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| author | Philipp Reisner | 2010-03-24 16:23:03 +0100 |
|---|---|---|
| committer | Philipp Reisner | 2010-05-18 01:14:43 +0200 |
| commit | 02d9a94bbb0d4e0fec8db6735bdc4ccfaac8f0ce (patch) | |
| tree | f8a2c63b8b84e0aef6d7e8fc920b20c5bb14c1c4 /drivers/block/drbd/drbd_bitmap.c | |
| parent | drbd: made determin_dev_size's parameter an flag enum (diff) | |
| download | kernel-qcow2-linux-02d9a94bbb0d4e0fec8db6735bdc4ccfaac8f0ce.tar.gz kernel-qcow2-linux-02d9a94bbb0d4e0fec8db6735bdc4ccfaac8f0ce.tar.xz kernel-qcow2-linux-02d9a94bbb0d4e0fec8db6735bdc4ccfaac8f0ce.zip | |
drbd: Implemented the set_new_bits parameter for drbd_bm_resize()
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_bitmap.c')
| -rw-r--r-- | drivers/block/drbd/drbd_bitmap.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 3390716898d5..695fb64cba00 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -441,7 +441,7 @@ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len) * In case this is actually a resize, we copy the old bitmap into the new one. * Otherwise, the bitmap is initialized to all bits set. */ -int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity) +int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) { struct drbd_bitmap *b = mdev->bitmap; unsigned long bits, words, owords, obits, *p_addr, *bm; @@ -526,8 +526,12 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity) b->bm_dev_capacity = capacity; if (growing) { - bm_memset(b, owords, 0xff, words-owords); - b->bm_set += bits - obits; + if (set_new_bits) { + bm_memset(b, owords, 0xff, words-owords); + b->bm_set += bits - obits; + } else + bm_memset(b, owords, 0x00, words-owords); + } if (want < have) { |