#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 */
#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__
/*
/* Ticket reservation region accounting */
-#if defined(XFS_LOG_RES_DEBUG)
#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)
* we don't care about.
*/
typedef struct xlog_res {
- uint r_len;
- uint r_type;
+ uint r_len; /* region length :4 */
+ uint r_type; /* region's transaction type :4 */
} xlog_res_t;
-#else
-#define XLOG_TIC_RESET_RES(t)
-#define XLOG_TIC_ADD_OPHDR(t)
-#define XLOG_TIC_ADD_REGION(t, len, type)
-#endif
-
typedef struct xlog_ticket {
sv_t t_sema; /* sleep on this semaphore : 20 */
char t_flags; /* properties of reservation : 1 */
uint t_trans_type; /* transaction type : 4 */
-#if defined (XFS_LOG_RES_DEBUG)
/* reservation array fields */
uint t_res_num; /* num in array : 4 */
- xlog_res_t t_res_arr[XLOG_TIC_LEN_MAX]; /* array of res : X */
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 */
-#endif
+ xlog_res_t t_res_arr[XLOG_TIC_LEN_MAX]; /* array of res : 8 * 15 */
} xlog_ticket_t;
#endif
#define XLOG_FORCED_SHUTDOWN(log) ((log)->l_flags & XLOG_IO_ERROR)
-#define XLOG_GRANT_SUB_SPACE(log,bytes,type) \
- xlog_grant_sub_space(log,bytes,type)
-static inline void xlog_grant_sub_space(struct log *log, int bytes, int 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--; \
- } \
- } \
-}
-
-#define XLOG_GRANT_ADD_SPACE(log,bytes,type) \
- xlog_grant_add_space(log,bytes,type)
-static inline void
-xlog_grant_add_space(struct log *log, int bytes, int 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++; \
- } \
- } \
-}
-
-#define XLOG_INS_TICKETQ(q, tic) xlog_ins_ticketq(q, tic)
-static inline void
-xlog_ins_ticketq(struct xlog_ticket *q, struct xlog_ticket *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) xlog_del_ticketq(q, tic)
-static inline void
-xlog_del_ticketq(struct xlog_ticket *q, struct xlog_ticket *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; \
-}
/* common routines */
extern xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp);
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, int);
extern void xlog_recover_process_iunlinks(xlog_t *log);
#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__ */
projects / powerpc.git / blobdiff