diff options
Diffstat (limited to 'sys/gnu/fs/xfs/xfs_log.h')
| -rw-r--r-- | sys/gnu/fs/xfs/xfs_log.h | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/sys/gnu/fs/xfs/xfs_log.h b/sys/gnu/fs/xfs/xfs_log.h deleted file mode 100644 index eacb3d4..0000000 --- a/sys/gnu/fs/xfs/xfs_log.h +++ /dev/null @@ -1,192 +0,0 @@ -/* - * Copyright (c) 2000-2003,2005 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_LOG_H__ -#define __XFS_LOG_H__ - -/* get lsn fields */ - -#define CYCLE_LSN(lsn) ((uint)((lsn)>>32)) -#define BLOCK_LSN(lsn) ((uint)(lsn)) -/* this is used in a spot where we might otherwise double-endian-flip */ -#define CYCLE_LSN_DISK(lsn) (((uint *)&(lsn))[0]) - -#ifdef __KERNEL__ -/* - * By comparing each component, we don't have to worry about extra - * endian issues in treating two 32 bit numbers as one 64 bit number - */ -static inline xfs_lsn_t _lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2) -{ - if (CYCLE_LSN(lsn1) != CYCLE_LSN(lsn2)) - return (CYCLE_LSN(lsn1)<CYCLE_LSN(lsn2))? -999 : 999; - - if (BLOCK_LSN(lsn1) != BLOCK_LSN(lsn2)) - return (BLOCK_LSN(lsn1)<BLOCK_LSN(lsn2))? -999 : 999; - - return 0; -} - -#define XFS_LSN_CMP(x,y) _lsn_cmp(x,y) - -/* - * Macros, structures, prototypes for interface to the log manager. - */ - -/* - * Flags to xfs_log_mount - */ -#define XFS_LOG_RECOVER 0x1 - -/* - * Flags to xfs_log_done() - */ -#define XFS_LOG_REL_PERM_RESERV 0x1 - - -/* - * Flags to xfs_log_reserve() - * - * XFS_LOG_SLEEP: If space is not available, sleep (default) - * XFS_LOG_NOSLEEP: If space is not available, return error - * XFS_LOG_PERM_RESERV: Permanent reservation. When writes are - * performed against this type of reservation, the reservation - * is not decreased. Long running transactions should use this. - */ -#define XFS_LOG_SLEEP 0x0 -#define XFS_LOG_NOSLEEP 0x1 -#define XFS_LOG_PERM_RESERV 0x2 -#define XFS_LOG_RESV_ALL (XFS_LOG_NOSLEEP|XFS_LOG_PERM_RESERV) - - -/* - * Flags to xfs_log_force() - * - * XFS_LOG_SYNC: Synchronous force in-core log to disk - * XFS_LOG_FORCE: Start in-core log write now. - * XFS_LOG_URGE: Start write within some window of time. - * - * Note: Either XFS_LOG_FORCE or XFS_LOG_URGE must be set. - */ -#define XFS_LOG_SYNC 0x1 -#define XFS_LOG_FORCE 0x2 -#define XFS_LOG_URGE 0x4 - -#endif /* __KERNEL__ */ - - -/* Log Clients */ -#define XFS_TRANSACTION 0x69 -#define XFS_VOLUME 0x2 -#define XFS_LOG 0xaa - - -/* Region types for iovec's i_type */ -#define XLOG_REG_TYPE_BFORMAT 1 -#define XLOG_REG_TYPE_BCHUNK 2 -#define XLOG_REG_TYPE_EFI_FORMAT 3 -#define XLOG_REG_TYPE_EFD_FORMAT 4 -#define XLOG_REG_TYPE_IFORMAT 5 -#define XLOG_REG_TYPE_ICORE 6 -#define XLOG_REG_TYPE_IEXT 7 -#define XLOG_REG_TYPE_IBROOT 8 -#define XLOG_REG_TYPE_ILOCAL 9 -#define XLOG_REG_TYPE_IATTR_EXT 10 -#define XLOG_REG_TYPE_IATTR_BROOT 11 -#define XLOG_REG_TYPE_IATTR_LOCAL 12 -#define XLOG_REG_TYPE_QFORMAT 13 -#define XLOG_REG_TYPE_DQUOT 14 -#define XLOG_REG_TYPE_QUOTAOFF 15 -#define XLOG_REG_TYPE_LRHEADER 16 -#define XLOG_REG_TYPE_UNMOUNT 17 -#define XLOG_REG_TYPE_COMMIT 18 -#define XLOG_REG_TYPE_TRANSHDR 19 -#define XLOG_REG_TYPE_MAX 19 - -#define XLOG_VEC_SET_TYPE(vecp, t) ((vecp)->i_type = (t)) - -typedef struct xfs_log_iovec { - xfs_caddr_t i_addr; /* beginning address of region */ - int i_len; /* length in bytes of region */ - uint i_type; /* type of region */ -} xfs_log_iovec_t; - -typedef void* xfs_log_ticket_t; - -/* - * Structure used to pass callback function and the function's argument - * to the log manager. - */ -typedef struct xfs_log_callback { - struct xfs_log_callback *cb_next; - void (*cb_func)(void *, int); - void *cb_arg; -} xfs_log_callback_t; - - -#ifdef __KERNEL__ -/* Log manager interfaces */ -struct xfs_mount; -xfs_lsn_t xfs_log_done(struct xfs_mount *mp, - xfs_log_ticket_t ticket, - void **iclog, - uint flags); -int _xfs_log_force(struct xfs_mount *mp, - xfs_lsn_t lsn, - uint flags, - int *log_forced); -#define xfs_log_force(mp, lsn, flags) \ - _xfs_log_force(mp, lsn, flags, NULL); -int xfs_log_mount(struct xfs_mount *mp, - struct xfs_buftarg *log_target, - xfs_daddr_t start_block, - int num_bblocks); -int xfs_log_mount_finish(struct xfs_mount *mp, int); -void xfs_log_move_tail(struct xfs_mount *mp, - xfs_lsn_t tail_lsn); -int xfs_log_notify(struct xfs_mount *mp, - void *iclog, - xfs_log_callback_t *callback_entry); -int xfs_log_release_iclog(struct xfs_mount *mp, - void *iclog_hndl); -int xfs_log_reserve(struct xfs_mount *mp, - int length, - int count, - xfs_log_ticket_t *ticket, - __uint8_t clientid, - uint flags, - uint t_type); -int xfs_log_write(struct xfs_mount *mp, - xfs_log_iovec_t region[], - int nentries, - xfs_log_ticket_t ticket, - xfs_lsn_t *start_lsn); -int xfs_log_unmount(struct xfs_mount *mp); -int xfs_log_unmount_write(struct xfs_mount *mp); -void xfs_log_unmount_dealloc(struct xfs_mount *mp); -int xfs_log_force_umount(struct xfs_mount *mp, int logerror); -int xfs_log_need_covered(struct xfs_mount *mp); - -void xlog_iodone(struct xfs_buf *); - -#endif - - -extern int xlog_debug; /* set to 1 to enable real log */ - - -#endif /* __XFS_LOG_H__ */ |
