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提交 e70bea5f 编写于 作者: J Josef Bacik

Btrfs: fix the amount of space reserved for unlink

Our unlink reservations were a bit much, we were reserving 10 and I only count 8
possible items we're touching, so comment what we're reserving for and fix the
count value.  Thanks,
Signed-off-by: NJosef Bacik <josef@redhat.com>
上级 4b91c14f
...@@ -2758,7 +2758,16 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir, ...@@ -2758,7 +2758,16 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
u64 ino = btrfs_ino(inode); u64 ino = btrfs_ino(inode);
u64 dir_ino = btrfs_ino(dir); u64 dir_ino = btrfs_ino(dir);
trans = btrfs_start_transaction(root, 10); /*
* 1 for the possible orphan item
* 1 for the dir item
* 1 for the dir index
* 1 for the inode ref
* 1 for the inode ref in the tree log
* 2 for the dir entries in the log
* 1 for the inode
*/
trans = btrfs_start_transaction(root, 8);
if (!IS_ERR(trans) || PTR_ERR(trans) != -ENOSPC) if (!IS_ERR(trans) || PTR_ERR(trans) != -ENOSPC)
return trans; return trans;
......
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