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| author | Chris Mason | 2009-06-11 17:24:47 +0200 |
|---|---|---|
| committer | Chris Mason | 2009-06-11 17:24:47 +0200 |
| commit | b263c2c8bf13c273485bd99dbbeba79c844409dd (patch) | |
| tree | 8816eaabd20cfce5e37432ecf61cc8303863c48d /fs/btrfs/tree-log.c | |
| parent | Btrfs: fix oops when btrfs_inherit_iflags called with a NULL dir (diff) | |
| download | kernel-qcow2-linux-b263c2c8bf13c273485bd99dbbeba79c844409dd.tar.gz kernel-qcow2-linux-b263c2c8bf13c273485bd99dbbeba79c844409dd.tar.xz kernel-qcow2-linux-b263c2c8bf13c273485bd99dbbeba79c844409dd.zip | |
Btrfs: fix extent_buffer leak during tree log replay
During tree log replay, we read in the tree log roots,
process them and then free them. A recent change
takes an extra reference on the root node of the tree
when the root is read in, and stores that reference
in root->commit_root.
This reference was not being freed, leaving us with
one buffer pinned in ram for each subvol with
a tree log root after a crash.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/tree-log.c')
| -rw-r--r-- | fs/btrfs/tree-log.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 2b41fc08c34a..c13922206d1b 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -3019,6 +3019,7 @@ again: key.offset = found_key.offset - 1; wc.replay_dest->log_root = NULL; free_extent_buffer(log->node); + free_extent_buffer(log->commit_root); kfree(log); if (found_key.offset == 0) |