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2010-07-19pm_qos: Get rid of the allocation in pm_qos_add_request()James Bottomley8-61/+74
All current users of pm_qos_add_request() have the ability to supply the memory required by the pm_qos routines, so make them do this and eliminate the kmalloc() with pm_qos_add_request(). This has the double benefit of making the call never fail and allowing it to be called from atomic context. Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: mark gross <markgross@thegnar.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-07-19pm_qos: Reimplement using plistsJames Bottomley1-86/+86
A lot of the pm_qos extremal value handling is really duplicating what a priority ordered list does, just in a less efficient fashion. Simply redoing the implementation in terms of a plist gets rid of a lot of this junk (although there are several other strange things that could do with tidying up, like pm_qos_request_list has to carry the pm_qos_class with every node, simply because it doesn't get passed in to pm_qos_update_request even though every caller knows full well what parameter it's updating). I think this redo is a win independent of android, so we should do something like this now. Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: mark gross <markgross@thegnar.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-07-19plist: Add plist_lastJames Bottomley1-0/+29
plist is currently used by the scheduler, which only needs to know the highest item in the list. This adds plist_last which allows you to find the lowest. This is necessary for using plists to implement a fast search of dynamic ranges in pm_qos which can have both highest and lowest criteria. Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-07-19PM: Make it possible to avoid races between wakeup and system sleepRafael J. Wysocki14-10/+375
One of the arguments during the suspend blockers discussion was that the mainline kernel didn't contain any mechanisms making it possible to avoid races between wakeup and system suspend. Generally, there are two problems in that area. First, if a wakeup event occurs exactly when /sys/power/state is being written to, it may be delivered to user space right before the freezer kicks in, so the user space consumer of the event may not be able to process it before the system is suspended. Second, if a wakeup event occurs after user space has been frozen, it is not generally guaranteed that the ongoing transition of the system into a sleep state will be aborted. To address these issues introduce a new global sysfs attribute, /sys/power/wakeup_count, associated with a running counter of wakeup events and three helper functions, pm_stay_awake(), pm_relax(), and pm_wakeup_event(), that may be used by kernel subsystems to control the behavior of this attribute and to request the PM core to abort system transitions into a sleep state already in progress. The /sys/power/wakeup_count file may be read from or written to by user space. Reads will always succeed (unless interrupted by a signal) and return the current value of the wakeup events counter. Writes, however, will only succeed if the written number is equal to the current value of the wakeup events counter. If a write is successful, it will cause the kernel to save the current value of the wakeup events counter and to abort the subsequent system transition into a sleep state if any wakeup events are reported after the write has returned. [The assumption is that before writing to /sys/power/state user space will first read from /sys/power/wakeup_count. Next, user space consumers of wakeup events will have a chance to acknowledge or veto the upcoming system transition to a sleep state. Finally, if the transition is allowed to proceed, /sys/power/wakeup_count will be written to and if that succeeds, /sys/power/state will be written to as well. Still, if any wakeup events are reported to the PM core by kernel subsystems after that point, the transition will be aborted.] Additionally, put a wakeup events counter into struct dev_pm_info and make these per-device wakeup event counters available via sysfs, so that it's possible to check the activity of various wakeup event sources within the kernel. To illustrate how subsystems can use pm_wakeup_event(), make the low-level PCI runtime PM wakeup-handling code use it. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: markgross <markgross@thegnar.org> Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
2010-07-19PNPACPI: Add support for remote wakeupAlan Stern3-0/+27
This patch (as1354) adds remote-wakeup support to the pnpacpi driver. The new can_wakeup method also allows other PNP protocol drivers (pnpbios or iaspnp) to add wakeup support, but I don't know enough about how they work to actually do it. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-07-19PM: describe kernel policy regarding wakeup defaults (v. 2)Alan Stern1-3/+7
This patch (as1381b) updates a comment describing the kernel's policy toward enabling wakeup by default. It also makes device_set_wakeup_capable() actually do something when CONFIG_PM isn't enabled. It's not clear this is necessary; however if it isn't then device_init_wakeup() and device_can_wakeup() should also be do-nothing routines. Furthermore, I don't expect this change to have any noticeable effect -- but if it does then clearly the old behavior was wrong. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-07-19PM / Hibernate: Fix typos in comments in kernel/power/swap.cCesar Eduardo Barros1-2/+2
There are a few typos in kernel/power/swap.c. Fix them. Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-07-18Merge branch 'x86/kprobes' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland * 'x86/kprobes' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland: x86: kprobes: fix swapped segment registers in kretprobe
2010-07-18x86: kprobes: fix swapped segment registers in kretprobeRoland McGrath1-1/+1
In commit f007ea26, the order of the %es and %ds segment registers got accidentally swapped, so synthesized 'struct pt_regs' frames have the two values inverted. It's almost sure that these values never matter, and that they also never differ. But wrong is wrong. Signed-off-by: Roland McGrath <roland@redhat.com>
2010-07-18Merge branch 'for-linus' of ↵Linus Torvalds3-0/+34
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: fall back to original BIOS BAR addresses
2010-07-18Merge branch 'upstream-linus' of ↵Linus Torvalds16-224/+504
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: Silence gcc warning in ocfs2_write_zero_page(). jbd2/ocfs2: Fix block checksumming when a buffer is used in several transactions ocfs2/dlm: Remove BUG_ON from migration in the rare case of a down node ocfs2: Don't duplicate pages past i_size during CoW. ocfs2: tighten up strlen() checking ocfs2: Make xattr reflink work with new local alloc reservation. ocfs2: make xattr extension work with new local alloc reservation. ocfs2: Remove the redundant cpu_to_le64. ocfs2/dlm: don't access beyond bitmap size ocfs2: No need to zero pages past i_size. ocfs2: Zero the tail cluster when extending past i_size. ocfs2: When zero extending, do it by page. ocfs2: Limit default local alloc size within bitmap range. ocfs2: Move orphan scan work to ocfs2_wq. fs/ocfs2/dlm: Add missing spin_unlock
2010-07-18drm/i915: add 'reclaimable' to i915 self-reclaimable page allocationsLinus Torvalds1-0/+1
The hibernate issues that got fixed in commit 985b823b9192 ("drm/i915: fix hibernation since i915 self-reclaim fixes") turn out to have been incomplete. Vefa Bicakci tested lots of hibernate cycles, and without the __GFP_RECLAIMABLE flag the system eventually fails to resume. With the flag added, Vefa can apparently hibernate forever (or until he gets bored running his automated scripts, whichever comes first). The reclaimable flag was there originally, and was one of the flags that were dropped (unintentionally) by commit 4bdadb978569 ("drm/i915: Selectively enable self-reclaim") that introduced all these problems, but I didn't want to just blindly add back all the flags in commit 985b823b9192, and it looked like __GFP_RECLAIM wasn't necessary. It clearly was. I still suspect that there is some subtle reason we're missing that causes the problems, but __GFP_RECLAIMABLE is certainly not wrong to use in this context, and is what the code historically used. And we have no idea what the causes the corruption without it. Reported-and-tested-by: M. Vefa Bicakci <bicave@superonline.com> Cc: Dave Airlie <airlied@gmail.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-16ocfs2: Silence gcc warning in ocfs2_write_zero_page().Joel Becker1-1/+1
ocfs2_write_zero_page() has a loop that won't ever be skipped, but gcc doesn't know that. Set ret=0 just to make gcc happy. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-07-16PCI: fall back to original BIOS BAR addressesBjorn Helgaas3-0/+34
If we fail to assign resources to a PCI BAR, this patch makes us try the original address from BIOS rather than leaving it disabled. Linux tries to make sure all PCI device BARs are inside the upstream PCI host bridge or P2P bridge apertures, reassigning BARs if necessary. Windows does similar reassignment. Before this patch, if we could not move a BAR into an aperture, we left the resource unassigned, i.e., at address zero. Windows leaves such BARs at the original BIOS addresses, and this patch makes Linux do the same. This is a bit ugly because we disable the resource long before we try to reassign it, so we have to keep track of the BIOS BAR address somewhere. For lack of a better place, I put it in the struct pci_dev. I think it would be cleaner to attempt the assignment immediately when the claim fails, so we could easily remember the original address. But we currently claim motherboard resources in the middle, after attempting to claim PCI resources and before assigning new PCI resources, and changing that is a fairly big job. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16263 Reported-by: Andrew <nitr0@seti.kr.ua> Tested-by: Andrew <nitr0@seti.kr.ua> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-07-16Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds5-29/+36
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: Add alignment to syscall metadata declarations perf: Sync callchains with period based hits perf: Resurrect flat callchains perf: Version String fix, for fallback if not from git perf: Version String fix, using kernel version
2010-07-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds5-10/+23
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: rename causes kernel Oops GFS2: BUG in gfs2_adjust_quota GFS2: Fix kernel NULL pointer dereference by dlm_astd GFS2: recovery stuck on transaction lock GFS2: O_TRUNC not working on stuffed files across cluster
2010-07-16Merge branch 'for-linus' of ↵Linus Torvalds3-7/+8
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: w90p910_ts - fix call to setup_timer() Input: synaptics - fix wrong dimensions check Input: i8042 - mark stubs in i8042.h "static inline"
2010-07-15Input: w90p910_ts - fix call to setup_timer()Wan ZongShun1-1/+1
No need to take address, w90p910_ts is already a pointer. Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-07-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds1-1/+1
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: skcipher - avoid NULL dereference
2010-07-15jbd2/ocfs2: Fix block checksumming when a buffer is used in several transactionsJan Kara4-28/+31
OCFS2 uses t_commit trigger to compute and store checksum of the just committed blocks. When a buffer has b_frozen_data, checksum is computed for it instead of b_data but this can result in an old checksum being written to the filesystem in the following scenario: 1) transaction1 is opened 2) handle1 is opened 3) journal_access(handle1, bh) - This sets jh->b_transaction to transaction1 4) modify(bh) 5) journal_dirty(handle1, bh) 6) handle1 is closed 7) start committing transaction1, opening transaction2 8) handle2 is opened 9) journal_access(handle2, bh) - This copies off b_frozen_data to make it safe for transaction1 to commit. jh->b_next_transaction is set to transaction2. 10) jbd2_journal_write_metadata() checksums b_frozen_data 11) the journal correctly writes b_frozen_data to the disk journal 12) handle2 is closed - There was no dirty call for the bh on handle2, so it is never queued for any more journal operation 13) Checkpointing finally happens, and it just spools the bh via normal buffer writeback. This will write b_data, which was never triggered on and thus contains a wrong (old) checksum. This patch fixes the problem by calling the trigger at the moment data is frozen for journal commit - i.e., either when b_frozen_data is created by do_get_write_access or just before we write a buffer to the log if b_frozen_data does not exist. We also rename the trigger to t_frozen as that better describes when it is called. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-07-15ocfs2/dlm: Remove BUG_ON from migration in the rare case of a down nodeWengang Wang1-8/+14
For migration, we are waiting for DLM_LOCK_RES_MIGRATING flag to be set before sending DLM_MIG_LOCKRES_MSG message to the target. We are using dlm_migration_can_proceed() for that purpose. However, if the node is down, dlm_migration_can_proceed() will also return "go ahead". In this rare case, the DLM_LOCK_RES_MIGRATING flag might not be set yet. Remove the BUG_ON() that trips over this condition. Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-07-15ocfs2: Don't duplicate pages past i_size during CoW.Tao Ma1-0/+6
During CoW, the pages after i_size don't contain valid data, so there's no need to read and duplicate them. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-07-15GFS2: rename causes kernel OopsBob Peterson1-1/+1
This patch fixes a kernel Oops in the GFS2 rename code. The problem was in the way the gfs2 directory code was trying to re-use sentinel directory entries. In the failing case, gfs2's rename function was renaming a file to another name that had the same non-trivial length. The file being renamed happened to be the first directory entry on the leaf block. First, the rename code (gfs2_rename in ops_inode.c) found the original directory entry and decided it could do its job by simply replacing the directory entry with another. Therefore it determined correctly that no block allocations were needed. Next, the rename code deleted the old directory entry prior to replacing it with the new name. Therefore, the soon-to-be replaced directory entry was temporarily made into a directory entry "sentinel" or a place holder at the start of a leaf block. Lastly, it went to re-add the replacement directory entry in that leaf block. However, when gfs2_dirent_find_space was looking for space in the leaf block, it used the wrong value for the sentinel. That threw off its calculations so later it decides it can't really re-use the sentinel and therefore must allocate a new leaf block. But because it previously decided to re-use the directory entry, it didn't waste the time to grab a new block allocation for the inode. Therefore, the inode's i_alloc pointer was still NULL and it crashes trying to reference it. In the case of sentinel directory entries, the entire dirent is reused, not just the "free space" portion of it, and therefore the function gfs2_dirent_find_space should use the value 0 rather than GFS2_DIRENT_SIZE(0) for the actual dirent size. Fixing this calculation enables the reproducer programs to work properly. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2010-07-15GFS2: BUG in gfs2_adjust_quotaAbhijith Das1-5/+3
HighMem pages on i686 do not get mapped to the buffer_heads and this was causing a NULL pointer dereference when we were trying to memset page buffers to zero. We now use zero_user() that kmaps the page and directly manipulates page data. This patch also fixes a boundary condition that was incorrect. Signed-off-by: Abhi Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2010-07-15GFS2: Fix kernel NULL pointer dereference by dlm_astdBob Peterson1-4/+8
This patch fixes a problem in an error path when looking up dinodes. There are two sister-functions, gfs2_inode_lookup and gfs2_process_unlinked_inode. Both functions acquire and hold the i_iopen glock for the dinode being looked up. The last thing they try to do is hold the i_gl glock for the dinode. If that glock fails for some reason, the error path was incorrectly calling gfs2_glock_put for the i_iopen glock twice. This resulted in the glock being prematurely freed. The "minimum hold time" usually kept the glock in memory, but the lock interface to dlm (aka lock_dlm) freed its memory for the glock. In some circumstances, it would cause dlm's dlm_astd daemon to try to call the bast function for the freed lock_dlm memory, which resulted in a NULL pointer dereference. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2010-07-15GFS2: recovery stuck on transaction lockBob Peterson1-0/+10
This patch fixes bugzilla bug #590878: GFS2: recovery stuck on transaction lock. We set the frozen flag on the glock when we receive a completion that cannot be delivered due to blocked locks. At that point we check to see whether the first waiting holder has the noexp flag set. If the noexp lock is queued later, then we need to unfreeze the glock at that point in time, namely, in the glock work function. This patch was originally written by Steve Whitehouse, but since he's on holiday, I'm submitting it. It's been well tested with a complex recovery test called revolver. Signed-off-by: Steve Whitehouse <swhiteho@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2010-07-15GFS2: O_TRUNC not working on stuffed files across clusterBob Peterson1-0/+1
This patch replaces a statement that got dropped out by accident. Without the patch, truncates on stuffed (very small) files cause those files to have an unpredictable size. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2010-07-14Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds8-93/+243
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6226/1: fix kprobe bug in ldr instruction emulation ARM: Update mach-types ARM: lockdep: fix unannotated irqs-on ARM: 6184/2: ux500: use neutral PRCMU base ARM: 6212/1: atomic ops: add memory constraints to inline asm ARM: 6211/1: atomic ops: fix register constraints for atomic64_add_unless ARM: 6210/1: Do not rely on reset defaults of L2X0_AUX_CTRL
2010-07-14Merge branch 'lmb-to-memblock' of ↵Linus Torvalds72-1025/+1025
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'lmb-to-memblock' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: lmb: rename to memblock
2010-07-14Merge branch 'merge' of ↵Linus Torvalds5-38/+45
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/fsl-booke: Fix address issue when using relocatable kernels powerpc/cpm1: Mark micropatch code/data static and __init powerpc/cpm1: Fix build with various CONFIG_*_UCODE_PATCH combinations powerpc/cpm: Reintroduce global spi_pram struct (fixes build issue)
2010-07-14ARM: 6226/1: fix kprobe bug in ldr instruction emulationNicolas Pitre1-2/+3
From: Bin Yang <bin.yang@marvell.com> Cc: stable@kernel.org Signed-off-by: Bin Yang <bin.yang@marvell.com> Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-14Input: synaptics - fix wrong dimensions checkTakashi Iwai1-0/+1
The commit 83ba9ea8a04b72dfee2515428c15e7414ba4fc61 ommitted the return line for the old synaptics model accidentally. This resulted in a wrong check, namely, the dimensions are checked for the old devices that don't support the query properly. This patch adds the return line back. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-07-14lmb: rename to memblockYinghai Lu72-1025/+1025
via following scripts FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/lmb/memblock/g' \ -e 's/LMB/MEMBLOCK/g' \ $FILES for N in $(find . -name lmb.[ch]); do M=$(echo $N | sed 's/lmb/memblock/g') mv $N $M done and remove some wrong change like lmbench and dlmb etc. also move memblock.c from lib/ to mm/ Suggested-by: Ingo Molnar <mingo@elte.hu> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-07-13Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds7-5/+29
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: input: i8042 - add runtime check in x86's i8042_platform_init Revert "Input: fixup X86_MRST selects" Revert "Input: do not force selecting i8042 on Moorestown" x86, mrst: Add i8042_detect API for Moorestwon platform x86: Add i8042 pre-detection hook to x86_platform_ops x86, platform: Export x86_platform to modules
2010-07-13Merge branch 'kvm-updates/2.6.35' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-5/+4
* 'kvm-updates/2.6.35' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: MMU: flush remote tlbs when overwriting spte with different pfn KVM: VMX: Fix host MSR_KERNEL_GS_BASE corruption
2010-07-12Linux 2.6.35-rc5v2.6.35-rc5Linus Torvalds1-1/+1
2010-07-12Merge branch 'arm/defconfig/reduced-v2.6.35-rc1' of ↵Linus Torvalds177-194157/+652
git://git.pengutronix.de/git/ukl/linux-2.6 * 'arm/defconfig/reduced-v2.6.35-rc1' of git://git.pengutronix.de/git/ukl/linux-2.6: ARM: reduce defconfigs This is a big change, but results in no loss of information, despite us losing almost 200k lines: 177 files changed, 652 insertions(+), 194157 deletions(-) and Grant Likely thinks powerpc can also use the same reduction technique. The python script that did the reduction looks like this: #! /usr/bin/env python # vim: set fileencoding=utf-8 : # Copyright (C) 2010 by Uwe Kleine-König <u.kleine-koenig@pengutronix.de> import re import subprocess import os import sys # This prevents including a timestamp in the .config which makes comparing a # bit easier. os.environ['KCONFIG_NOTIMESTAMP'] = 'Yes, please' # XXX: get these using getopt kernel_tree = '' # os.path.join(os.environ['HOME'], 'gsrc', 'linux-2.6') arch = 'arm' target = sys.argv[1] defconfig_src = os.path.join(kernel_tree, 'arch/%s/configs/%s' % (arch, target)) subprocess.check_call(['make', '-s', 'ARCH=%s' % arch, target]) origconfig = list(open('.config')) config = list(origconfig) config_size = os.stat('.config').st_size i = 0 while i < len(config): print 'test for %r' % config[i] defconfig = open(defconfig_src, 'w') defconfig.writelines(config[:i]) defconfig.writelines(config[i + 1:]) defconfig.close() subprocess.check_call(['make', '-s', 'ARCH=%s' % arch, target]) if os.stat('.config').st_size == config_size and list(open('.config')) == origconfig: del config[i] else: i += 1 defconfig = open(defconfig_src, 'w') defconfig.writelines(config) defconfig.close() which is pretty self-explanatory. Acked-by: Nicolas Pitre <nico@fluxnic.net> Acked-by: Russell King <linux@arm.linux.org.uk> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-12Merge branch 'fix/hda' of ↵Linus Torvalds2-1/+31
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Restore cleared pin controls on resume
2010-07-12Merge branch 'v4l_for_2.6.35' of ↵Linus Torvalds18-163/+169
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: V4L/DVB: uvc: Fix multiple symbols definitions with UVC gadget and host drivers V4L/DVB: v4l: mem2mem_testdev: fix g_fmt NULL pointer dereference V4L/DVB: uvcvideo: Power line frequency control doesn't support GET_MIN/MAX/RES V4L/DVB: ivtv: Add delay to ensure the decoder always restarts with a blank screen V4L/DVB: Documentation: Add the Philips FQ1236 MK5 to video4linux/CARDLIST.tuner V4L/DVB: tveeprom: Add an entry for tuner code 168: a TCL M30WTP-4N-E tuner V4L/DVB: tuner: Add a definition for the Philips FQ1236 MK5 NTSC tuner V4L/DVB: OMAP_VOUT: fix: Module params were not working through bootargs V4L/DVB: OMAP_VOUT: fix: Replaced dma-sg with dma-contig V4L/DVB: OMAP_VOUT:Build FIX: Rebased against latest DSS2 changes
2010-07-12Merge branch 'for-linus' of ↵Linus Torvalds7-5/+91
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: HID: Send Report ID when numbered reports are sent over the control endpoint. HID: Enable HID_QUIRK_MULTI_INPUT for Retro Adaptor HID: add support for CH Eclipse yoke HID: eliminate a double lock in debug code HID: ntrig: add support for new firwmare versions HID: check for HID_QUIRK_IGNORE during probing HID: roccat: fix modules interdependencies
2010-07-12MAINTAINERS: fix EDAC-I7CORE file patternsJoe Perches1-1/+3
File patterns are one per line. Fixed include file location. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-12ocfs2: tighten up strlen() checkingDan Carpenter1-1/+1
This function is only called from one place and it's like this: dlm_register_domain(conn->cc_name, dlm_key, &fs_version); The "conn->cc_name" is 64 characters long. If strlen(conn->cc_name) were equal to O2NM_MAX_NAME_LEN (64) that would be a bug because strlen() doesn't count the NULL character. In fact, if you look how O2NM_MAX_NAME_LEN is used, it mostly describes 64 character buffers. The only exception is nd_name from struct o2nm_node. Anyway I looked into it and in this case the domain string comes from osb->uuid_str in ocfs2_setup_osb_uuid(). That's 32 characters and NULL which easily fits into O2NM_MAX_NAME_LEN. This patch doesn't change how the code works, but I think it makes the code a little cleaner. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-07-12ocfs2: Make xattr reflink work with new local alloc reservation.Tao Ma1-36/+90
The new reservation code in local alloc has add the limitation that the caller should handle the case that the local alloc doesn't give use enough contiguous clusters. It make the old xattr reflink code broken. So this patch udpate the xattr reflink code so that it can handle the case that local alloc give us one cluster at a time. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-07-12ocfs2: make xattr extension work with new local alloc reservation.Tao Ma1-29/+45
The old ocfs2_xattr_extent_allocation is too optimistic about the clusters we can get. So actually if the file system is too fragmented, ocfs2_add_clusters_in_btree will return us with EGAIN and we need to allocate clusters once again. So this patch change it to a while loop so that we can allocate clusters until we reach clusters_to_add. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Cc: stable@kernel.org
2010-07-12ocfs2: Remove the redundant cpu_to_le64.Tao Ma1-1/+1
In ocfs2_block_group_alloc, we set c_blkno by bg->bg_blkno. But actually bg->bg_blkno is already changed to little endian in ocfs2_block_group_fill. So remove the extra cpu_to_le64. Reported-by: Marcos Matsunaga <Marcos.Matsunaga@oracle.com> Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-07-12ocfs2/dlm: don't access beyond bitmap sizeWengang Wang1-1/+1
dlm->recovery_map is defined as unsigned long recovery_map[BITS_TO_LONGS(O2NM_MAX_NODES)]; We should treat O2NM_MAX_NODES as the bit map size in bits. This patches fixes a bit operation that takes O2NM_MAX_NODES + 1 as bitmap size. Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-07-12ocfs2: No need to zero pages past i_size.Joel Becker1-4/+18
When ocfs2 fills a hole, it does so by allocating clusters. When a cluster is larger than the write, ocfs2 must zero the portions of the cluster outside of the write. If the clustersize is smaller than a pagecache page, this is handled by the normal pagecache mechanisms, but when the clustersize is larger than a page, ocfs2's write code will zero the pages adjacent to the write. This makes sure the entire cluster is zeroed correctly. Currently ocfs2 behaves exactly the same when writing past i_size. However, this means ocfs2 is writing zeroed pages for portions of a new cluster that are beyond i_size. The page writeback code isn't expecting this. It treats all pages past the one containing i_size as left behind due to a previous truncate operation. Thankfully, ocfs2 calculates the number of pages it will be working on up front. The rest of the write code merely honors the original calculation. We can simply trim the number of pages to only cover the actual file data. Signed-off-by: Joel Becker <joel.becker@oracle.com> Cc: stable@kernel.org
2010-07-12ARM: Update mach-typesRussell King1-3/+149
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-12KVM: MMU: flush remote tlbs when overwriting spte with different pfnXiao Guangrong1-0/+2
After remove a rmap, we should flush all vcpu's tlb Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-07-11HID: Send Report ID when numbered reports are sent over the control endpoint.Alan Ott1-3/+10
The Report ID wasn't sent as part of the payload for reports which were sent over the control endpoint. This is required by section 8.1 of the HID spec. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: Jiri Kosina <jkosina@suse.cz>