NFS: Don't hold the inode lock across fsync()

Commits are no longer required to be serialised.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 29d7477..249262b 100644 (file)
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -277,11 +277,9 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
                ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
                if (ret != 0)
                        break;
-               inode_lock(inode);
                ret = nfs_file_fsync_commit(file, start, end, datasync);
                if (!ret)
                        ret = pnfs_sync_inode(inode, !!datasync);
-               inode_unlock(inode);
                /*
                 * If nfs_file_fsync_commit detected a server reboot, then
                 * resend all dirty pages that might have been covered by