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authorKemeng Shi <shikemeng@huaweicloud.com>2023-08-27 01:47:07 +0800
committerTheodore Ts'o <tytso@mit.edu>2023-10-05 22:32:15 -0400
commit1fc1bd2d18bbade157f7b14270f509ebbd89881b (patch)
tree5c4b84286c3d3c227f58165dec5275b53f6410a7 /fs/ext4/resize.c
parent31458077273b5f883d99bee33a7fb295f155712d (diff)
ext4: calculate free_clusters_count in cluster unit in verify_group_input
The field free_cluster_count in struct ext4_new_group_data should be in units of clusters. In verify_group_input() this field is being filled in units of blocks. Fortunately, we don't support online resizing of bigalloc file systems, and for non-bigalloc file systems, the cluster size == block size. But fix this in case we do support online resizing of bigalloc file systems in the future. Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com> Reviewed-by: Theodore Ts'o <tytso@mit.edu> Link: https://lore.kernel.org/r/20230826174712.4059355-9-shikemeng@huaweicloud.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/resize.c')
-rw-r--r--fs/ext4/resize.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index a370ca1a2bd6..3ad2b1a900ad 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -154,8 +154,9 @@ static int verify_group_input(struct super_block *sb,
overhead = ext4_group_overhead_blocks(sb, group);
metaend = start + overhead;
- input->free_clusters_count = free_blocks_count =
- input->blocks_count - 2 - overhead - sbi->s_itb_per_group;
+ free_blocks_count = input->blocks_count - 2 - overhead -
+ sbi->s_itb_per_group;
+ input->free_clusters_count = EXT4_B2C(sbi, free_blocks_count);
if (test_opt(sb, DEBUG))
printk(KERN_DEBUG "EXT4-fs: adding %s group %u: %u blocks "