Commit b81a0404 authored by NeilBrown's avatar NeilBrown
Browse files

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: default avatarNeilBrown <neilb@suse.de>
parent d60b479d

drivers/md/bitmap.c

+3 −0
Original line number Diff line number Diff line
@@ -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);

}