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c708c57 Jan Glauber 20 April 2011, 08:15:31 UTC [S390] prng: prevent access beyond end of stack While initializing the state of the prng only the first 8 bytes of random data where used, the second 8 bytes were read from the memory after the stack. If only 64 bytes of the kernel stack are used and CONFIG_DEBUG_PAGEALLOC is enabled a kernel panic may occur because of the invalid page access. Use the correct multiplicator to stay within the random data buffer. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> 20 April 2011, 08:15:43 UTC
65f8da4 Stefan Weinhuber 20 April 2011, 08:15:30 UTC [S390] dasd: fix race between open and offline The dasd_open function uses the private_data pointer of the gendisk to find the dasd_block structure that matches the gendisk. When a DASD device is set offline, we set the private_data pointer of the gendisk to NULL and later remove the dasd_block structure, but there is still a small race window, in which dasd_open could first read a pointer from the private_data field and then try to use it, after the structure has already been freed. To close this race window, we will store a pointer to the dasd_devmap structure of the base device in the private_data field. The devmap entries are not deleted, and we already have proper locking and reference counting in place, so that we can safely get from a devmap pointer to the dasd_device and dasd_block structures of the device. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> 20 April 2011, 08:15:43 UTC
28a8397 CoolCold 20 April 2011, 05:40:01 UTC md: Update documentation for sync_min and sync_max entries linux/Documentation/md.txt is missing description for sync_min and sync_max entries. This patch adds description for sync_min and sync_max entries. Signed-off-by: Roman Ovchinnikov <coolthecold@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de> 20 April 2011, 05:40:01 UTC
fee6872 Krzysztof Wojcik 20 April 2011, 05:39:53 UTC md: Cleanup after raid45->raid0 takeover Problem: After raid4->raid0 takeover operation, another takeover operation (e.g raid0->raid10) results "kernel oops". Root cause: Variables 'degraded' in mddev structure is not cleared on raid45->raid0 takeover. This patch reset this variable. Signed-off-by: Krzysztof Wojcik <krzysztof.wojcik@intel.com> Signed-off-by: NeilBrown <neilb@suse.de> 20 April 2011, 05:39:53 UTC
3b71bd9 NeilBrown 20 April 2011, 05:38:18 UTC md: Fix dev_sectors on takeover from raid0 to raid4/5 A raid0 array doesn't set 'dev_sectors' as each device might contribute a different number of sectors. So when converting to a RAID4 or RAID5 we need to set dev_sectors as they need the number. We have already verified that in fact all devices do contribute the same number of sectors, so use that number. Signed-off-by: NeilBrown <neilb@suse.de> 20 April 2011, 05:38:18 UTC
2b7da30 NeilBrown 20 April 2011, 05:38:07 UTC md/raid5: remove setting of ->queue_lock We previously needed to set ->queue_lock to match the raid5 device_lock so we could safely use queue_flag_* operations (e.g. for plugging). which test the ->queue_lock is in fact locked. However that need has completely gone away and is unlikely to come back to remove this now-pointless setting. Signed-off-by: NeilBrown <neilb@suse.de> 20 April 2011, 05:38:07 UTC
2f666bc Linus Torvalds 20 April 2011, 01:32:57 UTC Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms: pll tweaks for r7xx drm/nouveau: fix allocation of notifier object drm/nouveau: fix notifier memory corruption bug drm/nouveau: fix pinning of notifier block drm/nouveau: populate ttm_alloced with false, when it's not drm/nouveau: fix nv30 pcie boards drm/nouveau: split ramin_lock into two locks, one hardirq safe drm/radeon/kms: adjust evergreen display watermark setup drm/radeon/kms: add connectors even if i2c fails drm/radeon/kms: fix bad shift in atom iio table parser 20 April 2011, 01:32:57 UTC
204ae24 Cédric Cano 19 April 2011, 15:07:13 UTC drm/radeon/kms: fix IH writeback on r6xx+ on big endian machines agd5f: fix commit message. Signed-off-by: Cedric Cano <ccano@interfaceconcept.com> Reviewed-by: Michel Dänzer <michel@daenzer.net> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 20 April 2011, 00:45:21 UTC
211588a Chris Mason 20 April 2011, 00:12:40 UTC Btrfs: do some plugging in the submit_bio threads The Btrfs submit bio threads have a small number of threads responsible for pushing down bios we've collected for a large number of devices. Since we do all the bios for a single device at once, we want to make sure we unplug and send down the bios for each device as we're done processing them. The new plugging API removed the btrfs code to unplug while processing bios, this adds it back with the new API. Signed-off-by: Chris Mason <chris.mason@oracle.com> 20 April 2011, 00:12:40 UTC
5785e53 Alex Deucher 19 April 2011, 19:24:59 UTC drm/radeon/kms: pll tweaks for r7xx Prefer min m to max p only on pre-r7xx asics. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=36197 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> 19 April 2011, 23:39:37 UTC
9db4e43 Mikhail Kshevetskiy 27 March 2011, 00:05:00 UTC tty/n_gsm: fix bug in CRC calculation for gsm1 mode Problem description: gsm_queue() calculate a CRC for arrived frames. As a last step of CRC calculation it call gsm->fcs = gsm_fcs_add(gsm->fcs, gsm->received_fcs); This work perfectly for the case of GSM0 mode as gsm->received_fcs contain the last piece of data required to generate final CRC. gsm->received_fcs is not used for GSM1 mode. Thus we put an additional byte to CRC calculation. As result we get a wrong CRC and reject incoming frame. Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@gmail.com> Acked-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 19 April 2011, 23:38:50 UTC
5680e94 Uwe Kleine-König 11 April 2011, 08:59:09 UTC serial/imx: read cts state only after acking cts change irq If cts changes between reading the level at the cts input (USR1_RTSS) and acking the irq (USR1_RTSD) the last edge doesn't generate an irq and uart_handle_cts_change is called with a outdated value for cts. The race was introduced by commit ceca629 ([ARM] 2971/1: i.MX uart handle rts irq) Reported-by: Arwed Springer <Arwed.Springer@de.trumpf.com> Tested-by: Arwed Springer <Arwed.Springer@de.trumpf.com> Cc: stable@kernel.org # 2.6.14+ Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 19 April 2011, 23:36:25 UTC
0f6db21 Niels de Vos 18 April 2011, 14:26:03 UTC parport_pc.c: correctly release the requested region for the IT887x Replace release_resource() by release_region() and also fix the inconsistency in the size of the requested/released region. The size of the resource should be 32, not 0x8 like it was corrected in commit e7c310c36e5fdf1b83a459e5db167bfbd86137db already. CC: linux-serial@vger.kernel.org Reported-by: Julia Lawall <julia@diku.dk> Signed-off-by: Niels de Vos <ndevos@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 19 April 2011, 23:36:24 UTC
be761d5 Dave Airlie 19 April 2011, 23:21:34 UTC Merge remote branch 'nouveau/drm-nouveau-fixes' of /ssd/git/drm-nouveau-next into drm-fixes * 'nouveau/drm-nouveau-fixes' of /ssd/git/drm-nouveau-next: drm/nouveau: fix allocation of notifier object drm/nouveau: fix notifier memory corruption bug drm/nouveau: fix pinning of notifier block drm/nouveau: populate ttm_alloced with false, when it's not drm/nouveau: fix nv30 pcie boards drm/nouveau: split ramin_lock into two locks, one hardirq safe 19 April 2011, 23:21:34 UTC
e4ac93b Marcin Slusarz 19 April 2011, 21:52:42 UTC drm/nouveau: fix allocation of notifier object Commit 73412c3854c877e5f37ad944ee8977addde4d35a ("drm/nouveau: allocate kernel's notifier object at end of block") intended to align end of notifier block to page boundary, but start of block was miscalculated to be off by -16 bytes. Fix it. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> 19 April 2011, 22:51:34 UTC
a18d89c Marcin Slusarz 19 April 2011, 21:50:48 UTC drm/nouveau: fix notifier memory corruption bug nouveau_bo_wr32 expects offset to be in words, but we pass value in bytes, so after commit 73412c3854c877e5f37ad944ee8977addde4d35a ("drm/nouveau: allocate kernel's notifier object at end of block") we started to overwrite some memory after notifier buffer object (previously m2mf_ntfy was always 0, so it didn't matter it was a value in bytes). Reported-by: Dominik Brodowski <linux@dominikbrodowski.net> Reported-by: Nigel Cunningham <lkml@nigelcunningham.com.au> Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Pekka Paalanen <pq@iki.fi> Cc: stable@kernel.org [2.6.38] Signed-off-by: Ben Skeggs <bskeggs@redhat.com> 19 April 2011, 22:51:31 UTC
11dea1a Ben Skeggs 17 April 2011, 23:12:25 UTC drm/nouveau: fix pinning of notifier block Problem introduced with commit 6ba9a68317781537d6184d3fdb2d0f20c97da3a4 Reported-by: Bob Gleitsmann <rjgleits@bellsouth.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> 19 April 2011, 22:51:23 UTC
8706398 Ben Skeggs 11 April 2011, 06:37:44 UTC drm/nouveau: populate ttm_alloced with false, when it's not Caught with kmemcheck on unrelated business. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> 19 April 2011, 22:50:40 UTC
01d1533 Ben Skeggs 08 April 2011, 00:07:34 UTC drm/nouveau: fix nv30 pcie boards Wasn't aware they even existed, apparently they do! They're actually AGP chips with a bridge as far as I can tell, which puts them in the same boat as nv40/nv45. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> 19 April 2011, 22:50:37 UTC
04eb34a Ben Skeggs 06 April 2011, 03:28:35 UTC drm/nouveau: split ramin_lock into two locks, one hardirq safe Fixes a possible lock ordering reversal between context_switch_lock and ramin_lock. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Francisco Jerez <currojerez@riseup.net> 19 April 2011, 22:50:14 UTC
19234c0 Rafael J. Wysocki 19 April 2011, 22:36:11 UTC PM: Add missing syscore_suspend() and syscore_resume() calls Device suspend/resume infrastructure is used not only by the suspend and hibernate code in kernel/power, but also by APM, Xen and the kexec jump feature. However, commit 40dc166cb5dddbd36aa4ad11c03915ea (PM / Core: Introduce struct syscore_ops for core subsystems PM) failed to add syscore_suspend() and syscore_resume() calls to that code, which generally leads to breakage when the features in question are used. To fix this problem, add the missing syscore_suspend() and syscore_resume() calls to arch/x86/kernel/apm_32.c, kernel/kexec.c and drivers/xen/manage.c. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Ian Campbell <ian.campbell@citrix.com> 19 April 2011, 22:36:11 UTC
2ea4db6 Thomas Gleixner 19 April 2011, 20:52:58 UTC xtensa: Fixup irq conversion fallout and nmi_count Some unnamed moron fatfingered the arguments of the irq chip callbacks to irq_chip instead of irq_data. While at it remove the nmi_count() print in arch_show_interrupts() which has been broken before the irq conversion already. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 19 April 2011, 22:32:09 UTC
6cf5443 Linus Torvalds 19 April 2011, 22:16:41 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (51 commits) netfilter: ipset: Fix the order of listing of sets ip6_pol_route panic: Do not allow VLAN on loopback bnx2x: Fix port identification problem r8169: add Realtek as maintainer. ip: ip_options_compile() resilient to NULL skb route bna: fix memory leak during RX path cleanup bna: fix for clean fw re-initialization usbnet: Fix up 'FLAG_POINTTOPOINT' and 'FLAG_MULTI_PACKET' overlaps. iwlegacy: fix tx_power initialization Revert "tcp: disallow bind() to reuse addr/port" qlcnic: limit skb frags for non tso packet net: can: mscan: fix build breakage in mpc5xxx_can netfilter: ipset: set match and SET target fixes netfilter: ipset: bitmap:ip,mac type requires "src" for MAC sctp: fix oops while removed transport still using as retran path sctp: fix oops when updating retransmit path with DEBUG on net: Disable NETIF_F_TSO_ECN when TSO is disabled net: Disable all TSO features when SG is disabled sfc: Use rmb() to ensure reads occur in order ieee802154: Remove hacked CFLAGS in net/ieee802154/Makefile ... 19 April 2011, 22:16:41 UTC
a96e5b9 OGAWA Hirofumi 18 April 2011, 15:48:55 UTC nfsd4: Fix filp leak 23fcf2ec93fb8573a653408316af599939ff9a8e (nfsd4: fix oops on lock failure) The above patch breaks free path for stp->st_file. If stp was inserted into sop->so_stateids, we have to free stp->st_file refcount. Because stp->st_file refcount itself is taken whether or not any refcounts are taken on the stp->st_file->fi_fds[]. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com> 19 April 2011, 21:31:13 UTC
97ddec6 Linus Torvalds 19 April 2011, 19:46:32 UTC Merge branch 'for-linus' of 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: pci-label: Fix build failure when CONFIG_NLS is set to 'm' by allmodconfig 19 April 2011, 19:46:32 UTC
0b0dc0f David S. Miller 19 April 2011, 18:28:35 UTC Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6 19 April 2011, 18:28:35 UTC
9d914b3 Linus Torvalds 19 April 2011, 17:58:13 UTC Merge branch 'x86-fixes-for-linus' of 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: x86, gart: Make sure GART does not map physmem above 1TB x86, gart: Set DISTLBWALKPRB bit always x86, gart: Convert spaces to tabs in enable_gart_translation 19 April 2011, 17:58:13 UTC
4ae0ff1 Linus Torvalds 19 April 2011, 17:56:46 UTC Merge branch 'timer-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timer-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: RTC: rtc-omap: Fix a leak of the IRQ during init failure posix clocks: Replace mutex with reader/writer semaphore 19 April 2011, 17:56:46 UTC
96ad999 Linus Torvalds 19 April 2011, 17:56:02 UTC Merge branch 'perf-fixes-for-linus' of 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: perf, x86: Fix AMD family 15h FPU event constraints perf, x86: Fix pre-defined cache-misses event for AMD family 15h cpus perf evsel: Fix use of inherit perf hists browser: Fix seg fault when annotate null symbol 19 April 2011, 17:56:02 UTC
71460af Linus Torvalds 19 April 2011, 17:54:44 UTC Revert "[media] V4L: videobuf, don't use dma addr as physical" This reverts commit 35d9f510b67b10338161aba6229d4f55b4000f5b. Quoth Jiri Slaby: "It fixes mmap when IOMMU is used on x86 only, but breaks architectures like ARM or PPC where virt_to_phys(dma_alloc_coherent) doesn't work. We need there dma_mmap_coherent or similar (the trickery what snd_pcm_default_mmap does but in some saner way). But this cannot be done at this phase." Requested-by: Jiri Slaby <jslaby@suse.cz> Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> Cc: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 April 2011, 17:54:44 UTC
f28c617 Linus Torvalds 19 April 2011, 17:52:51 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: filesystem hang caused by incorrect lock order GFS2: Don't try to deallocate unlinked inodes when mounted ro GFS2: directly write blocks past i_size GFS2: write_end error path fails to unlock transaction lock 19 April 2011, 17:52:51 UTC
e428d8d Guenter Roeck 18 April 2011, 16:55:59 UTC hwmon: (max34440) Add driver documentation MAX34440 and MAX34441 have their own driver, thus there should be explicit documentation instead of mentioning the chips in the generic PMBus driver documentation. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com> 19 April 2011, 15:50:00 UTC
4af33f1 Guenter Roeck 18 April 2011, 16:53:54 UTC hwmon: (max16064) Add driver documentation MAX16064 has its own driver, thus should have its own documentation instead of being mentioned in the generic PMBus driver documentation. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com> 19 April 2011, 15:49:59 UTC
2669d9f Guenter Roeck 18 April 2011, 16:51:04 UTC hwmon: (max8688) Add driver documentation MAX8688 has its own driver, thus should have its own documentation instead of being mentioned in the generic PMBus driver documentation. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com> 19 April 2011, 15:49:58 UTC
180b3d8 Guenter Roeck 18 April 2011, 16:48:58 UTC hwmon: (pmbus) Documentation updates Fix spelling, correct label name error, and add missing attribute to PMBus driver documentation. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com> 19 April 2011, 15:49:57 UTC
c1a76b4 Guenter Roeck 18 April 2011, 16:43:22 UTC hwmon: (smm665) Fix spelling error in driver documentation tempererature may sound interesting, but temperature is still preferred. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org> 19 April 2011, 15:49:57 UTC
3b17857 Guenter Roeck 15 March 2011, 00:54:25 UTC hwmon: (pmbus) Removed unused variable from struct pmbus_data struct pmbus_data included an unused variable named status_bits. Remove it. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com> 19 April 2011, 15:49:56 UTC
c3a2f0a Guenter Roeck 02 April 2011, 15:26:34 UTC hwmon: Add submitting-patches checklist to documentation When writing hardware monitoring drivers, there are some common pitfalls which keep coming up in code reviews. This patch provides a document describing all those pitfalls and how to avoid them. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org> 19 April 2011, 15:49:55 UTC
6981d18 Takashi Iwai 15 April 2011, 08:11:12 UTC ALSA: hda - Add a fix-up for Acer dmic with ALC271x codec Acer laptops with ALC271x needs a magic initialization for digital-mic to make it working with mono streams (and PulseAudio). Added a fix-up applied to Acer with ALC271x generically. Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> 19 April 2011, 14:45:31 UTC
a8a8a09 Jozsef Kadlecsik 19 April 2011, 13:59:15 UTC netfilter: ipset: Fix the order of listing of sets A restoreable saving of sets requires that list:set type of sets come last and the code part which should have taken into account the ordering was broken. The patch fixes the listing order. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> 19 April 2011, 13:59:15 UTC
60735b6 Tao Ma 19 April 2011, 11:50:40 UTC block: Remove the extra check in queue_requests_store In queue_requests_store, the code looks like if (rl->count[BLK_RW_SYNC] >= q->nr_requests) { blk_set_queue_full(q, BLK_RW_SYNC); } else if (rl->count[BLK_RW_SYNC]+1 <= q->nr_requests) { blk_clear_queue_full(q, BLK_RW_SYNC); wake_up(&rl->wait[BLK_RW_SYNC]); } If we don't satify the situation of "if", we can get that rl->count[BLK_RW_SYNC} < q->nr_quests. It is the same as rl->count[BLK_RW_SYNC]+1 <= q->nr_requests. All the "else" should satisfy the "else if" check so it isn't needed actually. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 19 April 2011, 11:51:53 UTC
ed5302d Liu Yuan 19 April 2011, 11:47:58 UTC block, blk-sysfs: Fix an err return path in blk_register_queue() We do not call blk_trace_remove_sysfs() in err return path if kobject_add() fails. This path fixes it. Cc: stable@kernel.org Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 19 April 2011, 11:51:53 UTC
d350e6b Jens Axboe 19 April 2011, 11:34:14 UTC block: remove stale kerneldoc member from __blk_run_queue() We don't pass in a 'force_kblockd' anymore, get rid of the stsale comment. Reported-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 19 April 2011, 11:34:14 UTC
c21e6be Jens Axboe 19 April 2011, 11:32:46 UTC block: get rid of QUEUE_FLAG_REENTER We are currently using this flag to check whether it's safe to call into ->request_fn(). If it is set, we punt to kblockd. But we get a lot of false positives and excessive punts to kblockd, which hurts performance. The only real abuser of this infrastructure is SCSI. So export the async queue run and convert SCSI over to use that. There's room for improvement in that SCSI need not always use the async call, but this fixes our performance issue and they can fix that up in due time. Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 19 April 2011, 11:32:46 UTC
855357a Robert Richter 16 April 2011, 00:27:54 UTC perf, x86: Fix AMD family 15h FPU event constraints Depending on the unit mask settings some FPU events may be scheduled only on cpu counter #3. This patch fixes this. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@googlemail.com> Link: http://lkml.kernel.org/r/1302913676-14352-3-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu> 19 April 2011, 08:07:55 UTC
83112e6 Andre Przywara 16 April 2011, 00:27:53 UTC perf, x86: Fix pre-defined cache-misses event for AMD family 15h cpus With AMD cpu family 15h a unit mask was introduced for the Data Cache Miss event (0x041/L1-dcache-load-misses). We need to enable bit 0 (first data cache miss or streaming store to a 64 B cache line) of this mask to proper count data cache misses. Now we set this bit for all families and models. In case a PMU does not implement a unit mask for event 0x041 the bit is ignored. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1302913676-14352-2-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu> 19 April 2011, 08:07:54 UTC
5f45c69 Jens Axboe 19 April 2011, 07:10:35 UTC cfq-iosched: read_lock() does not always imply rcu_read_lock() For some configurations of CONFIG_PREEMPT that is not true. So get rid of __call_for_each_cic() and always uses the explicitly rcu_read_lock() protected call_for_each_cic() instead. This fixes a potential bug related to IO scheduler removal or online switching. Thanks to Paul McKenney for clarifying this. Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 19 April 2011, 07:10:35 UTC
f0e615c Linus Torvalds 19 April 2011, 04:26:00 UTC Linux 2.6.39-rc4 19 April 2011, 04:26:00 UTC
e024f69 Linus Torvalds 18 April 2011, 22:44:29 UTC Merge branch 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msm * 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msm: msm: timer: fix missing return value msm: Remove extraneous ffa device check 18 April 2011, 22:44:29 UTC
2ca6f62 Rafael J. Wysocki 18 April 2011, 21:58:59 UTC PM: Fix error code paths executed after failing syscore_suspend() If syscore_suspend() fails in suspend_enter(), create_image() or resume_target_kernel(), it is necessary to call sysdev_resume(), because sysdev_suspend() has been called already and succeeded and we are going to abort the transition. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> 18 April 2011, 21:58:59 UTC
96fd2d5 Linus Torvalds 18 April 2011, 20:29:03 UTC Merge branch 'for-linus' of 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: xen-kbdfront - fix mouse getting stuck after save/restore Input: estimate number of events per packet Input: evdev - indicate buffer overrun with SYN_DROPPED Input: document event types and codes and their intended use Input: add KEY_IMAGES specifically for AL Image Browser Input: twl4030_keypad - fix potential NULL dereference in twl4030_kp_probe() Input: h3600_ts - fix error handling at connect Input: twl4030_keypad - avoid potential NULL-pointer dereference 18 April 2011, 20:29:03 UTC
8a83f33 Linus Torvalds 18 April 2011, 20:21:18 UTC Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block * 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: add blk_run_queue_async block: blk_delay_queue() should use kblockd workqueue md: fix up raid1/raid10 unplugging. md: incorporate new plugging into raid5. md: provide generic support for handling unplug callbacks. md - remove old plugging code. md/dm - remove remains of plug_fn callback. md: use new plugging interface for RAID IO. block: drop queue lock before calling __blk_run_queue() for kblockd punt Revert "block: add callback function for unplug notification" block: Enhance new plugging support to support general callbacks 18 April 2011, 20:21:18 UTC
bd900d4 Jens Axboe 18 April 2011, 20:06:57 UTC block: kill blk_flush_plug_list() export With all drivers and file systems converted, we only have in-core use of this function. So remove the export. Reporteed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 18 April 2011, 20:06:57 UTC
5d5b1b9 Linus Torvalds 18 April 2011, 19:24:24 UTC Merge branch 'merge' of 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/powermac: Build fix with SMP and CPU hotplug powerpc/perf_event: Skip updating kernel counters if register value shrinks powerpc: Don't write protect kernel text with CONFIG_DYNAMIC_FTRACE enabled powerpc: Fix oops if scan_dispatch_log is called too early powerpc/pseries: Use a kmem cache for DTL buffers powerpc/kexec: Fix regression causing compile failure on UP powerpc/85xx: disable Suspend support if SMP enabled powerpc/e500mc: Remove CPU_FTR_MAYBE_CAN_NAP/CPU_FTR_MAYBE_CAN_DOZE powerpc/book3e: Fix CPU feature handling on 64-bit e5500 powerpc: Check device status before adding serial device powerpc/85xx: Don't add disabled PCIe devices 18 April 2011, 19:24:24 UTC
adff377 Linus Torvalds 18 April 2011, 19:24:05 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable * git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (24 commits) Btrfs: fix free space cache leak Btrfs: avoid taking the chunk_mutex in do_chunk_alloc Btrfs end_bio_extent_readpage should look for locked bits Btrfs: don't force chunk allocation in find_free_extent Btrfs: Check validity before setting an acl Btrfs: Fix incorrect inode nlink in btrfs_link() Btrfs: Check if btrfs_next_leaf() returns error in btrfs_real_readdir() Btrfs: Check if btrfs_next_leaf() returns error in btrfs_listxattr() Btrfs: make uncache_state unconditional btrfs: using cached extent_state in set/unlock combinations Btrfs: avoid taking the trans_mutex in btrfs_end_transaction Btrfs: fix subvolume mount by name problem when default mount subvolume is set fix user annotation in ioctl.c Btrfs: check for duplicate iov_base's when doing dio reads btrfs: properly handle overlapping areas in memmove_extent_buffer Btrfs: fix memory leaks in btrfs_new_inode() Btrfs: check for duplicate iov_base's when doing dio reads Btrfs: reuse the extent_map we found when calling btrfs_get_extent Btrfs: do not use async submit for small DIO io's Btrfs: don't split dio bios if we don't have to ... 18 April 2011, 19:24:05 UTC
d8bdc59 Linus Torvalds 18 April 2011, 17:36:54 UTC proc: do proper range check on readdir offset Rather than pass in some random truncated offset to the pid-related functions, check that the offset is in range up-front. This is just cleanup, the previous commit fixed the real problem. Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 18 April 2011, 17:36:54 UTC
c78193e Linus Torvalds 18 April 2011, 17:35:30 UTC next_pidmap: fix overflow condition next_pidmap() just quietly accepted whatever 'last' pid that was passed in, which is not all that safe when one of the users is /proc. Admittedly the proc code should do some sanity checking on the range (and that will be the next commit), but that doesn't mean that the helper functions should just do that pidmap pointer arithmetic without checking the range of its arguments. So clamp 'last' to PID_MAX_LIMIT. The fact that we then do "last+1" doesn't really matter, the for-loop does check against the end of the pidmap array properly (it's only the actual pointer arithmetic overflow case we need to worry about, and going one bit beyond isn't going to overflow). [ Use PID_MAX_LIMIT rather than pid_max as per Eric Biederman ] Reported-by: Tavis Ormandy <taviso@cmpxchg8b.com> Analyzed-by: Robert Święcki <robert@swiecki.net> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 18 April 2011, 17:35:30 UTC
4ee6362 J. Bruce Fields 15 April 2011, 22:08:26 UTC nfsd4: fix struct file leak on delegation Introduced by acfdf5c383b38f7f4dddae41b97c97f1ae058f49. Cc: stable@kernel.org Reported-by: Gerhard Heift <ml-nfs-linux-20110412-ef47@gheift.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com> 18 April 2011, 17:30:56 UTC
c36b58e Igor Mammedov 18 April 2011, 17:17:17 UTC Input: xen-kbdfront - fix mouse getting stuck after save/restore Mouse gets "stuck" after restore of PV guest but buttons are in working condition. If driver has been configured for ABS coordinates at start it will get XENKBD_TYPE_POS events and then suddenly after restore it'll start getting XENKBD_TYPE_MOTION events, that will be dropped later and they won't get into user-space. Regression was introduced by hunk 5 and 6 of 5ea5254aa0ad269cfbd2875c973ef25ab5b5e9db ("Input: xen-kbdfront - advertise either absolute or relative coordinates"). Driver on restore should ask xen for request-abs-pointer again if it is available. So restore parts that did it before 5ea5254. Acked-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Igor Mammedov <imammedo@redhat.com> [v1: Expanded the commit description] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> 18 April 2011, 17:17:45 UTC
80b4895 Jeff Brown 18 April 2011, 17:08:02 UTC Input: estimate number of events per packet Calculate a default based on the number of ABS axes, REL axes, and MT slots for the device during input device registration. Signed-off-by: Jeff Brown <jeffbrown@android.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> 18 April 2011, 17:15:43 UTC
665d3e2 Joerg Roedel 18 April 2011, 13:45:46 UTC x86, gart: Make sure GART does not map physmem above 1TB The GART can only map physical memory below 1TB. Make sure the gart driver in the kernel does not try to map memory above 1TB. Cc: <stable@kernel.org> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Link: http://lkml.kernel.org/r/1303134346-5805-5-git-send-email-joerg.roedel@amd.com Signed-off-by: H. Peter Anvin <hpa@zytor.com> 18 April 2011, 16:26:49 UTC
c34151a Joerg Roedel 18 April 2011, 13:45:45 UTC x86, gart: Set DISTLBWALKPRB bit always The DISTLBWALKPRB bit must be set for the GART because the gatt table is mapped UC. But the current code does not set the bit at boot when the BIOS setup the aperture correctly. Fix that by setting this bit when enabling the GART instead of the other places. Cc: <stable@kernel.org> Cc: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Link: http://lkml.kernel.org/r/1303134346-5805-4-git-send-email-joerg.roedel@amd.com Signed-off-by: H. Peter Anvin <hpa@zytor.com> 18 April 2011, 16:26:48 UTC
af289bf Joerg Roedel 18 April 2011, 13:45:44 UTC x86, gart: Convert spaces to tabs in enable_gart_translation Probably by copy&paste this function was indented by spaces. Convert this to tabs. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Link: http://lkml.kernel.org/r/1303134346-5805-3-git-send-email-joerg.roedel@amd.com Signed-off-by: H. Peter Anvin <hpa@zytor.com> 18 April 2011, 16:26:48 UTC
b3c27b5 Guennadi Liakhovetski 15 April 2011, 18:17:34 UTC ASoC: add a module alias to the FSI driver This patch enables FSI driver autoloading on sh-mobile systems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Simon Horman <horms@verge.net.au Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> 18 April 2011, 16:14:28 UTC
fac56c2 Mark Brown 18 April 2011, 16:12:14 UTC Merge commit 'v2.6.39-rc3' into for-2.6.39 18 April 2011, 16:12:14 UTC
44ad37d Bob Peterson 17 March 2011, 20:19:58 UTC GFS2: filesystem hang caused by incorrect lock order This patch fixes a deadlock in GFS2 where two processes are trying to reclaim an unlinked dinode: One holds the inode glock and calls gfs2_lookup_by_inum trying to look up the inode, which it can't, due to I_FREEING. The other has set I_FREEING from vfs and is at the beginning of gfs2_delete_inode waiting for the glock, which is held by the first. The solution is to add a new non_block parameter to the gfs2_iget function that causes it to return -ENOENT if the inode is being freed. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> 18 April 2011, 14:23:50 UTC
001e8e8 Steven Whitehouse 30 March 2011, 13:17:51 UTC GFS2: Don't try to deallocate unlinked inodes when mounted ro This adds a couple of missing tests to avoid read-only nodes from attempting to deallocate unlinked inodes. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Reported-by: Michel Andre de la Porte <madelaporte@ubi.com> 18 April 2011, 14:23:12 UTC
0ee5320 Benjamin Marzinski 18 March 2011, 02:54:46 UTC GFS2: directly write blocks past i_size GFS2 was relying on the writepage code to write out the zeroed data for fallocate. However, with FALLOC_FL_KEEP_SIZE set, this may be past i_size. If it is, it will be ignored. To work around this, gfs2 now calls write_dirty_buffer directly on the buffer_heads when FALLOC_FL_KEEP_SIZE is set, and it's writing past i_size. This version is just a cleanup of my last version Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> 18 April 2011, 14:22:52 UTC
deab72d Bob Peterson 16 March 2011, 20:32:39 UTC GFS2: write_end error path fails to unlock transaction lock I did an audit of gfs2's transaction glock for bugzilla bug 658619 and ran across this: In function gfs2_write_end, in the unlikely event that gfs2_meta_inode_buffer returns an error, the code may forget to unlock the transaction lock because the "failed" label appears after the call to function gfs2_trans_end. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> 18 April 2011, 14:22:35 UTC
f65647c Chris Mason 18 April 2011, 12:55:34 UTC Btrfs: fix free space cache leak The free space caching code was recently reworked to cache all the pages it needed instead of using find_get_page everywhere. One loop was missed though, so it ended up leaking pages. This fixes it to use our page array instead of find_get_page. Signed-off-by: Chris Mason <chris.mason@oracle.com> 18 April 2011, 12:55:34 UTC
24ecfbe Christoph Hellwig 18 April 2011, 09:41:33 UTC block: add blk_run_queue_async Instead of overloading __blk_run_queue to force an offload to kblockd add a new blk_run_queue_async helper to do it explicitly. I've kept the blk_queue_stopped check for now, but I suspect it's not needed as the check we do when the workqueue items runs should be enough. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 18 April 2011, 09:41:33 UTC
4521cc4 Jens Axboe 18 April 2011, 09:36:39 UTC block: blk_delay_queue() should use kblockd workqueue Reported-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 18 April 2011, 09:36:39 UTC
2dd93c4 Axel Lin 17 April 2011, 02:02:58 UTC RTC: rtc-omap: Fix a leak of the IRQ during init failure In omap_rtc_probe error path, free_irq() was using NULL rather than the driver data as the data pointer so free_irq() wouldn't have matched. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: "George G. Davis" <gdavis@mvista.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: rtc-linux@googlegroups.com Link: http://lkml.kernel.org/r/%3C1303005778.2889.2.camel%40phoenix%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 18 April 2011, 08:39:38 UTC
1791f88 Richard Cochran 30 March 2011, 13:24:21 UTC posix clocks: Replace mutex with reader/writer semaphore A dynamic posix clock is protected from asynchronous removal by a mutex. However, using a mutex has the unwanted effect that a long running clock operation in one process will unnecessarily block other processes. For example, one process might call read() to get an external time stamp coming in at one pulse per second. A second process calling clock_gettime would have to wait for almost a whole second. This patch fixes the issue by using a reader/writer semaphore instead of a mutex. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Cc: John Stultz <john.stultz@linaro.org> Link: http://lkml.kernel.org/r/%3C20110330132421.GA31771%40riccoc20.at.omicron.at%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 18 April 2011, 08:39:38 UTC
c3b328a NeilBrown 18 April 2011, 08:25:43 UTC md: fix up raid1/raid10 unplugging. We just need to make sure that an unplug event wakes up the md thread, which is exactly what mddev_check_plugged does. Also remove some plug-related code that is no longer needed. Signed-off-by: NeilBrown <neilb@suse.de> 18 April 2011, 08:25:43 UTC
7c13edc NeilBrown 18 April 2011, 08:25:43 UTC md: incorporate new plugging into raid5. In raid5 plugging is used for 2 things: 1/ collecting writes that require a bitmap update 2/ collecting writes in the hope that we can create full stripes - or at least more-full. We now release these different sets of stripes when plug_cnt is zero. Also in make_request, we call mddev_check_plug to hopefully increase plug_cnt, and wake up the thread at the end if plugging wasn't achieved for some reason. Signed-off-by: NeilBrown <neilb@suse.de> 18 April 2011, 08:25:43 UTC
97658cd NeilBrown 18 April 2011, 08:25:42 UTC md: provide generic support for handling unplug callbacks. When an md device adds a request to a queue, it can call mddev_check_plugged. If this succeeds then we know that the md thread will be woken up shortly, and ->plug_cnt will be non-zero until then, so some processing can be delayed. If it fails, then no unplug callback is expected and the make_request function needs to do whatever is required to make the request happen. Signed-off-by: NeilBrown <neilb@suse.de> 18 April 2011, 08:25:42 UTC
482c083 NeilBrown 18 April 2011, 08:25:42 UTC md - remove old plugging code. md has some plugging infrastructure for RAID5 to use because the normal plugging infrastructure required a 'request_queue', and when called from dm, RAID5 doesn't have one of those available. This relied on the ->unplug_fn callback which doesn't exist any more. So remove all of that code, both in md and raid5. Subsequent patches with restore the plugging functionality. Signed-off-by: NeilBrown <neilb@suse.de> 18 April 2011, 08:25:42 UTC
af1db72 NeilBrown 18 April 2011, 08:25:41 UTC md/dm - remove remains of plug_fn callback. Now that unplugging is done differently, the unplug_fn callback is never called, so it can be completely discarded. Signed-off-by: NeilBrown <neilb@suse.de> 18 April 2011, 08:25:41 UTC
e1dfa0a NeilBrown 18 April 2011, 08:25:41 UTC md: use new plugging interface for RAID IO. md/raid submits a lot of IO from the various raid threads. So adding start/finish plug calls to those so that some plugging happens. Signed-off-by: NeilBrown <neilb@suse.de> 18 April 2011, 08:25:41 UTC
99e2259 Jens Axboe 18 April 2011, 07:59:55 UTC block: drop queue lock before calling __blk_run_queue() for kblockd punt If we know we are going to punt to kblockd, we can drop the queue lock before calling into __blk_run_queue() since it only does a safe bit test and a workqueue call. Since kblockd needs to grab this very lock as one of the first things it does, it's a good optimization to drop the lock before waking kblockd. Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 18 April 2011, 07:59:55 UTC
b4cb290 Jens Axboe 18 April 2011, 07:54:05 UTC Revert "block: add callback function for unplug notification" MD can't use this since it really requires us to be able to keep more than a single piece of state for the unplug. Commit 048c9374 added the required support for MD, so get rid of this now unused code. This reverts commit f75664570d8b75469cc468f23c2b27220984983b. Conflicts: block/blk-core.c Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 18 April 2011, 07:54:05 UTC
048c937 NeilBrown 18 April 2011, 07:52:22 UTC block: Enhance new plugging support to support general callbacks md/raid requires an unplug callback, but as it does not uses requests the current code cannot provide one. So allow arbitrary callbacks to be attached to the blk_plug. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 18 April 2011, 07:52:22 UTC
0553c89 Krishna Kumar 14 April 2011, 06:07:04 UTC ip6_pol_route panic: Do not allow VLAN on loopback Several tests in the ipv6 routing code check IFF_LOOPBACK, and allowing stacking such as VLAN'ing on top of loopback results in a netdevice which reports IFF_LOOPBACK but really isn't the loopback device. Instead of spamming the ipv6 routing code with even more special tests, simply disallow VLAN over loopback. The result of this patch is: # modprobe 8021q # vconfig add lo 43 ERROR: trying to add VLAN #43 to IF -:lo:- error: Operation not supported Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net> 18 April 2011, 06:27:16 UTC
7b84b29 Benjamin Herrenschmidt 18 April 2011, 05:46:35 UTC powerpc/powermac: Build fix with SMP and CPU hotplug Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 18 April 2011, 05:46:35 UTC
86c74ab Eric B Munson 15 April 2011, 08:12:30 UTC powerpc/perf_event: Skip updating kernel counters if register value shrinks Because of speculative event roll back, it is possible for some event coutners to decrease between reads on POWER7. This causes a problem with the way that counters are updated. Delta calues are calculated in a 64 bit value and the top 32 bits are masked. If the register value has decreased, this leaves us with a very large positive value added to the kernel counters. This patch protects against this by skipping the update if the delta would be negative. This can lead to a lack of precision in the coutner values, but from my testing the value is typcially fewer than 10 samples at a time. Signed-off-by: Eric B Munson <emunson@mgebm.net> Cc: stable@kernel.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 18 April 2011, 03:08:23 UTC
09597cf Stefan Roese 14 April 2011, 23:49:53 UTC powerpc: Don't write protect kernel text with CONFIG_DYNAMIC_FTRACE enabled This problem was noticed on an MPC855T platform. Ftrace did oops when trying to write to the kernel text segment. Many thanks to Joakim for finding the root cause of this problem. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Joakim Tjernlund <joakim.tjernlund@transmode.se> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 18 April 2011, 03:08:21 UTC
84ffae5 Anton Blanchard 07 April 2011, 21:44:21 UTC powerpc: Fix oops if scan_dispatch_log is called too early We currently enable interrupts before the dispatch log for the boot cpu is setup. If a timer interrupt comes in early enough we oops in scan_dispatch_log: Unable to handle kernel paging request for data at address 0x00000010 ... .scan_dispatch_log+0xb0/0x170 .account_system_vtime+0xa0/0x220 .irq_enter+0x88/0xc0 .do_IRQ+0x48/0x230 The patch below adds a check to scan_dispatch_log to ensure the dispatch log has been allocated. Signed-off-by: Anton Blanchard <anton@samba.org> Cc: <stable@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 18 April 2011, 03:08:19 UTC
127493d Nishanth Aravamudan 13 April 2011, 19:45:59 UTC powerpc/pseries: Use a kmem cache for DTL buffers PAPR specifies that DTL buffers can not cross AMS environments (aka CMO in the PAPR) and can not cross a memory entitlement granule boundary (4k). This is found in section 14.11.3.2 H_REGISTER_VPA of the PAPR. kmalloc does not guarantee an alignment of the allocation, though, beyond 8 bytes (at least in my understanding). Create a special kmem cache for DTL buffers with the alignment requirement. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 18 April 2011, 03:08:08 UTC
7c7a81b Paul Gortmaker 13 April 2011, 06:30:08 UTC powerpc/kexec: Fix regression causing compile failure on UP Recent commit b987812b3fcaf70fdf0037589e5d2f5f2453e6ce caused a compile failure on UP because a considerably large block of the file was included within CONFIG_SMP, hence making a stub function not exposed on UP builds when it needed to be. Relocate the stub to the #else /* ! CONFIG_SMP */ section and also annotate the relevant else/endif so that nobody else falls into the same trap I did. Reported-by: Michael Guntsche <mike@it-loops.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 18 April 2011, 03:06:45 UTC
8f3dda7 Benjamin Herrenschmidt 18 April 2011, 02:09:37 UTC Merge remote branch 'kumar/merge' into merge 18 April 2011, 02:09:37 UTC
70dda99 Yaniv Rosner 18 April 2011, 00:50:01 UTC bnx2x: Fix port identification problem This patch fixes port identification on optic devices when there's no link on the port. Signed-off-by: Yaniv Rosner <yanivr@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> 18 April 2011, 00:50:01 UTC
c8a75b3 Francois Romieu 18 April 2011, 00:46:40 UTC r8169: add Realtek as maintainer. Per Hayes's request. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net> 18 April 2011, 00:46:40 UTC
a1b49cb Linus Torvalds 18 April 2011, 00:37:02 UTC Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-algo-bit: Call pre/post_xfer for bit_test i2c: Improve deprecation warnings 18 April 2011, 00:37:02 UTC
59c87de Linus Torvalds 18 April 2011, 00:36:45 UTC Merge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: SAMSUNG: Fix warning 's3c_pm_show_resume_irqs' defined but not used ARM: SAMSUNG: Fix build failure in PM CRC check code ARM: S5P: Remove unused s3c_pm_check_resume_pin 18 April 2011, 00:36:45 UTC
a78eda5 Richard Henderson 17 April 2011, 20:05:26 UTC alpha: Fix uninitialized value in read_persistent_clock. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 17 April 2011, 21:41:30 UTC
6181318 Richard Henderson 17 April 2011, 20:05:25 UTC alpha: Fix RTC interrupt setup. Following commit 091738a266fc ("genirq: Remove real old transition functions") we removed an automatic conversion of no_irq_chip to dummy_irq_chip. This change needs to be propagated back into the alpha backend. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 17 April 2011, 21:41:30 UTC
280da4e Richard Henderson 17 April 2011, 20:05:24 UTC alpha: Remove set but unused variables. This is a new warning in gcc 4.6. Several of these variables are used within #if 0 code, which probably ought to be removed. Most of the changes are legitimate cleanups. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 17 April 2011, 21:41:30 UTC
90fd30c Richard Henderson 17 April 2011, 20:05:23 UTC alpha: Don't force -Werror. There are outstanding gcc 4.6 warnings that need to be cleaned up in the subdirectory. No sense forcing the issue immediately. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 17 April 2011, 21:41:30 UTC
fff3e5a Milton Miller 14 April 2011, 15:30:08 UTC fs: synchronize_rcu when unregister_filesystem success not failure While checking unregister_filesystem for saftey vs extra calls for "ext4: register ext2 and ext3 alias after ext4" I realized that the synchronize_rcu() was called on the error path but not on the success path. Cc: stable (2.6.38) Signed-off-by: Milton Miller <miltonm@bga.com> [ This probably won't really make a difference since commit d863b50ab013 ("vfs: call rcu_barrier after ->kill_sb()"), but it's the right thing to do. - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 17 April 2011, 17:42:01 UTC
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