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2009-12-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds12-40/+72
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: devtmpfs: unlock mutex in case of string allocation error Driver core: export platform_device_register_data as a GPL symbol driver core: Prevent reference to freed memory on error path Driver-core: Fix bogus 0 error return in device_add() Driver core: driver_attribute parameters can often be const* Driver core: bin_attribute parameters can often be const* Driver core: device_attribute parameters can often be const* Doc/stable rules: add new cherry-pick logic vfs: get_sb_single() - do not pass options twice devtmpfs: Convert dirlock to a mutex
2009-12-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds52-4672/+3696
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging/vt66*: kconfig, depends on WLAN Staging: batman-adv: introduce missing kfree Staging: batman-adv: Add Kconfig dependancies on PROC_FS and PACKET. Staging: panel: Adjust range for PANEL_KEYPAD in Kconfig Staging: panel: Fix compilation error with custom lcd charset Staging: ramzswap: remove ARM specific d-cache hack Staging: rtl8192x: fix printk formats Staging: wlan-ng: fix Correct size given to memset staging: rtl8192su: add USB VID/PID for HWNUm-300 staging: fix rtl8192su compilation errors with mac80211 staging: fix rtl8192e compilation errors with mac80211 Staging: fix rtl8187se compilation errors with mac80211 Staging: rtl8192su: fix test for negative error in rtl8192_rx_isr() Staging: comedi: jr3_pci: Don't ioremap too much space. Check result. Staging: comedi: removed "depricated" from COMEDI_CB_BLOCK Staging: comedi: usbdux.c: fix locking up of the driver when the comedi ringbuffer runs empty Staging: dst: remove from the tree Staging: sm7xx: add a new framebuffer driver Staging: batman: fix debug Kconfig option
2009-12-24Merge branch 'upstream-linus' of ↵Linus Torvalds4-39/+131
git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: ocfs2: Set i_nlink properly during reflink. ocfs2: Add reflinked file's inode to inode hash eariler. ocfs2: refcounttree.c cleanup. ocfs2: Find proper end cpos for a leaf refcount block.
2009-12-23Staging/vt66*: kconfig, depends on WLANRandy Dunlap2-2/+2
The vt665[56] drivers can be built when CONFIG_NET=n & CONFIG_NETDEVICES=n or just when CONFIG_WLAN=n. This leads to build failures. Prevent this by making them depend on WLAN. [This patch was lost in a dualing trees merge; still needs to be re-applied.] Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: batman-adv: introduce missing kfreeJulia Lawall1-1/+3
Error handling code following a kzalloc should free the allocated data. Similarly for usb-alloc urb. The semantic match that finds the first problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: batman-adv: Add Kconfig dependancies on PROC_FS and PACKET.Andrew Lunn1-0/+1
Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: panel: Adjust range for PANEL_KEYPAD in KconfigPeter Huewe1-1/+1
In panel.c there are only the values 0-3 defined. So 4 is invalid: Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Cc: Willy Tarreau <w@1wt.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: panel: Fix compilation error with custom lcd charsetPeter Huewe1-1/+1
When compiling panel.c with a DEFAULT_LCD_CHARSET it fails to compile with the following error message: drivers/staging/panel/panel.c: In function >>lcd_init<<: drivers/staging/panel/panel.c:1396: error: expected expression before >>;<< token drivers/staging/panel/panel.c:1475: error: expected expression before >>;<< token make[3]: *** [drivers/staging/panel/panel.o] error 1 make[2]: *** [drivers/staging/panel] error 2 make[1]: *** [drivers/staging] error 2 The config used was: CONFIG_PANEL=m CONFIG_PANEL_PARPORT=0 CONFIG_PANEL_PROFILE=0 CONFIG_PANEL_KEYPAD=0 CONFIG_PANEL_LCD=1 CONFIG_PANEL_LCD_HEIGHT=2 CONFIG_PANEL_LCD_WIDTH=20 CONFIG_PANEL_LCD_BWIDTH=40 CONFIG_PANEL_LCD_HWIDTH=64 CONFIG_PANEL_LCD_CHARSET=0 CONFIG_PANEL_LCD_PROTO=0 CONFIG_PANEL_LCD_PIN_E=14 CONFIG_PANEL_LCD_PIN_RS=17 CONFIG_PANEL_LCD_PIN_RW=16 CONFIG_PANEL_LCD_PIN_BL=0 This patch fixes both errors, as it fixes the define Patch against current linux-next tree at Tue Dec 15 06:07:01 2009 +0100 Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Acked-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: ramzswap: remove ARM specific d-cache hackNitin Gupta2-26/+3
Remove d-cache hack in ramzswap driver that was needed to workaround a bug in ARM version of update_mmu_cache() which caused stale data in d-cache to be transferred to userspace. This bug was fixed by git commit: 787b2faadc4356b6c2c71feb42fb944fece9a12f This also brings down one entry in TODO file. Signed-off-by: Nitin Gupta <ngupta@vflare.org> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: rtl8192x: fix printk formatsRandy Dunlap4-8/+8
Fix printk format warnings in rtl8192[eu]: drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c:979: warning: format '%d' expects type 'int', but argument 2 has type 'size_t' drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c:385: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c:484: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c:614: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c:848: warning: format '%d' expects type 'int', but argument 2 has type 'size_t' drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c:343: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c:442: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c:572: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: wlan-ng: fix Correct size given to memsetJulia Lawall1-1/+1
Memset should be given the size of the structure, not the size of the pointer. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; T *x; expression E; @@ memset(x, E, sizeof( + * x)) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23staging: rtl8192su: add USB VID/PID for HWNUm-300Stephane Glondu1-0/+2
The Hercules Wireless N USB mini (HWNUm-300) uses the RTL8191S chipset and seems to work with this driver. Signed-off-by: Stephane Glondu <steph@glondu.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23staging: fix rtl8192su compilation errors with mac80211George Kadianakis5-19/+19
This patch series fixes compilation problems that were caused by function naming conflicts between the rtl8192su driver and the mac80211 stack. Signed-off-by: George Kadianakis <desnacked at gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23staging: fix rtl8192e compilation errors with mac80211George Kadianakis7-38/+38
This patch series fixes compilation problems that were caused by function naming conflicts between the rtl8192e driver and the mac80211 stack. Signed-off-by: George Kadianakis <desnacked at gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: fix rtl8187se compilation errors with mac80211George Kadianakis6-20/+20
This patch fixes compilation problems that were caused by function naming conflicts between the rtl8187se driver and the mac80211 stack. Signed-off-by: George Kadianakis <desnacked at gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: rtl8192su: fix test for negative error in rtl8192_rx_isr()Roel Kluin1-1/+1
The error tested for is negative Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: comedi: jr3_pci: Don't ioremap too much space. Check result.Ian Abbott1-2/+5
For the JR3/PCI cards, the size of the PCIBAR0 region depends on the number of channels. Don't try and ioremap space for 4 channels if the card has fewer channels. Also check for ioremap failure. Thanks to Anders Blomdell for input and Sami Hussein for testing. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: comedi: removed "depricated" from COMEDI_CB_BLOCKBernd Porr1-1/+1
The flag COMEDI_CB_BLOCK was marked as "depricated in the header file". However, this flag is important to wake up the data-reader (and writer) after new data has arrived from(for) the DAQ card. Signed-off-by: Bernd Porr <berndporr@f2s.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: comedi: usbdux.c: fix locking up of the driver when the comedi ↵Bernd Porr1-1/+4
ringbuffer runs empty Jan-Matthias Braun spotted a bug which locks up the driver when the comedi ring buffer runs empty and provided a patch. The driver would still send the data to comedi but the reader won't wake up any more. What's required is setting the flag COMEDI_CB_BLOCK after new data has arrived which wakes up the reader and therefore the read() command. Signed-off-by: Bernd Porr <berndporr@f2s.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: dst: remove from the treeGreg Kroah-Hartman11-4550/+0
DST is dead, no one is using it and upstream has abandoned it, so remove it from the tree because it is not going anywhere. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Staging: sm7xx: add a new framebuffer driverWu Zhangjin9-0/+3586
Yeeloong netbook has a sm712 video card, need this driver, but it is not ready to upstream yet, so, go to drivers/staing at first. This source code is originally from Silicon Motion Technology Corp, and maintained at http://dev.lemote.com/code/linux_loongson for YeeLoong netbook. I have done a lot of cleanups for it and merged it into my git repository at http://dev.lemote.com/code/rt4ls. Thanks to Simon for testing it on a little-endian x86 platform. Thanks to Olivier Croset <olivier.croset@actis-computer.com> for reporting the problem about __BIG_ENDIAN compiling problem and send a relative patch. The suspend/resume and blank support are contributed by Jason from Silicon Motion Technology. Tested-by: Simon Braunschmidt <sbraun@emlix.com> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23devtmpfs: unlock mutex in case of string allocation errorKay Sievers1-2/+5
Reported-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Driver core: export platform_device_register_data as a GPL symbolMichael Hennerich1-0/+1
This allows MFD's to register/bind drivers for their sub devices while still being compiled as a module. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23driver core: Prevent reference to freed memory on error pathPhil Carmody1-1/+1
priv is drv->p. So only free drv->p after we've finished using priv. Found using a static code analysis tool Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Driver-core: Fix bogus 0 error return in device_add()Thomas Gleixner1-1/+3
If device_add() is called with a device which does not have dev->p set up, then device_private_init() is called. If that succeeds, then the error variable is set to 0. Now if the dev_name(dev) check further down fails, then device_add() correctly terminates, but returns 0. That of course lets the driver progress. If later another driver uses this half set up device as parent then device_add() of the child device explodes and renders sysfs completely unusable. Set the error to -EINVAL if dev_name() check fails. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: "Hans J. Koch" <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Driver core: driver_attribute parameters can often be const*Phil Carmody4-8/+8
Many struct driver_attribute descriptors are purely read-only structures, and there's no need to change them. Therefore make the promise not to, which will let those descriptors be put in a ro section. Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Driver core: bin_attribute parameters can often be const*Phil Carmody4-11/+16
Many struct bin_attribute descriptors are purely read-only structures, and there's no need to change them. Therefore make the promise not to, which will let those descriptors be put in a ro section. Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Driver core: device_attribute parameters can often be const*Phil Carmody3-8/+10
Most device_attributes are const, and are begging to be put in a ro section. However, the create and remove file interfaces were failing to propagate the const promise which the only functions they call offer. Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Doc/stable rules: add new cherry-pick logicSebastian Andrzej Siewior1-2/+22
- it is possible to submit patches for the stable queue without sending them directly stable@kernel.org. If the tag (Cc: stable@kernel.org) is available in the sign-off area than hpa's script will filter them into the stable mailbox once it hits Linus' tree. - Patches which require others to be applied first can be also specified. This was discussued in http://lkml.org/lkml/2009/11/9/474 Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Brandon Philips <brandon@ifup.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23vfs: get_sb_single() - do not pass options twiceKay Sievers1-1/+2
Filesystem code usually destroys the option buffer while parsing it. This leads to errors when the same buffer is passed twice. In case we fill a new superblock do not call remount. This is needed to quite a warning that the debugfs code causes every boot. Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23devtmpfs: Convert dirlock to a mutexThomas Gleixner1-7/+5
devtmpfs has a rw_lock dirlock which serializes delete_path and create_path. This code was obviously never tested with the usual set of debugging facilities enabled. In the dirlock held sections the code calls: - vfs functions which take mutexes - kmalloc(, GFP_KERNEL) In both code pathes the might sleep warning triggers and spams dmesg. Convert the rw_lock to a mutex. There is no reason why this needs to be a rwlock. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23Merge branch 'for-linus' of ↵Linus Torvalds10-34/+48
git://git.kernel.org/pub/scm/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 STAC9205 PCI_QUIRK for Dell Vostro 1700 ASoC: Do not write to invalid registers on the wm9712. ALSA: hda - Set mixer name after codec patch ASoC: add missing parameter to mx27vis_hifi_hw_free() ASoC: sh: FSI:: don't check platform_get_irq's return value against zero ALSA: sound/core/pcm_timer.c: use lib/gcd.c ALSA: hda - Add MSI blacklist ALSA: hda - Add support for the new 27 inch IMacs ALSA: hda - Fix NULL dereference with enable_beep=0 option
2009-12-23Merge branch 'master' of /home/gregkh/linux/git/torvalds-2.6Greg Kroah-Hartman3989-89087/+275983
2009-12-23Merge branch 'fix/hda' into for-linusTakashi Iwai5-15/+41
2009-12-23Merge branch 'fix/asoc' into for-linusTakashi Iwai3-3/+5
2009-12-23Merge branch 'fix/misc' into for-linusTakashi Iwai2-16/+2
2009-12-23ALSA: hda - Add STAC9205 PCI_QUIRK for Dell Vostro 1700Anisse Astier1-0/+3
Signed-off-by: Anisse Astier <anisse@astier.eu> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-23kfifo: fix Error/broken kernel-doc notationRandy Dunlap1-16/+15
Fix kernel-doc errors and warnings in new header file kfifo.h. Don't use kernel-doc "/**" for internal functions whose comments are not in kernel-doc format. kernel-doc section header names (like "Note:") must be unique per function. Looks like I need to document that. Error(include/linux/kfifo.h:76): duplicate section name 'Note' Warning(include/linux/kfifo.h:88): Excess function parameter 'size' description in 'INIT_KFIFO' Error(include/linux/kfifo.h:101): duplicate section name 'Note' Warning(include/linux/kfifo.h:257): No description found for parameter 'fifo' (many of this last type, from internal functions) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Stefani Seibold <stefani@seibold.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-23Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds1-5/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Revert 738d2be, simplify set_task_cpu()
2009-12-23Merge branch 'for_linus' of ↵Linus Torvalds17-217/+253
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: quota: Improve checking of quota file header jbd: jbd-debug and jbd2-debug should be writable ext4: fix sleep inside spinlock issue with quota and dealloc (#14739) ext4: Fix potential quota deadlock quota: Fix 64-bit limits setting on 32-bit archs ext3: Replace lock/unlock_super() with an explicit lock for resizing ext3: Replace lock/unlock_super() with an explicit lock for the orphan list ext3: ext3_mark_recovery_complete() doesn't need to use lock_super ext3: Remove outdated comment about lock_super() quota: Move duplicated code to separate functions ext4: Convert to generic reserved quota's space management. quota: decouple fs reserved space from quota reservation Add unlocked version of inode_add_bytes() function ext3: quota macros cleanup [V2]
2009-12-23Merge branch 'drm-linus' of ↵Linus Torvalds83-1066/+2502
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (35 commits) drm/radeon/kms: add definitions for v4 power tables drm/radeon/kms: never combine LVDS with another encoder drm/radeon/kms: Check module arguments to be valid V2 drm/radeon/kms: Avoid crash when trying to cleanup uninitialized structure drm/radeon/kms: add cvt mode if we only have lvds w/h and no edid (v4) drm/radeon/kms: add 3DC compression support drm/radeon/kms: allow rendering while no colorbuffer is set on r300 drm/radeon/kms: enable memory clock reading on legacy (V2) drm/radeon/kms: prevent parallel AtomBIOS calls drm/radeon/kms: set proper default tv standard drm/radeon/kms: fix legacy rmx drm/radeon/kms/atom: fill in proper defines for digital setup drm/kms: silencing a false positive warning. drm/mm: fix logic for selection of best fit block drm/vmwgfx: Use TTM handles instead of SIDs as user-space surface handles. drm/vmwgfx: Return -ERESTARTSYS when interrupted by a signal. drm/vmwgfx: Fix unlocked ioctl and add proper access control drm/radeon: fix build on 64-bit with some compilers. drivers/gpu: Use kzalloc for allocating only one thing DRM: Rename clamp variable ...
2009-12-23Fix usb_serial_probe() problem introduced by the recent kfifo changesStefani Seibold3-10/+10
The USB serial code was a new user of the kfifo API, and it was missed when porting things to the new kfifo API. Please make the write_fifo in place. Here is my patch to fix the regression and full ported version. Signed-off-by: Stefani Seibold <stefani@seibold.net> Reported-and-tested-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Greg KH <greg@kroah.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-23ASoC: Do not write to invalid registers on the wm9712.Eric Millbrandt1-1/+2
This patch fixes a bug where "virtual" registers were being written to the ac97 bus. This was causing unrelated registers to become corrupted (headphone 0x04, touchscreen 0x78, etc). This patch duplicates protection that was included in the wm9713 driver. Signed-off-by: Eric Millbrandt <emillbrandt@dekaresearch.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org
2009-12-23quota: Improve checking of quota file headerJan Kara1-1/+4
When we are asked for vfsv0 quota format and the file is in vfsv1 format (or vice versa), refuse to use the quota file. Also return with error when we don't like the header of quota file. Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23jbd: jbd-debug and jbd2-debug should be writableYin Kangkai2-2/+3
jbd-debug and jbd2-debug is currently read-only (S_IRUGO), which is not correct. Make it writable so that we can start debuging. Signed-off-by: Yin Kangkai <kangkai.yin@intel.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23ext4: fix sleep inside spinlock issue with quota and dealloc (#14739)Dmitry Monakhov1-6/+5
Unlock i_block_reservation_lock before vfs_dq_reserve_block(). This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=14739 CC: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23ext4: Fix potential quota deadlockDmitry Monakhov2-8/+7
We have to delay vfs_dq_claim_space() until allocation context destruction. Currently we have following call-trace: ext4_mb_new_blocks() /* task is already holding ac->alloc_semp */ ->ext4_mb_mark_diskspace_used ->vfs_dq_claim_space() /* acquire dqptr_sem here. Possible deadlock */ ->ext4_mb_release_context() /* drop ac->alloc_semp here */ Let's move quota claiming to ext4_da_update_reserve_space() ======================================================= [ INFO: possible circular locking dependency detected ] 2.6.32-rc7 #18 ------------------------------------------------------- write-truncate-/3465 is trying to acquire lock: (&s->s_dquot.dqptr_sem){++++..}, at: [<c025e73b>] dquot_claim_space+0x3b/0x1b0 but task is already holding lock: (&meta_group_info[i]->alloc_sem){++++..}, at: [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&meta_group_info[i]->alloc_sem){++++..}: [<c017d04b>] __lock_acquire+0xd7b/0x1260 [<c017d5ea>] lock_acquire+0xba/0xd0 [<c0527191>] down_read+0x51/0x90 [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370 [<c02d0c1c>] ext4_mb_free_blocks+0x46c/0x870 [<c029c9d3>] ext4_free_blocks+0x73/0x130 [<c02c8cfc>] ext4_ext_truncate+0x76c/0x8d0 [<c02a8087>] ext4_truncate+0x187/0x5e0 [<c01e0f7b>] vmtruncate+0x6b/0x70 [<c022ec02>] inode_setattr+0x62/0x190 [<c02a2d7a>] ext4_setattr+0x25a/0x370 [<c022ee81>] notify_change+0x151/0x340 [<c021349d>] do_truncate+0x6d/0xa0 [<c0221034>] may_open+0x1d4/0x200 [<c022412b>] do_filp_open+0x1eb/0x910 [<c021244d>] do_sys_open+0x6d/0x140 [<c021258e>] sys_open+0x2e/0x40 [<c0103100>] sysenter_do_call+0x12/0x32 -> #2 (&ei->i_data_sem){++++..}: [<c017d04b>] __lock_acquire+0xd7b/0x1260 [<c017d5ea>] lock_acquire+0xba/0xd0 [<c0527191>] down_read+0x51/0x90 [<c02a5787>] ext4_get_blocks+0x47/0x450 [<c02a74c1>] ext4_getblk+0x61/0x1d0 [<c02a7a7f>] ext4_bread+0x1f/0xa0 [<c02bcddc>] ext4_quota_write+0x12c/0x310 [<c0262d23>] qtree_write_dquot+0x93/0x120 [<c0261708>] v2_write_dquot+0x28/0x30 [<c025d3fb>] dquot_commit+0xab/0xf0 [<c02be977>] ext4_write_dquot+0x77/0x90 [<c02be9bf>] ext4_mark_dquot_dirty+0x2f/0x50 [<c025e321>] dquot_alloc_inode+0x101/0x180 [<c029fec2>] ext4_new_inode+0x602/0xf00 [<c02ad789>] ext4_create+0x89/0x150 [<c0221ff2>] vfs_create+0xa2/0xc0 [<c02246e7>] do_filp_open+0x7a7/0x910 [<c021244d>] do_sys_open+0x6d/0x140 [<c021258e>] sys_open+0x2e/0x40 [<c0103100>] sysenter_do_call+0x12/0x32 -> #1 (&sb->s_type->i_mutex_key#7/4){+.+...}: [<c017d04b>] __lock_acquire+0xd7b/0x1260 [<c017d5ea>] lock_acquire+0xba/0xd0 [<c0526505>] mutex_lock_nested+0x65/0x2d0 [<c0260c9d>] vfs_load_quota_inode+0x4bd/0x5a0 [<c02610af>] vfs_quota_on_path+0x5f/0x70 [<c02bc812>] ext4_quota_on+0x112/0x190 [<c026345a>] sys_quotactl+0x44a/0x8a0 [<c0103100>] sysenter_do_call+0x12/0x32 -> #0 (&s->s_dquot.dqptr_sem){++++..}: [<c017d361>] __lock_acquire+0x1091/0x1260 [<c017d5ea>] lock_acquire+0xba/0xd0 [<c0527191>] down_read+0x51/0x90 [<c025e73b>] dquot_claim_space+0x3b/0x1b0 [<c02cb95f>] ext4_mb_mark_diskspace_used+0x36f/0x380 [<c02d210a>] ext4_mb_new_blocks+0x34a/0x530 [<c02c83fb>] ext4_ext_get_blocks+0x122b/0x13c0 [<c02a5966>] ext4_get_blocks+0x226/0x450 [<c02a5ff3>] mpage_da_map_blocks+0xc3/0xaa0 [<c02a6ed6>] ext4_da_writepages+0x506/0x790 [<c01de272>] do_writepages+0x22/0x50 [<c01d766d>] __filemap_fdatawrite_range+0x6d/0x80 [<c01d7b9b>] filemap_flush+0x2b/0x30 [<c02a40ac>] ext4_alloc_da_blocks+0x5c/0x60 [<c029e595>] ext4_release_file+0x75/0xb0 [<c0216b59>] __fput+0xf9/0x210 [<c0216c97>] fput+0x27/0x30 [<c02122dc>] filp_close+0x4c/0x80 [<c014510e>] put_files_struct+0x6e/0xd0 [<c01451b7>] exit_files+0x47/0x60 [<c0146a24>] do_exit+0x144/0x710 [<c0147028>] do_group_exit+0x38/0xa0 [<c0159abc>] get_signal_to_deliver+0x2ac/0x410 [<c0102849>] do_notify_resume+0xb9/0x890 [<c01032d2>] work_notifysig+0x13/0x21 other info that might help us debug this: 3 locks held by write-truncate-/3465: #0: (jbd2_handle){+.+...}, at: [<c02e1f8f>] start_this_handle+0x38f/0x5c0 #1: (&ei->i_data_sem){++++..}, at: [<c02a57f6>] ext4_get_blocks+0xb6/0x450 #2: (&meta_group_info[i]->alloc_sem){++++..}, at: [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370 stack backtrace: Pid: 3465, comm: write-truncate- Not tainted 2.6.32-rc7 #18 Call Trace: [<c0524cb3>] ? printk+0x1d/0x22 [<c017ac9a>] print_circular_bug+0xca/0xd0 [<c017d361>] __lock_acquire+0x1091/0x1260 [<c016bca2>] ? sched_clock_local+0xd2/0x170 [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0 [<c017d5ea>] lock_acquire+0xba/0xd0 [<c025e73b>] ? dquot_claim_space+0x3b/0x1b0 [<c0527191>] down_read+0x51/0x90 [<c025e73b>] ? dquot_claim_space+0x3b/0x1b0 [<c025e73b>] dquot_claim_space+0x3b/0x1b0 [<c02cb95f>] ext4_mb_mark_diskspace_used+0x36f/0x380 [<c02d210a>] ext4_mb_new_blocks+0x34a/0x530 [<c02c601d>] ? ext4_ext_find_extent+0x25d/0x280 [<c02c83fb>] ext4_ext_get_blocks+0x122b/0x13c0 [<c016bca2>] ? sched_clock_local+0xd2/0x170 [<c016be60>] ? sched_clock_cpu+0x120/0x160 [<c016beef>] ? cpu_clock+0x4f/0x60 [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0 [<c052712c>] ? down_write+0x8c/0xa0 [<c02a5966>] ext4_get_blocks+0x226/0x450 [<c016be60>] ? sched_clock_cpu+0x120/0x160 [<c016beef>] ? cpu_clock+0x4f/0x60 [<c017908b>] ? trace_hardirqs_off+0xb/0x10 [<c02a5ff3>] mpage_da_map_blocks+0xc3/0xaa0 [<c01d69cc>] ? find_get_pages_tag+0x16c/0x180 [<c01d6860>] ? find_get_pages_tag+0x0/0x180 [<c02a73bd>] ? __mpage_da_writepage+0x16d/0x1a0 [<c01dfc4e>] ? pagevec_lookup_tag+0x2e/0x40 [<c01ddf1b>] ? write_cache_pages+0xdb/0x3d0 [<c02a7250>] ? __mpage_da_writepage+0x0/0x1a0 [<c02a6ed6>] ext4_da_writepages+0x506/0x790 [<c016beef>] ? cpu_clock+0x4f/0x60 [<c016bca2>] ? sched_clock_local+0xd2/0x170 [<c016be60>] ? sched_clock_cpu+0x120/0x160 [<c016be60>] ? sched_clock_cpu+0x120/0x160 [<c02a69d0>] ? ext4_da_writepages+0x0/0x790 [<c01de272>] do_writepages+0x22/0x50 [<c01d766d>] __filemap_fdatawrite_range+0x6d/0x80 [<c01d7b9b>] filemap_flush+0x2b/0x30 [<c02a40ac>] ext4_alloc_da_blocks+0x5c/0x60 [<c029e595>] ext4_release_file+0x75/0xb0 [<c0216b59>] __fput+0xf9/0x210 [<c0216c97>] fput+0x27/0x30 [<c02122dc>] filp_close+0x4c/0x80 [<c014510e>] put_files_struct+0x6e/0xd0 [<c01451b7>] exit_files+0x47/0x60 [<c0146a24>] do_exit+0x144/0x710 [<c017b163>] ? lock_release_holdtime+0x33/0x210 [<c0528137>] ? _spin_unlock_irq+0x27/0x30 [<c0147028>] do_group_exit+0x38/0xa0 [<c017babb>] ? trace_hardirqs_on+0xb/0x10 [<c0159abc>] get_signal_to_deliver+0x2ac/0x410 [<c0102849>] do_notify_resume+0xb9/0x890 [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0 [<c017b163>] ? lock_release_holdtime+0x33/0x210 [<c0165b50>] ? autoremove_wake_function+0x0/0x50 [<c017ba54>] ? trace_hardirqs_on_caller+0x134/0x190 [<c017babb>] ? trace_hardirqs_on+0xb/0x10 [<c0300ba4>] ? security_file_permission+0x14/0x20 [<c0215761>] ? vfs_write+0x131/0x190 [<c0214f50>] ? do_sync_write+0x0/0x120 [<c0103115>] ? sysenter_do_call+0x27/0x32 [<c01032d2>] work_notifysig+0x13/0x21 CC: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23quota: Fix 64-bit limits setting on 32-bit archsJan Kara1-2/+2
Fix warnings: fs/quota/quota_v2.c: In function ‘v2_read_file_info’: fs/quota/quota_v2.c:123: warning: integer constant is too large for ‘long’ type fs/quota/quota_v2.c:124: warning: integer constant is too large for ‘long’ type Reported-by: Jerry Leo <jerryleo860202@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23ext3: Replace lock/unlock_super() with an explicit lock for resizingEric Sandeen3-17/+20
Use a separate lock to protect s_groups_count and the other block group descriptors which get changed via an on-line resize operation, so we can stop overloading the use of lock_super(). Port of ext4 commit 32ed5058ce90024efcd811254b4b1de0468099df by Theodore Ts'o <tytso@mit.edu>. CC: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23ext3: Replace lock/unlock_super() with an explicit lock for the orphan listEric Sandeen3-9/+13
Use a separate lock to protect the orphan list, so we can stop overloading the use of lock_super(). Port of ext4 commit 3b9d4ed26680771295d904a6b83e88e620780893 by Theodore Ts'o <tytso@mit.edu>. CC: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
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