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| author | Kemeng Shi <shikemeng@huaweicloud.com> | 2024-03-05 00:35:43 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2024-03-07 13:32:54 -0500 |
| commit | 0ecae5410ab526225293d2591ca4632b22c2fd8c (patch) | |
| tree | eabac4fd825dc007f4f657c698a910ec79d6bab7 /fs/ext4 | |
| parent | ad943758e0ebd881d031b657a3f389315bf3a101 (diff) | |
| download | linux-0ecae5410ab526225293d2591ca4632b22c2fd8c.tar.gz linux-0ecae5410ab526225293d2591ca4632b22c2fd8c.tar.bz2 linux-0ecae5410ab526225293d2591ca4632b22c2fd8c.zip | |
ext4: initialize sbi->s_freeclusters_counter and sbi->s_dirtyclusters_counter before use in kunit test
Fix that sbi->s_freeclusters_counter and sbi->s_dirtyclusters_counter are
used before initialization.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240304163543.6700-4-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/mballoc-test.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/fs/ext4/mballoc-test.c b/fs/ext4/mballoc-test.c index 8188d18ca09d..044ca5238f41 100644 --- a/fs/ext4/mballoc-test.c +++ b/fs/ext4/mballoc-test.c @@ -45,6 +45,7 @@ static struct file_system_type mbt_fs_type = { static int mbt_mb_init(struct super_block *sb) { + ext4_fsblk_t block; int ret; /* needed by ext4_mb_init->bdev_nonrot(sb->s_bdev) */ @@ -69,8 +70,23 @@ static int mbt_mb_init(struct super_block *sb) if (ret != 0) goto err_out; + block = ext4_count_free_clusters(sb); + ret = percpu_counter_init(&EXT4_SB(sb)->s_freeclusters_counter, block, + GFP_KERNEL); + if (ret != 0) + goto err_mb_release; + + ret = percpu_counter_init(&EXT4_SB(sb)->s_dirtyclusters_counter, 0, + GFP_KERNEL); + if (ret != 0) + goto err_freeclusters; + return 0; +err_freeclusters: + percpu_counter_destroy(&EXT4_SB(sb)->s_freeclusters_counter); +err_mb_release: + ext4_mb_release(sb); err_out: kfree(sb->s_bdev->bd_queue); kfree(sb->s_bdev); @@ -79,6 +95,8 @@ err_out: static void mbt_mb_release(struct super_block *sb) { + percpu_counter_destroy(&EXT4_SB(sb)->s_dirtyclusters_counter); + percpu_counter_destroy(&EXT4_SB(sb)->s_freeclusters_counter); ext4_mb_release(sb); kfree(sb->s_bdev->bd_queue); kfree(sb->s_bdev); @@ -333,7 +351,7 @@ static int mbt_kunit_init(struct kunit *test) ext4_mb_mark_context, ext4_mb_mark_context_stub); - /* stub function will be called in mt_mb_init->ext4_mb_init */ + /* stub function will be called in mbt_mb_init->ext4_mb_init */ if (mbt_mb_init(sb) != 0) { mbt_ctx_release(sb); mbt_ext4_free_super_block(sb); |