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| author | Liu Bo <liubo2009@cn.fujitsu.com> | 2012-06-14 02:23:20 -0600 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-06-15 11:42:27 -0400 |
| commit | 6e841e32b159e298debbb2cb0e9158e894fcaf05 (patch) | |
| tree | 283946b4a93289a2e667ab729bdd962a52a67d6e | |
| parent | 4e42ae1bdcda77fc958a17d7ff4ba5a9c9c207da (diff) | |
| download | linux-6e841e32b159e298debbb2cb0e9158e894fcaf05.tar.gz linux-6e841e32b159e298debbb2cb0e9158e894fcaf05.tar.bz2 linux-6e841e32b159e298debbb2cb0e9158e894fcaf05.zip | |
Btrfs: avoid memory leak of extent state in error handling routine
We've forgotten to clear extent states in pinned tree, which will results in
space counter mismatch and memory leak:
WARNING: at fs/btrfs/extent-tree.c:7537 btrfs_free_block_groups+0x1f3/0x2e0 [btrfs]()
...
space_info 2 has 8380416 free, is not full
space_info total=12582912, used=4096, pinned=4096, reserved=0, may_use=0, readonly=4194304
btrfs state leak: start 29364224 end 29376511 state 1 in tree ffff880075f20090 refs 1
...
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
| -rw-r--r-- | fs/btrfs/disk-io.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 9a569aef72ea..63a36232788b 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3601,6 +3601,8 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans, btrfs_destroy_marked_extents(root, &cur_trans->dirty_pages, EXTENT_DIRTY); + btrfs_destroy_pinned_extent(root, + root->fs_info->pinned_extents); /* memset(cur_trans, 0, sizeof(*cur_trans)); |