[RFC PATCH] fiemap-tester.c: Do not error out when FIEMAP_EXTENT_NOT_ALIGNED is set and extent is aligned.

[Chandan Rajendra <chandan@linux.vnet.ibm.com>]

>From Linux kernel's Documentation/filesystems/fiemap.txt,

* FIEMAP_EXTENT_NOT_ALIGNED
Extent offsets and length are not guaranteed to be block aligned.

So this means that FIEMAP_EXTENT_NOT_ALIGNED is just a hint that indicates
that the extent range could possibly be out of alignment w.r.t to the
filesystem's blocksize. It should still be possible for fiemap ioctl to return
extents with FIEMAP_EXTENT_NOT_ALIGNED flag set (e.g. Inline extents) but
which have blocksize aligned ranges.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
---
 src/fiemap-tester.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/src/fiemap-tester.c b/src/fiemap-tester.c
index 8e633ab..74dea17 100644
--- a/src/fiemap-tester.c
+++ b/src/fiemap-tester.c
@@ -195,17 +195,6 @@ check_flags(struct fiemap *fiemap, int blocksize)
 			return -1;
 		}
 
-		if (extent->fe_flags & FIEMAP_EXTENT_NOT_ALIGNED &&
-		    aligned_offset == extent->fe_physical &&
-		    aligned_length == extent->fe_length) {
-			printf("ERROR: FIEMAP_EXTENT_NOT_ALIGNED is set but "
-			       "offset and length is blocksize aligned: "
-			       "%llu\n",
-			       (unsigned long long)
-			       (extent->fe_logical / blocksize));
-			return -1;
-		}
-
 		if (extent->fe_flags & FIEMAP_EXTENT_LAST &&
 		    c + 1 < fiemap->fm_mapped_extents) {
 			printf("ERROR: FIEMAP_EXTENT_LAST is set but there are"
-- 
2.1.0