| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 27/60] ext4: fix incorrect group count in ext4_fill_super error message | Date | Mon, 20 Apr 2020 14:39:05 +0200 |
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From: Josh Triplett <josh@joshtriplett.org>
commit df41460a21b06a76437af040d90ccee03888e8e5 upstream.
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@joshtriplett.org> Fixes: 4ec1102813798 ("ext4: Add sanity checks for the superblock before mounting the filesystem") Link: https://lore.kernel.org/r/8b957cd1513fcc4550fe675c10bcce2175c33a49.1585431964.git.josh@joshtriplett.org Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/ext4/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4238,9 +4238,9 @@ static int ext4_fill_super(struct super_ EXT4_BLOCKS_PER_GROUP(sb) - 1); do_div(blocks_count, EXT4_BLOCKS_PER_GROUP(sb)); if (blocks_count > ((uint64_t)1<<32) - EXT4_DESC_PER_BLOCK(sb)) { - ext4_msg(sb, KERN_WARNING, "groups count too large: %u " + ext4_msg(sb, KERN_WARNING, "groups count too large: %llu " "(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));
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