[LTP] [PATCH v2] mremap06: fallocate is not supported on nfsv4.1 or earlier

[Samasth Norway Ananda]

The function fallocate() is only supported over NFSv4.2. Thus when we
run the mremap06 ltp test over an NFSv4.1 or earlier filesystem the test
fails.

Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
---
 testcases/kernel/syscalls/mremap/mremap06.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/syscalls/mremap/mremap06.c b/testcases/kernel/syscalls/mremap/mremap06.c
index 3bbaf441a..f3df0551c 100644
--- a/testcases/kernel/syscalls/mremap/mremap06.c
+++ b/testcases/kernel/syscalls/mremap/mremap06.c
@@ -104,8 +104,13 @@ static void setup(void)
 	fd = SAFE_OPEN("testfile", O_CREAT | O_RDWR | O_TRUNC, 0600);
 
 	ret = fallocate(fd, 0, 0, mmap_size);
-	if (ret == -1)
+	if (ret != 0) {
+		if (tst_fs_type(".") == TST_NFS_MAGIC && (errno == EOPNOTSUPP || errno == ENOSYS)) {
+			tst_brk(TCONF,
+				"fallocate system call is not implemented");
+		}
 		tst_brk(TBROK, "fallocate() failed");
+	}
 
 	buf = SAFE_MMAP(0, mmap_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
 
-- 
2.43.0