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| /openbmc/linux/fs/btrfs/ |
| H A D | transaction.c | 80d94fb3 Mon Oct 07 06:04:28 CDT 2013 Filipe David Borba Manana <fdmanana@gmail.com> Btrfs: fix memory leaks on transaction commit failure
Structures of the types tree_mod_elem and qgroup_update are allocated
during transaction commit but were not being released if the call to
btrfs_run_delayed_items() returned an error.
Stack trace reported by kmemleak:
unreferenced object 0xffff880679f0b398 (size 128):
comm "umount", pid 21508, jiffies 4295967793 (age 36718.112s)
hex dump (first 32 bytes):
60 b5 f0 79 06 88 ff ff 00 00 00 00 00 00 00 00 `..y............
00 00 00 00 00 00 00 00 50 1c 00 00 00 00 00 00 ........P.......
backtrace:
[<ffffffff81742d26>] kmemleak_alloc+0x26/0x50
[<ffffffff811889c2>] kmem_cache_alloc_trace+0x112/0x200
[<ffffffffa046f2d3>] tree_mod_log_insert_key.constprop.45+0x93/0x150 [btrfs]
[<ffffffffa04720f9>] __btrfs_cow_block+0x299/0x4f0 [btrfs]
[<ffffffffa0472510>] btrfs_cow_block+0x120/0x1f0 [btrfs]
[<ffffffffa0476679>] btrfs_search_slot+0x449/0x930 [btrfs]
[<ffffffffa048eecf>] btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[<ffffffffa04eb49c>] __btrfs_update_delayed_inode+0x1c/0x1d0 [btrfs]
[<ffffffffa04eb9e2>] __btrfs_run_delayed_items+0x162/0x1e0 [btrfs]
[<ffffffffa04eba63>] btrfs_delayed_inode_exit+0x3/0x20 [btrfs]
[<ffffffffa0499c63>] btrfs_commit_transaction+0x203/0xa50 [btrfs]
[<ffffffffa046b519>] btrfs_sync_fs+0x69/0x110 [btrfs]
[<ffffffff811cb210>] __sync_filesystem+0x30/0x60
[<ffffffff811cb2bb>] sync_filesystem+0x4b/0x70
[<ffffffff8119ce7b>] generic_shutdown_super+0x3b/0xf0
[<ffffffff8119cfc6>] kill_anon_super+0x16/0x30
unreferenced object 0xffff880677e0dd88 (size 32):
comm "umount", pid 21508, jiffies 4295967793 (age 36718.112s)
hex dump (first 32 bytes):
78 75 11 a9 06 88 ff ff 00 c0 e0 77 06 88 ff ff xu.........w....
40 c3 a2 70 06 88 ff ff 00 00 00 00 00 00 00 00 @..p............
backtrace:
[<ffffffff81742d26>] kmemleak_alloc+0x26/0x50
[<ffffffff811889c2>] kmem_cache_alloc_trace+0x112/0x200
[<ffffffffa04fa54f>] btrfs_qgroup_record_ref+0xf/0x90 [btrfs]
[<ffffffffa04e1914>] btrfs_add_delayed_tree_ref+0xf4/0x170 [btrfs]
[<ffffffffa048518a>] btrfs_free_tree_block+0x9a/0x220 [btrfs]
[<ffffffffa0472163>] __btrfs_cow_block+0x303/0x4f0 [btrfs]
[<ffffffffa0472510>] btrfs_cow_block+0x120/0x1f0 [btrfs]
[<ffffffffa0476679>] btrfs_search_slot+0x449/0x930 [btrfs]
[<ffffffffa048eecf>] btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[<ffffffffa04eb49c>] __btrfs_update_delayed_inode+0x1c/0x1d0 [btrfs]
[<ffffffffa04eb9e2>] __btrfs_run_delayed_items+0x162/0x1e0 [btrfs]
[<ffffffffa04eba63>] btrfs_delayed_inode_exit+0x3/0x20 [btrfs]
[<ffffffffa0499c63>] btrfs_commit_transaction+0x203/0xa50 [btrfs]
[<ffffffffa046b519>] btrfs_sync_fs+0x69/0x110 [btrfs]
[<ffffffff811cb210>] __sync_filesystem+0x30/0x60
[<ffffffff811cb2bb>] sync_filesystem+0x4b/0x70
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
80d94fb3 Mon Oct 07 06:04:28 CDT 2013 Filipe David Borba Manana <fdmanana@gmail.com> Btrfs: fix memory leaks on transaction commit failure
Structures of the types tree_mod_elem and qgroup_update are allocated
during transaction commit but were not being released if the call to
btrfs_run_delayed_items() returned an error.
Stack trace reported by kmemleak:
unreferenced object 0xffff880679f0b398 (size 128):
comm "umount", pid 21508, jiffies 4295967793 (age 36718.112s)
hex dump (first 32 bytes):
60 b5 f0 79 06 88 ff ff 00 00 00 00 00 00 00 00 `..y............
00 00 00 00 00 00 00 00 50 1c 00 00 00 00 00 00 ........P.......
backtrace:
[<ffffffff81742d26>] kmemleak_alloc+0x26/0x50
[<ffffffff811889c2>] kmem_cache_alloc_trace+0x112/0x200
[<ffffffffa046f2d3>] tree_mod_log_insert_key.constprop.45+0x93/0x150 [btrfs]
[<ffffffffa04720f9>] __btrfs_cow_block+0x299/0x4f0 [btrfs]
[<ffffffffa0472510>] btrfs_cow_block+0x120/0x1f0 [btrfs]
[<ffffffffa0476679>] btrfs_search_slot+0x449/0x930 [btrfs]
[<ffffffffa048eecf>] btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[<ffffffffa04eb49c>] __btrfs_update_delayed_inode+0x1c/0x1d0 [btrfs]
[<ffffffffa04eb9e2>] __btrfs_run_delayed_items+0x162/0x1e0 [btrfs]
[<ffffffffa04eba63>] btrfs_delayed_inode_exit+0x3/0x20 [btrfs]
[<ffffffffa0499c63>] btrfs_commit_transaction+0x203/0xa50 [btrfs]
[<ffffffffa046b519>] btrfs_sync_fs+0x69/0x110 [btrfs]
[<ffffffff811cb210>] __sync_filesystem+0x30/0x60
[<ffffffff811cb2bb>] sync_filesystem+0x4b/0x70
[<ffffffff8119ce7b>] generic_shutdown_super+0x3b/0xf0
[<ffffffff8119cfc6>] kill_anon_super+0x16/0x30
unreferenced object 0xffff880677e0dd88 (size 32):
comm "umount", pid 21508, jiffies 4295967793 (age 36718.112s)
hex dump (first 32 bytes):
78 75 11 a9 06 88 ff ff 00 c0 e0 77 06 88 ff ff xu.........w....
40 c3 a2 70 06 88 ff ff 00 00 00 00 00 00 00 00 @..p............
backtrace:
[<ffffffff81742d26>] kmemleak_alloc+0x26/0x50
[<ffffffff811889c2>] kmem_cache_alloc_trace+0x112/0x200
[<ffffffffa04fa54f>] btrfs_qgroup_record_ref+0xf/0x90 [btrfs]
[<ffffffffa04e1914>] btrfs_add_delayed_tree_ref+0xf4/0x170 [btrfs]
[<ffffffffa048518a>] btrfs_free_tree_block+0x9a/0x220 [btrfs]
[<ffffffffa0472163>] __btrfs_cow_block+0x303/0x4f0 [btrfs]
[<ffffffffa0472510>] btrfs_cow_block+0x120/0x1f0 [btrfs]
[<ffffffffa0476679>] btrfs_search_slot+0x449/0x930 [btrfs]
[<ffffffffa048eecf>] btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[<ffffffffa04eb49c>] __btrfs_update_delayed_inode+0x1c/0x1d0 [btrfs]
[<ffffffffa04eb9e2>] __btrfs_run_delayed_items+0x162/0x1e0 [btrfs]
[<ffffffffa04eba63>] btrfs_delayed_inode_exit+0x3/0x20 [btrfs]
[<ffffffffa0499c63>] btrfs_commit_transaction+0x203/0xa50 [btrfs]
[<ffffffffa046b519>] btrfs_sync_fs+0x69/0x110 [btrfs]
[<ffffffff811cb210>] __sync_filesystem+0x30/0x60
[<ffffffff811cb2bb>] sync_filesystem+0x4b/0x70
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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