X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_log_priv.h;h=9bd3cdf11a87068db1b773b5afabb2ea0a5bc913;hb=refs%2Fheads%2Fvserver;hp=7d91f70bd7af05b9f0926b245570dfd2b263c72a;hpb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;p=linux-2.6.git diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index 7d91f70bd..9bd3cdf11 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -1,33 +1,19 @@ /* - * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. + * 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 version 2 of the GNU General Public License as + * 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. + * 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. * - * 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/ + * 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_PRIV_H__ #define __XFS_LOG_PRIV_H__ @@ -35,6 +21,7 @@ struct xfs_buf; struct ktrace; struct log; +struct xlog_ticket; struct xfs_buf_cancel; struct xfs_mount; @@ -45,7 +32,6 @@ struct xfs_mount; #define XLOG_MIN_ICLOGS 2 #define XLOG_MED_ICLOGS 4 #define XLOG_MAX_ICLOGS 8 -#define XLOG_CALLBACK_SIZE 10 #define XLOG_HEADER_MAGIC_NUM 0xFEEDbabe /* Invalid cycle number */ #define XLOG_VERSION_1 1 #define XLOG_VERSION_2 2 /* Large IClogs, Log sunit */ @@ -74,17 +60,17 @@ struct xfs_mount; * set lsns */ -#define ASSIGN_LSN_CYCLE(lsn,cycle,arch) \ - INT_SET(((uint *)&(lsn))[LSN_FIELD_CYCLE(arch)], arch, (cycle)); -#define ASSIGN_LSN_BLOCK(lsn,block,arch) \ - INT_SET(((uint *)&(lsn))[LSN_FIELD_BLOCK(arch)], arch, (block)); -#define ASSIGN_ANY_LSN(lsn,cycle,block,arch) \ +#define ASSIGN_ANY_LSN_HOST(lsn,cycle,block) \ { \ - ASSIGN_LSN_CYCLE(lsn,cycle,arch); \ - ASSIGN_LSN_BLOCK(lsn,block,arch); \ + (lsn) = ((xfs_lsn_t)(cycle)<<32)|(block); \ } -#define ASSIGN_LSN(lsn,log,arch) \ - ASSIGN_ANY_LSN(lsn,(log)->l_curr_cycle,(log)->l_curr_block,arch); +#define ASSIGN_ANY_LSN_DISK(lsn,cycle,block) \ + { \ + INT_SET(((uint *)&(lsn))[0], ARCH_CONVERT, (cycle)); \ + INT_SET(((uint *)&(lsn))[1], ARCH_CONVERT, (block)); \ + } +#define ASSIGN_LSN(lsn,log) \ + ASSIGN_ANY_LSN_DISK(lsn,(log)->l_curr_cycle,(log)->l_curr_block); #define XLOG_SET(f,b) (((f) & (b)) == (b)) @@ -112,7 +98,7 @@ struct xfs_mount; * this has endian issues, of course. */ -#if __BYTE_ORDER == __LITTLE_ENDIAN +#ifndef XFS_NATIVE_HOST #define GET_CLIENT_ID(i,arch) \ ((i) & 0xff) #else @@ -120,77 +106,6 @@ struct xfs_mount; ((i) >> 24) #endif -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XLOG_GRANT_SUB_SPACE) -void xlog_grant_sub_space(struct log *log, int bytes, int type); -#define XLOG_GRANT_SUB_SPACE(log,bytes,type) \ - xlog_grant_sub_space(log,bytes,type) -#else -#define XLOG_GRANT_SUB_SPACE(log,bytes,type) \ - { \ - if (type == 'w') { \ - (log)->l_grant_write_bytes -= (bytes); \ - if ((log)->l_grant_write_bytes < 0) { \ - (log)->l_grant_write_bytes += (log)->l_logsize; \ - (log)->l_grant_write_cycle--; \ - } \ - } else { \ - (log)->l_grant_reserve_bytes -= (bytes); \ - if ((log)->l_grant_reserve_bytes < 0) { \ - (log)->l_grant_reserve_bytes += (log)->l_logsize;\ - (log)->l_grant_reserve_cycle--; \ - } \ - } \ - } -#endif -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XLOG_GRANT_ADD_SPACE) -void xlog_grant_add_space(struct log *log, int bytes, int type); -#define XLOG_GRANT_ADD_SPACE(log,bytes,type) \ - xlog_grant_add_space(log,bytes,type) -#else -#define XLOG_GRANT_ADD_SPACE(log,bytes,type) \ - { \ - if (type == 'w') { \ - (log)->l_grant_write_bytes += (bytes); \ - if ((log)->l_grant_write_bytes > (log)->l_logsize) { \ - (log)->l_grant_write_bytes -= (log)->l_logsize; \ - (log)->l_grant_write_cycle++; \ - } \ - } else { \ - (log)->l_grant_reserve_bytes += (bytes); \ - if ((log)->l_grant_reserve_bytes > (log)->l_logsize) { \ - (log)->l_grant_reserve_bytes -= (log)->l_logsize;\ - (log)->l_grant_reserve_cycle++; \ - } \ - } \ - } -#endif -#define XLOG_INS_TICKETQ(q,tic) \ - { \ - if (q) { \ - (tic)->t_next = (q); \ - (tic)->t_prev = (q)->t_prev; \ - (q)->t_prev->t_next = (tic); \ - (q)->t_prev = (tic); \ - } else { \ - (tic)->t_prev = (tic)->t_next = (tic); \ - (q) = (tic); \ - } \ - (tic)->t_flags |= XLOG_TIC_IN_Q; \ - } -#define XLOG_DEL_TICKETQ(q,tic) \ - { \ - if ((tic) == (tic)->t_next) { \ - (q) = NULL; \ - } else { \ - (q) = (tic)->t_next; \ - (tic)->t_next->t_prev = (tic)->t_prev; \ - (tic)->t_prev->t_next = (tic)->t_next; \ - } \ - (tic)->t_next = (tic)->t_prev = NULL; \ - (tic)->t_flags &= ~XLOG_TIC_IN_Q; \ - } - - #define GRANT_LOCK(log) mutex_spinlock(&(log)->l_grant_lock) #define GRANT_UNLOCK(log, s) mutex_spinunlock(&(log)->l_grant_lock, s) #define LOG_LOCK(log) mutex_spinlock(&(log)->l_icloglock) @@ -233,9 +148,6 @@ void xlog_grant_add_space(struct log *log, int bytes, int type); #define XLOG_WAS_CONT_TRANS 0x08 /* Cont this trans into new region */ #define XLOG_END_TRANS 0x10 /* End a continued transaction */ #define XLOG_UNMOUNT_TRANS 0x20 /* Unmount a filesystem transaction */ -#define XLOG_SKIP_TRANS (XLOG_COMMIT_TRANS | XLOG_CONTINUE_TRANS | \ - XLOG_WAS_CONT_TRANS | XLOG_END_TRANS | \ - XLOG_UNMOUNT_TRANS) #ifdef __KERNEL__ /* @@ -335,18 +247,57 @@ typedef __uint32_t xlog_tid_t; #define XLOG_COVER_OPS 5 + +/* Ticket reservation region accounting */ +#define XLOG_TIC_LEN_MAX 15 +#define XLOG_TIC_RESET_RES(t) ((t)->t_res_num = \ + (t)->t_res_arr_sum = (t)->t_res_num_ophdrs = 0) +#define XLOG_TIC_ADD_OPHDR(t) ((t)->t_res_num_ophdrs++) +#define XLOG_TIC_ADD_REGION(t, len, type) \ + do { \ + if ((t)->t_res_num == XLOG_TIC_LEN_MAX) { \ + /* add to overflow and start again */ \ + (t)->t_res_o_flow += (t)->t_res_arr_sum; \ + (t)->t_res_num = 0; \ + (t)->t_res_arr_sum = 0; \ + } \ + (t)->t_res_arr[(t)->t_res_num].r_len = (len); \ + (t)->t_res_arr[(t)->t_res_num].r_type = (type); \ + (t)->t_res_arr_sum += (len); \ + (t)->t_res_num++; \ + } while (0) + +/* + * Reservation region + * As would be stored in xfs_log_iovec but without the i_addr which + * we don't care about. + */ +typedef struct xlog_res { + uint r_len; /* region length :4 */ + uint r_type; /* region's transaction type :4 */ +} xlog_res_t; + typedef struct xlog_ticket { - sv_t t_sema; /* sleep on this semaphore :20 */ - struct xlog_ticket *t_next; /* : 4 */ - struct xlog_ticket *t_prev; /* : 4 */ - xlog_tid_t t_tid; /* transaction identifier : 4 */ - int t_curr_res; /* current reservation in bytes : 4 */ - int t_unit_res; /* unit reservation in bytes : 4 */ - __uint8_t t_ocnt; /* original count : 1 */ - __uint8_t t_cnt; /* current count : 1 */ - __uint8_t t_clientid; /* who does this belong to; : 1 */ - __uint8_t t_flags; /* properties of reservation : 1 */ + sv_t t_sema; /* sleep on this semaphore : 20 */ + struct xlog_ticket *t_next; /* :4|8 */ + struct xlog_ticket *t_prev; /* :4|8 */ + xlog_tid_t t_tid; /* transaction identifier : 4 */ + int t_curr_res; /* current reservation in bytes : 4 */ + int t_unit_res; /* unit reservation in bytes : 4 */ + char t_ocnt; /* original count : 1 */ + char t_cnt; /* current count : 1 */ + char t_clientid; /* who does this belong to; : 1 */ + char t_flags; /* properties of reservation : 1 */ + uint t_trans_type; /* transaction type : 4 */ + + /* reservation array fields */ + uint t_res_num; /* num in array : 4 */ + uint t_res_num_ophdrs; /* num op hdrs : 4 */ + uint t_res_arr_sum; /* array sum : 4 */ + uint t_res_o_flow; /* sum overflow : 4 */ + xlog_res_t t_res_arr[XLOG_TIC_LEN_MAX]; /* array of res : 8 * 15 */ } xlog_ticket_t; + #endif @@ -366,14 +317,10 @@ typedef struct xlog_op_header { #define XLOG_FMT_IRIX_BE 3 /* our fmt */ -#if __BYTE_ORDER == __LITTLE_ENDIAN -#define XLOG_FMT XLOG_FMT_LINUX_LE -#else -#if __BYTE_ORDER == __BIG_ENDIAN +#ifdef XFS_NATIVE_HOST #define XLOG_FMT XLOG_FMT_LINUX_BE #else -#error unknown byte order -#endif +#define XLOG_FMT XLOG_FMT_LINUX_LE #endif typedef struct xlog_rec_header { @@ -430,7 +377,6 @@ typedef struct xlog_iclog_fields { int ic_size; int ic_offset; int ic_refcnt; - int ic_roundoff; int ic_bwritecnt; ushort_t ic_state; char *ic_datap; /* pointer to iclog data */ @@ -462,7 +408,6 @@ typedef struct xlog_in_core { #define ic_size hic_fields.ic_size #define ic_offset hic_fields.ic_offset #define ic_refcnt hic_fields.ic_refcnt -#define ic_roundoff hic_fields.ic_roundoff #define ic_bwritecnt hic_fields.ic_bwritecnt #define ic_state hic_fields.ic_state #define ic_datap hic_fields.ic_datap @@ -498,7 +443,6 @@ typedef struct log { xfs_daddr_t l_logBBstart; /* start block of log */ int l_logsize; /* size of log in bytes */ int l_logBBsize; /* size of log in BB chunks */ - int l_roundoff; /* round off error of iclogs */ int l_curr_cycle; /* Cycle number of log writes */ int l_prev_cycle; /* Cycle number before last * block increment */ @@ -535,23 +479,22 @@ typedef struct log { * alignment mask */ } xlog_t; +#define XLOG_FORCED_SHUTDOWN(log) ((log)->l_flags & XLOG_IO_ERROR) + /* common routines */ extern xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp); -extern int xlog_find_head(xlog_t *log, xfs_daddr_t *head_blk); extern int xlog_find_tail(xlog_t *log, xfs_daddr_t *head_blk, - xfs_daddr_t *tail_blk, - int readonly); -extern int xlog_recover(xlog_t *log, int readonly); + xfs_daddr_t *tail_blk); +extern int xlog_recover(xlog_t *log); extern int xlog_recover_finish(xlog_t *log, int mfsi_flags); -extern void xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog); +extern void xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int); extern void xlog_recover_process_iunlinks(xlog_t *log); extern struct xfs_buf *xlog_get_bp(xlog_t *, int); extern void xlog_put_bp(struct xfs_buf *); extern int xlog_bread(xlog_t *, xfs_daddr_t, int, struct xfs_buf *); -extern xfs_caddr_t xlog_align(xlog_t *, xfs_daddr_t, int, struct xfs_buf *); /* iclog tracing */ #define XLOG_TRACE_GRAB_FLUSH 1 @@ -559,6 +502,12 @@ extern xfs_caddr_t xlog_align(xlog_t *, xfs_daddr_t, int, struct xfs_buf *); #define XLOG_TRACE_SLEEP_FLUSH 3 #define XLOG_TRACE_WAKE_FLUSH 4 +/* + * Unmount record type is used as a pseudo transaction type for the ticket. + * It's value must be outside the range of XFS_TRANS_* values. + */ +#define XLOG_UNMOUNT_REC_TYPE (-1U) + #endif /* __KERNEL__ */ #endif /* __XFS_LOG_PRIV_H__ */