xfs: event tracing support

Convert the old xfs tracing support that could only be used with the
out of tree kdb and xfsidbg patches to use the generic event tracer.

To use it make sure CONFIG_EVENT_TRACING is enabled and then enable
all xfs trace channels by:

   echo 1 > /sys/kernel/debug/tracing/events/xfs/enable

or alternatively enable single events by just doing the same in one
event subdirectory, e.g.

   echo 1 > /sys/kernel/debug/tracing/events/xfs/xfs_ihold/enable

or set more complex filters, etc. In Documentation/trace/events.txt
all this is desctribed in more detail.  To reads the events do a

   cat /sys/kernel/debug/tracing/trace

Compared to the last posting this patch converts the tracing mostly to
the one tracepoint per callsite model that other users of the new
tracing facility also employ.  This allows a very fine-grained control
of the tracing, a cleaner output of the traces and also enables the
perf tool to use each tracepoint as a virtual performance counter,
     allowing us to e.g. count how often certain workloads git various
     spots in XFS.  Take a look at

    http://lwn.net/Articles/346470/

for some examples.

Also the btree tracing isn't included at all yet, as it will require
additional core tracing features not in mainline yet, I plan to
deliver it later.

And the really nice thing about this patch is that it actually removes
many lines of code while adding this nice functionality:

 fs/xfs/Makefile                |    8
 fs/xfs/linux-2.6/xfs_acl.c     |    1
 fs/xfs/linux-2.6/xfs_aops.c    |   52 -
 fs/xfs/linux-2.6/xfs_aops.h    |    2
 fs/xfs/linux-2.6/xfs_buf.c     |  117 +--
 fs/xfs/linux-2.6/xfs_buf.h     |   33
 fs/xfs/linux-2.6/xfs_fs_subr.c |    3
 fs/xfs/linux-2.6/xfs_ioctl.c   |    1
 fs/xfs/linux-2.6/xfs_ioctl32.c |    1
 fs/xfs/linux-2.6/xfs_iops.c    |    1
 fs/xfs/linux-2.6/xfs_linux.h   |    1
 fs/xfs/linux-2.6/xfs_lrw.c     |   87 --
 fs/xfs/linux-2.6/xfs_lrw.h     |   45 -
 fs/xfs/linux-2.6/xfs_super.c   |  104 ---
 fs/xfs/linux-2.6/xfs_super.h   |    7
 fs/xfs/linux-2.6/xfs_sync.c    |    1
 fs/xfs/linux-2.6/xfs_trace.c   |   75 ++
 fs/xfs/linux-2.6/xfs_trace.h   | 1369 +++++++++++++++++++++++++++++++++++++++++
 fs/xfs/linux-2.6/xfs_vnode.h   |    4
 fs/xfs/quota/xfs_dquot.c       |  110 ---
 fs/xfs/quota/xfs_dquot.h       |   21
 fs/xfs/quota/xfs_qm.c          |   40 -
 fs/xfs/quota/xfs_qm_syscalls.c |    4
 fs/xfs/support/ktrace.c        |  323 ---------
 fs/xfs/support/ktrace.h        |   85 --
 fs/xfs/xfs.h                   |   16
 fs/xfs/xfs_ag.h                |   14
 fs/xfs/xfs_alloc.c             |  230 +-----
 fs/xfs/xfs_alloc.h             |   27
 fs/xfs/xfs_alloc_btree.c       |    1
 fs/xfs/xfs_attr.c              |  107 ---
 fs/xfs/xfs_attr.h              |   10
 fs/xfs/xfs_attr_leaf.c         |   14
 fs/xfs/xfs_attr_sf.h           |   40 -
 fs/xfs/xfs_bmap.c              |  507 +++------------
 fs/xfs/xfs_bmap.h              |   49 -
 fs/xfs/xfs_bmap_btree.c        |    6
 fs/xfs/xfs_btree.c             |    5
 fs/xfs/xfs_btree_trace.h       |   17
 fs/xfs/xfs_buf_item.c          |   87 --
 fs/xfs/xfs_buf_item.h          |   20
 fs/xfs/xfs_da_btree.c          |    3
 fs/xfs/xfs_da_btree.h          |    7
 fs/xfs/xfs_dfrag.c             |    2
 fs/xfs/xfs_dir2.c              |    8
 fs/xfs/xfs_dir2_block.c        |   20
 fs/xfs/xfs_dir2_leaf.c         |   21
 fs/xfs/xfs_dir2_node.c         |   27
 fs/xfs/xfs_dir2_sf.c           |   26
 fs/xfs/xfs_dir2_trace.c        |  216 ------
 fs/xfs/xfs_dir2_trace.h        |   72 --
 fs/xfs/xfs_filestream.c        |    8
 fs/xfs/xfs_fsops.c             |    2
 fs/xfs/xfs_iget.c              |  111 ---
 fs/xfs/xfs_inode.c             |   67 --
 fs/xfs/xfs_inode.h             |   76 --
 fs/xfs/xfs_inode_item.c        |    5
 fs/xfs/xfs_iomap.c             |   85 --
 fs/xfs/xfs_iomap.h             |    8
 fs/xfs/xfs_log.c               |  181 +----
 fs/xfs/xfs_log_priv.h          |   20
 fs/xfs/xfs_log_recover.c       |    1
 fs/xfs/xfs_mount.c             |    2
 fs/xfs/xfs_quota.h             |    8
 fs/xfs/xfs_rename.c            |    1
 fs/xfs/xfs_rtalloc.c           |    1
 fs/xfs/xfs_rw.c                |    3
 fs/xfs/xfs_trans.h             |   47 +
 fs/xfs/xfs_trans_buf.c         |   62 -
 fs/xfs/xfs_vnodeops.c          |    8
 70 files changed, 2151 insertions(+), 2592 deletions(-)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 44 insertions, 186 deletions

diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 2cf944eb796..a1c65fc6d9c 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -38,6 +38,7 @@
 #include "xfs_ialloc.h"
 #include "xfs_alloc.h"
 #include "xfs_error.h"
+#include "xfs_trace.h"
 
 
 #define XFS_ABSDIFF(a,b)	(((a) <= (b)) ? ((b) - (a)) : ((a) - (b)))
@@ -51,30 +52,6 @@ xfs_alloc_search_busy(xfs_trans_t *tp,
 		    xfs_agblock_t bno,
 		    xfs_extlen_t len);
 
-#if defined(XFS_ALLOC_TRACE)
-ktrace_t *xfs_alloc_trace_buf;
-
-#define	TRACE_ALLOC(s,a)	\
-	xfs_alloc_trace_alloc(__func__, s, a, __LINE__)
-#define	TRACE_FREE(s,a,b,x,f)	\
-	xfs_alloc_trace_free(__func__, s, mp, a, b, x, f, __LINE__)
-#define	TRACE_MODAGF(s,a,f)	\
-	xfs_alloc_trace_modagf(__func__, s, mp, a, f, __LINE__)
-#define	TRACE_BUSY(__func__,s,ag,agb,l,sl,tp)	\
-	xfs_alloc_trace_busy(__func__, s, mp, ag, agb, l, sl, tp, XFS_ALLOC_KTRACE_BUSY, __LINE__)
-#define	TRACE_UNBUSY(__func__,s,ag,sl,tp)	\
-	xfs_alloc_trace_busy(__func__, s, mp, ag, -1, -1, sl, tp, XFS_ALLOC_KTRACE_UNBUSY, __LINE__)
-#define	TRACE_BUSYSEARCH(__func__,s,ag,agb,l,tp)	\
-	xfs_alloc_trace_busy(__func__, s, mp, ag, agb, l, 0, tp, XFS_ALLOC_KTRACE_BUSYSEARCH, __LINE__)
-#else
-#define	TRACE_ALLOC(s,a)
-#define	TRACE_FREE(s,a,b,x,f)
-#define	TRACE_MODAGF(s,a,f)
-#define	TRACE_BUSY(s,a,ag,agb,l,sl,tp)
-#define	TRACE_UNBUSY(fname,s,ag,sl,tp)
-#define	TRACE_BUSYSEARCH(fname,s,ag,agb,l,tp)
-#endif	/* XFS_ALLOC_TRACE */
-
 /*
  * Prototypes for per-ag allocation routines
  */
@@ -498,124 +475,6 @@ xfs_alloc_read_agfl(
 	return 0;
 }
 
-#if defined(XFS_ALLOC_TRACE)
-/*
- * Add an allocation trace entry for an alloc call.
- */
-STATIC void
-xfs_alloc_trace_alloc(
-	const char	*name,		/* function tag string */
-	char		*str,		/* additional string */
-	xfs_alloc_arg_t	*args,		/* allocation argument structure */
-	int		line)		/* source line number */
-{
-	ktrace_enter(xfs_alloc_trace_buf,
-		(void *)(__psint_t)(XFS_ALLOC_KTRACE_ALLOC | (line << 16)),
-		(void *)name,
-		(void *)str,
-		(void *)args->mp,
-		(void *)(__psunsigned_t)args->agno,
-		(void *)(__psunsigned_t)args->agbno,
-		(void *)(__psunsigned_t)args->minlen,
-		(void *)(__psunsigned_t)args->maxlen,
-		(void *)(__psunsigned_t)args->mod,
-		(void *)(__psunsigned_t)args->prod,
-		(void *)(__psunsigned_t)args->minleft,
-		(void *)(__psunsigned_t)args->total,
-		(void *)(__psunsigned_t)args->alignment,
-		(void *)(__psunsigned_t)args->len,
-		(void *)((((__psint_t)args->type) << 16) |
-			 (__psint_t)args->otype),
-		(void *)(__psint_t)((args->wasdel << 3) |
-				    (args->wasfromfl << 2) |
-				    (args->isfl << 1) |
-				    (args->userdata << 0)));
-}
-
-/*
- * Add an allocation trace entry for a free call.
- */
-STATIC void
-xfs_alloc_trace_free(
-	const char	*name,		/* function tag string */
-	char		*str,		/* additional string */
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_agnumber_t	agno,		/* allocation group number */
-	xfs_agblock_t	agbno,		/* a.g. relative block number */
-	xfs_extlen_t	len,		/* length of extent */
-	int		isfl,		/* set if is freelist allocation/free */
-	int		line)		/* source line number */
-{
-	ktrace_enter(xfs_alloc_trace_buf,
-		(void *)(__psint_t)(XFS_ALLOC_KTRACE_FREE | (line << 16)),
-		(void *)name,
-		(void *)str,
-		(void *)mp,
-		(void *)(__psunsigned_t)agno,
-		(void *)(__psunsigned_t)agbno,
-		(void *)(__psunsigned_t)len,
-		(void *)(__psint_t)isfl,
-		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
-}
-
-/*
- * Add an allocation trace entry for modifying an agf.
- */
-STATIC void
-xfs_alloc_trace_modagf(
-	const char	*name,		/* function tag string */
-	char		*str,		/* additional string */
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_agf_t	*agf,		/* new agf value */
-	int		flags,		/* logging flags for agf */
-	int		line)		/* source line number */
-{
-	ktrace_enter(xfs_alloc_trace_buf,
-		(void *)(__psint_t)(XFS_ALLOC_KTRACE_MODAGF | (line << 16)),
-		(void *)name,
-		(void *)str,
-		(void *)mp,
-		(void *)(__psint_t)flags,
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_seqno),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_length),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_roots[XFS_BTNUM_BNO]),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_roots[XFS_BTNUM_CNT]),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_flfirst),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_fllast),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_flcount),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_freeblks),
-		(void *)(__psunsigned_t)be32_to_cpu(agf->agf_longest));
-}
-
-STATIC void
-xfs_alloc_trace_busy(
-	const char	*name,		/* function tag string */
-	char		*str,		/* additional string */
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_agnumber_t	agno,		/* allocation group number */
-	xfs_agblock_t	agbno,		/* a.g. relative block number */
-	xfs_extlen_t	len,		/* length of extent */
-	int		slot,		/* perag Busy slot */
-	xfs_trans_t	*tp,
-	int		trtype,		/* type: add, delete, search */
-	int		line)		/* source line number */
-{
-	ktrace_enter(xfs_alloc_trace_buf,
-		(void *)(__psint_t)(trtype | (line << 16)),
-		(void *)name,
-		(void *)str,
-		(void *)mp,
-		(void *)(__psunsigned_t)agno,
-		(void *)(__psunsigned_t)agbno,
-		(void *)(__psunsigned_t)len,
-		(void *)(__psint_t)slot,
-		(void *)tp,
-		NULL, NULL, NULL, NULL, NULL, NULL, NULL);
-}
-#endif	/* XFS_ALLOC_TRACE */
-
 /*
  * Allocation group level functions.
  */
@@ -665,9 +524,6 @@ xfs_alloc_ag_vextent(
 	 */
 	if (args->agbno != NULLAGBLOCK) {
 		xfs_agf_t	*agf;	/* allocation group freelist header */
-#ifdef XFS_ALLOC_TRACE
-		xfs_mount_t	*mp = args->mp;
-#endif
 		long		slen = (long)args->len;
 
 		ASSERT(args->len >= args->minlen && args->len <= args->maxlen);
@@ -682,7 +538,6 @@ xfs_alloc_ag_vextent(
 			args->pag->pagf_freeblks -= args->len;
 			ASSERT(be32_to_cpu(agf->agf_freeblks) <=
 				be32_to_cpu(agf->agf_length));
-			TRACE_MODAGF(NULL, agf, XFS_AGF_FREEBLKS);
 			xfs_alloc_log_agf(args->tp, args->agbp,
 						XFS_AGF_FREEBLKS);
 			/* search the busylist for these blocks */
@@ -792,13 +647,14 @@ xfs_alloc_ag_vextent_exact(
 	}
 	xfs_btree_del_cursor(bno_cur, XFS_BTREE_NOERROR);
 	xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
-	TRACE_ALLOC("normal", args);
+
+	trace_xfs_alloc_exact_done(args);
 	args->wasfromfl = 0;
 	return 0;
 
 error0:
 	xfs_btree_del_cursor(bno_cur, XFS_BTREE_ERROR);
-	TRACE_ALLOC("error", args);
+	trace_xfs_alloc_exact_error(args);
 	return error;
 }
 
@@ -958,7 +814,7 @@ xfs_alloc_ag_vextent_near(
 		args->len = blen;
 		if (!xfs_alloc_fix_minleft(args)) {
 			xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
-			TRACE_ALLOC("nominleft", args);
+			trace_xfs_alloc_near_nominleft(args);
 			return 0;
 		}
 		blen = args->len;
@@ -981,7 +837,8 @@ xfs_alloc_ag_vextent_near(
 			goto error0;
 		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
 		xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
-		TRACE_ALLOC("first", args);
+
+		trace_xfs_alloc_near_first(args);
 		return 0;
 	}
 	/*
@@ -1272,7 +1129,7 @@ xfs_alloc_ag_vextent_near(
 	 * If we couldn't get anything, give up.
 	 */
 	if (bno_cur_lt == NULL && bno_cur_gt == NULL) {
-		TRACE_ALLOC("neither", args);
+		trace_xfs_alloc_size_neither(args);
 		args->agbno = NULLAGBLOCK;
 		return 0;
 	}
@@ -1299,7 +1156,7 @@ xfs_alloc_ag_vextent_near(
 	args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
 	xfs_alloc_fix_len(args);
 	if (!xfs_alloc_fix_minleft(args)) {
-		TRACE_ALLOC("nominleft", args);
+		trace_xfs_alloc_near_nominleft(args);
 		xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
 		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
 		return 0;
@@ -1314,13 +1171,18 @@ xfs_alloc_ag_vextent_near(
 	if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno, ltlen,
 			ltnew, rlen, XFSA_FIXUP_BNO_OK)))
 		goto error0;
-	TRACE_ALLOC(j ? "gt" : "lt", args);
+
+	if (j)
+		trace_xfs_alloc_near_greater(args);
+	else
+		trace_xfs_alloc_near_lesser(args);
+
 	xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
 	xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
 	return 0;
 
  error0:
-	TRACE_ALLOC("error", args);
+	trace_xfs_alloc_near_error(args);
 	if (cnt_cur != NULL)
 		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_ERROR);
 	if (bno_cur_lt != NULL)
@@ -1371,7 +1233,7 @@ xfs_alloc_ag_vextent_size(
 			goto error0;
 		if (i == 0 || flen == 0) {
 			xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
-			TRACE_ALLOC("noentry", args);
+			trace_xfs_alloc_size_noentry(args);
 			return 0;
 		}
 		ASSERT(i == 1);
@@ -1448,7 +1310,7 @@ xfs_alloc_ag_vextent_size(
 	xfs_alloc_fix_len(args);
 	if (rlen < args->minlen || !xfs_alloc_fix_minleft(args)) {
 		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
-		TRACE_ALLOC("nominleft", args);
+		trace_xfs_alloc_size_nominleft(args);
 		args->agbno = NULLAGBLOCK;
 		return 0;
 	}
@@ -1471,11 +1333,11 @@ xfs_alloc_ag_vextent_size(
 		args->agbno + args->len <=
 			be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length),
 		error0);
-	TRACE_ALLOC("normal", args);
+	trace_xfs_alloc_size_done(args);
 	return 0;
 
 error0:
-	TRACE_ALLOC("error", args);
+	trace_xfs_alloc_size_error(args);
 	if (cnt_cur)
 		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_ERROR);
 	if (bno_cur)
@@ -1534,7 +1396,7 @@ xfs_alloc_ag_vextent_small(
 				be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length),
 				error0);
 			args->wasfromfl = 1;
-			TRACE_ALLOC("freelist", args);
+			trace_xfs_alloc_small_freelist(args);
 			*stat = 0;
 			return 0;
 		}
@@ -1556,17 +1418,17 @@ xfs_alloc_ag_vextent_small(
 	 */
 	if (flen < args->minlen) {
 		args->agbno = NULLAGBLOCK;
-		TRACE_ALLOC("notenough", args);
+		trace_xfs_alloc_small_notenough(args);
 		flen = 0;
 	}
 	*fbnop = fbno;
 	*flenp = flen;
 	*stat = 1;
-	TRACE_ALLOC("normal", args);
+	trace_xfs_alloc_small_done(args);
 	return 0;
 
 error0:
-	TRACE_ALLOC("error", args);
+	trace_xfs_alloc_small_error(args);
 	return error;
 }
 
@@ -1809,17 +1671,14 @@ xfs_free_ag_extent(
 			be32_to_cpu(agf->agf_freeblks) <=
 			be32_to_cpu(agf->agf_length),
 			error0);
-		TRACE_MODAGF(NULL, agf, XFS_AGF_FREEBLKS);
 		xfs_alloc_log_agf(tp, agbp, XFS_AGF_FREEBLKS);
 		if (!isfl)
 			xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, (long)len);
 		XFS_STATS_INC(xs_freex);
 		XFS_STATS_ADD(xs_freeb, len);
 	}
-	TRACE_FREE(haveleft ?
-			(haveright ? "both" : "left") :
-			(haveright ? "right" : "none"),
-		agno, bno, len, isfl);
+
+	trace_xfs_free_extent(mp, agno, bno, len, isfl, haveleft, haveright);
 
 	/*
 	 * Since blocks move to the free list without the coordination
@@ -1836,7 +1695,7 @@ xfs_free_ag_extent(
 	return 0;
 
  error0:
-	TRACE_FREE("error", agno, bno, len, isfl);
+	trace_xfs_free_extent(mp, agno, bno, len, isfl, -1, -1);
 	if (bno_cur)
 		xfs_btree_del_cursor(bno_cur, XFS_BTREE_ERROR);
 	if (cnt_cur)
@@ -2122,7 +1981,6 @@ xfs_alloc_get_freelist(
 		logflags |= XFS_AGF_BTREEBLKS;
 	}
 
-	TRACE_MODAGF(NULL, agf, logflags);
 	xfs_alloc_log_agf(tp, agbp, logflags);
 	*bnop = bno;
 
@@ -2165,6 +2023,8 @@ xfs_alloc_log_agf(
 		sizeof(xfs_agf_t)
 	};
 
+	trace_xfs_agf(tp->t_mountp, XFS_BUF_TO_AGF(bp), fields, _RET_IP_);
+
 	xfs_btree_offsets(fields, offsets, XFS_AGF_NUM_BITS, &first, &last);
 	xfs_trans_log_buf(tp, bp, (uint)first, (uint)last);
 }
@@ -2230,13 +2090,11 @@ xfs_alloc_put_freelist(
 		logflags |= XFS_AGF_BTREEBLKS;
 	}
 
-	TRACE_MODAGF(NULL, agf, logflags);
 	xfs_alloc_log_agf(tp, agbp, logflags);
 
 	ASSERT(be32_to_cpu(agf->agf_flcount) <= XFS_AGFL_SIZE(mp));
 	blockp = &agfl->agfl_bno[be32_to_cpu(agf->agf_fllast)];
 	*blockp = cpu_to_be32(bno);
-	TRACE_MODAGF(NULL, agf, logflags);
 	xfs_alloc_log_agf(tp, agbp, logflags);
 	xfs_trans_log_buf(tp, agflbp,
 		(int)((xfs_caddr_t)blockp - (xfs_caddr_t)agfl),
@@ -2399,7 +2257,7 @@ xfs_alloc_vextent(
 	    args->minlen > args->maxlen || args->minlen > agsize ||
 	    args->mod >= args->prod) {
 		args->fsbno = NULLFSBLOCK;
-		TRACE_ALLOC("badargs", args);
+		trace_xfs_alloc_vextent_badargs(args);
 		return 0;
 	}
 	minleft = args->minleft;
@@ -2418,12 +2276,12 @@ xfs_alloc_vextent(
 		error = xfs_alloc_fix_freelist(args, 0);
 		args->minleft = minleft;
 		if (error) {
-			TRACE_ALLOC("nofix", args);
+			trace_xfs_alloc_vextent_nofix(args);
 			goto error0;
 		}
 		if (!args->agbp) {
 			up_read(&mp->m_peraglock);
-			TRACE_ALLOC("noagbp", args);
+			trace_xfs_alloc_vextent_noagbp(args);
 			break;
 		}
 		args->agbno = XFS_FSB_TO_AGBNO(mp, args->fsbno);
@@ -2488,7 +2346,7 @@ xfs_alloc_vextent(
 			error = xfs_alloc_fix_freelist(args, flags);
 			args->minleft = minleft;
 			if (error) {
-				TRACE_ALLOC("nofix", args);
+				trace_xfs_alloc_vextent_nofix(args);
 				goto error0;
 			}
 			/*
@@ -2499,7 +2357,9 @@ xfs_alloc_vextent(
 					goto error0;
 				break;
 			}
-			TRACE_ALLOC("loopfailed", args);
+
+			trace_xfs_alloc_vextent_loopfailed(args);
+
 			/*
 			 * Didn't work, figure out the next iteration.
 			 */
@@ -2526,7 +2386,7 @@ xfs_alloc_vextent(
 			if (args->agno == sagno) {
 				if (no_min == 1) {
 					args->agbno = NULLAGBLOCK;
-					TRACE_ALLOC("allfailed", args);
+					trace_xfs_alloc_vextent_allfailed(args);
 					break;
 				}
 				if (flags == 0) {
@@ -2642,16 +2502,16 @@ xfs_alloc_mark_busy(xfs_trans_t *tp,
 		}
 	}
 
+	trace_xfs_alloc_busy(mp, agno, bno, len, n);
+
 	if (n < XFS_PAGB_NUM_SLOTS) {
 		bsy = &mp->m_perag[agno].pagb_list[n];
 		mp->m_perag[agno].pagb_count++;
-		TRACE_BUSY("xfs_alloc_mark_busy", "got", agno, bno, len, n, tp);
 		bsy->busy_start = bno;
 		bsy->busy_length = len;
 		bsy->busy_tp = tp;
 		xfs_trans_add_busy(tp, agno, n);
 	} else {
-		TRACE_BUSY("xfs_alloc_mark_busy", "FULL", agno, bno, len, -1, tp);
 		/*
 		 * The busy list is full!  Since it is now not possible to
 		 * track the free block, make this a synchronous transaction
@@ -2678,12 +2538,12 @@ xfs_alloc_clear_busy(xfs_trans_t *tp,
 	list = mp->m_perag[agno].pagb_list;
 
 	ASSERT(idx < XFS_PAGB_NUM_SLOTS);
+
+	trace_xfs_alloc_unbusy(mp, agno, idx, list[idx].busy_tp == tp);
+
 	if (list[idx].busy_tp == tp) {
-		TRACE_UNBUSY("xfs_alloc_clear_busy", "found", agno, idx, tp);
 		list[idx].busy_tp = NULL;
 		mp->m_perag[agno].pagb_count--;
-	} else {
-		TRACE_UNBUSY("xfs_alloc_clear_busy", "missing", agno, idx, tp);
 	}
 
 	spin_unlock(&mp->m_perag[agno].pagb_lock);
@@ -2724,24 +2584,22 @@ xfs_alloc_search_busy(xfs_trans_t *tp,
 			if ((bno > bend) || (uend < bsy->busy_start)) {
 				cnt--;
 			} else {
-				TRACE_BUSYSEARCH("xfs_alloc_search_busy",
-					 "found1", agno, bno, len, tp);
 				break;
 			}
 		}
 	}
 
+	trace_xfs_alloc_busysearch(mp, agno, bno, len, !!cnt);
+
 	/*
 	 * If a block was found, force the log through the LSN of the
 	 * transaction that freed the block
 	 */
 	if (cnt) {
-		TRACE_BUSYSEARCH("xfs_alloc_search_busy", "found", agno, bno, len, tp);
 		lsn = bsy->busy_tp->t_commit_lsn;
 		spin_unlock(&mp->m_perag[agno].pagb_lock);
 		xfs_log_force(mp, lsn, XFS_LOG_FORCE|XFS_LOG_SYNC);
 	} else {
-		TRACE_BUSYSEARCH("xfs_alloc_search_busy", "not-found", agno, bno, len, tp);
 		spin_unlock(&mp->m_perag[agno].pagb_lock);
 	}
 }