diff options
Diffstat (limited to 'drivers/md/bitmap.c')
| -rw-r--r-- | drivers/md/bitmap.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 431da21cb488..ac93d874578a 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1597,6 +1597,27 @@ void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector, bool force) } EXPORT_SYMBOL(bitmap_cond_end_sync); +void bitmap_sync_with_cluster(struct mddev *mddev, + sector_t old_lo, sector_t old_hi, + sector_t new_lo, sector_t new_hi) +{ + struct bitmap *bitmap = mddev->bitmap; + sector_t sector, blocks = 0; + + for (sector = old_lo; sector < new_lo; ) { + bitmap_end_sync(bitmap, sector, &blocks, 0); + sector += blocks; + } + WARN((blocks > new_lo) && old_lo, "alignment is not correct for lo\n"); + + for (sector = old_hi; sector < new_hi; ) { + bitmap_start_sync(bitmap, sector, &blocks, 0); + sector += blocks; + } + WARN((blocks > new_hi) && old_hi, "alignment is not correct for hi\n"); +} +EXPORT_SYMBOL(bitmap_sync_with_cluster); + static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int needed) { /* For each chunk covered by any of these sectors, set the |