- 09 Jan, 2014 3 commits
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Yan, Zheng authored
commit eb1b8af3 upstream. Aborted requests usually get cleared when the reply is received. If MDS crashes, no reply will be received. So we need to cleanup aborted requests when re-sending requests. Signed-off-by:
Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by:
Greg Farnum <greg@inktank.com> Signed-off-by:
Sage Weil <sage@inktank.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Milosz Tanski authored
commit ffc79664 upstream. In some cases I'm on my ceph client cluster I'm seeing hunk kernel tasks in the invalidate page code path. This is due to the fact that we don't check if the page is marked as cache before calling fscache_wait_on_page_write(). This is the log from the hang INFO: task XXXXXX:12034 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. ... Call Trace: [<ffffffff81568d09>] schedule+0x29/0x70 [<ffffffffa01d4cbd>] __fscache_wait_on_page_write+0x6d/0xb0 [fscache] [<ffffffff81083520>] ? add_wait_queue+0x60/0x60 [<ffffffffa029a3e9>] ceph_invalidate_fscache_page+0x29/0x50 [ceph] [<ffffffffa027df00>] ceph_invalidatepage+0x70/0x190 [ceph] [<ffffffff8112656f>] ? delete_from_page_cache+0x5f/0x70 [<ffffffff81133cab>] truncate_inode_page+0x8b/0x90 [<ffffffff81133ded>] truncate_inode_pages_range.part.12+0x13d/0x620 [<ffffffff8113431d>] truncate_inode_pages_range+0x4d/0x60 [<ffffffff811343b5>] truncate_inode_pages+0x15/0x20 [<ffffffff8119bbf6>] evict+0x1a6/0x1b0 [<ffffffff8119c3f3>] iput+0x103/0x190 ... Signed-off-by:
Milosz Tanski <milosz@adfin.com> Reviewed-by:
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Johan Hovold authored
commit 6f648546 upstream. Fix race in generic write implementation, which could lead to temporarily degraded throughput. The current generic write implementation introduced by commit 27c7acf2 ("USB: serial: reimplement generic fifo-based writes") has always had this bug, although it's fairly hard to trigger and the consequences are not likely to be noticed. Specifically, a write() on one CPU while the completion handler is running on another could result in only one of the two write urbs being utilised to empty the remainder of the write fifo (unless there is a second write() that doesn't race during that time). Signed-off-by:
Johan Hovold <jhovold@gmail.com> Signed-off-by:
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- 20 Dec, 2013 37 commits
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Greg Kroah-Hartman authored
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Roger Quadros authored
commit 313a76ee upstream. In _ocp_softreset(), after _set_softreset() + write_sysconfig(), the hwmod's sysc_cache will always contain SOFTRESET bit set so all further writes to sysconfig using this cache will initiate a repeated SOFTRESET e.g. enable_sysc(). This is true for OMAP3 like platforms that have RESET_DONE status in the SYSSTATUS register and so the the SOFTRESET bit in SYSCONFIG is not automatically cleared. It is not a problem for OMAP4 like platforms that indicate RESET completion by clearing the SOFTRESET bit in the SYSCONFIG register. This repeated SOFTRESET is undesired and was the root cause of USB host issues on OMAP3 platforms when hwmod was allowed to do the SOFTRESET for the USB Host module. To fix this we clear the SOFTRESET bit and update the sysconfig register + sysc_cache using write_sysconfig(). Signed-off-by:
Roger Quadros <rogerq@ti.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM [paul@pwsan.com: renamed _clr_softreset() to _clear_softreset()] Signed-off-by:
Paul Walmsley <paul@pwsan.com> Signed-off-by:
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Chris Wilson authored
commit 662c6ecb upstream. With some divider values we end up with the wrong result. So remove the intermediates (like Ville suggested in the first place) to get the right answer. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Jesse Barnes authored
commit acbec814 upstream. Calculation is a little different than other platforms. v2: update to use port_clock instead rebase on top of Ville's changes v3: update to new port_clock semantics - don't divide by pixel_multiplier (Ville) References: https://bugs.freedesktop.org/show_bug.cgi?id=67345Signed-off-by:
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Jesse Barnes authored
commit f6071166 upstream. The global integrated clock source bit resides in DPLL B on VLV, but we were treating it as a per-pipe resource. It needs to be set whenever any PLL is active, so pull setting the bit out of vlv_update_pll and into vlv_enable_pll. Also add a vlv_disable_pll to prevent disabling it when pipe B shuts down. I'm guessing on the references here, I expect this to bite any config where multiple displays are active or displays are moved from pipe to pipe. v2: re-add bits in vlv_update_pll to keep from confusing the state checker v3: use enum pipe checks (Daniel) set CRI clock source early (Ville) consistently set CRI clock source everywhere (Ville) v4: drop unnecessary setting of bit in vlv enable pll (Ville) References: https://bugs.freedesktop.org/show_bug.cgi?id=67245 References: https://bugs.freedesktop.org/show_bug.cgi?id=69693Signed-off-by:
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Liu Bo authored
commit b1a06a4b upstream. Lockdep complains about btrfs's async commit: [ 2372.462171] [ BUG: bad unlock balance detected! ] [ 2372.462191] 3.12.0+ #32 Tainted: G W [ 2372.462209] ------------------------------------- [ 2372.462228] ceph-osd/14048 is trying to release lock (sb_internal) at: [ 2372.462275] [<ffffffffa022cb10>] btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs] [ 2372.462305] but there are no more locks to release! [ 2372.462324] [ 2372.462324] other info that might help us debug this: [ 2372.462349] no locks held by ceph-osd/14048. [ 2372.462367] [ 2372.462367] stack backtrace: [ 2372.462386] CPU: 2 PID: 14048 Comm: ceph-osd Tainted: G W 3.12.0+ #32 [ 2372.462414] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS 080015 11/09/2011 [ 2372.462455] ffffffffa022cb10 ffff88007490fd28 ffffffff816f094a ffff8800378aa320 [ 2372.462491] ffff88007490fd50 ffffffff810adf4c ffff8800378aa320 ffff88009af97650 [ 2372.462526] ffffffffa022cb10 ffff88007490fd88 ffffffff810b01ee ffff8800898c0000 [ 2372.462562] Call Trace: [ 2372.462584] [<ffffffffa022cb10>] ? btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs] [ 2372.462619] [<ffffffff816f094a>] dump_stack+0x45/0x56 [ 2372.462642] [<ffffffff810adf4c>] print_unlock_imbalance_bug+0xec/0x100 [ 2372.462677] [<ffffffffa022cb10>] ? btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs] [ 2372.462710] [<ffffffff810b01ee>] lock_release+0x18e/0x210 [ 2372.462742] [<ffffffffa022cb36>] btrfs_commit_transaction_async+0x1d6/0x2a0 [btrfs] [ 2372.462783] [<ffffffffa025a7ce>] btrfs_ioctl_start_sync+0x3e/0xc0 [btrfs] [ 2372.462822] [<ffffffffa025f1d3>] btrfs_ioctl+0x4c3/0x1f70 [btrfs] [ 2372.462849] [<ffffffff812c0321>] ? avc_has_perm+0x121/0x1b0 [ 2372.462873] [<ffffffff812c0224>] ? avc_has_perm+0x24/0x1b0 [ 2372.462897] [<ffffffff8107ecc8>] ? sched_clock_cpu+0xa8/0x100 [ 2372.462922] [<ffffffff8117b145>] do_vfs_ioctl+0x2e5/0x4e0 [ 2372.462946] [<ffffffff812c19e6>] ? file_has_perm+0x86/0xa0 [ 2372.462969] [<ffffffff8117b3c1>] SyS_ioctl+0x81/0xa0 [ 2372.462991] [<ffffffff817045a4>] tracesys+0xdd/0xe2 ==================================================== It's because that we don't do the right thing when checking if it's ok to tell lockdep that we're trying to release the rwsem. If the trans handle's type is TRANS_ATTACH, we won't acquire the freeze rwsem, but as TRANS_ATTACH fits the check (trans < TRANS_JOIN_NOLOCK), we'll release the freeze rwsem, which makes lockdep complains a lot. Reported-by:
Ma Jianpeng <majianpeng@gmail.com> Signed-off-by:
Liu Bo <bo.li.liu@oracle.com> Signed-off-by:
Miao Xie <miaox@cn.fujitsu.com> Signed-off-by:
Josef Bacik <jbacik@fusionio.com> Signed-off-by:
Chris Mason <chris.mason@fusionio.com> Signed-off-by:
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Liu Bo authored
commit 48ec4736 upstream. Running balance and defrag concurrently can end up with a crash: kernel BUG at fs/btrfs/relocation.c:4528! RIP: 0010:[<ffffffffa01ac33b>] [<ffffffffa01ac33b>] btrfs_reloc_cow_block+ 0x1eb/0x230 [btrfs] Call Trace: [<ffffffffa01398c1>] ? update_ref_for_cow+0x241/0x380 [btrfs] [<ffffffffa0180bad>] ? copy_extent_buffer+0xad/0x110 [btrfs] [<ffffffffa0139da1>] __btrfs_cow_block+0x3a1/0x520 [btrfs] [<ffffffffa013a0b6>] btrfs_cow_block+0x116/0x1b0 [btrfs] [<ffffffffa013ddad>] btrfs_search_slot+0x43d/0x970 [btrfs] [<ffffffffa0153c57>] btrfs_lookup_file_extent+0x37/0x40 [btrfs] [<ffffffffa0172a5e>] __btrfs_drop_extents+0x11e/0xae0 [btrfs] [<ffffffffa013b3fd>] ? generic_bin_search.constprop.39+0x8d/0x1a0 [btrfs] [<ffffffff8117d14a>] ? kmem_cache_alloc+0x1da/0x200 [<ffffffffa0138e7a>] ? btrfs_alloc_path+0x1a/0x20 [btrfs] [<ffffffffa0173ef0>] btrfs_drop_extents+0x60/0x90 [btrfs] [<ffffffffa016b24d>] relink_extent_backref+0x2ed/0x780 [btrfs] [<ffffffffa0162fe0>] ? btrfs_submit_bio_hook+0x1e0/0x1e0 [btrfs] [<ffffffffa01b8ed7>] ? iterate_inodes_from_logical+0x87/0xa0 [btrfs] [<ffffffffa016b909>] btrfs_finish_ordered_io+0x229/0xac0 [btrfs] [<ffffffffa016c3b5>] finish_ordered_fn+0x15/0x20 [btrfs] [<ffffffffa018cbe5>] worker_loop+0x125/0x4e0 [btrfs] [<ffffffffa018cac0>] ? btrfs_queue_worker+0x300/0x300 [btrfs] [<ffffffff81075ea0>] kthread+0xc0/0xd0 [<ffffffff81075de0>] ? insert_kthread_work+0x40/0x40 [<ffffffff8164796c>] ret_from_fork+0x7c/0xb0 [<ffffffff81075de0>] ? insert_kthread_work+0x40/0x40 ---------------------------------------------------------------------- It turns out to be that balance operation will bump root's @last_snapshot, which enables snapshot-aware defrag path, and backref walking stuff will find data reloc tree as refs' parent, and hit the BUG_ON() during COW. As data reloc tree's data is just for relocation purpose, and will be deleted right after relocation is done, it's unnecessary to walk those refs belonged to data reloc tree, it'd be better to skip them. Signed-off-by:
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Liu Bo authored
commit 6f519564 upstream. If something wrong happens in write endio, running snapshot-aware defragment can end up with undefined results, maybe a crash, so we should avoid it. In order to share similar code, this also adds a helper to free the struct for snapshot-aware defrag. Signed-off-by:
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Josef Bacik authored
commit 93858769 upstream. A user reported a list corruption warning from btrfs_remove_ordered_extent, it is because we aren't taking the ordered_root_lock when we remove the inode from the ordered operations list. Thanks, Signed-off-by:
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Josef Bacik authored
commit ed259095 upstream. Apparently we don't actually close the files until we return to userspace, so stop using vfs_read in send. This is actually better for us since we can avoid all the extra logic of holding the file we're sending open and making sure to clean it up. This will fix people who have been hitting too many files open errors when trying to send. Thanks, Signed-off-by:
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Filipe David Borba Manana authored
commit 8185554d upstream. When a directory has a default ACL and a subdirectory is created under that directory, btrfs_init_acl() is called when the subdirectory's inode is created to initialize the inode's ACL (inherited from the parent directory) but it was clearing the ACL from the inode after setting it if posix_acl_create() returned success, instead of clearing it only if it returned an error. To reproduce this issue: $ mkfs.btrfs -f /dev/loop0 $ mount /dev/loop0 /mnt $ mkdir /mnt/acl $ setfacl -d --set u::rwx,g::rwx,o::- /mnt/acl $ getfacl /mnt/acl user::rwx group::rwx other::r-x default:user::rwx default:group::rwx default:other::--- $ mkdir /mnt/acl/dir1 $ getfacl /mnt/acl/dir1 user::rwx group::rwx other::--- After unmounting and mounting again the filesystem, fgetacl returned the expected ACL: $ umount /mnt/acl $ mount /dev/loop0 /mnt $ getfacl /mnt/acl/dir1 user::rwx group::rwx other::--- default:user::rwx default:group::rwx default:other::--- Meaning that the underlying xattr was persisted. Reported-by:
Giuseppe Fierro <giuseppe@fierro.org> Signed-off-by:
Filipe David Borba Manana <fdmanana@gmail.com> Signed-off-by:
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Josef Bacik authored
commit ed9e8af8 upstream. I added an assert to make sure we were looking up aligned offsets for csums and I tripped it when running xfstests. This is because log_one_extent was checking if block_start == 0 for a hole instead of EXTENT_MAP_HOLE. This worked out fine in practice it seems, but it adds a lot of extra work that is uneeded. With this fix I'm no longer tripping my assert. Thanks, Signed-off-by:
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Liu Bo authored
commit 7d3d1744 upstream. As we're hold a ref on looking up the extent map, we need to drop the ref before returning to callers. Signed-off-by:
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Josef Bacik authored
commit e0228285 upstream. If we abort a transaction in the middle of a commit we weren't undoing the intwrite locking. This patch fixes that problem. Signed-off-by:
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Josef Bacik authored
commit d4b4087c upstream. While running some snashot aware defrag tests I noticed I was panicing every once and a while in key_search. This is because of the optimization that says if we find a key at slot 0 it will be at slot 0 all the way down the rest of the tree. This isn't the case for btrfs_search_old_slot since it will likely replay changes to a buffer if something has changed since we took our sequence number. So short circuit this optimization by setting prev_cmp to -1 every time we call key_search so we will do our normal binary search. With this patch I am no longer seeing the panics I was seeing before. Thanks, Signed-off-by:
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Greg Kroah-Hartman authored
It turns out that commit: d3f7d56a was applied to the tree twice, which didn't hurt anything, but it's good to fix this up. Reported-by:
Veaceslav Falico <veaceslav@falico.eu> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Richard Weinberger <richard@nod.at> Cc: Shawn Landden <shawnlandden@gmail.com> Cc: Tom Herbert <therbert@google.com> Signed-off-by:
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Matt Walker authored
commit 9cb80b96 upstream. Added detection for newer Elantech touchpads, so that kernel doesn't fall-back to default PS/2 driver. Supports touchpads released after ~August 2013. Fixes bug: https://lists.launchpad.net/kernel-packages/msg18481.html Tested on an Acer Aspire S7-392-6302. Signed-off by: Matt Walker <matt.g.d.walker@gmail.com> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Andy Adamson authored
commit 4a82fd7c upstream. When the state manager is processing the NFS4CLNT_DELEGRETURN flag, session draining is off, but DELEGRETURN can still get a session error. The async handler calls nfs4_schedule_session_recovery returns -EAGAIN, and the DELEGRETURN done then restarts the RPC task in the prepare state. With the state manager still processing the NFS4CLNT_DELEGRETURN flag with session draining off, these DELEGRETURNs will cycle with errors filling up the session slots. This prevents OPEN reclaims (from nfs_delegation_claim_opens) required by the NFS4CLNT_DELEGRETURN state manager processing from completing, hanging the state manager in the __rpc_wait_for_completion_task in nfs4_run_open_task as seen in this kernel thread dump: kernel: 4.12.32.53-ma D 0000000000000000 0 3393 2 0x00000000 kernel: ffff88013995fb60 0000000000000046 ffff880138cc5400 ffff88013a9df140 kernel: ffff8800000265c0 ffffffff8116eef0 ffff88013fc10080 0000000300000001 kernel: ffff88013a4ad058 ffff88013995ffd8 000000000000fbc8 ffff88013a4ad058 kernel: Call Trace: kernel: [<ffffffff8116eef0>] ? cache_alloc_refill+0x1c0/0x240 kernel: [<ffffffffa0358110>] ? rpc_wait_bit_killable+0x0/0xa0 [sunrpc] kernel: [<ffffffffa0358152>] rpc_wait_bit_killable+0x42/0xa0 [sunrpc] kernel: [<ffffffff8152914f>] __wait_on_bit+0x5f/0x90 kernel: [<ffffffffa0358110>] ? rpc_wait_bit_killable+0x0/0xa0 [sunrpc] kernel: [<ffffffff815291f8>] out_of_line_wait_on_bit+0x78/0x90 kernel: [<ffffffff8109b520>] ? wake_bit_function+0x0/0x50 kernel: [<ffffffffa035810d>] __rpc_wait_for_completion_task+0x2d/0x30 [sunrpc] kernel: [<ffffffffa040d44c>] nfs4_run_open_task+0x11c/0x160 [nfs] kernel: [<ffffffffa04114e7>] nfs4_open_recover_helper+0x87/0x120 [nfs] kernel: [<ffffffffa0411646>] nfs4_open_recover+0xc6/0x150 [nfs] kernel: [<ffffffffa040cc6f>] ? nfs4_open_recoverdata_alloc+0x2f/0x60 [nfs] kernel: [<ffffffffa0414e1a>] nfs4_open_delegation_recall+0x6a/0xa0 [nfs] kernel: [<ffffffffa0424020>] nfs_end_delegation_return+0x120/0x2e0 [nfs] kernel: [<ffffffff8109580f>] ? queue_work+0x1f/0x30 kernel: [<ffffffffa0424347>] nfs_client_return_marked_delegations+0xd7/0x110 [nfs] kernel: [<ffffffffa04225d8>] nfs4_run_state_manager+0x548/0x620 [nfs] kernel: [<ffffffffa0422090>] ? nfs4_run_state_manager+0x0/0x620 [nfs] kernel: [<ffffffff8109b0f6>] kthread+0x96/0xa0 kernel: [<ffffffff8100c20a>] child_rip+0xa/0x20 kernel: [<ffffffff8109b060>] ? kthread+0x0/0xa0 kernel: [<ffffffff8100c200>] ? child_rip+0x0/0x20 The state manager can not therefore process the DELEGRETURN session errors. Change the async handler to wait for recovery on session errors. Signed-off-by:
Andy Adamson <andros@netapp.com> Signed-off-by:
Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by:
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Alan authored
commit dace8bbf upstream. If loaded with isapnp = 0 the driver explodes. This is catching people out now and then. What should happen in the working case is a complete mystery and the code appears terminally confused, but we can at least make the error path work properly. Signed-off-by:
Alan Cox <alan@linux.intel.com> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Wim Van Sebroeck <wim@iguana.be> Partially-Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=53991Signed-off-by:
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H Hartley Sweeten authored
commit f6b316bc upstream. Use comedi_dio_update_state() to handle the boilerplate code to update the subdevice s->state. Also, fix a bug where the state of the channels is returned in data[0]. The comedi core expects it to be returned in data[1]. Signed-off-by:
H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by:
Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
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H Hartley Sweeten authored
commit 97f4289a upstream. [Split from original patch subject: "staging: comedi: drivers: use comedi_dio_update_state() for simple cases"] Use comedi_dio_update_state() to handle the boilerplate code to update the subdevice s->state for simple cases where the hardware is updated when any channel is modified. Also, fix a bug in the amplc_pc263 and amplc_pci263 drivers where the current state is not returned in data[1]. Signed-off-by:
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Ben Segall authored
commit f9f9ffc2 upstream. throttle_cfs_rq() doesn't check to make sure that period_timer is running, and while update_curr/assign_cfs_runtime does, a concurrently running period_timer on another cpu could cancel itself between this cpu's update_curr and throttle_cfs_rq(). If there are no other cfs_rqs running in the tg to restart the timer, this causes the cfs_rq to be stranded forever. Fix this by calling __start_cfs_bandwidth() in throttle if the timer is inactive. (Also add some sched_debug lines for cfs_bandwidth.) Tested: make a run/sleep task in a cgroup, loop switching the cgroup between 1ms/100ms quota and unlimited, checking for timer_active=0 and throttled=1 as a failure. With the throttle_cfs_rq() change commented out this fails, with the full patch it passes. Signed-off-by:
Ben Segall <bsegall@google.com> Signed-off-by:
Peter Zijlstra <peterz@infradead.org> Cc: pjt@google.com Link: http://lkml.kernel.org/r/20131016181632.22647.84174.stgit@sword-of-the-dawn.mtv.corp.google.comSigned-off-by:
Ingo Molnar <mingo@kernel.org> Cc: Chris J Arges <chris.j.arges@canonical.com> Signed-off-by:
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Hans Verkuil authored
commit 0db3fa27 upstream. drivers/media/dvb-frontends/cxd2820r_core.c:34:32: error: cannot size expression drivers/media/dvb-frontends/cxd2820r_core.c:68:32: error: cannot size expression Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Acked-by:
Antti Palosaari <crope@iki.fi> Reviewed-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
Mauro Carvalho Chehab <m.chehab@samsung.com> Cc: Frederik Himpe <fhimpe@telenet.be> Signed-off-by:
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Helge Deller authored
commit 3873d064 upstream. When compiling a 32bit kernel with CONFIG_LBDAF=n the compiler complains like shown below. Fix this warning by instead using sector_div() which is provided by the kernel.h header file. fs/nfs/blocklayout/extents.c: In function ‘normalize’: include/asm-generic/div64.h:43:28: warning: comparison of distinct pointer types lacks a cast [enabled by default] fs/nfs/blocklayout/extents.c:47:13: note: in expansion of macro ‘do_div’ nfs/blocklayout/extents.c:47:2: warning: right shift count >= width of type [enabled by default] fs/nfs/blocklayout/extents.c:47:2: warning: passing argument 1 of ‘__div64_32’ from incompatible pointer type [enabled by default] include/asm-generic/div64.h:35:17: note: expected ‘uint64_t *’ but argument is of type ‘sector_t *’ extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); Signed-off-by:
Helge Deller <deller@gmx.de> Signed-off-by:
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Ben Hutchings authored
commit 0a5f99cf upstream. The change to support Genius Manticore Keyboard also changed behaviour for Genius Gx Imperator Keyboard, as there is no break between the cases. This is presumably a mistake. Reported by Coverity as CID 1134029. Fixes: 4a2c94c9 ('HID: kye: Add report fixup for Genius Manticore Keyboard') Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
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Benjamin Tissoires authored
commit 4a2c94c9 upstream. Genius Manticore Keyboard presents the same problem in its report descriptors than Genius Gila Gaming Mouse and Genius Imperator Keyboard. Use the same fixup. Reported-and-tested-by:
Adam Kulagowski <fidor@fidor.org> Signed-off-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
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J. Bruce Fields authored
commit 950ee956 upstream. Symptoms were spurious -ENOENTs on stat of an NFS filesystem from a 32-bit NFS server exporting a very large XFS filesystem, when the server's cache is cold (so the inodes in question are not in cache). Reviewed-by:
Christoph Hellwig <hch@lst.de> Reported-by:
Trevor Cordes <trevor@tecnopolis.ca> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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J. Bruce Fields authored
commit b7a6ec52 upstream. The filehandle lookup code wants this version of getattr. Reviewed-by:
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Joe Thornber authored
commit 9b7aaa64 upstream. A thin-pool may be in read-only mode because the pool's data or metadata space was exhausted. To allow for recovery, by adding more space to the pool, we must allow a pool to transition from PM_READ_ONLY to PM_WRITE mode. Otherwise, running out of space will render the pool permanently read-only. Signed-off-by:
Joe Thornber <ejt@redhat.com> Signed-off-by:
Mike Snitzer <snitzer@redhat.com> Signed-off-by:
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Joe Thornber authored
commit 5383ef3a upstream. If the thin-pool transitioned to fail mode and the thin-pool's table were reloaded for some reason: the new table's default pool mode would be read-write, though it will transition to fail mode during resume. When the pool mode transitions directly from PM_WRITE to PM_FAIL we need to re-establish the intermediate read-only state in both the metadata and persistent-data block manager (as is usually done with the normal pool mode transition sequence: PM_WRITE -> PM_READ_ONLY -> PM_FAIL). Signed-off-by:
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Joe Thornber authored
commit 020cc3b5 upstream. Rename commit_or_fallback() to commit(). Now all previous calls to commit() will trigger the pool mode to fallback if the commit fails. Also, check the error returned from commit() in alloc_data_block(). Signed-off-by:
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Mike Snitzer authored
commit 4a02b34e upstream. Switch the thin pool to read-only mode in alloc_data_block() if dm_pool_alloc_data_block() fails because the pool's metadata space is exhausted. Differentiate between data and metadata space in messages about no free space available. This issue was noticed with the device-mapper-test-suite using: dmtest run --suite thin-provisioning -n /exhausting_metadata_space_causes_fail_mode/ The quantity of errors logged in this case must be reduced. before patch: device-mapper: thin: 253:4: reached low water mark for metadata device: sending event. device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map common: dm_tm_shadow_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map common: dm_tm_shadow_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map common: dm_tm_shadow_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map common: dm_tm_shadow_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map common: dm_tm_shadow_block() failed <snip ... these repeat for a _very_ long while ... > device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: 253:4: commit failed: error = -28 device-mapper: thin: 253:4: switching pool to read-only mode after patch: device-mapper: thin: 253:4: reached low water mark for metadata device: sending event. device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: 253:4: no free metadata space available. device-mapper: thin: 253:4: switching pool to read-only mode Signed-off-by:
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Joe Thornber authored
commit fafc7a81 upstream. Switch the thin pool to read-only mode when dm_thin_insert_block() fails since there is little reason to expect the cause of the failure to be resolved without further action by user space. This issue was noticed with the device-mapper-test-suite using: dmtest run --suite thin-provisioning -n /exhausting_metadata_space_causes_fail_mode/ The quantity of errors logged in this case must be reduced. before patch: device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block <snip ... these repeat for a long while ... > device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map common: dm_tm_shadow_block() failed device-mapper: thin: 253:4: no free metadata space available. device-mapper: thin: 253:4: switching pool to read-only mode after patch: device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: 253:4: dm_thin_insert_block() failed: error = -28 device-mapper: thin: 253:4: switching pool to read-only mode Signed-off-by:
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Mikulas Patocka authored
commit 5b2d0657 upstream. The dm_round_up function may overflow to zero. In this case, dm_table_create() must fail rather than go on to allocate an empty array with alloc_targets(). This fixes a possible memory corruption that could be caused by passing too large a number in "param->target_count". Signed-off-by:
Mikulas Patocka <mpatocka@redhat.com> Signed-off-by:
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Joe Thornber authored
commit 5b564d80 upstream. The old behaviour, returning -EINVAL if a ref_count of 0 would be decremented, was removed in commit f722063e ("dm space map: optimise sm_ll_dec and sm_ll_inc"). To fix this regression we return an error code from the mutator function pointer passed to sm_ll_mutate() and have dec_ref_count() return -EINVAL if the old ref_count is 0. Add a DMERR to reflect the potential seriousness of this error. Also, add missing dm_tm_unlock() to sm_ll_mutate()'s error path. With this fix the following dmts regression test now passes: dmtest run --suite cache -n /metadata_use_kernel/ The next patch fixes the higher-level dm-array code that exposed this regression. Signed-off-by:
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Mike Snitzer authored
commit f62b6b8f upstream. Commit 2fc48021 ("dm persistent metadata: add space map threshold callback") introduced a regression to the metadata block allocation path that resulted in errors being ignored. This regression was uncovered by running the following device-mapper-test-suite test: dmtest run --suite thin-provisioning -n /exhausting_metadata_space_causes_fail_mode/ The ignored error codes in sm_metadata_new_block() could crash the kernel through use of either the dm-thin or dm-cache targets, e.g.: device-mapper: thin: 253:4: reached low water mark for metadata device: sending event. device-mapper: space map metadata: unable to allocate new metadata block general protection fault: 0000 [#1] SMP ... Workqueue: dm-thin do_worker [dm_thin_pool] task: ffff880035ce2ab0 ti: ffff88021a054000 task.ti: ffff88021a054000 RIP: 0010:[<ffffffffa0331385>] [<ffffffffa0331385>] metadata_ll_load_ie+0x15/0x30 [dm_persistent_data] RSP: 0018:ffff88021a055a68 EFLAGS: 00010202 RAX: 003fc8243d212ba0 RBX: ffff88021a780070 RCX: ffff88021a055a78 RDX: ffff88021a055a78 RSI: 0040402222a92a80 RDI: ffff88021a780070 RBP: ffff88021a055a68 R08: ffff88021a055ba4 R09: 0000000000000010 R10: 0000000000000000 R11: 00000002a02e1000 R12: ffff88021a055ad4 R13: 0000000000000598 R14: ffffffffa0338470 R15: ffff88021a055ba4 FS: 0000000000000000(0000) GS:ffff88033fca0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f467c0291b8 CR3: 0000000001a0b000 CR4: 00000000000007e0 Stack: ffff88021a055ab8 ffffffffa0332020 ffff88021a055b30 0000000000000001 ffff88021a055b30 0000000000000000 ffff88021a055b18 0000000000000000 ffff88021a055ba4 ffff88021a055b98 ffff88021a055ae8 ffffffffa033304c Call Trace: [<ffffffffa0332020>] sm_ll_lookup_bitmap+0x40/0xa0 [dm_persistent_data] [<ffffffffa033304c>] sm_metadata_count_is_more_than_one+0x8c/0xc0 [dm_persistent_data] [<ffffffffa0333825>] dm_tm_shadow_block+0x65/0x110 [dm_persistent_data] [<ffffffffa0331b00>] sm_ll_mutate+0x80/0x300 [dm_persistent_data] [<ffffffffa0330e60>] ? set_ref_count+0x10/0x10 [dm_persistent_data] [<ffffffffa0331dba>] sm_ll_inc+0x1a/0x20 [dm_persistent_data] [<ffffffffa0332270>] sm_disk_new_block+0x60/0x80 [dm_persistent_data] [<ffffffff81520036>] ? down_write+0x16/0x40 [<ffffffffa001e5c4>] dm_pool_alloc_data_block+0x54/0x80 [dm_thin_pool] [<ffffffffa001b23c>] alloc_data_block+0x9c/0x130 [dm_thin_pool] [<ffffffffa001c27e>] provision_block+0x4e/0x180 [dm_thin_pool] [<ffffffffa001fe9a>] ? dm_thin_find_block+0x6a/0x110 [dm_thin_pool] [<ffffffffa001c57a>] process_bio+0x1ca/0x1f0 [dm_thin_pool] [<ffffffff8111e2ed>] ? mempool_free+0x8d/0xa0 [<ffffffffa001d755>] process_deferred_bios+0xc5/0x230 [dm_thin_pool] [<ffffffffa001d911>] do_worker+0x51/0x60 [dm_thin_pool] [<ffffffff81067872>] process_one_work+0x182/0x3b0 [<ffffffff81068c90>] worker_thread+0x120/0x3a0 [<ffffffff81068b70>] ? manage_workers+0x160/0x160 [<ffffffff8106eb2e>] kthread+0xce/0xe0 [<ffffffff8106ea60>] ? kthread_freezable_should_stop+0x70/0x70 [<ffffffff8152af6c>] ret_from_fork+0x7c/0xb0 [<ffffffff8106ea60>] ? kthread_freezable_should_stop+0x70/0x70 [<ffffffff8152af6c>] ret_from_fork+0x7c/0xb0 [<ffffffff8106ea60>] ? kthread_freezable_should_stop+0x70/0x70 Signed-off-by:
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Mikulas Patocka authored
commit 718822c1 upstream. The dm-delay target uses a shared workqueue for multiple instances. This can cause deadlock if two or more dm-delay targets are stacked on the top of each other. This patch changes dm-delay to use a per-instance workqueue. Signed-off-by:
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