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authorZheng Yan <zheng.yan@oracle.com>2008-09-26 18:05:38 +0400
committerChris Mason <chris.mason@oracle.com>2008-09-26 18:05:38 +0400
commit5b21f2ed3f2947b5195b65c9fdbdd9e52904cc03 (patch)
tree9af8f539ac487c163f3207bc065767c3c8b37ae7 /fs/btrfs/inode-map.c
parente465768938f95388723b0fd3c50a0ae48173edb9 (diff)
downloadlinux-5b21f2ed3f2947b5195b65c9fdbdd9e52904cc03.tar.xz
Btrfs: extent_map and data=ordered fixes for space balancing
* Add an EXTENT_BOUNDARY state bit to keep the writepage code from merging data extents that are in the process of being relocated. This allows us to do accounting for them properly. * The balancing code relocates data extents indepdent of the underlying inode. The extent_map code was modified to properly account for things moving around (invalidating extent_map caches in the inode). * Don't take the drop_mutex in the create_subvol ioctl. It isn't required. * Fix walking of the ordered extent list to avoid races with sys_unlink * Change the lock ordering rules. Transaction start goes outside the drop_mutex. This allows btrfs_commit_transaction to directly drop the relocation trees. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/inode-map.c')
-rw-r--r--fs/btrfs/inode-map.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index cd6171c2da42..80038c5ef7cf 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -117,10 +117,14 @@ int btrfs_find_free_objectid(struct btrfs_trans_handle *trans,
*objectid = last_ino;
goto found;
}
+ } else if (key.objectid > search_start) {
+ *objectid = search_start;
+ goto found;
}
}
if (key.objectid >= BTRFS_LAST_FREE_OBJECTID)
break;
+
start_found = 1;
last_ino = key.objectid + 1;
path->slots[0]++;