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| author | Kemeng Shi <shikemeng@huaweicloud.com> | 2023-09-28 18:04:05 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-10-06 04:32:16 +0200 |
| commit | bdefd689b7ff0eadc3b29dc6c66556617bd1ed42 (patch) | |
| tree | dc958ed136ee0d292023425a7bff361a28285cc9 /fs/ext4/balloc.c | |
| parent | ext4: call ext4_mb_mark_context in ext4_group_add_blocks() (diff) | |
| download | linux-bdefd689b7ff0eadc3b29dc6c66556617bd1ed42.tar.xz linux-bdefd689b7ff0eadc3b29dc6c66556617bd1ed42.zip | |
ext4: add some kunit stub for mballoc kunit test
Multiblocks allocation will read and write block bitmap and group
descriptor which reside on disk. Add kunit stub to function
ext4_get_group_desc, ext4_read_block_bitmap_nowait, ext4_wait_block_bitmap
and ext4_mb_mark_context to avoid real IO to disk.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20230928160407.142069-11-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/balloc.c')
| -rw-r--r-- | fs/ext4/balloc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index 4d08bb2bd184..591fb3f710be 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -22,6 +22,7 @@ #include "mballoc.h" #include <trace/events/ext4.h> +#include <kunit/static_stub.h> static unsigned ext4_num_base_meta_clusters(struct super_block *sb, ext4_group_t block_group); @@ -272,6 +273,9 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb, struct ext4_sb_info *sbi = EXT4_SB(sb); struct buffer_head *bh_p; + KUNIT_STATIC_STUB_REDIRECT(ext4_get_group_desc, + sb, block_group, bh); + if (block_group >= ngroups) { ext4_error(sb, "block_group >= groups_count - block_group = %u," " groups_count = %u", block_group, ngroups); @@ -466,6 +470,9 @@ ext4_read_block_bitmap_nowait(struct super_block *sb, ext4_group_t block_group, ext4_fsblk_t bitmap_blk; int err; + KUNIT_STATIC_STUB_REDIRECT(ext4_read_block_bitmap_nowait, + sb, block_group, ignore_locked); + desc = ext4_get_group_desc(sb, block_group, NULL); if (!desc) return ERR_PTR(-EFSCORRUPTED); @@ -561,6 +568,9 @@ int ext4_wait_block_bitmap(struct super_block *sb, ext4_group_t block_group, { struct ext4_group_desc *desc; + KUNIT_STATIC_STUB_REDIRECT(ext4_wait_block_bitmap, + sb, block_group, bh); + if (!buffer_new(bh)) return 0; desc = ext4_get_group_desc(sb, block_group, NULL); |