[PATCH] selftests/mount: Explicitly define buffer size

From: ritvikfoss
Date: Sat Feb 22 2025 - 03:17:24 EST


From: Ritvik Gupta <ritvikfoss@xxxxxxxxx>

Define macro ('MAX_BUF_SIZE') for buffer size
instead of hardcoded value '4096', to improve
readability.

Signed-off-by: Ritvik Gupta <ritvikfoss@xxxxxxxxx>
---
tools/testing/selftests/mount/unprivileged-remount-test.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mount/unprivileged-remount-test.c b/tools/testing/selftests/mount/unprivileged-remount-test.c
index d2917054fe3a..67a550b7c69b 100644
--- a/tools/testing/selftests/mount/unprivileged-remount-test.c
+++ b/tools/testing/selftests/mount/unprivileged-remount-test.c
@@ -45,6 +45,8 @@
# define MS_STRICTATIME (1 << 24)
#endif

+#define MAX_BUF_SIZE 4096
+
static void die(char *fmt, ...)
{
va_list ap;
@@ -56,7 +58,7 @@ static void die(char *fmt, ...)

static void vmaybe_write_file(bool enoent_ok, char *filename, char *fmt, va_list ap)
{
- char buf[4096];
+ char buf[MAX_BUF_SIZE];
int fd;
ssize_t written;
int buf_len;
--
2.48.1