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Message-Id: <20240119061154.1525781-1-yi.zhang@huaweicloud.com> Date: Fri, 19 Jan 2024 14:11:54 +0800 From: Zhang Yi <yi.zhang@...weicloud.com> To: linux-ext4@...r.kernel.org Cc: tytso@....edu, adilger.kernel@...ger.ca, jack@...e.cz, yi.zhang@...wei.com, yi.zhang@...weicloud.com, chengzhihao1@...wei.com, yukuai3@...wei.com Subject: [PATCH] ext4: add a hint for block bitmap corrupt state in mb_groups From: Zhang Yi <yi.zhang@...wei.com> 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 <yi.zhang@...wei.com> --- fs/ext4/mballoc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index d72b5e3c92ec..641c9be8e25e 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3035,7 +3035,10 @@ 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; } -- 2.39.2
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