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| author | Liu Bo <bo.li.liu@oracle.com> | 2013-02-27 14:28:24 +0100 |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-02-28 19:33:51 +0100 |
| commit | 3321719ed67440bba1b0c5ae19c30d640263ccc8 (patch) | |
| tree | 3da1957a0530eeef652efcbffea6709c2d46df09 /fs/btrfs/tree-log.c | |
| parent | Btrfs: copy everything if we've created an inline extent (diff) | |
| download | linux-3321719ed67440bba1b0c5ae19c30d640263ccc8.tar.xz linux-3321719ed67440bba1b0c5ae19c30d640263ccc8.zip | |
Btrfs: fix memory leak of log roots
When we abort a transaction while fsyncing, we'll skip freeing log roots
part of committing a transaction, which leads to memory leak.
This adds a 'free log roots' in putting super when no more users hold
references on log roots, so it's safe and clean.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/btrfs/tree-log.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index e8b7a68e1b37..8e85e0e4333d 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2466,8 +2466,10 @@ static void free_log_tree(struct btrfs_trans_handle *trans, .process_func = process_one_buffer }; - ret = walk_log_tree(trans, log, &wc); - BUG_ON(ret); + if (trans) { + ret = walk_log_tree(trans, log, &wc); + BUG_ON(ret); + } while (1) { ret = find_first_extent_bit(&log->dirty_log_pages, |