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Btrfs: notreelog mount option

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Add a 'notreelog' mount option to disable the tree log (used by fsync,
O_SYNC writes).  This is much slower, but the tree logging produces
inconsistent views into the FS for ceph.

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Sage Weil
2009-04-02 16:49:40 -04:00
committed by Chris Mason
parent a9572a15a8
commit 3a5e14048a
3 changed files with 15 additions and 1 deletions
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5
fs/btrfs/tree-log.c
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@ -2898,6 +2898,11 @@ int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
sb = inode->i_sb;
if (btrfs_test_opt(root, NOTREELOG)) {
ret = 1;
goto end_no_trans;
}
if (root->fs_info->last_trans_log_full_commit >
root->fs_info->last_trans_committed) {
ret = 1;