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Commit eb70c0ce authored by Yan, Zheng's avatar Yan, Zheng Committed by Sage Weil
Browse files

ceph: forbid mandatory file lock 



Signed-off-by: default avatarYan, Zheng <zheng.z.yan@intel.com>
parent 0e8e95d6

fs/ceph/locks.c

+12 −0
Original line number Diff line number Diff line
@@ -87,6 +87,12 @@ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) 
	u8 wait = 0;

	u16 op = CEPH_MDS_OP_SETFILELOCK;



	if (!(fl->fl_flags & FL_POSIX))

		return -ENOLCK;

	/* No mandatory locks */

	if (__mandatory_lock(file->f_mapping->host) && fl->fl_type != F_UNLCK)

		return -ENOLCK;



	fl->fl_nspid = get_pid(task_tgid(current));

	dout("ceph_lock, fl_pid:%d", fl->fl_pid);
@@ -133,6 +139,12 @@ int ceph_flock(struct file *file, int cmd, struct file_lock *fl) 
	int err;

	u8 wait = 0;



	if (!(fl->fl_flags & FL_FLOCK))

		return -ENOLCK;

	/* No mandatory locks */

	if (__mandatory_lock(file->f_mapping->host) && fl->fl_type != F_UNLCK)

		return -ENOLCK;



	fl->fl_nspid = get_pid(task_tgid(current));

	dout("ceph_flock, fl_pid:%d", fl->fl_pid);