From b81a040481233e5171cb3fbc62f44636d5ea18b2 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 22 May 2012 13:55:26 +1000 Subject: md/bitmap: make sure reshape request are reflected in superblock. As a reshape may change the sync_size and/or chunk_size, we need to update these whenever we write out the bitmap superblock. Signed-off-by: NeilBrown --- drivers/md/bitmap.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index a35561f8f57d..8f681da00277 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -420,6 +420,9 @@ void bitmap_update_sb(struct bitmap *bitmap) /* Just in case these have been changed via sysfs: */ sb->daemon_sleep = cpu_to_le32(bitmap->mddev->bitmap_info.daemon_sleep/HZ); sb->write_behind = cpu_to_le32(bitmap->mddev->bitmap_info.max_write_behind); + /* This might have been changed by a reshape */ + sb->sync_size = cpu_to_le64(bitmap->mddev->resync_max_sectors); + sb->chunksize = cpu_to_le32(bitmap->mddev->bitmap_info.chunksize); kunmap_atomic(sb); write_page(bitmap, bitmap->storage.sb_page, 1); } -- cgit v1.2.3