[PATCH 2/2] xfstests 225: add additional fiemap-tester run without sync

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Chris Mason pointed out that some filesystems were not doing
the right thing on fiemap, in the face of delalloc extents.

Because test 225 ran with FIEMAP_FLAG_SYNC only, this didn't
get caught.  Add a runtime option, and run it both ways.

Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---

diff --git a/225 b/225
index 6e879a4..6b203e6 100755
--- a/225
+++ b/225
@@ -60,7 +60,10 @@ _cleanup()
 }
 trap "_cleanup; exit \$status" 0 1 2 3 15
 
-echo "fiemap run without preallocation"
+echo "fiemap run without preallocation, with sync"
+$here/src/fiemap-tester -q -p 0 -r 200 $fiemapfile 2>&1 | tee $fiemaplog
+
+echo "fiemap run without preallocation or sync"
 $here/src/fiemap-tester -q -p 0 -r 200 $fiemapfile 2>&1 | tee $fiemaplog
 
 if grep -q "Operation not supported" $fiemaplog; then
diff --git a/225.out b/225.out
index 7bc9312..b4f6477 100644
--- a/225.out
+++ b/225.out
@@ -1,2 +1,3 @@
 QA output created by 225
-fiemap run without preallocation
+fiemap run without preallocation, with sync
+fiemap run without preallocation or sync
diff --git a/src/fiemap-tester.c b/src/fiemap-tester.c
index 53d7a64..6320580 100644
--- a/src/fiemap-tester.c
+++ b/src/fiemap-tester.c
@@ -418,7 +418,7 @@ static int query_fiemap_count(int fd, int blocks, int blocksize)
 }
 
 static int
-compare_fiemap_and_map(int fd, char *map, int blocks, int blocksize)
+compare_fiemap_and_map(int fd, char *map, int blocks, int blocksize, int syncfile)
 {
 	struct fiemap *fiemap;
 	char *fiebuf;
@@ -446,7 +446,7 @@ compare_fiemap_and_map(int fd, char *map, int blocks, int blocksize)
 			last_data = i;
 	}
 
-	fiemap->fm_flags = FIEMAP_FLAG_SYNC;
+	fiemap->fm_flags = syncfile ? FIEMAP_FLAG_SYNC : 0;
 	fiemap->fm_extent_count = blocks_to_map;
 	fiemap->fm_mapped_extents = 0;
 
@@ -519,9 +519,10 @@ main(int argc, char **argv)
 	int	blocks = 0;	/* the number of blocks to generate */
 	int	maxblocks = 0;	/* max # of blocks to create */
 	int	prealloc = 1;	/* whether or not to do preallocation */
+	int	syncfile = 0;	/* whether fiemap should  sync file first */
 	int	seed = 1;
 
-	while ((opt = getopt(argc, argv, "m:r:s:p:q")) != -1) {
+	while ((opt = getopt(argc, argv, "m:r:s:p:qS")) != -1) {
 		switch(opt) {
 		case 'm':
 			map = strdup(optarg);
@@ -538,13 +539,16 @@ main(int argc, char **argv)
 		case 'q':
 			quiet = 1;
 			break;
-		/* sync file before mapping */
 		case 'r':
 			runs = atoi(optarg);
 			break;
 		case 's':
 			seed = atoi(optarg);
 			break;
+		/* sync file before mapping */
+		case 'S':
+			syncfile = 1;
+			break;
 		default:
 			usage();
 		}
@@ -623,7 +627,7 @@ main(int argc, char **argv)
 			exit(1);
 		}
 
-		rc = compare_fiemap_and_map(fd, map, blocks, blocksize);
+		rc = compare_fiemap_and_map(fd, map, blocks, blocksize, syncfile);
 		if (rc) {
 			printf("Problem comparing fiemap and map\n");
 			free(map);

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