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(parent: fffc0fc) | patch
Btrfs: fix deadlock in run_delalloc_nocow
authorLiu Bo <bo.li.liu@oracle.com>
Thu, 25 Jan 2018 18:02:50 +0000 (11:02 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 22 Feb 2018 14:43:49 +0000 (15:43 +0100)
commitecd72fd604b1f3aa3ec03962e4676760a8e1a1b4
treed5f37417a494c64752e6818191ecae288cda9994tree | snapshot
parentfffc0fcaebebefd06b07838e4aad5ef5f30803fdcommit | diff
Btrfs: fix deadlock in run_delalloc_nocow

commit e89166990f11c3f21e1649d760dd35f9e410321c upstream.

@cur_offset is not set back to what it should be (@cow_start) if
btrfs_next_leaf() returns something wrong, and the range [cow_start,
cur_offset) remains locked forever.

cc: <stable@vger.kernel.org>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/btrfs/inode.c diff | blob | history
kernel
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