From: Denis Cheng Date: Wed, 17 Oct 2007 06:26:14 +0000 (-0700) Subject: nbd: change a parameter's type to remove a memcpy call X-Git-Tag: v2.6.24-rc1~763 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0cbc591bf884a5662b2fbb21b5c09fa1c1c7b579;p=linux-2.6 nbd: change a parameter's type to remove a memcpy call This memcpy looks so strange, in fact it's merely a pointer dereference, so I change the parameter's type to refer it more directly, this could make the memcpy not needed anymore. In the function nbd_read_stat where nbd_find_request is only once called, the parameter served should be transformed accordingly. Signed-off-by: Denis Cheng Cc: Paul Clements Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index d7a4215799..dc88bcf320 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -231,14 +231,12 @@ error_out: return 1; } -static struct request *nbd_find_request(struct nbd_device *lo, char *handle) +static struct request *nbd_find_request(struct nbd_device *lo, + struct request *xreq) { struct request *req, *tmp; - struct request *xreq; int err; - memcpy(&xreq, handle, sizeof(xreq)); - err = wait_event_interruptible(lo->active_wq, lo->active_req != xreq); if (unlikely(err)) goto out; @@ -293,7 +291,7 @@ static struct request *nbd_read_stat(struct nbd_device *lo) goto harderror; } - req = nbd_find_request(lo, reply.handle); + req = nbd_find_request(lo, *(struct request **)reply.handle); if (unlikely(IS_ERR(req))) { result = PTR_ERR(req); if (result != -ENOENT)