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authorMiao Xie <miaox@cn.fujitsu.com>2011-02-18 09:21:17 +0000
committerChris Mason <chris.mason@oracle.com>2011-03-10 11:21:49 -0500
commit7e6b6465e6efbca3985258996be9c189da96c8bf (patch)
treed4cde91d45865effa20fca9a789813321808c129 /fs/btrfs
parentb4966b7770349deb05e3dd2bd2c65d2d044abbbb (diff)
downloadlinux-7e6b6465e6efbca3985258996be9c189da96c8bf.tar.bz2
btrfs: fix not enough reserved space
btrfs_link() will insert 3 items(inode ref, dir name item and dir index item) into the b+ tree and update 2 items(its inode, and parent's inode) in the b+ tree. So we should reserve space for these 5 items, not 3 items. Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/inode.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e7a8303328b2..db67821ccac2 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4823,10 +4823,11 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
goto fail;
/*
- * 1 item for inode ref
+ * 2 items for inode and inode ref
* 2 items for dir items
+ * 1 item for parent inode
*/
- trans = btrfs_start_transaction(root, 3);
+ trans = btrfs_start_transaction(root, 5);
if (IS_ERR(trans)) {
err = PTR_ERR(trans);
goto fail;