diff options
Diffstat (limited to 'drivers/md/bitmap.h')
| -rw-r--r-- | drivers/md/bitmap.h | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h index e2d999a..6bde180 100644 --- a/drivers/md/bitmap.h +++ b/drivers/md/bitmap.h @@ -172,22 +172,25 @@ struct bitmap_page { /* the main bitmap structure - one per mddev */ struct bitmap { - struct bitmap_page *bp; - unsigned long pages; /* total number of pages in the bitmap */ - unsigned long missing_pages; /* number of pages not yet allocated */ - struct mddev *mddev; /* the md device that the bitmap is for */ + struct bitmap_counts { + spinlock_t lock; + struct bitmap_page *bp; + unsigned long pages; /* total number of pages + * in the bitmap */ + unsigned long missing_pages; /* number of pages + * not yet allocated */ + unsigned long chunkshift; /* chunksize = 2^chunkshift + * (for bitops) */ + unsigned long chunks; /* Total number of data + * chunks for the array */ + } counts; - /* bitmap chunksize -- how much data does each bit represent? */ - unsigned long chunkshift; /* chunksize = 2^(chunkshift+9) (for bitops) */ - unsigned long chunks; /* total number of data chunks for the array */ + struct mddev *mddev; /* the md device that the bitmap is for */ __u64 events_cleared; int need_sync; - /* bitmap spinlock */ - spinlock_t lock; - struct bitmap_storage { struct file *file; /* backing disk file */ struct page *sb_page; /* cached copy of the bitmap |
