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4cbe5a5 Linux 3.6-rc4 01 September 2012, 17:39:58 UTC
cee5848 time: Move ktime_t overflow checking into timespec_valid_strict Andreas Bombe reported that the added ktime_t overflow checking added to timespec_valid in commit 4e8b14526ca7 ("time: Improve sanity checking of timekeeping inputs") was causing problems with X.org because it caused timeouts larger then KTIME_T to be invalid. Previously, these large timeouts would be clamped to KTIME_MAX and would never expire, which is valid. This patch splits the ktime_t overflow checking into a new timespec_valid_strict function, and converts the timekeeping codes internal checking to use this more strict function. Reported-and-tested-by: Andreas Bombe <aeb@debian.org> Cc: Zhouping Liu <zliu@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 01 September 2012, 17:24:48 UTC
7a611e6 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM bugfixes from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: fix KVM_GET_MSR for PV EOI kvm: Fix nonsense handling of compat ioctl 01 September 2012, 00:02:58 UTC
a16d9d2 Merge tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6 Pull PARISC fixes from James Bottomley: "This is a set of two bug fixes. One is the ATOMIC problem which is now causing a compile failure in certain situations. The other is mishandling of PER_LINUX32 which may also cause user visible effects. Signed-off-by: James Bottomley <JBottomley@Parallels.com>" * tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6: [PARISC] fix personality flag check in copy_thread() [PARISC] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts 01 September 2012, 00:02:20 UTC
a492246 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: "A couple of s390 bug fixes for 3.5-rc4" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/32: Don't clobber personality flags on exec s390/smp: add missing smp_store_status() for !SMP s390/dasd: fix ioctl return value s390: Always use "long" for ssize_t to match size_t 01 September 2012, 00:01:31 UTC
155e36d Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "A bunch of scattered fixes ati/intel/nouveau, couple of core ones, nothing too shocking or different." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm: Add EDID_QUIRK_FORCE_REDUCED_BLANKING for ASUS VW222S gma500: Consider CRTC initially active. drm/radeon: fix dig encoder selection on DCE61 drm/radeon: fix double free in radeon_gpu_reset drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740 drm/radeon: rework panel mode setup drm/radeon/atom: powergating fixes for DCE6 drm/radeon/atom: rework DIG modesetting on DCE3+ drm/radeon: don't disable plls that are in use by other crtcs drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700 drm/radeon: initialize tracked CS state drm/radeon: fix reading CB_COLORn_MASK from the CS drm/nvc0/copy: check PUNITS to determine which copy engines are disabled i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard drm/i915: Use the correct size of the GTT for placing the per-process entries drm: Check for invalid cursor flags drm: Initialize object type when using DRM_MODE() macro drm/i915: fix color order for BGR formats on IVB drm/i915: fix wrong order of parameters in port checking functions 30 August 2012, 16:11:33 UTC
768fd07 s390/32: Don't clobber personality flags on exec In native 32 bit mode the personality flags were not correctly inherited. This is the s390 version of 59e4c3a2 "powerpc/32: Don't clobber personality flags on exec". Reported-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> 30 August 2012, 14:28:07 UTC
6f33814 drm: Add EDID_QUIRK_FORCE_REDUCED_BLANKING for ASUS VW222S Connecting an ASUS VW222S [1] over VGA a garbled screen is shown with vertical stripes in the top half. In commit bc42aabc [2] commit bc42aabc6a01b92b0f961d65671564e0e1cd7592 Author: Adam Jackson <ajax@redhat.com> Date: Wed May 23 16:26:54 2012 -0400 drm/edid/quirks: ViewSonic VA2026w Adam Jackson added the quirk `EDID_QUIRK_FORCE_REDUCED_BLANKING` which is also needed for this ASUS monitor. All log files and output from `xrandr` is included in the referenced Bugzilla report #17629. Please note that this monitor only has a VGA (D-Sub) connector [1]. [1] http://www.asus.com/Display/LCD_Monitors/VW222S/ [2] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=bc42aabc6a01b92b0f961d65671564e0e1cd7592 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=17629 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Cc: <dri-devel@lists.freedesktop.org> Cc: Adam Jackson <ajax@redhat.com> Cc: Ian Pilcher <arequipeno@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com> 30 August 2012, 04:14:12 UTC
c1b5112 Merge branch 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes Alex writes: Highlights: - fix a gart regression on older IGP chips - more MSAA fixes - fix a double free in gpu reset code - modesetting fixes - trinity dig encoder fix. * 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: fix dig encoder selection on DCE61 drm/radeon: fix double free in radeon_gpu_reset drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740 drm/radeon: rework panel mode setup drm/radeon/atom: powergating fixes for DCE6 drm/radeon/atom: rework DIG modesetting on DCE3+ drm/radeon: don't disable plls that are in use by other crtcs drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700 drm/radeon: initialize tracked CS state drm/radeon: fix reading CB_COLORn_MASK from the CS 30 August 2012, 00:35:34 UTC
4a68a74 gma500: Consider CRTC initially active. [this one ideally should make 3.6 - it fixes the very annoying mode setting bug] This causes the pipe to be forced off prior to initial mode set, which roughly mirrors the behavior of the i915 driver. It fixes initial mode setting on my Intel DN2800MT (Cedarview) board. Without it, mode setting triggers an out-of-range error from the monitor for most modes, but only on initial configuration (i.e. they can be configured successfully from userspace after that). Signed-off-by: Forest Bond <forest.bond@rapidrollout.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com> 30 August 2012, 00:33:53 UTC
41fa543 drm/radeon: fix dig encoder selection on DCE61 Was using the DCE41 code which was wrong. Fixes blank displays on a number of Trinity systems. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org 29 August 2012, 23:57:34 UTC
318e151 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "I've split out the big send/receive update from my last pull request and now have just the fixes in my for-linus branch. The send/recv branch will wander over to linux-next shortly though. The largest patches in this pull are Josef's patches to fix DIO locking problems and his patch to fix a crash during balance. They are both well tested. The rest are smaller fixes that we've had queued. The last rc came out while I was hacking new and exciting ways to recover from a misplaced rm -rf on my dev box, so these missed rc3." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (25 commits) Btrfs: fix that repair code is spuriously executed for transid failures Btrfs: fix ordered extent leak when failing to start a transaction Btrfs: fix a dio write regression Btrfs: fix deadlock with freeze and sync V2 Btrfs: revert checksum error statistic which can cause a BUG() Btrfs: remove superblock writing after fatal error Btrfs: allow delayed refs to be merged Btrfs: fix enospc problems when deleting a subvol Btrfs: fix wrong mtime and ctime when creating snapshots Btrfs: fix race in run_clustered_refs Btrfs: don't run __tree_mod_log_free_eb on leaves Btrfs: increase the size of the free space cache Btrfs: barrier before waitqueue_active Btrfs: fix deadlock in wait_for_more_refs btrfs: fix second lock in btrfs_delete_delayed_items() Btrfs: don't allocate a seperate csums array for direct reads Btrfs: do not strdup non existent strings Btrfs: do not use missing devices when showing devname Btrfs: fix that error value is changed by mistake Btrfs: lock extents as we map them in DIO ... 29 August 2012, 18:36:22 UTC
a7ccbcf Merge git://www.linux-watchdog.org/linux-watchdog Pull watchdog fixes from Wim Van Sebroeck: "This will fix a warning for watchdog-test.c and it will remove a duplicate include of delay.h" * git://www.linux-watchdog.org/linux-watchdog: watchdog: da9052: Remove duplicate inclusion of delay.h watchdog: fix watchdog-test.c build warning 29 August 2012, 18:35:00 UTC
51cd8e6 mm, slab: lock the correct nodelist after reenabling irqs cache_grow() can reenable irqs so the cpu (and node) can change, so ensure that we take list_lock on the correct nodelist. This fixes an issue with commit 072bb0aa5e06 ("mm: sl[au]b: add knowledge of PFMEMALLOC reserve pages") where list_lock for the wrong node was taken after growing the cache. Reported-and-tested-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 29 August 2012, 18:32:21 UTC
f54b350 drm/radeon: fix double free in radeon_gpu_reset radeon_ring_restore is freeing the memory for the saved ring data. We need to remember that, otherwise we try to restore the ring data again on the next try. Additional to that it shouldn't try the reset infinitely if we have saved ring data. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> 29 August 2012, 16:11:01 UTC
4a2b666 drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740 It seems some of those IGP dislike non dma32 page despite what documentation says. Fix regression since we allowed non dma32 pages. It seems it only affect some revision of those IGP chips as we don't know which one just force dma32 for all of them. https://bugzilla.redhat.com/show_bug.cgi?id=785375 Signed-off-by: Jerome Glisse <jglisse@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 29 August 2012, 16:11:01 UTC
0ceb996 drm/radeon: rework panel mode setup Adjust the panel mode setup to match the behavior of the vbios. Rather than checking for specific bridge chip ids, just check the eDP configuration register. This saves extra aux transactions and works across DP bridge chips without requiring additional per chip id checking. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 29 August 2012, 16:11:01 UTC
c205b23 drm/radeon/atom: powergating fixes for DCE6 Power gating is per crtc pair, but the powergating registers should be called individually. The hw handles power up/down properly. The pair is powered up if either crtc in the pair is powered up and the pair is not powered down until both crtcs in the pair are powered down. This simplifies programming and should save additional power as the previous code never actually power gated the crtc pair. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org 29 August 2012, 16:11:01 UTC
8d1af57 drm/radeon/atom: rework DIG modesetting on DCE3+ The ordering is important and the current drm code wasn't cutting it for modern DIG encoders. We need to have information about crtc before setting up the encoders so I've shifted the ordering a bit. Probably we'll need a full rework akin to danvet's recent intel patchs. This patch fixes numerous issues with DP bridge chips and makes link training much more reliable. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org 29 August 2012, 16:11:01 UTC
4e58591 drm/radeon: don't disable plls that are in use by other crtcs Some plls are shared for DP. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> 29 August 2012, 16:11:00 UTC
523885d drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700 Checking of the second colorbuffer was skipped on r700, because CB_TARGET_MASK was 0xf. With r600, CB_TARGET_MASK is changed to 0xff, so we must set the number of samples of the second colorbuffer to 1 in order to pass the CS checker. The DRM version is bumped, because RESOLVE_BOX is always rejected without this fix on r600. Signed-off-by: Marek Olšák <maraeo@gmail.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 29 August 2012, 16:11:00 UTC
3b5ef59 drm/radeon: initialize tracked CS state This should help catch uninitialized registers and reject commands because of that. Signed-off-by: Marek Olšák <maraeo@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 29 August 2012, 16:11:00 UTC
305a3d2 drm/radeon: fix reading CB_COLORn_MASK from the CS Signed-off-by: Marek Olšák <maraeo@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 29 August 2012, 16:11:00 UTC
3e5531c watchdog: da9052: Remove duplicate inclusion of delay.h delay.h header file was included twice. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 29 August 2012, 15:13:06 UTC
4b1c2f4 watchdog: fix watchdog-test.c build warning Fix compiler warning by making the function static: Documentation/watchdog/src/watchdog-test.c:34:6: warning: no previous prototype for 'term' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 29 August 2012, 15:12:58 UTC
84f720e Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes Daniel writes: "Just a few smaller things: - Fix up a pipe vs. plane confusion from a refactoring, fixes a regression from 3.1 (Anhua Xu). - Fix ivb sprite pixel formats (Vijay). - Fixup ppgtt pde placement for machines where the Bios artifically limits the availbale gtt space in the name of ... product differentiation (Chris). This fixes an oops. - Yet another no_lvds quirk entry." * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard drm/i915: Use the correct size of the GTT for placing the per-process entries drm/i915: fix color order for BGR formats on IVB drm/i915: fix wrong order of parameters in port checking functions 29 August 2012, 10:09:23 UTC
f08859a Merge branch 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes Ben says its just a single fix to avoid the wrong pcopy units being used. * 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nvc0/copy: check PUNITS to determine which copy engines are disabled 29 August 2012, 10:05:40 UTC
14f0458 drm/nvc0/copy: check PUNITS to determine which copy engines are disabled On some Fermi chipsets (NVCE particularly) PCOPY1 doesn't exist. And if what I've seen on Kepler is true of Fermi too, chipsets of the same type can have different PCOPY units available. This should fix a v3.5 regression reported by a number of people effecting suspend/resume on NVC8/NVCE chipsets. Cc: stable@vger.kernel.org [3.5] Signed-off-by: Ben Skeggs <bskeggs@redhat.com> 29 August 2012, 03:21:41 UTC
256dd1b Btrfs: fix that repair code is spuriously executed for transid failures If verify_parent_transid() fails for all mirrors, the current code calls repair_io_failure() anyway which means: - that the disk block is rewritten without repairing anything and - that a kernel log message is printed which misleadingly claims that a read error was corrected. This is an example: parent transid verify failed on 615015833600 wanted 110423 found 110424 parent transid verify failed on 615015833600 wanted 110423 found 110424 btrfs read error corrected: ino 1 off 615015833600 (dev /dev/...) It is wrong to ignore the results from verify_parent_transid() and to call repair_eb_io_failure() when the verification of the transids failed. This commit fixes the issue. Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Chris Mason <chris.mason@oracle.com> 28 August 2012, 20:53:43 UTC
d280e5b Btrfs: fix ordered extent leak when failing to start a transaction We cannot just return error before freeing ordered extent and releasing reserved space when we fail to start a transacion. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com> 28 August 2012, 20:53:42 UTC
24c03fa Btrfs: fix a dio write regression This bug is introduced by commit 3b8bde746f6f9bd36a9f05f5f3b6e334318176a9 (Btrfs: lock extents as we map them in DIO). In dio write, we should unlock the section which we didn't do IO on in case that we fall back to buffered write. But we need to not only unlock the section but also cleanup reserved space for the section. This bug was found while running xfstests 133, with this 133 no longer complains. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com> 28 August 2012, 20:53:41 UTC
bd7de2c Btrfs: fix deadlock with freeze and sync V2 We can deadlock with freeze right now because we unconditionally start a transaction in our ->sync_fs() call. To fix this just check and see if we have a running transaction to commit. This saves us from the deadlock because at this point we'll have the umount sem for the sb so we're safe from freezes coming in after we've done our check. With this patch the freeze xfstests no longer deadlocks. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@oracle.com> 28 August 2012, 20:53:40 UTC
5ee0844 Btrfs: revert checksum error statistic which can cause a BUG() Commit 442a4f6308e694e0fa6025708bd5e4e424bbf51c added btrfs device statistic counters for detected IO and checksum errors to Linux 3.5. The statistic part that counts checksum errors in end_bio_extent_readpage() can cause a BUG() in a subfunction: "kernel BUG at fs/btrfs/volumes.c:3762!" That part is reverted with the current patch. However, the counting of checksum errors in the scrub context remains active, and the counting of detected IO errors (read, write or flush errors) in all contexts remains active. Cc: stable <stable@vger.kernel.org> # 3.5 Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Chris Mason <chris.mason@oracle.com> 28 August 2012, 20:53:39 UTC
68ce968 Btrfs: remove superblock writing after fatal error With commit acce952b0, btrfs was changed to flag the filesystem with BTRFS_SUPER_FLAG_ERROR and switch to read-only mode after a fatal error happened like a write I/O errors of all mirrors. In such situations, on unmount, the superblock is written in btrfs_error_commit_super(). This is done with the intention to be able to evaluate the error flag on the next mount. A warning is printed in this case during the next mount and the log tree is ignored. The issue is that it is possible that the superblock points to a root that was not written (due to write I/O errors). The result is that the filesystem cannot be mounted. btrfsck also does not start and all the other btrfs-progs tools fail to start as well. However, mount -o recovery is working well and does the right things to recover the filesystem (i.e., don't use the log root, clear the free space cache and use the next mountable root that is stored in the root backup array). This patch removes the writing of the superblock when BTRFS_SUPER_FLAG_ERROR is set, and removes the handling of the error flag in the mount function. These lines can be used to reproduce the issue (using /dev/sdm): SCRATCH_DEV=/dev/sdm SCRATCH_MNT=/mnt echo 0 25165824 linear $SCRATCH_DEV 0 | dmsetup create foo ls -alLF /dev/mapper/foo mkfs.btrfs /dev/mapper/foo mount /dev/mapper/foo $SCRATCH_MNT echo bar > $SCRATCH_MNT/foo sync echo 0 25165824 error | dmsetup reload foo dmsetup resume foo ls -alF $SCRATCH_MNT touch $SCRATCH_MNT/1 ls -alF $SCRATCH_MNT sleep 35 echo 0 25165824 linear $SCRATCH_DEV 0 | dmsetup reload foo dmsetup resume foo sleep 1 umount $SCRATCH_MNT btrfsck /dev/mapper/foo dmsetup remove foo Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net> 28 August 2012, 20:53:38 UTC
ae1e206 Btrfs: allow delayed refs to be merged Daniel Blueman reported a bug with fio+balance on a ramdisk setup. Basically what happens is the balance relocates a tree block which will drop the implicit refs for all of its children and adds a full backref. Once the block is relocated we have to add the implicit refs back, so when we cow the block again we add the implicit refs for its children back. The problem comes when the original drop ref doesn't get run before we add the implicit refs back. The delayed ref stuff will specifically prefer ADD operations over DROP to keep us from freeing up an extent that will have references to it, so we try to add the implicit ref before it is actually removed and we panic. This worked fine before because the add would have just canceled the drop out and we would have been fine. But the backref walking work needs to be able to freeze the delayed ref stuff in time so we have this ever increasing sequence number that gets attached to all new delayed ref updates which makes us not merge refs and we run into this issue. So to fix this we need to merge delayed refs. So everytime we run a clustered ref we need to try and merge all of its delayed refs. The backref walking stuff locks the delayed ref head before processing, so if we have it locked we are safe to merge any refs inside of the sequence number. If there is no sequence number we can merge all refs. Doing this not only fixes our bug but keeps the delayed ref code from adding and removing useless refs and batching together multiple refs into one search instead of one search per delayed ref, which will really help our commit times. I ran this with Daniels test and 276 and I haven't seen any problems. Thanks, Reported-by: Daniel J Blueman <daniel@quora.org> Signed-off-by: Josef Bacik <jbacik@fusionio.com> 28 August 2012, 20:53:38 UTC
5a24e84 Btrfs: fix enospc problems when deleting a subvol Subvol delete is a special kind of awful where we use the global reserve to cover the ENOSPC requirements. The problem is once we're done removing everything we do a btrfs_update_inode(), which by default will try to do the delayed update stuff which will use it's own reserve. There will be no space in this reserve and we'll return ENOSPC. So instead use btrfs_update_inode_fallback() which will just fallback to updating the inode item in the case of enospc. This is fine because the global reserve covers the space requirements for this. With this patch I can now delete a subvol on a problem image Dave Sterba sent me. Thanks, Reported-by: David Sterba <dave@jikos.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com> 28 August 2012, 20:53:37 UTC
c0f62de Btrfs: fix wrong mtime and ctime when creating snapshots When we created a new snapshot, the mtime and ctime of its parent directory were not updated. Fix it. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com> 28 August 2012, 20:53:36 UTC
22cd2e7 Btrfs: fix race in run_clustered_refs With commit commit d1270cd91f308c9d22b2804720c36ccd32dbc35e Author: Arne Jansen <sensille@gmx.net> Date: Tue Sep 13 15:16:43 2011 +0200 Btrfs: put back delayed refs that are too new I added a window where the delayed_ref's head->ref_mod code can diverge from the sum of the remaining refs, because we release the head->mutex in the middle. This leads to btrfs_lookup_extent_info returning wrong numbers. This patch fixes this by adjusting the head's ref_mod with each delayed ref we run. Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Chris Mason <chris.mason@fusionio.com> 28 August 2012, 20:53:35 UTC
b12a3b1 Btrfs: don't run __tree_mod_log_free_eb on leaves When we split a leaf, we may end up inserting a new root on top of that leaf. The reflog code was incorrectly assuming the old root was always a node. This makes sure we skip over leaves. Signed-off-by: Chris Mason <chris.mason@fusionio.com> 28 August 2012, 20:53:34 UTC
6fc823b Btrfs: increase the size of the free space cache Arne was complaining about the space cache having mismatching generation numbers when debugging a deadlock. This is because we can run out of space in our preallocated range for our space cache if you have a pretty fragmented amount of space in your pinned space. So just increase the amount of space we preallocate for space cache so we can be sure to have enough space. This will only really affect data ranges since their the only chunks that end up larger than 256MB. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com> 28 August 2012, 20:53:34 UTC
66657b3 Btrfs: barrier before waitqueue_active We need a barrir before calling waitqueue_active otherwise we will miss wakeups. So in places that do atomic_dec(); then atomic_read() use atomic_dec_return() which imply a memory barrier (see memory-barriers.txt) and then add an explicit memory barrier everywhere else that need them. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> 28 August 2012, 20:53:33 UTC
1fa11e2 Btrfs: fix deadlock in wait_for_more_refs Commit a168650c introduced a waiting mechanism to prevent busy waiting in btrfs_run_delayed_refs. This can deadlock with btrfs_run_ordered_operations, where a tree_mod_seq is held while waiting for the io to complete, while the end_io calls btrfs_run_delayed_refs. This whole mechanism is unnecessary. If not enough runnable refs are available to satisfy count, just return as count is more like a guideline than a strict requirement. In case we have to run all refs, commit transaction makes sure that no other threads are working in the transaction anymore, so we just assert here that no refs are blocked. Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Chris Mason <chris.mason@fusionio.com> 28 August 2012, 20:53:32 UTC
6209526 btrfs: fix second lock in btrfs_delete_delayed_items() Fix a real bug caught by coccinelle. fs/btrfs/delayed-inode.c:1013:1-11: second lock on line 1013 Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> 28 August 2012, 20:53:31 UTC
c329861 Btrfs: don't allocate a seperate csums array for direct reads We've been allocating a big array for csums instead of storing them in the io_tree like we do for buffered reads because previously we were locking the entire range, so we didn't have an extent state for each sector of the range. But now that we do the range locking as we map the buffers we can limit the mapping lenght to sectorsize and use the private part of the io_tree for our csums. This allows us to avoid an extra memory allocation for direct reads which could incur latency. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> 28 August 2012, 20:53:30 UTC
99f5944 Btrfs: do not strdup non existent strings When we close devices we add back empty devices for some reason that escapes me. In the case of a missing dev we don't allocate an rcu_string for it's name, so check to see if the device has a name and if it doesn't don't bother strdup()'ing it. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> 28 August 2012, 20:53:29 UTC
aa9ddcd Btrfs: do not use missing devices when showing devname If you do the following mkfs.btrfs /dev/sdb /dev/sdc rmmod btrfs dd if=/dev/zero of=/dev/sdb bs=1M count=1 mount -o degraded /dev/sdc /mnt/btrfs-test the box will panic trying to deref the name for the missing dev since it is the lower numbered devid. So fix show_devname to not use missing devices. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> 28 August 2012, 20:53:29 UTC
3627bf4 Btrfs: fix that error value is changed by mistake In iterate_inodes_from_logical() the error result from extent_from_logical() is patched by mistake. Typically ENOENT is patched to EINVAL because (-ENOENT & BTRFS_EXTENT_FLAG_TREE_BLOCK) evaluates to true. Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> 28 August 2012, 20:53:28 UTC
eb838e7 Btrfs: lock extents as we map them in DIO A deadlock in xfstests 113 was uncovered by commit d187663ef24cd3d033f0cbf2867e70b36a3a90b8 This is because we would not return EIOCBQUEUED for short AIO reads, instead we'd wait for the DIO to complete and then return the amount of data we transferred, which would allow our stuff to unlock the remaning amount. But with this change this no longer happens, so if we have a short AIO read (for example if we try to read past EOF), we could leave the section from EOF to the end of where we tried to read locked. Fixing this is tricky since there is no clear way to know exactly how much data DIO truly submitted for IO, so to make this less hard on ourselves and less combersome we need to lock the extents as we try to map them, and then we unlock any areas we didn't actually map. This makes us completely safe from deadlocks and reliance on a particular behavior of the DIO code. This also lays the groundwork for allowing us to use the normal csum storage method for reads which means we can remove an allocation. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> 28 August 2012, 20:53:27 UTC
dadd110 Btrfs: fix some endian bugs handling the root times "trans->transid" is cpu endian but we want to store the data as little endian. "item->ctime.nsec" is only 32 bits, not 64. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> 28 August 2012, 20:53:26 UTC
55e591f Btrfs: unlock on error in btrfs_delalloc_reserve_metadata() We should release this mutex before returning the error code. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> 28 August 2012, 20:53:25 UTC
57a5a88 Btrfs: checking for NULL instead of IS_ERR add_qgroup_rb() never returns NULL, only error pointers. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> 28 August 2012, 20:53:25 UTC
5986802 Btrfs: fix some error codes in btrfs_qgroup_inherit() These are returning zero when it should be returning a negative error code. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> 28 August 2012, 20:53:24 UTC
aa2ffd0 Btrfs: fix a misplaced address operator in a condition This should obviously not be "if (&flag)" but "if (flag)". Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> 28 August 2012, 20:53:23 UTC
29a877f s390/smp: add missing smp_store_status() for !SMP Fix this compile error: arch/s390/kernel/machine_kexec.c: In function ‘setup_regs’: arch/s390/kernel/machine_kexec.c:63:3: error: implicit declaration of function ‘smp_store_status’ [-Werror=implicit-function-declaration] Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> 28 August 2012, 08:08:34 UTC
6b79d14 s390/dasd: fix ioctl return value For unimplemented ioctls the dasd driver should return -ENOTTY. Reported-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Acked-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> 28 August 2012, 08:08:31 UTC
1d92128 KVM: x86: fix KVM_GET_MSR for PV EOI KVM_GET_MSR was missing support for PV EOI, which is needed for migration. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> 27 August 2012, 21:03:05 UTC
c182ae4 Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull a hwmon fix from Guenter Roeck: "Fix sensor readings for Asus M5A78L in asus_atk0110 driver." * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (asus_atk0110) Add quirk for Asus M5A78L 26 August 2012, 20:02:51 UTC
760a9a3 kvm: Fix nonsense handling of compat ioctl KVM_SET_SIGNAL_MASK passed a NULL argument leaves the on stack signal sets uninitialized. It then passes them through to kvm_vcpu_ioctl_set_sigmask. We should be passing a NULL in this case not translated garbage. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> 26 August 2012, 18:11:48 UTC
89a897f Merge tag 'for-linus' of git://github.com/prasad-joshi/logfs_upstream Pull LogFS bugfixes from Prasad Joshi: - "logfs: query block device for number of pages to send with bio" This BUG was found when LogFS was used on KVM. The patch fixes the problem by asking for underlaying block device the number of pages to send with each BIO. - "logfs: maintain the ordering of meta-inode destruction" LogFS maintains file system meta-data in special inodes. These inodes are releated to each other, therefore they must be destroyed in a proper order. - "logfs: initialize the number of iovecs in bio" LogFS used to panic when it was created on an encrypted LVM volume. The patch fixes the problem by properly initializing the BIO. Plus a couple more: - logfs: create a pagecache page if it is not present - logfs: destroy the reserved inodes while unmounting * tag 'for-linus' of git://github.com/prasad-joshi/logfs_upstream: logfs: query block device for number of pages to send with bio logfs: maintain the ordering of meta-inode destruction logfs: create a pagecache page if it is not present logfs: initialize the number of iovecs in bio logfs: destroy the reserved inodes while unmounting 26 August 2012, 17:14:11 UTC
9acb172 Merge tag 'fixes-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull arm-soc fixes from Arnd Bergmann: "Bug fixes for various ARM platforms. About half of these are for OMAP and submitted before but did not make it into v3.6-rc2." * tag 'fixes-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) ARM: ux500: don't select LEDS_GPIO for snowball ARM: imx: build i.MX6 functions only when needed ARM: imx: select CPU_FREQ_TABLE when needed ARM: imx: fix ksz9021rn_phy_fixup ARM: imx: build pm-imx5 code only when PM is enabled ARM: omap: allow building omap44xx without SMP ARM: dts: imx51-babbage: fix esdhc cd/wp properties ARM: imx6: spin the cpu until hardware takes it down ARM: ux500: Ensure probing of Audio devices when Device Tree is enabled ARM: ux500: Fix merge error, no matching driver name for 'snd_soc_u8500' ARM i.MX6q: Add virtual 1/3.5 dividers in the LDB clock path ARM: Kirkwood: fix Makefile.boot ARM: Kirkwood: Fix iconnect leds ARM: Orion: Set eth packet size csum offload limit ARM: mv78xx0: fix win_cfg_base prototype ARM: OMAP: dmtimers: Fix locking issue in omap_dm_timer_request*() ARM: mmp: fix potential NULL dereference ARM: OMAP4: Register the OPP table only for 4430 device cpufreq: OMAP: Handle missing frequency table on SMP systems ARM: OMAP4: sleep: Save the complete used register stack frame ... 26 August 2012, 00:33:33 UTC
2675608 Merge tag 'stable/for-linus-3.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull three xen bug-fixes from Konrad Rzeszutek Wilk: - Revert the kexec fix which caused on non-kexec shutdowns a race. - Reuse existing P2M leafs - instead of requiring to allocate a large area of bootup virtual address estate. - Fix a one-off error when adding PFNs for balloon pages. * tag 'stable/for-linus-3.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/setup: Fix one-off error when adding for-balloon PFNs to the P2M. xen/p2m: Reuse existing P2M leafs if they are filled with 1:1 PFNs or INVALID. Revert "xen PVonHVM: move shared_info to MMIO before kexec" 26 August 2012, 00:31:59 UTC
4ae4614 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fixes from Benjamin Herrenschmidt: "I meant to sent that earlier but got swamped with other things, so here are some powerpc fixes for 3.6. A few regression fixes and some bug fixes that I deemed should still make it. There's a FSL update from Kumar with a bunch of defconfig updates along with a few embedded fixes. I also reverted my g5_defconfig update that I merged earlier as it was completely busted, not too sure what happened there, I'll do a new one later." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: Revert "powerpc: Update g5_defconfig" powerpc/perf: Use pmc_overflow() to detect rolled back events powerpc: Fix VMX in interrupt check in POWER7 copy loops powerpc: POWER7 copy_to_user/copy_from_user patch applied twice powerpc: Fix personality handling in ppc64_personality() powerpc/dma-iommu: Fix IOMMU window check powerpc: Remove unnecessary ifdefs powerpc/kgdb: Restore current_thread_info properly powerpc/kgdb: Bail out of KGDB when we've been triggered powerpc/kgdb: Do not set kgdb_single_step on ppc powerpc/mpic_msgr: Add missing includes powerpc: Fix null pointer deref in perf hardware breakpoints powerpc: Fixup whitespace in xmon powerpc: Fix xmon dl command for new printk implementation powerpc/fsl: fix "Failed to mount /dev: No such device" errors powerpc/fsl: update defconfigs booke/wdt: some ioctls do not return values properly powerpc/p4080ds: dts - add usb controller version info and port0 powerpc/85xx: mpc85xx_defconfig - add VIA PATA support for MPC85xxCDS powerpc/fsl-pci: Only scan PCI bus if configured as a host 26 August 2012, 00:30:18 UTC
6ec9776 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm fixes from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86 emulator: use stack size attribute to mask rsp in stack ops KVM: MMU: Fix mmu_shrink() so that it can free mmu pages as intended ppc: e500_tlb memset clears nothing KVM: PPC: Add cache flush on page map KVM: PPC: Book3S HV: Fix incorrect branch in H_CEDE code KVM: x86: update KVM_SAVE_MSRS_BEGIN to correct value 26 August 2012, 00:27:17 UTC
e1d33a5 Merge tag 'for-linus-v3.6-rc4' of git://oss.sgi.com/xfs/xfs Pull xfs bugfixes from Ben Myers: - fix uninitialised variable in xfs_rtbuf_get() - unlock the AGI buffer when looping in xfs_dialloc - check for possible overflow in xfs_ioc_trim * tag 'for-linus-v3.6-rc4' of git://oss.sgi.com/xfs/xfs: xfs: check for possible overflow in xfs_ioc_trim xfs: unlock the AGI buffer when looping in xfs_dialloc xfs: fix uninitialised variable in xfs_rtbuf_get() 25 August 2012, 18:47:06 UTC
2432cbe Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus Pull MIPS fixes from Ralf Baechle: "Random fixes across the MIPS tree. The two hotspots are several bugs in the module loader and the ath79 SOC support; also noteworthy is the restructuring of the code to synchronize CPU timers across CPUs on startup; the old code recently ceased to work due to unrelated changes. All except one of these patches have sat for a significant time in linux-next for testing." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: pci-ar724x: avoid data bus error due to a missing PCIe module MIPS: Malta: Delete duplicate PCI fixup. MIPS: ath79: don't hardcode the unavailability of the DSP ASE MIPS: Synchronize MIPS count one CPU at a time MIPS: BCM63xx: Fix SPI message control register handling for BCM6338/6348. MIPS: Module: Deal with malformed HI16/LO16 relocation sequences. MIPS: Fix race condition in module relocation code. MIPS: Fix memory leak in error path of HI16/LO16 relocation handling. MIPS: MTX-1: Add udelay to mtx1_pci_idsel MIPS: ath79: select HAVE_CLK MIPS: ath79: Use correct IRQ number for the OHCI controller on AR7240 MIPS: ath79: Fix number of GPIO lines for AR724[12] MIPS: Octeon: Fix broken interrupt controller code. 25 August 2012, 18:45:04 UTC
8497ae6 Merge branch 'for-3.6' of git://linux-nfs.org/~bfields/linux Pull nfsd bugfixes from J. Bruce Fields: "Particular thanks to Michael Tokarev, Malahal Naineni, and Jamie Heilman for their testing and debugging help." * 'for-3.6' of git://linux-nfs.org/~bfields/linux: svcrpc: fix svc_xprt_enqueue/svc_recv busy-looping svcrpc: sends on closed socket should stop immediately svcrpc: fix BUG() in svc_tcp_clear_pages nfsd4: fix security flavor of NFSv4.0 callback 25 August 2012, 18:43:41 UTC
a7e546f Merge branch 'for-linus' of git://git.kernel.dk/linux-block Pull block-related fixes from Jens Axboe: - Improvements to the buffered and direct write IO plugging from Fengguang. - Abstract out the mapping of a bio in a request, and use that to provide a blk_bio_map_sg() helper. Useful for mapping just a bio instead of a full request. - Regression fix from Hugh, fixing up a patch that went into the previous release cycle (and marked stable, too) attempting to prevent a loop in __getblk_slow(). - Updates to discard requests, fixing up the sizing and how we align them. Also a change to disallow merging of discard requests, since that doesn't really work properly yet. - A few drbd fixes. - Documentation updates. * 'for-linus' of git://git.kernel.dk/linux-block: block: replace __getblk_slow misfix by grow_dev_page fix drbd: Write all pages of the bitmap after an online resize drbd: Finish requests that completed while IO was frozen drbd: fix drbd wire compatibility for empty flushes Documentation: update tunable options in block/cfq-iosched.txt Documentation: update tunable options in block/cfq-iosched.txt Documentation: update missing index files in block/00-INDEX block: move down direct IO plugging block: remove plugging at buffered write time block: disable discard request merge temporarily bio: Fix potential memory leak in bio_find_or_create_slab() block: Don't use static to define "void *p" in show_partition_start() block: Add blk_bio_map_sg() helper block: Introduce __blk_segment_map_sg() helper fs/block-dev.c:fix performance regression in O_DIRECT writes to md block devices block: split discard into aligned requests block: reorganize rounding of max_discard_sectors 25 August 2012, 18:36:43 UTC
da31ce7 Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev Pull libata fixes from Jeff Garzik: - libata-acpi regression fix - additional or corrected drive quirks for ata_blacklist - Kconfig text tweaking - new PCI IDs - pata_atiixp: quirk for MSI motherboard - export ahci_dev_classify for an ahci_platform driver * tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata: Add a space to " 2GB ATA Flash Disk" DMA blacklist entry [libata] new quirk, lift bridge limits for Buffalo DriveStation Quattro [libata] Kconfig: Elaborate that SFF is meant for legacy and PATA stuff [libata] acpi: call ata_acpi_gtm during ata port init time ata_piix: Add Device IDs for Intel Lynx Point-LP PCH ahci: Add Device IDs for Intel Lynx Point-LP PCH pata_atiixp: override cable detection on MSI E350DM-E33 ahci: un-staticize ahci_dev_classify 25 August 2012, 17:28:19 UTC
d17d794 libata: Add a space to " 2GB ATA Flash Disk" DMA blacklist entry commit d70e551c8e1ecb6f20422f8db6bfe6a0049edcb8, Add " 2GB ATA Flash Disk"/"ADMA428M" to DMA blacklist, should have added a space before 2GB. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> 25 August 2012, 14:16:45 UTC
a51d4ed i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard This board is incorrectly detected as having an LVDS connector, resulting in the VGA output (the only available output on the board) showing the console only in the top-left 1024x768 pixels, and an extra LVDS connector appearing in X. It's a desktop Mini-ITX board using an Atom D525 CPU with an NM10 chipset. I've had this board for about a year, but this is the first time I noticed the issue because I've been running it headless for most of its life. Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca> 24 August 2012, 12:40:09 UTC
2c39bf4 Revert "powerpc: Update g5_defconfig" This reverts commit b1acf1bb544cf28c1f4be0a45620fa899c74b7e9. Something went horribly wrong when I did savedefconfig, not sure what, but what's in there is busted so let's revert it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:55:55 UTC
8133121 powerpc/perf: Use pmc_overflow() to detect rolled back events For certain speculative events on Power7, 'perf stat' reports far higher event count than 'perf record' for the same event. As described in following commit, a performance monitor exception is raised even when the the performance events are rolled back. commit 0837e3242c73566fc1c0196b4ec61779c25ffc93 Author: Anton Blanchard <anton@samba.org> Date: Wed Mar 9 14:38:42 2011 +1100 perf_event_interrupt() records an event only when an overflow occurs. But this check for overflow is a simple 'if (val < 0)'. Because the events are rolled back, this check for overflow fails and the event is not recorded. perf_event_interrupt() later uses pmc_overflow() to detect the overflow and resets the counters and the events are lost completely. To properly detect the overflow of rolled back events, use pmc_overflow() even when recording events. To reproduce: $ cat strcpy.c #include <stdio.h> #include <string.h> main() { char buf[256]; alarm(5); while(1) strcpy(buf, "string1"); } $ perf record -e r20014 ./strcpy $ perf report -n > report.1 $ perf stat -e r20014 > report.2 # Compare report.1 and report.2 Reported-by: Maynard Johnson <mpjohn@us.ibm.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:10 UTC
2fae7cd powerpc: Fix VMX in interrupt check in POWER7 copy loops The enhanced prefetch hint patches corrupt the condition register that was used to check if we are in interrupt. Fix this by using cr1. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:09 UTC
dad477c powerpc: POWER7 copy_to_user/copy_from_user patch applied twice "powerpc: Use enhanced touch instructions in POWER7 copy_to_user/copy_from_user" was applied twice. Remove one. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:09 UTC
7256a5d powerpc: Fix personality handling in ppc64_personality() Directly comparing current->personality against PER_LINUX32 doesn't work in cases when any of the personality flags stored in the top three bytes are used. Directly forcefully setting personality to PER_LINUX32 or PER_LINUX discards any flags stored in the top three bytes Use personality() macro to compare only PER_MASK bytes and make sure that we are setting only the bits that should be set, instead of overwriting the whole value. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:07 UTC
4c374af powerpc/dma-iommu: Fix IOMMU window check Checking for device mask to cover the whole IOMMU table is too strict. IOMMU allocators should handle mask constraint properly for each allocation. The patch enables to use old AirPort Extreme cards on PowerMacs with more than 1GB of memory; without the patch the driver init fails with: b43-pci-bridge 0001:01:01.0: Warning: IOMMU window too big for device mask b43-pci-bridge 0001:01:01.0: mask: 0x3fffffff, table end: 0x80000000 b43-phy0 ERROR: The machine/kernel does not support the required 30-bit DMA mask Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:07 UTC
f0f0c9a powerpc: Remove unnecessary ifdefs Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:06 UTC
5f63040 powerpc/kgdb: Restore current_thread_info properly For powerpc BooKE and e200, singlestep is handled on the critical/dbg exception stack. This causes current_thread_info() to fail for kgdb internal, so previously We work around this issue by copying the thread_info from the kernel stack before calling kgdb_handle_exception, and copying it back afterwards. But actually we don't do this properly. We should backup current_thread_info then restore that when exit. Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:06 UTC
949616c powerpc/kgdb: Bail out of KGDB when we've been triggered We need to skip a breakpoint exception when it occurs after a breakpoint has already been removed. Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:05 UTC
572b411 powerpc/kgdb: Do not set kgdb_single_step on ppc The kgdb_single_step flag has the possibility to indefinitely hang the system on an SMP system. The x86 arch have the same problem, and that problem was fixed by commit 8097551d9ab9b9e3630(kgdb,x86: do not set kgdb_single_step on x86). This patch does the same behaviors as x86's patch. Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:05 UTC
46c5c59 powerpc/mpic_msgr: Add missing includes Add several #includes that mpic_msgr relies on being pulled implicitly, which only happens on certain configs. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Meador Inge <meador_inge@mentor.com> Cc: Jia Hongtao <B38951@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:04 UTC
6d9c00c powerpc: Fix null pointer deref in perf hardware breakpoints Currently if you are doing a global perf recording with hardware breakpoints (ie perf record -e mem:0xdeadbeef -a), you can oops with: Faulting instruction address: 0xc000000000738890 cpu 0xc: Vector: 300 (Data Access) at [c0000003f76af8d0] pc: c000000000738890: .hw_breakpoint_handler+0xa0/0x1e0 lr: c000000000738830: .hw_breakpoint_handler+0x40/0x1e0 sp: c0000003f76afb50 msr: 8000000000001032 dar: 6f0 dsisr: 42000000 current = 0xc0000003f765ac00 paca = 0xc00000000f262a00 softe: 0 irq_happened: 0x01 pid = 6810, comm = loop-read enter ? for help [c0000003f76afbe0] c00000000073cd04 .notifier_call_chain.isra.0+0x84/0xe0 [c0000003f76afc80] c00000000073cdbc .notify_die+0x3c/0x60 [c0000003f76afd20] c0000000000139f0 .do_dabr+0x40/0xf0 [c0000003f76afe30] c000000000005a9c handle_dabr_fault+0x14/0x48 --- Exception: 300 (Data Access) at 0000000010000480 SP (ff8679e0) is in userspace This is because we don't check to see if the break point is associated with task before we deference the task_struct pointer. This changes the update to use current. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:04 UTC
e3bc804 powerpc: Fixup whitespace in xmon There are a few whitespace goolies in xmon.c, some of them appear to be my fault. Fix them all in one go. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:03 UTC
ca5dd39 powerpc: Fix xmon dl command for new printk implementation Since the printk internals were reworked the xmon 'dl' command which dumps the content of __log_buf has stopped working. It is now a structured buffer, so just dumping it doesn't really work. Use the helpers added for kgdb to print out the content. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 24 August 2012, 10:26:03 UTC
9a0f938 drm/i915: Use the correct size of the GTT for placing the per-process entries The current layout is to place the per-process tables at the end of the GTT. However, this is currently using a hardcoded maximum size for the GTT and not taking in account limitations imposed by the BIOS. Use the value for the total number of entries allocated in the table as provided by the configuration registers. Reported-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Matthew Garret <mjg@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> 24 August 2012, 09:07:59 UTC
2d809dc Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This push fixes a build error on 32-bit archs in the hifn driver as well as a potential deadlock in the caam driver." * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: caam - fix possible deadlock condition crypto: hifn_795x - fix 64bit division and undefined __divdi3 on 32bit archs 24 August 2012, 04:58:04 UTC
62688e5 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull UDF, ext3 & reiserfs fixes from Jan Kara: "A couple of fixes (udf, reiserfs, ext3) that accumulated over my vacation." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: fix retun value on error path in udf_load_logicalvol jbd: don't write superblock when unmounting an ro filesystem reiserfs: fix deadlocks with quotas quota: Move down dqptr_sem read after initializing default warn[] type at __dquot_alloc_space(). UDF: During mount free lvid_bh before rescanning with different blocksize udf: fix udf_setsize() for file data in ICB 24 August 2012, 04:56:22 UTC
f4673d6 Merge tag 'upstream-3.6-rc3' of git://git.infradead.org/linux-ubifs Pull UBIFS fixes from Artem Bityutskiy: - Fix crash on error which prevents emulated power-cut testing. - Fix log reply regression introduced in 3.6-rc1. - Fix UBIFS complaints about too small debug buffer size which. - Fix error message spelling, and remove incorrect commentary. * tag 'upstream-3.6-rc3' of git://git.infradead.org/linux-ubifs: UBIFS: fix error messages spelling UBIFS: fix complaints about too small debug buffer size UBIFS: fix replay regression UBIFS: fix crash on error path UBIFS: remove stale commentary 24 August 2012, 04:50:40 UTC
270868f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide Pull IDE power management bugfix from David S. Miller. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide: ide: fix generic_ide_suspend/resume Oops 24 August 2012, 04:49:56 UTC
7ca63ee Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "This tree contains misc fixlets: a perf script python binding fix, a uprobes fix and a syscall tracing fix." * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Add missing files to build the python binding uprobes: Fix mmap_region()'s mm->mm_rb corruption if uprobe_mmap() fails tracing/syscalls: Fix perf syscall tracing when syscall_nr == -1 24 August 2012, 04:48:41 UTC
caf1aaf Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "This tree contains assorted fixlets: an alternatives patching crash fix, an irq migration/hotplug interaction fix, a fix for large AMD microcode images and a comment fixlet." * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, microcode, AMD: Fix broken ucode patch size check x86/alternatives: Fix p6 nops on non-modular kernels x86/fixup_irq: Use cpu_online_mask instead of cpu_all_mask x86/spinlocks: Fix comment in spinlock.h 24 August 2012, 04:47:54 UTC
b5bc0c7 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "Mostly small fixes for the fallout of the timekeeping overhaul in 3.6 along with stable fixes to address an accumulation problem and missing sanity checks for RTC readouts and user space provided values." * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: time: Avoid making adjustments if we haven't accumulated anything time: Avoid potential shift overflow with large shift values time: Fix casting issue in timekeeping_forward_now time: Ensure we normalize the timekeeper in tk_xtime_add time: Improve sanity checking of timekeeping inputs 24 August 2012, 04:46:57 UTC
d37e449 Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID fix from Jiri Kosina: "Fix for one particular device not being properly claimed by hid-multitouch driver" * 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: Remove QUANTA from special drivers list 24 August 2012, 04:45:54 UTC
7c4eaca drm: Check for invalid cursor flags Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> 23 August 2012, 23:38:40 UTC
22f5d11 drm: Initialize object type when using DRM_MODE() macro DRM_MODE() macro doesn't initialize the type of the base drm object. When a copy is made of the mode, the object type is overwritten with zero, and the the object can no longer be found by drm_mode_object_find() due to the type check failing. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 23 August 2012, 23:38:31 UTC
a672e1b xfs: check for possible overflow in xfs_ioc_trim If range.start or range.minlen is bigger than filesystem size, return invalid value error. This fixes possible overflow in BTOBB macro when passed value was nearly ULLONG_MAX. Signed-off-by: Tomas Racek <tracek@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com> 23 August 2012, 19:48:44 UTC
7612903 xfs: unlock the AGI buffer when looping in xfs_dialloc Also update some commens in the area to make the code easier to read. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com> 23 August 2012, 19:48:32 UTC
0b9e3f6 xfs: fix uninitialised variable in xfs_rtbuf_get() Results in this assert failure in generic/090: XFS: Assertion failed: *nmap >= 1, file: fs/xfs/xfs_bmap.c, line: 4363 ..... Call Trace: [<ffffffff814680db>] xfs_bmapi_read+0x6b/0x370 [<ffffffff814b64b2>] xfs_rtbuf_get+0x42/0x130 [<ffffffff814b6f09>] xfs_rtget_summary+0x89/0x120 [<ffffffff814b7bfe>] xfs_rtallocate_extent_size+0xce/0x340 [<ffffffff814b89f0>] xfs_rtallocate_extent+0x240/0x290 [<ffffffff81462c1a>] xfs_bmap_rtalloc+0x1ba/0x340 [<ffffffff81463a65>] xfs_bmap_alloc+0x35/0x40 [<ffffffff8146f111>] xfs_bmapi_allocate+0xf1/0x350 [<ffffffff8146f9de>] xfs_bmapi_write+0x66e/0xa60 [<ffffffff8144538a>] xfs_iomap_write_direct+0x22a/0x3f0 [<ffffffff8143707b>] __xfs_get_blocks+0x38b/0x5d0 [<ffffffff814372d4>] xfs_get_blocks_direct+0x14/0x20 [<ffffffff811b0081>] do_blockdev_direct_IO+0xf71/0x1eb0 [<ffffffff811b1015>] __blockdev_direct_IO+0x55/0x60 [<ffffffff814355ca>] xfs_vm_direct_IO+0x11a/0x1e0 [<ffffffff8112d617>] generic_file_direct_write+0xd7/0x1b0 [<ffffffff8143e16c>] xfs_file_dio_aio_write+0x13c/0x320 [<ffffffff8143e6f2>] xfs_file_aio_write+0x1c2/0x1d0 [<ffffffff81174a07>] do_sync_write+0xa7/0xe0 [<ffffffff81175288>] vfs_write+0xa8/0x160 [<ffffffff81175702>] sys_pwrite64+0x92/0xb0 [<ffffffff81b68f69>] system_call_fastpath+0x16/0x1b Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com> 23 August 2012, 19:48:16 UTC
1267643 powerpc/fsl: fix "Failed to mount /dev: No such device" errors Yocto (Built by Poky 7.0) 1.2 root filesystems fail to boot, at least over nfs, with: Failed to mount /dev: No such device Configuring DEVTMPFS fixes it. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 23 August 2012, 15:46:20 UTC
823f747 powerpc/fsl: update defconfigs run make savedefconfig on fsl defconfigs. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 23 August 2012, 15:46:15 UTC
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