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ext4: show the default enabled prefetch_block_bitmaps option

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After commit 21175ca434c5 ("ext4: make prefetch_block_bitmaps default"),
we enable 'prefetch_block_bitmaps' by default, but this is not shown in
the '/proc/fs/ext4/sdx/options' procfs interface.

This makes it impossible to distinguish whether the feature is enabled by
default or not, so 'prefetch_block_bitmaps' is shown in the 'options'
procfs interface when prefetch_block_bitmaps is enabled by default.

This makes it easy to notice changes to the default mount options between
versions through the '/proc/fs/ext4/sdx/options' procfs interface.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20241008120134.3758097-1-libaokun@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Baokun Li 2024-10-08 20:01:34 +08:00 committed by Theodore Ts'o
parent 76486b1041
commit fdfa648ab9
1 changed files with 3 additions and 0 deletions
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3
fs/ext4/super.c
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@ -3030,6 +3030,9 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb,
SEQ_OPTS_PUTS("mb_optimize_scan=1");
}
if (nodefs && !test_opt(sb, NO_PREFETCH_BLOCK_BITMAPS))
SEQ_OPTS_PUTS("prefetch_block_bitmaps");
ext4_show_quota_options(seq, sb);
return 0;
}