org/people/arnd/arm-soc
* 'fixes' of git://git.linaro.org/people/arnd/arm-soc:
  ARM: CSR: add missing sentinels to of_device_id tables
  ARM: cns3xxx: Fix newly introduced warnings in the PCIe code
  ARM: cns3xxx: Fix compile error caused by hardware.h removed
  ARM: davinci: fix cache flush build error
  ARM: davinci: correct MDSTAT_STATE_MASK
  ARM: davinci: da850 EVM: read mac address from SPI flash
  OMAP: omap_device: fix !CONFIG_SUSPEND case in _noirq handlers
  OMAP2430: hwmod: musb: add missing terminator to omap2430_usbhsotg_addrs[]
  OMAP3: clock: indicate that gpt12_fck and wdt1_fck are in the WKUP clockdomain
  OMAP4: clock: fix compile warning
  OMAP4: clock: re-enable previous clockdomain enable/disable sequence
  OMAP: clockdomain: Wait for powerdomain to be ON when using clockdomain force wakeup
  OMAP: powerdomains: Make all powerdomain target states as ON at init
2011-09-12 11:51:35 -07:00
Mathieu Desnoyers 14d01ff534 ioctl: register LTTng ioctl
The LTTng 2.0 kernel tracer (stand-alone module package, available at
http://lttng.org) uses the 0xF6 ioctl range for tracer control and
transport operations.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-12 11:50:56 -07:00
Linus Torvalds 0b001b2eda Merge branch 'for-linus' of git://github.com/chrismason/linux
* 'for-linus' of git://github.com/chrismason/linux:
  Btrfs: add dummy extent if dst offset excceeds file end in
  Btrfs: calc file extent num_bytes correctly in file clone
  btrfs: xattr: fix attribute removal
  Btrfs: fix wrong nbytes information of the inode
  Btrfs: fix the file extent gap when doing direct IO
  Btrfs: fix unclosed transaction handle in btrfs_cont_expand
  Btrfs: fix misuse of trans block rsv
  Btrfs: reset to appropriate block rsv after orphan operations
  Btrfs: skip locking if searching the commit root in csum lookup
  btrfs: fix warning in iput for bad-inode
  Btrfs: fix an oops when deleting snapshots
2011-09-12 11:47:49 -07:00
Miklos Szeredi 5dfcc87fd7 fuse: fix memory leak
kmemleak is reporting that 32 bytes are being leaked by FUSE:

  unreferenced object 0xe373b270 (size 32):
  comm "fusermount", pid 1207, jiffies 4294707026 (age 2675.187s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<b05517d7>] kmemleak_alloc+0x27/0x50
    [<b0196435>] kmem_cache_alloc+0xc5/0x180
    [<b02455be>] fuse_alloc_forget+0x1e/0x20
    [<b0245670>] fuse_alloc_inode+0xb0/0xd0
    [<b01b1a8c>] alloc_inode+0x1c/0x80
    [<b01b290f>] iget5_locked+0x8f/0x1a0
    [<b0246022>] fuse_iget+0x72/0x1a0
    [<b02461da>] fuse_get_root_inode+0x8a/0x90
    [<b02465cf>] fuse_fill_super+0x3ef/0x590
    [<b019e56f>] mount_nodev+0x3f/0x90
    [<b0244e95>] fuse_mount+0x15/0x20
    [<b019d1bc>] mount_fs+0x1c/0xc0
    [<b01b5811>] vfs_kern_mount+0x41/0x90
    [<b01b5af9>] do_kern_mount+0x39/0xd0
    [<b01b7585>] do_mount+0x2e5/0x660
    [<b01b7966>] sys_mount+0x66/0xa0

This leak report is consistent and happens once per boot on
3.1.0-rc5-dirty.

This happens if a FORGET request is queued after the fuse device was
released.

Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-12 11:47:10 -07:00
Miklos Szeredi 24114504c4 fuse: fix flock breakage
Commit 37fb3a30b4 ("fuse: fix flock") added in 3.1-rc4 caused flock() to
fail with ENOSYS with the kernel ABI version 7.16 or earlier.

Fix by falling back to testing FUSE_POSIX_LOCKS for ABI versions 7.16
and earlier.

Reported-by: Martin Ziegler <ziegler@email.mathematik.uni-freiburg.de>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Tested-by: Martin Ziegler <ziegler@email.mathematik.uni-freiburg.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-12 11:47:10 -07:00
Arnd Bergmann 15ce92861f Merge branch 'for_3.1/pm-fixes-2' of git://gitorious.org/khilman/linux-omap-pm into fixes 2011-09-12 20:30:22 +02:00
Arnd Bergmann d035953e59 Merge branch 'sirf/fixes' into fixes 2011-09-12 14:59:37 +00:00
Linus Torvalds 87adf1c66c Merge branch 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus
* 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus:
  [media] vp7045: fix buffer setup
  [media] nuvoton-cir: simplify raw IR sample handling
  [media] [Resend] viacam: Don't explode if pci_find_bus() returns NULL
  [media] v4l2: Fix documentation of the codec device controls
  [media] gspca - sonixj: Fix the darkness of sensor om6802 in 320x240
  [media] gspca - sonixj: Fix wrong register mask for sensor om6802
  [media] gspca - ov519: Fix LED inversion of some ov519 webcams
  [media] pwc: precedence bug in pwc_init_controls()
2011-09-11 14:58:47 -07:00
Linus Torvalds 14f69ec706 Merge branch 'for-linus' of git://openrisc.net/~jonas/linux
* 'for-linus' of git://openrisc.net/~jonas/linux:
  Add missing DMA ops
  openrisc: don't use pt_regs in struct sigcontext
2011-09-11 14:55:43 -07:00
Li Zefan d525e8ab02 Btrfs: add dummy extent if dst offset excceeds file end in
You can see there's no file extent with range [0, 4096]. Check this by
btrfsck:

 # btrfsck /dev/sda7
 root 5 inode 258 errors 100
 ...

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:25 -04:00
Li Zefan d72c0842ff Btrfs: calc file extent num_bytes correctly in file clone
num_bytes should be 4096 not 12288.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:25 -04:00
David Sterba 4815053aba btrfs: xattr: fix attribute removal
An attribute is not removed by 'setfattr -x attr file' and remains
visible in attr list. This makes xfstests/062 pass again.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:25 -04:00
Miao Xie a39f752143 Btrfs: fix wrong nbytes information of the inode
If we write some data into the data hole of the file(no preallocation for this
hole), Btrfs will allocate some disk space, and update nbytes of the inode, but
the other element--disk_i_size needn't be updated. At this condition, we must
update inode metadata though disk_i_size is not changed(btrfs_ordered_update_i_size()
return 1).

 # mkfs.btrfs /dev/sdb1
 # mount /dev/sdb1 /mnt
 # touch /mnt/a
 # truncate -s 856002 /mnt/a
 # dd if=/dev/zero of=/mnt/a bs=4K count=1 conv=nocreat,notrunc
 # umount /mnt
 # btrfsck /dev/sdb1
 root 5 inode 257 errors 400
 found 32768 bytes used err is 1

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:25 -04:00
Miao Xie 0c1a98c814 Btrfs: fix the file extent gap when doing direct IO
When we write some data to the place that is beyond the end of the file
in direct I/O mode, a data hole will be created. And Btrfs should insert
a file extent item that point to this hole into the fs tree. But unfortunately
Btrfs forgets doing it.

The following is a simple way to reproduce it:
 # mkfs.btrfs /dev/sdc2
 # mount /dev/sdc2 /test4
 # touch /test4/a
 # dd if=/dev/zero of=/test4/a seek=8 count=1 bs=4K oflag=direct conv=nocreat,notrunc
 # umount /test4
 # btrfsck /dev/sdc2
 root 5 inode 257 errors 100

Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Tested-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:24 -04:00
Miao Xie 5b397377e9 Btrfs: fix unclosed transaction handle in btrfs_cont_expand
The function - btrfs_cont_expand() forgot to close the transaction handle before
it jump out the while loop. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:24 -04:00
Liu Bo 98c9942aca Btrfs: fix misuse of trans block rsv
At the beginning of create_pending_snapshot, trans->block_rsv is set
to pending->block_rsv and is used for snapshot things, however, when
it is done, we do not recover it as will.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:24 -04:00
Liu Bo 65450aa645 Btrfs: reset to appropriate block rsv after orphan operations
While truncating free space cache, we forget to change trans->block_rsv
back to the original one, but leave it with the orphan_block_rsv, and
then with option inode_cache enable, it leads to countless warnings of
btrfs_alloc_free_block and btrfs_orphan_commit_root:

WARNING: at fs/btrfs/extent-tree.c:5711 btrfs_alloc_free_block+0x180/0x350 [btrfs]()
...
WARNING: at fs/btrfs/inode.c:2193 btrfs_orphan_commit_root+0xb0/0xc0 [btrfs]()

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:24 -04:00
Josef Bacik ddf23b3fc6 Btrfs: skip locking if searching the commit root in csum lookup
It's not enough to just search the commit root, since we could be cow'ing the
very block we need to search through, which would mean that its locked and we'll
still deadlock.  So use path->skip_locking as well.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:24 -04:00
Sergei Trofimovich e0b6d65be5 btrfs: fix warning in iput for bad-inode
iput() shouldn't be called for inodes in I_NEW state.
We need to mark inode as constructed first.

WARNING: at fs/inode.c:1309 iput+0x20b/0x210()
Call Trace:
 [<ffffffff8103e7ba>] warn_slowpath_common+0x7a/0xb0
 [<ffffffff8103e805>] warn_slowpath_null+0x15/0x20
 [<ffffffff810eaf0b>] iput+0x20b/0x210
 [<ffffffff811b96fb>] btrfs_iget+0x1eb/0x4a0
 [<ffffffff811c3ad6>] btrfs_run_defrag_inodes+0x136/0x210
 [<ffffffff811ad55f>] cleaner_kthread+0x17f/0x1a0
 [<ffffffff81035b7d>] ? sub_preempt_count+0x9d/0xd0
 [<ffffffff811ad3e0>] ? transaction_kthread+0x280/0x280
 [<ffffffff8105af86>] kthread+0x96/0xa0
 [<ffffffff814336d4>] kernel_thread_helper+0x4/0x10
 [<ffffffff8105aef0>] ? kthread_worker_fn+0x190/0x190
 [<ffffffff814336d0>] ? gs_change+0xb/0xb

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
CC: Konstantin Khlebnikov <khlebnikov@openvz.org>
Tested-by: David Sterba <dsterba@suse.cz>
CC: Josef Bacik <josef@redhat.com>
CC: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:24 -04:00
Liu Bo 14c7cca780 Btrfs: fix an oops when deleting snapshots
We can reproduce this oops via the following steps:

$ mkfs.btrfs /dev/sdb7
$ mount /dev/sdb7 /mnt/btrfs
$ for ((i=0; i<3; i++)); do btrfs sub snap /mnt/btrfs /mnt/btrfs/s_$i; done
$ rm -fr /mnt/btrfs/*
$ rm -fr /mnt/btrfs/*

then we'll get
------------[ cut here ]------------
kernel BUG at fs/btrfs/inode.c:2264!
[...]
Call Trace:
 [<ffffffffa05578c7>] btrfs_rmdir+0xf7/0x1b0 [btrfs]
 [<ffffffff81150b95>] vfs_rmdir+0xa5/0xf0
 [<ffffffff81153cc3>] do_rmdir+0x123/0x140
 [<ffffffff81145ac7>] ? fput+0x197/0x260
 [<ffffffff810aecff>] ? audit_syscall_entry+0x1bf/0x1f0
 [<ffffffff81153d0d>] sys_unlinkat+0x2d/0x40
 [<ffffffff8147896b>] system_call_fastpath+0x16/0x1b
RIP  [<ffffffffa054f7b9>] btrfs_orphan_add+0x179/0x1a0 [btrfs]

When it comes to btrfs_lookup_dentry, we may set a snapshot's inode->i_ino
to BTRFS_EMPTY_SUBVOL_DIR_OBJECTID instead of BTRFS_FIRST_FREE_OBJECTID,
while the snapshot's location.objectid remains unchanged.

However, btrfs_ino() does not take this into account, and returns a wrong ino,
and causes the oops.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-09-11 10:52:24 -04:00