[md PATCH 21/24] md/bitmap: make sure reshape request are reflected in superblock.
From: NeilBrown <hidden>
Date: 2012-04-17 08:43:42
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> --- drivers/md/bitmap.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index dc5ec72..d1004b6 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c@@ -418,6 +418,9 @@ 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); }