[LTP] [PATCH v3 2/2] swapon01: create 128MB swapfile

[Li Wang]

The modification in the setup function changes the swap file
creation approach. Instead of allocating swap space based on
a number of blocks (which potentially could be too small for
the polluted memory swapout, thus causing an OOM), it now uses
a fixed size of 128 units for the swap file creation.

This is likely a conservative figure to prevent the OOM killer
from being triggered due to excessive memory allocation for the
swap file, helping ensure the test runs successfully on systems
with no swap space.

Signed-off-by: Li Wang <liwang@redhat.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
---
 testcases/kernel/syscalls/swapon/swapon01.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testcases/kernel/syscalls/swapon/swapon01.c b/testcases/kernel/syscalls/swapon/swapon01.c
index b986d97c4..49915c32d 100644
--- a/testcases/kernel/syscalls/swapon/swapon01.c
+++ b/testcases/kernel/syscalls/swapon/swapon01.c
@@ -38,7 +38,7 @@ static void verify_swapon(void)
 static void setup(void)
 {
 	is_swap_supported(SWAP_FILE);
-	MAKE_SWAPFILE_BLKS(SWAP_FILE, 10);
+	MAKE_SWAPFILE_SIZE(SWAP_FILE, 128);
 
 	SAFE_CG_PRINTF(tst_cg, "cgroup.procs", "%d", getpid());
 	SAFE_CG_PRINTF(tst_cg, "memory.max", "%lu", TESTMEM);
-- 
2.40.1