171 lines
4.9 KiB
C
171 lines
4.9 KiB
C
/*
|
|
* Copyright (c) 2000-2005 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_DMAPI_H__
|
|
#define __XFS_DMAPI_H__
|
|
|
|
/* Values used to define the on-disk version of dm_attrname_t. All
|
|
* on-disk attribute names start with the 8-byte string "SGI_DMI_".
|
|
*
|
|
* In the on-disk inode, DMAPI attribute names consist of the user-provided
|
|
* name with the DMATTR_PREFIXSTRING pre-pended. This string must NEVER be
|
|
* changed.
|
|
*/
|
|
|
|
#define DMATTR_PREFIXLEN 8
|
|
#define DMATTR_PREFIXSTRING "SGI_DMI_"
|
|
|
|
typedef enum {
|
|
DM_EVENT_INVALID = -1,
|
|
DM_EVENT_CANCEL = 0, /* not supported */
|
|
DM_EVENT_MOUNT = 1,
|
|
DM_EVENT_PREUNMOUNT = 2,
|
|
DM_EVENT_UNMOUNT = 3,
|
|
DM_EVENT_DEBUT = 4, /* not supported */
|
|
DM_EVENT_CREATE = 5,
|
|
DM_EVENT_CLOSE = 6, /* not supported */
|
|
DM_EVENT_POSTCREATE = 7,
|
|
DM_EVENT_REMOVE = 8,
|
|
DM_EVENT_POSTREMOVE = 9,
|
|
DM_EVENT_RENAME = 10,
|
|
DM_EVENT_POSTRENAME = 11,
|
|
DM_EVENT_LINK = 12,
|
|
DM_EVENT_POSTLINK = 13,
|
|
DM_EVENT_SYMLINK = 14,
|
|
DM_EVENT_POSTSYMLINK = 15,
|
|
DM_EVENT_READ = 16,
|
|
DM_EVENT_WRITE = 17,
|
|
DM_EVENT_TRUNCATE = 18,
|
|
DM_EVENT_ATTRIBUTE = 19,
|
|
DM_EVENT_DESTROY = 20,
|
|
DM_EVENT_NOSPACE = 21,
|
|
DM_EVENT_USER = 22,
|
|
DM_EVENT_MAX = 23
|
|
} dm_eventtype_t;
|
|
#define HAVE_DM_EVENTTYPE_T
|
|
|
|
typedef enum {
|
|
DM_RIGHT_NULL,
|
|
DM_RIGHT_SHARED,
|
|
DM_RIGHT_EXCL
|
|
} dm_right_t;
|
|
#define HAVE_DM_RIGHT_T
|
|
|
|
/* Defines for determining if an event message should be sent. */
|
|
#ifdef HAVE_DMAPI
|
|
#define DM_EVENT_ENABLED(ip, event) ( \
|
|
unlikely ((ip)->i_mount->m_flags & XFS_MOUNT_DMAPI) && \
|
|
( ((ip)->i_d.di_dmevmask & (1 << event)) || \
|
|
((ip)->i_mount->m_dmevmask & (1 << event)) ) \
|
|
)
|
|
#else
|
|
#define DM_EVENT_ENABLED(ip, event) (0)
|
|
#endif
|
|
|
|
#define DM_XFS_VALID_FS_EVENTS ( \
|
|
(1 << DM_EVENT_PREUNMOUNT) | \
|
|
(1 << DM_EVENT_UNMOUNT) | \
|
|
(1 << DM_EVENT_NOSPACE) | \
|
|
(1 << DM_EVENT_DEBUT) | \
|
|
(1 << DM_EVENT_CREATE) | \
|
|
(1 << DM_EVENT_POSTCREATE) | \
|
|
(1 << DM_EVENT_REMOVE) | \
|
|
(1 << DM_EVENT_POSTREMOVE) | \
|
|
(1 << DM_EVENT_RENAME) | \
|
|
(1 << DM_EVENT_POSTRENAME) | \
|
|
(1 << DM_EVENT_LINK) | \
|
|
(1 << DM_EVENT_POSTLINK) | \
|
|
(1 << DM_EVENT_SYMLINK) | \
|
|
(1 << DM_EVENT_POSTSYMLINK) | \
|
|
(1 << DM_EVENT_ATTRIBUTE) | \
|
|
(1 << DM_EVENT_DESTROY) )
|
|
|
|
/* Events valid in dm_set_eventlist() when called with a file handle for
|
|
a regular file or a symlink. These events are persistent.
|
|
*/
|
|
|
|
#define DM_XFS_VALID_FILE_EVENTS ( \
|
|
(1 << DM_EVENT_ATTRIBUTE) | \
|
|
(1 << DM_EVENT_DESTROY) )
|
|
|
|
/* Events valid in dm_set_eventlist() when called with a file handle for
|
|
a directory. These events are persistent.
|
|
*/
|
|
|
|
#define DM_XFS_VALID_DIRECTORY_EVENTS ( \
|
|
(1 << DM_EVENT_CREATE) | \
|
|
(1 << DM_EVENT_POSTCREATE) | \
|
|
(1 << DM_EVENT_REMOVE) | \
|
|
(1 << DM_EVENT_POSTREMOVE) | \
|
|
(1 << DM_EVENT_RENAME) | \
|
|
(1 << DM_EVENT_POSTRENAME) | \
|
|
(1 << DM_EVENT_LINK) | \
|
|
(1 << DM_EVENT_POSTLINK) | \
|
|
(1 << DM_EVENT_SYMLINK) | \
|
|
(1 << DM_EVENT_POSTSYMLINK) | \
|
|
(1 << DM_EVENT_ATTRIBUTE) | \
|
|
(1 << DM_EVENT_DESTROY) )
|
|
|
|
/* Events supported by the XFS filesystem. */
|
|
#define DM_XFS_SUPPORTED_EVENTS ( \
|
|
(1 << DM_EVENT_MOUNT) | \
|
|
(1 << DM_EVENT_PREUNMOUNT) | \
|
|
(1 << DM_EVENT_UNMOUNT) | \
|
|
(1 << DM_EVENT_NOSPACE) | \
|
|
(1 << DM_EVENT_CREATE) | \
|
|
(1 << DM_EVENT_POSTCREATE) | \
|
|
(1 << DM_EVENT_REMOVE) | \
|
|
(1 << DM_EVENT_POSTREMOVE) | \
|
|
(1 << DM_EVENT_RENAME) | \
|
|
(1 << DM_EVENT_POSTRENAME) | \
|
|
(1 << DM_EVENT_LINK) | \
|
|
(1 << DM_EVENT_POSTLINK) | \
|
|
(1 << DM_EVENT_SYMLINK) | \
|
|
(1 << DM_EVENT_POSTSYMLINK) | \
|
|
(1 << DM_EVENT_READ) | \
|
|
(1 << DM_EVENT_WRITE) | \
|
|
(1 << DM_EVENT_TRUNCATE) | \
|
|
(1 << DM_EVENT_ATTRIBUTE) | \
|
|
(1 << DM_EVENT_DESTROY) )
|
|
|
|
|
|
/*
|
|
* Definitions used for the flags field on dm_send_*_event().
|
|
*/
|
|
|
|
#define DM_FLAGS_NDELAY 0x001 /* return EAGAIN after dm_pending() */
|
|
#define DM_FLAGS_UNWANTED 0x002 /* event not in fsys dm_eventset_t */
|
|
#define DM_FLAGS_IMUX 0x004 /* thread holds i_mutex */
|
|
#define DM_FLAGS_IALLOCSEM_RD 0x010 /* thread holds i_alloc_sem rd */
|
|
#define DM_FLAGS_IALLOCSEM_WR 0x020 /* thread holds i_alloc_sem wr */
|
|
|
|
/*
|
|
* Pull in platform specific event flags defines
|
|
*/
|
|
#include "xfs_dmapi_priv.h"
|
|
|
|
/*
|
|
* Macros to turn caller specified delay/block flags into
|
|
* dm_send_xxxx_event flag DM_FLAGS_NDELAY.
|
|
*/
|
|
|
|
#define FILP_DELAY_FLAG(filp) ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) ? \
|
|
DM_FLAGS_NDELAY : 0)
|
|
#define AT_DELAY_FLAG(f) ((f & XFS_ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0)
|
|
|
|
#endif /* __XFS_DMAPI_H__ */
|