[XFS] 929956 add log debugging and tracing info
SGI-PV: 931456
SGI-Modid: xfs-linux:xfs-kern:23155a
Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 1a1d452..eb7fdc6 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -335,18 +335,66 @@
#define XLOG_COVER_OPS 5
+
+/* 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)
+#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;
+ uint r_type;
+} 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 */
- 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 */
+
+#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_ticket_t;
+
#endif
