[PATCH] bcache: writeback rate clamping: make 32 bit safe
From: Michael Lyle <hidden>
Date: 2017-10-16 17:34:47
Also in:
linux-bcache
Subsystem:
bcache (block layer cache), the rest · Maintainers:
Coly Li, Kent Overstreet, Linus Torvalds
Sorry this got through to linux-block, was detected by the kbuilds test robot. NSEC_PER_SEC is a long constant; 2.5 * 10^9 doesn't fit in a signed long constant. Signed-off-by: Michael Lyle <redacted> --- drivers/md/bcache/util.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c
index 4dbe37e82877..e548b8b51322 100644
--- a/drivers/md/bcache/util.c
+++ b/drivers/md/bcache/util.c@@ -238,8 +238,8 @@ uint64_t bch_next_delay(struct bch_ratelimit *d, uint64_t done) * don't let us sleep more than 2.5 seconds (so we can notice/respond * if the control system tells us to speed up!). */ - if (time_before64(now + NSEC_PER_SEC * 5 / 2, d->next)) - d->next = now + NSEC_PER_SEC * 5 / 2; + if (time_before64(now + NSEC_PER_SEC * 5LLU / 2LLU, d->next)) + d->next = now + NSEC_PER_SEC * 5LLU / 2LLU; if (time_after64(now - NSEC_PER_SEC * 2, d->next)) d->next = now - NSEC_PER_SEC * 2;
--
2.11.0