From d207450cf2731c6a2afa8c78fb31c7206cd35eba Mon Sep 17 00:00:00 2001 From: Philipp Reisner Date: Thu, 22 Jul 2010 15:27:27 +0200 Subject: [PATCH] drbd: Bugfix: rs_in_flight could become wrong if read_for_csum() requested reschedule later Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_worker.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index fd3e1e9561cb..30b8e466a224 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -512,7 +512,7 @@ int w_make_resync_request(struct drbd_conf *mdev, sector_t sector; const sector_t capacity = drbd_get_capacity(mdev->this_bdev); int max_segment_size; - int number, i, size, pe, mx; + int number, i, rollback_i, size, pe, mx; int align, queued, sndbuf; if (unlikely(cancel)) @@ -613,6 +613,7 @@ next_sector: * be prepared for all stripe sizes of software RAIDs. */ align = 1; + rollback_i = i; for (;;) { if (size + BM_BLOCK_SIZE > max_segment_size) break; @@ -654,6 +655,7 @@ next_sector: case 2: /* Allocation failed */ drbd_rs_complete_io(mdev, sector); mdev->bm_resync_fo = BM_SECT_TO_BIT(sector); + i = rollback_i; goto requeue; /* case 1: everything ok */ } -- 2.30.2