From: Chris Mason Date: Thu, 11 Jun 2009 15:24:47 +0000 (-0400) Subject: Btrfs: fix extent_buffer leak during tree log replay X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b263c2c8bf13c273485bd99dbbeba79c844409dd;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git 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 --- 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)