From: Zhang Yi Date: Fri, 19 Jan 2024 06:11:54 +0000 (+0800) Subject: ext4: add a hint for block bitmap corrupt state in mb_groups X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=19b7a1ff81b75a46dfd66b709e3b1f9dcae3c560;p=users%2Fdwmw2%2Flinux.git ext4: add a hint for block bitmap corrupt state in mb_groups [ Upstream commit 68ee261fb15457ecb17e3683cb4e6a4792ca5b71 ] If one group is marked as block bitmap corrupted, its free blocks cannot be used and its free count is also deducted from the global sbi->s_freeclusters_counter. User might be confused about the absent free space because we can't query the information about corrupted block groups except unreliable error messages in syslog. So add a hint to show block bitmap corrupted groups in mb_groups. Signed-off-by: Zhang Yi Reviewed-by: Jan Kara Link: https://lore.kernel.org/r/20240119061154.1525781-1-yi.zhang@huaweicloud.com Signed-off-by: Theodore Ts'o Signed-off-by: Sasha Levin --- diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index d13d669f90fd5..8dba416aa6c1e 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2950,7 +2950,10 @@ static int ext4_mb_seq_groups_show(struct seq_file *seq, void *v) for (i = 0; i <= 13; i++) seq_printf(seq, " %-5u", i <= blocksize_bits + 1 ? sg.info.bb_counters[i] : 0); - seq_puts(seq, " ]\n"); + seq_puts(seq, " ]"); + if (EXT4_MB_GRP_BBITMAP_CORRUPT(&sg.info)) + seq_puts(seq, " Block bitmap corrupted!"); + seq_puts(seq, "\n"); return 0; }