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authorPhilipp Reisner <philipp.reisner@linbit.com>2012-08-14 11:46:59 +0200
committerPhilipp Reisner <philipp.reisner@linbit.com>2012-11-09 14:05:51 +0100
commitfef45d297e447d710abcf0cd0bdbf8738ff469eb (patch)
treed4200c3cb2b5168d33566d6f9bf48da36d91f231 /drivers/block/drbd/drbd_int.h
parent5af2e8ce2b463c2cc8e4a074f9d8f660ae7c1d8f (diff)
downloadvexpress-lsk-fef45d297e447d710abcf0cd0bdbf8738ff469eb.tar.gz
drbd: Write all pages of the bitmap after an online resize
We need to write the whole bitmap after we moved the meta data due to an online resize operation. With the support for one peta byte devices bitmap IO was optimized to only write out touched pages. This optimization must be turned off when writing the bitmap after an online resize. This issue was introduced with drbd-8.3.10. The impact of this bug is that after an online resize, the next resync could become larger than expected. 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_int.h')
-rw-r--r--drivers/block/drbd/drbd_int.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 813f50dbe5c..d8b3c88d6f1 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1329,6 +1329,7 @@ extern int drbd_bm_read(struct drbd_conf *mdev) __must_hold(local);
extern void drbd_bm_mark_for_writeout(struct drbd_conf *mdev, int page_nr);
extern int drbd_bm_write(struct drbd_conf *mdev) __must_hold(local);
extern int drbd_bm_write_hinted(struct drbd_conf *mdev) __must_hold(local);
+extern int drbd_bm_write_all(struct drbd_conf *mdev) __must_hold(local);
extern int drbd_bm_write_copy_pages(struct drbd_conf *mdev) __must_hold(local);
extern size_t drbd_bm_words(struct drbd_conf *mdev);
extern unsigned long drbd_bm_bits(struct drbd_conf *mdev);