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| author | Josef Bacik <jbacik@fb.com> | 2014-03-28 17:16:01 -0400 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-04-07 09:08:39 -0700 |
| commit | 3f8a18cc53bd1be26eb5b5247e1386ad0e21b623 (patch) | |
| tree | 266eeb3baf38b968ae2186575ae70ef431cf159f /fs/btrfs/ctree.h | |
| parent | 9e351cc862b098d8ec8f8022d110932490794925 (diff) | |
| download | op-kernel-dev-3f8a18cc53bd1be26eb5b5247e1386ad0e21b623.zip op-kernel-dev-3f8a18cc53bd1be26eb5b5247e1386ad0e21b623.tar.gz | |
Btrfs: hold the commit_root_sem when getting the commit root during send
We currently rely too heavily on roots being read-only to save us from just
accessing root->commit_root. We can easily balance blocks out from underneath a
read only root, so to save us from getting screwed make sure we only access
root->commit_root under the commit root sem. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 4253ab2..d8a669e 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -609,6 +609,7 @@ struct btrfs_path { unsigned int skip_locking:1; unsigned int leave_spinning:1; unsigned int search_commit_root:1; + unsigned int need_commit_sem:1; }; /* |
