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authorChris Mason <chris.mason@fusionio.com>2013-02-05 16:04:03 +0100
committerChris Mason <chris.mason@fusionio.com>2013-02-05 16:04:03 +0100
commit0e4e02636611dbf89a2f36320a32054f9936d6cb (patch)
tree18b4ecc6c3812770b29729d7abbdc673ffd73a41 /fs/btrfs/transaction.c
parentBtrfs: remove conflicting check for minimum number of devices in raid56 (diff)
parentBtrfs: fix repeated delalloc work allocation (diff)
downloadlinux-0e4e02636611dbf89a2f36320a32054f9936d6cb.tar.xz
linux-0e4e02636611dbf89a2f36320a32054f9936d6cb.zip
Merge branch 'for-linus' into raid56-experimental
Conflicts: fs/btrfs/volumes.c Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/transaction.c')
-rw-r--r--fs/btrfs/transaction.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 1e7f176bd211..c56b9d436204 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1475,7 +1475,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
goto cleanup_transaction;
}
- if (cur_trans->aborted) {
+ /* Stop the commit early if ->aborted is set */
+ if (unlikely(ACCESS_ONCE(cur_trans->aborted))) {
ret = cur_trans->aborted;
goto cleanup_transaction;
}
@@ -1581,6 +1582,11 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
wait_event(cur_trans->writer_wait,
atomic_read(&cur_trans->num_writers) == 1);
+ /* ->aborted might be set after the previous check, so check it */
+ if (unlikely(ACCESS_ONCE(cur_trans->aborted))) {
+ ret = cur_trans->aborted;
+ goto cleanup_transaction;
+ }
/*
* the reloc mutex makes sure that we stop
* the balancing code from coming in and moving
@@ -1664,6 +1670,17 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
goto cleanup_transaction;
}
+ /*
+ * The tasks which save the space cache and inode cache may also
+ * update ->aborted, check it.
+ */
+ if (unlikely(ACCESS_ONCE(cur_trans->aborted))) {
+ ret = cur_trans->aborted;
+ mutex_unlock(&root->fs_info->tree_log_mutex);
+ mutex_unlock(&root->fs_info->reloc_mutex);
+ goto cleanup_transaction;
+ }
+
btrfs_prepare_extent_commit(trans, root);
cur_trans = root->fs_info->running_transaction;