diff options
Diffstat (limited to 'drivers/md/md-bitmap.c')
| -rw-r--r-- | drivers/md/md-bitmap.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index 9d8ac04c2346..e18e21b24210 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -2022,33 +2022,29 @@ int md_bitmap_copy_from_slot(struct mddev *mddev, int slot, } EXPORT_SYMBOL_GPL(md_bitmap_copy_from_slot); - -void md_bitmap_status(struct seq_file *seq, struct bitmap *bitmap) +int md_bitmap_get_stats(struct bitmap *bitmap, struct md_bitmap_stats *stats) { - unsigned long chunk_kb; struct bitmap_counts *counts; + bitmap_super_t *sb; if (!bitmap) - return; + return -ENOENT; + if (bitmap->mddev->bitmap_info.external) + return -ENOENT; + if (!bitmap->storage.sb_page) /* no superblock */ + return -EINVAL; + sb = kmap_local_page(bitmap->storage.sb_page); + stats->sync_size = le64_to_cpu(sb->sync_size); + kunmap_local(sb); counts = &bitmap->counts; + stats->missing_pages = counts->missing_pages; + stats->pages = counts->pages; + stats->file = bitmap->storage.file; - chunk_kb = bitmap->mddev->bitmap_info.chunksize >> 10; - seq_printf(seq, "bitmap: %lu/%lu pages [%luKB], " - "%lu%s chunk", - counts->pages - counts->missing_pages, - counts->pages, - (counts->pages - counts->missing_pages) - << (PAGE_SHIFT - 10), - chunk_kb ? chunk_kb : bitmap->mddev->bitmap_info.chunksize, - chunk_kb ? "KB" : "B"); - if (bitmap->storage.file) { - seq_printf(seq, ", file: "); - seq_file_path(seq, bitmap->storage.file, " \t\n"); - } - - seq_printf(seq, "\n"); + return 0; } +EXPORT_SYMBOL_GPL(md_bitmap_get_stats); int md_bitmap_resize(struct bitmap *bitmap, sector_t blocks, int chunksize, int init) |