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author | Arnd Bergmann <arnd@arndb.de> | 2024-02-27 19:15:39 +0300 |
---|---|---|
committer | Theodore Ts'o <tytso@mit.edu> | 2024-03-07 21:32:54 +0300 |
commit | d60c53694c6ff560963590971720d632bb3d481e (patch) | |
tree | 0622f651911cd9493fe3805311ce473939f0e633 | |
parent | 07be778c70149321f785611a9c50125b904b0508 (diff) | |
download | linux-d60c53694c6ff560963590971720d632bb3d481e.tar.xz |
ext4: kunit: use dynamic inode allocation
Storing an inode structure on the stack pushes some functions over the warning
limit for stack frame size:
In file included from fs/ext4/mballoc.c:7039:
fs/ext4/mballoc-test.c:506:13: error: stack frame size (1032) exceeds limit (1024) in 'test_mark_diskspace_used' [-Werror,-Wframe-larger-than]
506 | static void test_mark_diskspace_used(struct kunit *test)
| ^
Use kunit_kzalloc() for all inodes. There may be a better way to do it by
preallocating the inode, which would result in a larger rework.
Fixes: 2b81493f8eb6 ("ext4: Add unit test for ext4_mb_mark_diskspace_used")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kemeng Shi <shikemeng@huaweicloud.com>
Link: https://lore.kernel.org/r/20240227161548.2929881-1-arnd@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
-rw-r--r-- | fs/ext4/mballoc-test.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/fs/ext4/mballoc-test.c b/fs/ext4/mballoc-test.c index 12d0b22cabe1..3b43301054b6 100644 --- a/fs/ext4/mballoc-test.c +++ b/fs/ext4/mballoc-test.c @@ -332,14 +332,19 @@ static void mbt_kunit_exit(struct kunit *test) static void test_new_blocks_simple(struct kunit *test) { struct super_block *sb = (struct super_block *)test->priv; - struct inode inode = { .i_sb = sb, }; + struct inode *inode; struct ext4_allocation_request ar; ext4_group_t i, goal_group = TEST_GOAL_GROUP; int err = 0; ext4_fsblk_t found; struct ext4_sb_info *sbi = EXT4_SB(sb); - ar.inode = &inode; + inode = kunit_kzalloc(test, sizeof(*inode), GFP_KERNEL); + if (!inode) + return; + + inode->i_sb = sb; + ar.inode = inode; /* get block at goal */ ar.goal = ext4_group_first_block_no(sb, goal_group); @@ -441,15 +446,20 @@ test_free_blocks_simple_range(struct kunit *test, ext4_group_t goal_group, { struct super_block *sb = (struct super_block *)test->priv; struct ext4_sb_info *sbi = EXT4_SB(sb); - struct inode inode = { .i_sb = sb, }; + struct inode *inode; ext4_fsblk_t block; + inode = kunit_kzalloc(test, sizeof(*inode), GFP_KERNEL); + if (!inode) + return; + inode->i_sb = sb; + if (len == 0) return; block = ext4_group_first_block_no(sb, goal_group) + EXT4_C2B(sbi, start); - ext4_free_blocks_simple(&inode, block, len); + ext4_free_blocks_simple(inode, block, len); validate_free_blocks_simple(test, sb, goal_group, start, len); mbt_ctx_mark_used(sb, goal_group, 0, EXT4_CLUSTERS_PER_GROUP(sb)); } @@ -506,16 +516,21 @@ test_mark_diskspace_used_range(struct kunit *test, static void test_mark_diskspace_used(struct kunit *test) { struct super_block *sb = (struct super_block *)test->priv; - struct inode inode = { .i_sb = sb, }; + struct inode *inode; struct ext4_allocation_context ac; struct test_range ranges[TEST_RANGE_COUNT]; int i; mbt_generate_test_ranges(sb, ranges, TEST_RANGE_COUNT); + inode = kunit_kzalloc(test, sizeof(*inode), GFP_KERNEL); + if (!inode) + return; + inode->i_sb = sb; + ac.ac_status = AC_STATUS_FOUND; ac.ac_sb = sb; - ac.ac_inode = &inode; + ac.ac_inode = inode; for (i = 0; i < TEST_RANGE_COUNT; i++) test_mark_diskspace_used_range(test, &ac, ranges[i].start, ranges[i].len); |