diff mbox series

[3/3] libswap: Use {SAFE_,}MAKE_MINIMAL_SWAPFILE()

Message ID 20240418141312.99794-4-pvorel@suse.cz
State Changes Requested
Headers show
Series swap{on,off} fixes for page size > 4KB | expand

Commit Message

Petr Vorel April 18, 2024, 2:13 p.m. UTC 
This effectively increases the minimal used number of blocks to 256.

All {SAFE_,}MAKE_SWAPFILE_SIZE() calls which were creating swap used 10
blocks. While this is ok on 4kb page size, it's too low on systems with
64kb page size (e.g. on aarch64 with CONFIG_ARM64_64K_PAGES=y or on
ppc64le with CONFIG_PAGE_SIZE_64KB=y):

    TWARN: Swapfile size is less than the system page size. Using page size
    (65536 bytes) instead of block size (4096 bytes).

Obviously it would fail also on kernels with CONFIG_PAGE_SIZE_256KB.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 libs/libltpswap/libswap.c                     | 2 +-
 testcases/kernel/syscalls/swapoff/swapoff02.c | 2 +-
 testcases/kernel/syscalls/swapon/swapon02.c   | 4 ++--
 testcases/kernel/syscalls/swapon/swapon03.c   | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

Comments

Cyril Hrubis April 18, 2024, 3:40 p.m. UTC | #1 
Hi!
This part is obviously fine.

Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
diff mbox series

Patch

diff --git a/libs/libltpswap/libswap.c b/libs/libltpswap/libswap.c
index aed76dfe2..92127d8cd 100644
--- a/libs/libltpswap/libswap.c
+++ b/libs/libltpswap/libswap.c
@@ -192,7 +192,7 @@  int make_swapfile(const char *file, const int lineno,
 bool is_swap_supported(const char *filename)
 {
 	int i, sw_support = 0;
-	int ret = SAFE_MAKE_SWAPFILE_BLKS(filename, 10);
+	int ret = SAFE_MAKE_MINIMAL_SWAPFILE(filename);
 	int fi_contiguous = file_is_contiguous(filename);
 	long fs_type = tst_fs_type(filename);
 	const char *fstype = tst_fs_type_name(fs_type);
diff --git a/testcases/kernel/syscalls/swapoff/swapoff02.c b/testcases/kernel/syscalls/swapoff/swapoff02.c
index 5a15826e4..676d06619 100644
--- a/testcases/kernel/syscalls/swapoff/swapoff02.c
+++ b/testcases/kernel/syscalls/swapoff/swapoff02.c
@@ -87,7 +87,7 @@  static void setup(void)
 	nobody_uid = nobody->pw_uid;
 
 	is_swap_supported(TEST_FILE);
-	SAFE_MAKE_SWAPFILE_BLKS(SWAP_FILE, 10);
+	SAFE_MAKE_MINIMAL_SWAPFILE(SWAP_FILE);
 }
 
 static struct tst_test test = {
diff --git a/testcases/kernel/syscalls/swapon/swapon02.c b/testcases/kernel/syscalls/swapon/swapon02.c
index e5e29b8e7..20f3cfd26 100644
--- a/testcases/kernel/syscalls/swapon/swapon02.c
+++ b/testcases/kernel/syscalls/swapon/swapon02.c
@@ -50,8 +50,8 @@  static void setup(void)
 	is_swap_supported(TEST_FILE);
 
 	SAFE_TOUCH(NOTSWAP_FILE, 0777, NULL);
-	MAKE_SWAPFILE_BLKS(SWAP_FILE, 10);
-	MAKE_SWAPFILE_BLKS(USED_FILE, 10);
+	MAKE_MINIMAL_SWAPFILE(SWAP_FILE);
+	MAKE_MINIMAL_SWAPFILE(USED_FILE);
 
 	if (tst_syscall(__NR_swapon, USED_FILE, 0))
 		tst_res(TWARN | TERRNO, "swapon(alreadyused) failed");
diff --git a/testcases/kernel/syscalls/swapon/swapon03.c b/testcases/kernel/syscalls/swapon/swapon03.c
index 5295a6a73..342b5e38a 100644
--- a/testcases/kernel/syscalls/swapon/swapon03.c
+++ b/testcases/kernel/syscalls/swapon/swapon03.c
@@ -49,7 +49,7 @@  static int setup_swap(void)
 
 			/* Create the swapfile */
 			snprintf(filename, sizeof(filename), "%s%02d", TEST_FILE, j + 2);
-			MAKE_SWAPFILE_BLKS(filename, 10);
+			MAKE_MINIMAL_SWAPFILE(filename);
 
 			/* turn on the swap file */
 			TST_EXP_PASS_SILENT(swapon(filename, 0));
@@ -62,7 +62,7 @@  static int setup_swap(void)
 		tst_brk(TFAIL, "Failed to setup swap files");
 
 	tst_res(TINFO, "Successfully created %d swap files", swapfiles);
-	MAKE_SWAPFILE_BLKS(TEST_FILE, 10);
+	MAKE_MINIMAL_SWAPFILE(TEST_FILE);
 
 	return 0;
 }