Merge branch 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull uaccess unification updates from Al Viro:
 "This is the uaccess unification pile. It's _not_ the end of uaccess
  work, but the next batch of that will go into the next cycle. This one
  mostly takes copy_from_user() and friends out of arch/* and gets the
  zero-padding behaviour in sync for all architectures.

  Dealing with the nocache/writethrough mess is for the next cycle;
  fortunately, that's x86-only. Same for cleanups in iov_iter.c (I am
  sold on access_ok() in there, BTW; just not in this pile), same for
  reducing __copy_... callsites, strn*... stuff, etc. - there will be a
  pile about as large as this one in the next merge window.

  This one sat in -next for weeks. -3KLoC"

* 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (96 commits)
  HAVE_ARCH_HARDENED_USERCOPY is unconditional now
  CONFIG_ARCH_HAS_RAW_COPY_USER is unconditional now
  m32r: switch to RAW_COPY_USER
  hexagon: switch to RAW_COPY_USER
  microblaze: switch to RAW_COPY_USER
  get rid of padding, switch to RAW_COPY_USER
  ia64: get rid of copy_in_user()
  ia64: sanitize __access_ok()
  ia64: get rid of 'segment' argument of __do_{get,put}_user()
  ia64: get rid of 'segment' argument of __{get,put}_user_check()
  ia64: add extable.h
  powerpc: get rid of zeroing, switch to RAW_COPY_USER
  esas2r: don't open-code memdup_user()
  alpha: fix stack smashing in old_adjtimex(2)
  don't open-code kernel_setsockopt()
  mips: switch to RAW_COPY_USER
  mips: get rid of tail-zeroing in primitives
  mips: make copy_from_user() zero tail explicitly
  mips: clean and reorder the forest of macros...
  mips: consolidate __invoke_... wrappers
  ...

2 files changed, 2 insertions, 11 deletions

diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index 225690076773..431404dbdad1 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -84,13 +84,10 @@ static struct ctl_table rds_tcp_sysctl_table[] = {
 /* doing it this way avoids calling tcp_sk() */
 void rds_tcp_nonagle(struct socket *sock)
 {
-	mm_segment_t oldfs = get_fs();
 	int val = 1;
 
-	set_fs(KERNEL_DS);
-	sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val,
+	kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, (void *)&val,
 			      sizeof(val));
-	set_fs(oldfs);
 }
 
 u32 rds_tcp_snd_nxt(struct rds_tcp_connection *tc)
diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
index dcf4742083ea..52d11d7725c8 100644
--- a/net/rds/tcp_send.c
+++ b/net/rds/tcp_send.c
@@ -40,13 +40,7 @@
 
 static void rds_tcp_cork(struct socket *sock, int val)
 {
-	mm_segment_t oldfs;
-
-	oldfs = get_fs();
-	set_fs(KERNEL_DS);
-	sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val,
-			      sizeof(val));
-	set_fs(oldfs);
+	kernel_setsockopt(sock, SOL_TCP, TCP_CORK, (void *)&val, sizeof(val));
 }
 
 void rds_tcp_xmit_path_prepare(struct rds_conn_path *cp)