From 830eb7d56c18ff4c29acd8b0bb48db404660321f Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Thu, 9 Apr 2009 14:09:42 +0000 Subject: [PATCH] RDS: use get_user_pages_fast() Use the new function that is simpler and faster. Signed-off-by: Andy Grover Signed-off-by: David S. Miller --- net/rds/info.c | 5 +---- net/rds/rdma.c | 5 +---- 2 files changed, 2 insertions(+), 8 deletions(-) diff --git a/net/rds/info.c b/net/rds/info.c index 1d885535214..62aeef37aef 100644 --- a/net/rds/info.c +++ b/net/rds/info.c @@ -188,10 +188,7 @@ int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval, ret = -ENOMEM; goto out; } - down_read(¤t->mm->mmap_sem); - ret = get_user_pages(current, current->mm, start, nr_pages, 1, 0, - pages, NULL); - up_read(¤t->mm->mmap_sem); + ret = get_user_pages_fast(start, nr_pages, 1, pages); if (ret != nr_pages) { if (ret > 0) nr_pages = ret; diff --git a/net/rds/rdma.c b/net/rds/rdma.c index e390dc70b9d..8dc83d2caa5 100644 --- a/net/rds/rdma.c +++ b/net/rds/rdma.c @@ -150,10 +150,7 @@ static int rds_pin_pages(unsigned long user_addr, unsigned int nr_pages, { int ret; - down_read(¤t->mm->mmap_sem); - ret = get_user_pages(current, current->mm, user_addr, - nr_pages, write, 0, pages, NULL); - up_read(¤t->mm->mmap_sem); + ret = get_user_pages_fast(user_addr, nr_pages, write, pages); if (ret >= 0 && ret < nr_pages) { while (ret--) -- 2.46.0