[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>

9 files changed, 265 insertions, 22 deletions

diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index f5271b7b1e84..e74eaa7dd1bc 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -509,6 +509,7 @@ xfs_qm_qoff_logitem_format(xfs_qoff_logitem_t	*qf,
 
         log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
         log_vector->i_len = sizeof(xfs_qoff_logitem_t);
+        XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_QUOTAOFF);
         qf->qql_format.qf_size = 1;
 }
 
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 30b8285ad476..a264657acfd9 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -274,6 +274,7 @@ xfs_buf_item_format(
                        ((bip->bli_format.blf_map_size - 1) * sizeof(uint)));
         vecp->i_addr = (xfs_caddr_t)&bip->bli_format;
         vecp->i_len = base_size;
+        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BFORMAT);
         vecp++;
         nvecs = 1;
 
@@ -320,12 +321,14 @@ xfs_buf_item_format(
                         buffer_offset = first_bit * XFS_BLI_CHUNK;
                         vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
                         vecp->i_len = nbits * XFS_BLI_CHUNK;
+                        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
                         nvecs++;
                         break;
                 } else if (next_bit != last_bit + 1) {
                         buffer_offset = first_bit * XFS_BLI_CHUNK;
                         vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
                         vecp->i_len = nbits * XFS_BLI_CHUNK;
+                        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
                         nvecs++;
                         vecp++;
                         first_bit = next_bit;
@@ -337,6 +340,7 @@ xfs_buf_item_format(
                         buffer_offset = first_bit * XFS_BLI_CHUNK;
                         vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
                         vecp->i_len = nbits * XFS_BLI_CHUNK;
+                        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
 /* You would think we need to bump the nvecs here too, but we do not
  * this number is used by recovery, and it gets confused by the boundary
  * split here
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index db7cbd1bc857..cc7d1494a45d 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -107,6 +107,7 @@ xfs_efi_item_format(xfs_efi_log_item_t	*efip,
 
         log_vector->i_addr = (xfs_caddr_t)&(efip->efi_format);
         log_vector->i_len = size;
+        XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_EFI_FORMAT);
         ASSERT(size >= sizeof(xfs_efi_log_format_t));
 }
 
@@ -426,6 +427,7 @@ xfs_efd_item_format(xfs_efd_log_item_t	*efdp,
 
         log_vector->i_addr = (xfs_caddr_t)&(efdp->efd_format);
         log_vector->i_len = size;
+        XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_EFD_FORMAT);
         ASSERT(size >= sizeof(xfs_efd_log_format_t));
 }
 
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 0eed30f5cb19..276ec70eb7f9 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -248,6 +248,7 @@ xfs_inode_item_format(
 
         vecp->i_addr = (xfs_caddr_t)&iip->ili_format;
         vecp->i_len  = sizeof(xfs_inode_log_format_t);
+        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IFORMAT);
         vecp++;
         nvecs        = 1;
 
@@ -292,6 +293,7 @@ xfs_inode_item_format(
 
         vecp->i_addr = (xfs_caddr_t)&ip->i_d;
         vecp->i_len  = sizeof(xfs_dinode_core_t);
+        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ICORE);
         vecp++;
         nvecs++;
         iip->ili_format.ilf_fields |= XFS_ILOG_CORE;
@@ -349,6 +351,7 @@ xfs_inode_item_format(
                                 vecp->i_addr =
                                         (char *)(ip->i_df.if_u1.if_extents);
                                 vecp->i_len = ip->i_df.if_bytes;
+                                XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT);
                         } else
 #endif
                         {
@@ -367,6 +370,7 @@ xfs_inode_item_format(
                                 vecp->i_addr = (xfs_caddr_t)ext_buffer;
                                 vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
                                                 XFS_DATA_FORK);
+                                XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT);
                         }
                         ASSERT(vecp->i_len <= ip->i_df.if_bytes);
                         iip->ili_format.ilf_dsize = vecp->i_len;
@@ -384,6 +388,7 @@ xfs_inode_item_format(
                         ASSERT(ip->i_df.if_broot != NULL);
                         vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot;
                         vecp->i_len = ip->i_df.if_broot_bytes;
+                        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IBROOT);
                         vecp++;
                         nvecs++;
                         iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes;
@@ -409,6 +414,7 @@ xfs_inode_item_format(
                         ASSERT((ip->i_df.if_real_bytes == 0) ||
                                (ip->i_df.if_real_bytes == data_bytes));
                         vecp->i_len = (int)data_bytes;
+                        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ILOCAL);
                         vecp++;
                         nvecs++;
                         iip->ili_format.ilf_dsize = (unsigned)data_bytes;
@@ -486,6 +492,7 @@ xfs_inode_item_format(
                         vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
                                         XFS_ATTR_FORK);
 #endif
+                        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_EXT);
                         iip->ili_format.ilf_asize = vecp->i_len;
                         vecp++;
                         nvecs++;
@@ -500,6 +507,7 @@ xfs_inode_item_format(
                         ASSERT(ip->i_afp->if_broot != NULL);
                         vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot;
                         vecp->i_len = ip->i_afp->if_broot_bytes;
+                        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_BROOT);
                         vecp++;
                         nvecs++;
                         iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes;
@@ -523,6 +531,7 @@ xfs_inode_item_format(
                         ASSERT((ip->i_afp->if_real_bytes == 0) ||
                                (ip->i_afp->if_real_bytes == data_bytes));
                         vecp->i_len = (int)data_bytes;
+                        XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_LOCAL);
                         vecp++;
                         nvecs++;
                         iip->ili_format.ilf_asize = (unsigned)data_bytes;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 42975cb9e538..54a6f1142403 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -159,11 +159,15 @@ xfs_buftarg_t *xlog_target;
 void
 xlog_trace_loggrant(xlog_t *log, xlog_ticket_t *tic, xfs_caddr_t string)
 {
-        if (! log->l_grant_trace) {
-                log->l_grant_trace = ktrace_alloc(1024, KM_NOSLEEP);
-                if (! log->l_grant_trace)
+        unsigned long cnts;
+
+        if (!log->l_grant_trace) {
+                log->l_grant_trace = ktrace_alloc(2048, KM_NOSLEEP);
+                if (!log->l_grant_trace)
                         return;
         }
+        /* ticket counts are 1 byte each */
+        cnts = ((unsigned long)tic->t_ocnt) | ((unsigned long)tic->t_cnt) << 8;
 
         ktrace_enter(log->l_grant_trace,
                      (void *)tic,
@@ -178,10 +182,10 @@ xlog_trace_loggrant(xlog_t *log, xlog_ticket_t *tic, xfs_caddr_t string)
                      (void *)((unsigned long)CYCLE_LSN(log->l_tail_lsn)),
                      (void *)((unsigned long)BLOCK_LSN(log->l_tail_lsn)),
                      (void *)string,
-                     (void *)((unsigned long)13),
-                     (void *)((unsigned long)14),
-                     (void *)((unsigned long)15),
-                     (void *)((unsigned long)16));
+                     (void *)((unsigned long)tic->t_trans_type),
+                     (void *)cnts,
+                     (void *)((unsigned long)tic->t_curr_res),
+                     (void *)((unsigned long)tic->t_unit_res));
 }
 
 void
@@ -274,9 +278,11 @@ xfs_log_done(xfs_mount_t	*mp,
                  * Release ticket if not permanent reservation or a specifc
                  * request has been made to release a permanent reservation.
                  */
+                xlog_trace_loggrant(log, ticket, "xfs_log_done: (non-permanent)");
                 xlog_ungrant_log_space(log, ticket);
                 xlog_state_put_ticket(log, ticket);
         } else {
+                xlog_trace_loggrant(log, ticket, "xfs_log_done: (permanent)");
                 xlog_regrant_reserve_log_space(log, ticket);
         }
 
@@ -399,7 +405,8 @@ xfs_log_reserve(xfs_mount_t	 *mp,
                 int              cnt,
                 xfs_log_ticket_t *ticket,
                 __uint8_t        client,
-                uint             flags)
+                uint             flags,
+                uint             t_type)
 {
         xlog_t          *log = mp->m_log;
         xlog_ticket_t   *internal_ticket;
@@ -421,13 +428,19 @@ xfs_log_reserve(xfs_mount_t	 *mp,
         if (*ticket != NULL) {
                 ASSERT(flags & XFS_LOG_PERM_RESERV);
                 internal_ticket = (xlog_ticket_t *)*ticket;
+                xlog_trace_loggrant(log, internal_ticket, "xfs_log_reserve: existing ticket (permanent trans)");
                 xlog_grant_push_ail(mp, internal_ticket->t_unit_res);
                 retval = xlog_regrant_write_log_space(log, internal_ticket);
         } else {
                 /* may sleep if need to allocate more tickets */
                 internal_ticket = xlog_ticket_get(log, unit_bytes, cnt,
                                                   client, flags);
+                internal_ticket->t_trans_type = t_type;
                 *ticket = internal_ticket;
+                xlog_trace_loggrant(log, internal_ticket, 
+                        (internal_ticket->t_flags & XLOG_TIC_PERM_RESERV) ?
+                        "xfs_log_reserve: create new ticket (permanent trans)" :
+                        "xfs_log_reserve: create new ticket");
                 xlog_grant_push_ail(mp,
                                     (internal_ticket->t_unit_res *
                                      internal_ticket->t_cnt));
@@ -601,8 +614,9 @@ xfs_log_unmount_write(xfs_mount_t *mp)
         if (! (XLOG_FORCED_SHUTDOWN(log))) {
                 reg[0].i_addr = (void*)&magic;
                 reg[0].i_len  = sizeof(magic);
+                XLOG_VEC_SET_TYPE(&reg[0], XLOG_REG_TYPE_UNMOUNT);
 
-                error = xfs_log_reserve(mp, 600, 1, &tic, XFS_LOG, 0);
+                error = xfs_log_reserve(mp, 600, 1, &tic, XFS_LOG, 0, 0);
                 if (!error) {
                         /* remove inited flag */
                         ((xlog_ticket_t *)tic)->t_flags = 0;
@@ -1272,6 +1286,7 @@ xlog_commit_record(xfs_mount_t  *mp,
 
         reg[0].i_addr = NULL;
         reg[0].i_len = 0;
+        XLOG_VEC_SET_TYPE(&reg[0], XLOG_REG_TYPE_COMMIT);
 
         ASSERT_ALWAYS(iclog);
         if ((error = xlog_write(mp, reg, 1, ticket, commitlsnp,
@@ -1605,6 +1620,117 @@ xlog_state_finish_copy(xlog_t		*log,
 
 
 /*
+ * print out info relating to regions written which consume
+ * the reservation
+ */
+#if defined(XFS_LOG_RES_DEBUG)
+STATIC void
+xlog_print_tic_res(xfs_mount_t *mp, xlog_ticket_t *ticket)
+{
+        uint i;
+        uint ophdr_spc = ticket->t_res_num_ophdrs * (uint)sizeof(xlog_op_header_t);
+
+        /* match with XLOG_REG_TYPE_* in xfs_log.h */
+        static char *res_type_str[XLOG_REG_TYPE_MAX] = {
+            "bformat",
+            "bchunk",
+            "efi_format",
+            "efd_format",
+            "iformat",
+            "icore",
+            "iext",
+            "ibroot",
+            "ilocal",
+            "iattr_ext",
+            "iattr_broot",
+            "iattr_local",
+            "qformat",
+            "dquot",
+            "quotaoff",
+            "LR header",
+            "unmount",
+            "commit",
+            "trans header"
+        };
+        static char *trans_type_str[XFS_TRANS_TYPE_MAX] = {
+            "SETATTR_NOT_SIZE",
+            "SETATTR_SIZE",
+            "INACTIVE",
+            "CREATE",
+            "CREATE_TRUNC",
+            "TRUNCATE_FILE",
+            "REMOVE",
+            "LINK",
+            "RENAME",
+            "MKDIR",
+            "RMDIR",
+            "SYMLINK",
+            "SET_DMATTRS",
+            "GROWFS",
+            "STRAT_WRITE",
+            "DIOSTRAT",
+            "WRITE_SYNC",
+            "WRITEID",
+            "ADDAFORK",
+            "ATTRINVAL",
+            "ATRUNCATE",
+            "ATTR_SET",
+            "ATTR_RM",
+            "ATTR_FLAG",
+            "CLEAR_AGI_BUCKET",
+            "QM_SBCHANGE",
+            "DUMMY1",
+            "DUMMY2",
+            "QM_QUOTAOFF",
+            "QM_DQALLOC",
+            "QM_SETQLIM",
+            "QM_DQCLUSTER",
+            "QM_QINOCREATE",
+            "QM_QUOTAOFF_END",
+            "SB_UNIT",
+            "FSYNC_TS",
+            "GROWFSRT_ALLOC",
+            "GROWFSRT_ZERO",
+            "GROWFSRT_FREE",
+            "SWAPEXT"
+        };
+
+        xfs_fs_cmn_err(CE_WARN, mp,
+                        "xfs_log_write: reservation summary:\n"
+                        "  trans type  = %s (%u)\n"
+                        "  unit res    = %d bytes\n"
+                        "  current res = %d bytes\n"
+                        "  total reg   = %u bytes (o/flow = %u bytes)\n"
+                        "  ophdrs      = %u (ophdr space = %u bytes)\n"
+                        "  ophdr + reg = %u bytes\n"
+                        "  num regions = %u\n",
+                        ((ticket->t_trans_type <= 0 ||
+                          ticket->t_trans_type > XFS_TRANS_TYPE_MAX) ?
+                          "bad-trans-type" : trans_type_str[ticket->t_trans_type-1]),
+                        ticket->t_trans_type,
+                        ticket->t_unit_res,
+                        ticket->t_curr_res,
+                        ticket->t_res_arr_sum, ticket->t_res_o_flow,
+                        ticket->t_res_num_ophdrs, ophdr_spc,
+                        ticket->t_res_arr_sum + 
+                          ticket->t_res_o_flow + ophdr_spc,
+                        ticket->t_res_num);
+
+        for (i = 0; i < ticket->t_res_num; i++) {
+                uint r_type = ticket->t_res_arr[i].r_type; 
+                cmn_err(CE_WARN,
+                            "region[%u]: %s - %u bytes\n",
+                            i, 
+                            ((r_type <= 0 || r_type > XLOG_REG_TYPE_MAX) ?
+                            "bad-rtype" : res_type_str[r_type-1]),
+                            ticket->t_res_arr[i].r_len);
+        }
+}
+#else
+#define xlog_print_tic_res(mp, ticket)
+#endif
+
+/*
  * Write some region out to in-core log
  *
  * This will be called when writing externally provided regions or when
@@ -1677,16 +1803,21 @@ xlog_write(xfs_mount_t *	mp,
      * xlog_op_header_t and may need to be double word aligned.
      */
     len = 0;
-    if (ticket->t_flags & XLOG_TIC_INITED)     /* acct for start rec of xact */
+    if (ticket->t_flags & XLOG_TIC_INITED) {    /* acct for start rec of xact */
         len += sizeof(xlog_op_header_t);
+        XLOG_TIC_ADD_OPHDR(ticket);
+    }
 
     for (index = 0; index < nentries; index++) {
         len += sizeof(xlog_op_header_t);            /* each region gets >= 1 */
+        XLOG_TIC_ADD_OPHDR(ticket);
         len += reg[index].i_len;
+        XLOG_TIC_ADD_REGION(ticket, reg[index].i_len, reg[index].i_type);
     }
     contwr = *start_lsn = 0;
 
     if (ticket->t_curr_res < len) {
+        xlog_print_tic_res(mp, ticket);
 #ifdef DEBUG
         xlog_panic(
                 "xfs_log_write: reservation ran out. Need to up reservation");
@@ -1790,6 +1921,7 @@ xlog_write(xfs_mount_t *	mp,
                 len += sizeof(xlog_op_header_t); /* from splitting of region */
                 /* account for new log op header */
                 ticket->t_curr_res -= sizeof(xlog_op_header_t);
+                XLOG_TIC_ADD_OPHDR(ticket);
             }
             xlog_verify_dest_ptr(log, ptr);
 
@@ -2282,6 +2414,9 @@ restart:
          */
         if (log_offset == 0) {
                 ticket->t_curr_res -= log->l_iclog_hsize;
+                XLOG_TIC_ADD_REGION(ticket,
+                                    log->l_iclog_hsize,
+                                    XLOG_REG_TYPE_LRHEADER);
                 INT_SET(head->h_cycle, ARCH_CONVERT, log->l_curr_cycle);
                 ASSIGN_LSN(head->h_lsn, log);
                 ASSERT(log->l_curr_block >= 0);
@@ -2468,6 +2603,7 @@ xlog_regrant_write_log_space(xlog_t	   *log,
 #endif
 
         tic->t_curr_res = tic->t_unit_res;
+        XLOG_TIC_RESET_RES(tic);
 
         if (tic->t_cnt > 0)
                 return (0);
@@ -2608,6 +2744,7 @@ xlog_regrant_reserve_log_space(xlog_t	     *log,
         XLOG_GRANT_SUB_SPACE(log, ticket->t_curr_res, 'w');
         XLOG_GRANT_SUB_SPACE(log, ticket->t_curr_res, 'r');
         ticket->t_curr_res = ticket->t_unit_res;
+        XLOG_TIC_RESET_RES(ticket);
         xlog_trace_loggrant(log, ticket,
                             "xlog_regrant_reserve_log_space: sub current res");
         xlog_verify_grant_head(log, 1);
@@ -2624,6 +2761,7 @@ xlog_regrant_reserve_log_space(xlog_t	     *log,
         xlog_verify_grant_head(log, 0);
         GRANT_UNLOCK(log, s);
         ticket->t_curr_res = ticket->t_unit_res;
+        XLOG_TIC_RESET_RES(ticket);
 }       /* xlog_regrant_reserve_log_space */
 
 
@@ -3237,10 +3375,13 @@ xlog_ticket_get(xlog_t		*log,
         tic->t_tid              = (xlog_tid_t)((__psint_t)tic & 0xffffffff);
         tic->t_clientid         = client;
         tic->t_flags            = XLOG_TIC_INITED;
+        tic->t_trans_type       = 0;
         if (xflags & XFS_LOG_PERM_RESERV)
                 tic->t_flags |= XLOG_TIC_PERM_RESERV;
         sv_init(&(tic->t_sema), SV_DEFAULT, "logtick");
 
+        XLOG_TIC_RESET_RES(tic);
+
         return tic;
 }       /* xlog_ticket_get */
 
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
index 0db122ddda3f..18961119fc65 100644
--- a/fs/xfs/xfs_log.h
+++ b/fs/xfs/xfs_log.h
@@ -114,9 +114,44 @@ xfs_lsn_t	_lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2)
 #define XFS_VOLUME              0x2
 #define XFS_LOG                 0xaa
 
+
+/* Region types for iovec's i_type */
+#if defined(XFS_LOG_RES_DEBUG)
+#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
+#endif
+
+#if defined(XFS_LOG_RES_DEBUG)
+#define XLOG_VEC_SET_TYPE(vecp, t) ((vecp)->i_type = (t))
+#else
+#define XLOG_VEC_SET_TYPE(vecp, t)
+#endif
+
+
 typedef struct xfs_log_iovec {
         xfs_caddr_t             i_addr;         /* beginning address of region */
         int             i_len;          /* length in bytes of region */
+#if defined(XFS_LOG_RES_DEBUG)
+        uint            i_type;         /* type of region */
+#endif
 } xfs_log_iovec_t;
 
 typedef void* xfs_log_ticket_t;
@@ -159,7 +194,8 @@ int	  xfs_log_reserve(struct xfs_mount *mp,
                           int              count,
                           xfs_log_ticket_t *ticket,
                           __uint8_t        clientid,
-                          uint             flags);
+                          uint             flags,
+                          uint             t_type);
 int       xfs_log_write(struct xfs_mount *mp,
                         xfs_log_iovec_t  region[],
                         int              nentries,
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 1a1d452f15f9..eb7fdc6ebc32 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -335,18 +335,66 @@ typedef __uint32_t xlog_tid_t;
 
 #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
 
 
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 06dfca531f79..92efe272b83d 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -276,7 +276,7 @@ xfs_trans_reserve(
 
                 error = xfs_log_reserve(tp->t_mountp, logspace, logcount,
                                         &tp->t_ticket,
-                                        XFS_TRANSACTION, log_flags);
+                                        XFS_TRANSACTION, log_flags, tp->t_type);
                 if (error) {
                         goto undo_blocks;
                 }
@@ -1032,6 +1032,7 @@ xfs_trans_fill_vecs(
         tp->t_header.th_num_items = nitems;
         log_vector->i_addr = (xfs_caddr_t)&tp->t_header;
         log_vector->i_len = sizeof(xfs_trans_header_t);
+        XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_TRANSHDR);
 }
 
 
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index ec541d66fa2a..9ee5eeee8026 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -112,6 +112,7 @@ typedef struct xfs_trans_header {
 #define XFS_TRANS_GROWFSRT_ZERO         38
 #define XFS_TRANS_GROWFSRT_FREE         39
 #define XFS_TRANS_SWAPEXT               40
+#define XFS_TRANS_TYPE_MAX              40
 /* new transaction types need to be reflected in xfs_logprint(8) */