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Revision 9280be24dc9c7aaee230de3ed33f8357386de9a2 authored by Yan, Zheng on 14 October 2014, 02:33:35 UTC, committed by Ilya Dryomov on 17 December 2014, 17:09:49 UTC 
ceph: fix file lock interruption
 
When a lock operation is interrupted, current code sends a unlock request to
MDS to undo the lock operation. This method does not work as expected because
the unlock request can drop locks that have already been acquired.

The fix is use the newly introduced CEPH_LOCK_FCNTL_INTR/CEPH_LOCK_FLOCK_INTR
requests to interrupt blocked file lock request. These requests do not drop
locks that have alread been acquired, they only interrupt blocked file lock
request.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
1 parent b2776bf
Raw File
xfs_iomap.h 
/*
 * Copyright (c) 2003-2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef __XFS_IOMAP_H__
#define __XFS_IOMAP_H__

struct xfs_inode;
struct xfs_bmbt_irec;

int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t,
			struct xfs_bmbt_irec *, int);
int xfs_iomap_write_delay(struct xfs_inode *, xfs_off_t, size_t,
			struct xfs_bmbt_irec *);
int xfs_iomap_write_allocate(struct xfs_inode *, xfs_off_t,
			struct xfs_bmbt_irec *);
int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, size_t);

#endif /* __XFS_IOMAP_H__*/
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