| /* |
| * Copyright (c) 2000-2006 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_SYNC_H |
| #define XFS_SYNC_H 1 |
| |
| struct xfs_mount; |
| |
| typedef struct bhv_vfs_sync_work { |
| struct list_head w_list; |
| struct xfs_mount *w_mount; |
| void *w_data; /* syncer routine argument */ |
| void (*w_syncer)(struct xfs_mount *, void *); |
| } bhv_vfs_sync_work_t; |
| |
| #define SYNC_ATTR 0x0001 /* sync attributes */ |
| #define SYNC_CLOSE 0x0002 /* close file system down */ |
| #define SYNC_DELWRI 0x0004 /* look at delayed writes */ |
| #define SYNC_WAIT 0x0008 /* wait for i/o to complete */ |
| #define SYNC_BDFLUSH 0x0010 /* BDFLUSH is calling -- don't block */ |
| #define SYNC_FSDATA 0x0020 /* flush fs data (e.g. superblocks) */ |
| #define SYNC_REFCACHE 0x0040 /* prune some of the nfs ref cache */ |
| #define SYNC_REMOUNT 0x0080 /* remount readonly, no dummy LRs */ |
| #define SYNC_IOWAIT 0x0100 /* wait for all I/O to complete */ |
| |
| /* |
| * When remounting a filesystem read-only or freezing the filesystem, |
| * we have two phases to execute. This first phase is syncing the data |
| * before we quiesce the fielsystem, and the second is flushing all the |
| * inodes out after we've waited for all the transactions created by |
| * the first phase to complete. The second phase uses SYNC_INODE_QUIESCE |
| * to ensure that the inodes are written to their location on disk |
| * rather than just existing in transactions in the log. This means |
| * after a quiesce there is no log replay required to write the inodes |
| * to disk (this is the main difference between a sync and a quiesce). |
| */ |
| #define SYNC_DATA_QUIESCE (SYNC_DELWRI|SYNC_FSDATA|SYNC_WAIT|SYNC_IOWAIT) |
| #define SYNC_INODE_QUIESCE (SYNC_REMOUNT|SYNC_ATTR|SYNC_WAIT) |
| |
| int xfs_syncd_init(struct xfs_mount *mp); |
| void xfs_syncd_stop(struct xfs_mount *mp); |
| |
| int xfs_sync(struct xfs_mount *mp, int flags); |
| int xfs_syncsub(struct xfs_mount *mp, int flags, int *bypassed); |
| |
| void xfs_flush_inode(struct xfs_inode *ip); |
| void xfs_flush_device(struct xfs_inode *ip); |
| |
| #endif |