From: Andreas Gruenbacher Date: Fri, 28 Jan 2011 12:28:51 +0000 (+0100) Subject: drbd: Remove redundant check X-Git-Tag: firefly_0821_release~3680^2~1419^2~18^2~438 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1b3bb47d526c63a845e3374d6272a67fbe20a468;p=firefly-linux-kernel-4.4.55.git drbd: Remove redundant check Opening a device only succeeds on a primary node, or when explicitly setting the allow_oos module parameter to allow opening the device read-only on a secondary node. There is no other way that a request can get into drbd_make_request(), so this code cannot trigger. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index aab1acdd4fa4..cfa5fba5303c 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -997,39 +997,12 @@ fail_and_free_req: return ret; } -/* helper function for drbd_make_request - * if we can determine just by the mdev (state) that this request will fail, - * return 1 - * otherwise return 0 - */ -static int drbd_fail_request_early(struct drbd_conf *mdev, int is_write) -{ - if (mdev->state.role != R_PRIMARY && - (!allow_oos || is_write)) { - if (__ratelimit(&drbd_ratelimit_state)) { - dev_err(DEV, "Process %s[%u] tried to %s; " - "since we are not in Primary state, " - "we cannot allow this\n", - current->comm, current->pid, - is_write ? "WRITE" : "READ"); - } - return 1; - } - - return 0; -} - int drbd_make_request(struct request_queue *q, struct bio *bio) { unsigned int s_enr, e_enr; struct drbd_conf *mdev = (struct drbd_conf *) q->queuedata; unsigned long start_time; - if (drbd_fail_request_early(mdev, bio_data_dir(bio) & WRITE)) { - bio_endio(bio, -EPERM); - return 0; - } - start_time = jiffies; /*