File: [Development] / linux-2.6-xfs / fs / xfs / xfs_dmapi.h (download)
Revision 1.10, Thu Jul 20 18:16:11 2000 UTC (17 years, 3 months ago) by roehrich
Branch: MAIN
Changes since 1.9: +8 -8
lines
update some of the prototypes for the xfs side of dmapi
update some prototypes
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/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 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.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
*/
#ifndef _FS_XFS_DMAPI_H
#define _FS_XFS_DMAPI_H
#ident "$Revision: 1.9 $"
#include <linux/xfs_cred.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_"
#ifdef _KERNEL
/* Defines for determining if an event message should be sent. */
#define DM_EVENT_ENABLED(vfsp, ip, event) ( \
((vfsp)->vfs_flag & VFS_DMI) && \
( ((ip)->i_d.di_dmevmask & (1 << event)) || \
((ip)->i_mount->m_dmevmask & (1 << event)) ) \
)
#define DM_EVENT_ENABLED_IO(vfsp, io, event) ( \
((vfsp)->vfs_flag & VFS_DMI) && \
( ((io)->io_dmevmask & (1 << event)) || \
((io)->io_mount->m_dmevmask & (1 << event)) ) \
)
/*
* Macros to turn caller specified delay/block flags into
* dm_send_xxxx_event flag DM_FLAGS_NDELAY.
*/
#define UIO_DELAY_FLAG(uiop) ((uiop->uio_fmode&(FNDELAY|FNONBLOCK)) ? \
DM_FLAGS_NDELAY : 0)
#define AT_DELAY_FLAG(f) ((f&ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0)
extern int
xfs_dm_send_data_event(
dm_eventtype_t event,
bhv_desc_t *bdp,
xfs_off_t offset,
size_t length,
int flags,
vrwlock_t *locktype);
extern int
xfs_dm_send_create_event(
bhv_desc_t *dir_bdp,
char *name,
mode_t new_mode,
int *good_event_sent);
extern int
xfs_dm_fcntl(
bhv_desc_t *bdp,
void *arg,
int flags,
xfs_off_t offset,
cred_t *credp,
int *rvalp);
extern int
xfs_dm_mapevent(
bhv_desc_t *bdp,
int flags,
xfs_off_t offset,
dm_fcntl_t *dmfcntlp);
/*
* Function defined in xfs_vnodeops.c used by DMAPI as well as by xfs_vnodeops.c
*/
extern int
xfs_set_dmattrs(
bhv_desc_t *bdp,
u_int evmask,
u_int16_t state,
cred_t *credp);
#endif /* _KERNEL */
#endif /* _FS_XFS_DMAPI_H */