[PATCH 3/4] xfstests: fix brain-o in fallocate log dump

[Dave Chinner]

From: Dave Chinner <dchinner at redhat.com>

fsx segvs when dumping fallocate log entries. Fix magic string
array index parameters to be zero based rather than one based.

While touching log string related stuff, make the format consistent
with read and write operations so the log dump is easier to look at
with the human eye.

Signed-off-by: Dave Chinner <dchinner at redhat.com>
---
 ltp/fsx.c |   28 +++++++++++++++-------------
 1 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/ltp/fsx.c b/ltp/fsx.c
index 66daefe..38d5278 100644
--- a/ltp/fsx.c
+++ b/ltp/fsx.c
@@ -223,14 +223,14 @@ logdump(void)
 		int opnum;
 
 		opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
-		prt("%d(%d mod 256): ", opnum, opnum%256);
+		prt("%d(%3d mod 256): ", opnum, opnum%256);
 		lp = &oplog[i];
 		if ((closeopen = lp->operation < 0))
 			lp->operation = ~ lp->operation;
 			
 		switch (lp->operation) {
 		case OP_MAPREAD:
-			prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
+			prt("MAPREAD  0x%x thru 0x%x\t(0x%x bytes)",
 			    lp->args[0], lp->args[0] + lp->args[1] - 1,
 			    lp->args[1]);
 			if (badoff >= lp->args[0] && badoff <
@@ -246,7 +246,7 @@ logdump(void)
 				prt("\t******WWWW");
 			break;
 		case OP_READ:
-			prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
+			prt("READ     0x%x thru 0x%x\t(0x%x bytes)",
 			    lp->args[0], lp->args[0] + lp->args[1] - 1,
 			    lp->args[1]);
 			if (badoff >= lp->args[0] &&
@@ -254,7 +254,7 @@ logdump(void)
 				prt("\t***RRRR***");
 			break;
 		case OP_WRITE:
-			prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
+			prt("WRITE    0x%x thru 0x%x\t(0x%x bytes)",
 			    lp->args[0], lp->args[0] + lp->args[1] - 1,
 			    lp->args[1]);
 			if (lp->args[0] > lp->args[2])
@@ -275,14 +275,15 @@ logdump(void)
 			break;
 		case OP_FALLOCATE:
 			/* 0: offset 1: length 2: where alloced */
-			prt("FALLOCATE %s\tfrom 0x%x to 0x%x",
-			    falloc_type[lp->args[2]], lp->args[0], lp->args[0] + lp->args[1]);
+			prt("FALLOC   0x%x thru 0x%x\t(0x%x bytes) %s",
+				lp->args[0], lp->args[0] + lp->args[1],
+				lp->args[1], falloc_type[lp->args[2]]);
 			if (badoff >= lp->args[0] &&
 			    badoff < lp->args[0] + lp->args[1])
 				prt("\t******FFFF");
 			break;
 		case OP_PUNCH_HOLE:
-			prt("PUNCH HOLE\t0x%x thru 0x%x\t(0x%x bytes)",
+			prt("PUNCH    0x%x thru 0x%x\t(0x%x bytes)",
 			    lp->args[0], lp->args[0] + lp->args[1] - 1,
 			    lp->args[1]);
 			if (badoff >= lp->args[0] && badoff <
@@ -877,12 +878,12 @@ do_preallocate(unsigned offset, unsigned length)
 	}
 
 	/*
-	 * last arg:
-	 * 	1: allocate past EOF
-	 * 	2: extending prealloc
-	 * 	3: interior prealloc
+	 * last arg matches fallocate string array index in logdump:
+	 * 	0: allocate past EOF
+	 * 	1: extending prealloc
+	 * 	2: interior prealloc
 	 */
-	log4(OP_FALLOCATE, offset, length, (end_offset > file_size) ? (keep_size ? 1 : 2) : 3);
+	log4(OP_FALLOCATE, offset, length, (end_offset > file_size) ? (keep_size ? 0 : 1) : 2);
 
 	if (end_offset > file_size) {
 		memset(good_buf + file_size, '\0', end_offset - file_size);
@@ -895,7 +896,8 @@ do_preallocate(unsigned offset, unsigned length)
 	if ((progressinterval && testcalls % progressinterval == 0) ||
 	    (debug && (monitorstart == -1 || monitorend == -1 ||
 		      end_offset <= monitorend)))
-		prt("%lu falloc\tfrom 0x%x to 0x%x\n", testcalls, offset, length);
+		prt("%lu falloc\tfrom 0x%x to 0x%x (0x%x bytes)\n", testcalls,
+				offset, offset + length, length);
 	if (fallocate(fd, keep_size ? FALLOC_FL_KEEP_SIZE : 0, (loff_t)offset, (loff_t)length) == -1) {
 	        prt("fallocate: %x to %x\n", offset, length);
 		prterr("do_preallocate: fallocate");
-- 
1.7.5.1