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-rw-r--r--fs/ext4/balloc.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 79b20d6ae3..591fb3f710 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);
@@ -111,10 +112,8 @@ static unsigned ext4_num_overhead_clusters(struct super_block *sb,
itbl_blk_start = ext4_inode_table(sb, gdp);
itbl_blk_end = itbl_blk_start + sbi->s_itb_per_group - 1;
if (itbl_blk_start <= end && itbl_blk_end >= start) {
- itbl_blk_start = itbl_blk_start >= start ?
- itbl_blk_start : start;
- itbl_blk_end = itbl_blk_end <= end ?
- itbl_blk_end : end;
+ itbl_blk_start = max(itbl_blk_start, start);
+ itbl_blk_end = min(itbl_blk_end, end);
itbl_cluster_start = EXT4_B2C(sbi, itbl_blk_start - start);
itbl_cluster_end = EXT4_B2C(sbi, itbl_blk_end - start);
@@ -274,6 +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);
@@ -468,6 +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);
@@ -563,6 +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);