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| author | Sage Weil <sage@newdream.net> | 2009-09-29 18:38:44 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-09-29 19:50:07 -0400 |
| commit | dd7e0b7b02ccff73b87032e20fc5b4f2c1cfcc14 (patch) | |
| tree | 2168da63d84f05106b2aa8eb8f5cdc8859f1e176 | |
| parent | 1ab86aedbc7845a946b4ba4edf37762629970708 (diff) | |
| download | blackbird-op-linux-dd7e0b7b02ccff73b87032e20fc5b4f2c1cfcc14.tar.gz blackbird-op-linux-dd7e0b7b02ccff73b87032e20fc5b4f2c1cfcc14.zip | |
Btrfs: fix deadlock with free space handling and user transactions
If an ioctl-initiated transaction is open, we can't force a commit during
the free space checks in order to free up pinned extents or else we
deadlock. Just ENOSPC instead.
A more satisfying solution that reserves space for the entire user
transaction up front is forthcoming...
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/extent-tree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a4b2b03cd682..d119c0388af1 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3168,7 +3168,7 @@ alloc: spin_unlock(&data_sinfo->lock); /* commit the current transaction and try again */ - if (!committed) { + if (!committed && !root->fs_info->open_ioctl_trans) { committed = 1; trans = btrfs_join_transaction(root, 1); if (!trans) |
