[LTP] [PATCH] inode01: Increase dev_min_size to prevent ENOSPC on exfat

[Wake Liu]

The parallel scenario concurrently spawns multiple workers (default 5),
each creating 2,185 files and directories, totaling 10,925 objects.

On exfat, each file and directory occupies at least one cluster (default
32 KB for volumes > 256 MB), which requires ~350 MB of data clusters.
With filesystem metadata (FAT, allocation bitmap, upcase table),
directory growth, boundary alignment, and multi-worker concurrent
allocation fragmentation, the current 512 MB device size is easily
exhausted, leading to ENOSPC failures during write() or mkdir():

  inode01.c:61: TBROK: write(3,...) failed: ENOSPC (28)
  inode01.c:64: TBROK: mkdir(...) failed: ENOSPC (28)

Increase dev_min_size to 1024 MB to provide sufficient headroom for the
parallel scenario on exfat.

Fixes: ecf418722780 ("inode01: increase dev_min_size to fit the peak usage in parallel scenario")
Signed-off-by: Wake Liu <wakel@google.com>
---
 testcases/kernel/fs/inode/inode01.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testcases/kernel/fs/inode/inode01.c b/testcases/kernel/fs/inode/inode01.c
index 50b5311a4..87ee07612 100644
--- a/testcases/kernel/fs/inode/inode01.c
+++ b/testcases/kernel/fs/inode/inode01.c
@@ -256,7 +256,7 @@ static struct tst_test test = {
 	.mount_device = 1,
 	.all_filesystems = 1,
 	.needs_root = 1,
-	.dev_min_size = 512,
+	.dev_min_size = 1024,
 	.forks_child = 1,
 	.needs_checkpoints = 1,
 	.timeout = 300,
-- 
2.55.0.897.gb25b4bd76c-goog