From: Josh Triplett Date: Sat, 28 Mar 2020 21:54:01 +0000 (-0700) Subject: ext4: fix incorrect group count in ext4_fill_super error message X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=536d20c0442eda15d3822df110929e6a5d3ef6d9;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git ext4: fix incorrect group count in ext4_fill_super error message 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 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 75f71e52ffc7..b769d209c439 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3951,9 +3951,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) 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));