[PATCH] ext4: Fix incorrect group count in ext4_fill_super error message

From: Josh Triplett
Date: Sat Mar 28 2020 - 17:54:17 EST


ext4_fill_super doublechecks the number of groups before mounting; if
that check fails, the resulting error message prints the group count
from the ext4_sb_info sbi, which hasn't been set yet. Print the freshly
computed group count instead (which at that point has just been computed
in "blocks_count").

Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
Fixes: 4ec1102813798 ("ext4: Add sanity checks for the superblock before mounting the filesystem")
---
fs/ext4/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0c7c4adb664e..7f5f37653a03 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4288,7 +4288,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
if (blocks_count > ((uint64_t)1<<32) - EXT4_DESC_PER_BLOCK(sb)) {
ext4_msg(sb, KERN_WARNING, "groups count too large: %u "
"(block count %llu, first data block %u, "
- "blocks per group %lu)", sbi->s_groups_count,
+ "blocks per group %lu)", blocks_count,
ext4_blocks_count(es),
le32_to_cpu(es->s_first_data_block),
EXT4_BLOCKS_PER_GROUP(sb));
--
2.26.0