From 5223671bb0315d83f9ad7becbbb9e703aa735bbe Mon Sep 17 00:00:00 2001 From: Philipp Reisner Date: Wed, 28 Apr 2010 14:46:57 +0200 Subject: [PATCH] drbd: Fixed bitmap in case of online-grow without resync The "surplus" bits of the old (smaller) bitmap must be clean in case of online-grow without resync. Note: Reverted 67ae8b80d4a116ab3b7094eb3723506b20c06dff as well, since the lines added by this patch are redundant. The bits get set by the bm_set_surplus(b) call before that. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_bitmap.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index aa7e23c..e3f88d6 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -519,7 +519,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) obits = b->bm_bits; growing = bits > obits; - if (opages) + if (opages && growing && set_new_bits) bm_set_surplus(b); b->bm_pages = npages; @@ -532,9 +532,6 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) if (set_new_bits) { bm_memset(b, owords, 0xff, words-owords); b->bm_set += bits - obits; - __bm_change_bits_to(mdev, obits, - ALIGN(obits, BITS_PER_LONG), - 1, KM_IRQ1); } else bm_memset(b, owords, 0x00, words-owords); -- 2.7.4