diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2024-08-26 15:44:12 +0800 |
|---|---|---|
| committer | Song Liu <song@kernel.org> | 2024-08-27 10:14:14 -0700 |
| commit | 38f287d7e495ae00d4481702f44ff7ca79f5c9bc (patch) | |
| tree | 70f15159582cca5084d2111448c3523f2182514f /drivers/md/md.c | |
| parent | 2db4fa1b7e1897908d5cd11b1e22233ff0c6ba49 (diff) | |
md/md-bitmap: replace md_bitmap_status() with a new helper md_bitmap_get_stats()
There are no functional changes, and the new helper will be used in
multiple places in following patches to avoid dereferencing bitmap
directly.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-3-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 23cc77d51676..22731d2717ba 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8370,6 +8370,33 @@ static void md_seq_stop(struct seq_file *seq, void *v) spin_unlock(&all_mddevs_lock); } +static void md_bitmap_status(struct seq_file *seq, struct mddev *mddev) +{ + struct md_bitmap_stats stats; + unsigned long used_pages; + unsigned long chunk_kb; + int err; + + err = md_bitmap_get_stats(mddev->bitmap, &stats); + if (err) + return; + + chunk_kb = mddev->bitmap_info.chunksize >> 10; + used_pages = stats.pages - stats.missing_pages; + + seq_printf(seq, "bitmap: %lu/%lu pages [%luKB], %lu%s chunk", + used_pages, stats.pages, used_pages << (PAGE_SHIFT - 10), + chunk_kb ? chunk_kb : mddev->bitmap_info.chunksize, + chunk_kb ? "KB" : "B"); + + if (stats.file) { + seq_puts(seq, ", file: "); + seq_file_path(seq, stats.file, " \t\n"); + } + + seq_putc(seq, '\n'); +} + static int md_seq_show(struct seq_file *seq, void *v) { struct mddev *mddev; @@ -8453,7 +8480,7 @@ static int md_seq_show(struct seq_file *seq, void *v) } else seq_printf(seq, "\n "); - md_bitmap_status(seq, mddev->bitmap); + md_bitmap_status(seq, mddev); seq_printf(seq, "\n"); } |