From b9c4e3dc5895ffc3ca5d1d9a64953bc84d5a2f2b Mon Sep 17 00:00:00 2001
From: scottl <scottl@FreeBSD.org>
Date: Tue, 30 Jul 2013 23:50:09 +0000
Subject: Fix r253823.  Some WIP patches snuck in.

Submitted by:	zont
---
 sys/kern/kern_mutex.c | 20 ++++++--------------
 sys/kern/subr_uio.c   |  8 +-------
 2 files changed, 7 insertions(+), 21 deletions(-)

diff --git a/sys/kern/kern_mutex.c b/sys/kern/kern_mutex.c
index cd1ed7d..a613da8 100644
--- a/sys/kern/kern_mutex.c
+++ b/sys/kern/kern_mutex.c
@@ -218,14 +218,13 @@ __mtx_lock_flags(volatile uintptr_t *c, int opts, const char *file, int line)
 	KASSERT(LOCK_CLASS(&m->lock_object) == &lock_class_mtx_sleep,
 	    ("mtx_lock() of spin mutex %s @ %s:%d", m->lock_object.lo_name,
 	    file, line));
-	WITNESS_CHECKORDER(&m->lock_object, (opts & ~MTX_RECURSE) |
-	    LOP_NEWORDER | LOP_EXCLUSIVE, file, line, NULL);
+	WITNESS_CHECKORDER(&m->lock_object, opts | LOP_NEWORDER | LOP_EXCLUSIVE,
+	    file, line, NULL);
 
 	__mtx_lock(m, curthread, opts, file, line);
 	LOCK_LOG_LOCK("LOCK", &m->lock_object, opts, m->mtx_recurse, file,
 	    line);
-	WITNESS_LOCK(&m->lock_object, (opts & ~MTX_RECURSE) | LOP_EXCLUSIVE,
-	    file, line);
+	WITNESS_LOCK(&m->lock_object, opts | LOP_EXCLUSIVE, file, line);
 	curthread->td_locks++;
 }
 
@@ -272,11 +271,9 @@ __mtx_lock_spin_flags(volatile uintptr_t *c, int opts, const char *file,
 	    ("mtx_lock_spin() of sleep mutex %s @ %s:%d",
 	    m->lock_object.lo_name, file, line));
 	if (mtx_owned(m))
-		KASSERT((m->lock_object.lo_flags & LO_RECURSABLE) != 0 ||
-		    (opts & MTX_RECURSE) != 0,
+		KASSERT((m->lock_object.lo_flags & LO_RECURSABLE) != 0,
 	    ("mtx_lock_spin: recursed on non-recursive mutex %s @ %s:%d\n",
 		    m->lock_object.lo_name, file, line));
-	opts &= ~MTX_RECURSE;
 	WITNESS_CHECKORDER(&m->lock_object, opts | LOP_NEWORDER | LOP_EXCLUSIVE,
 	    file, line, NULL);
 	__mtx_lock_spin(m, curthread, opts, file, line);
@@ -338,14 +335,12 @@ _mtx_trylock_flags_(volatile uintptr_t *c, int opts, const char *file, int line)
 	    ("mtx_trylock() of spin mutex %s @ %s:%d", m->lock_object.lo_name,
 	    file, line));
 
-	if (mtx_owned(m) && ((m->lock_object.lo_flags & LO_RECURSABLE) != 0 ||
-	    (opts & MTX_RECURSE) != 0)) {
+	if (mtx_owned(m) && (m->lock_object.lo_flags & LO_RECURSABLE) != 0) {
 		m->mtx_recurse++;
 		atomic_set_ptr(&m->mtx_lock, MTX_RECURSED);
 		rval = 1;
 	} else
 		rval = _mtx_obtain_lock(m, (uintptr_t)curthread);
-	opts &= ~MTX_RECURSE;
 
 	LOCK_LOG_TRY("LOCK", &m->lock_object, opts, rval, file, line);
 	if (rval) {
@@ -396,18 +391,15 @@ __mtx_lock_sleep(volatile uintptr_t *c, uintptr_t tid, int opts,
 	m = mtxlock2mtx(c);
 
 	if (mtx_owned(m)) {
-		KASSERT((m->lock_object.lo_flags & LO_RECURSABLE) != 0 ||
-		    (opts & MTX_RECURSE) != 0,
+		KASSERT((m->lock_object.lo_flags & LO_RECURSABLE) != 0,
 	    ("_mtx_lock_sleep: recursed on non-recursive mutex %s @ %s:%d\n",
 		    m->lock_object.lo_name, file, line));
-		opts &= ~MTX_RECURSE;
 		m->mtx_recurse++;
 		atomic_set_ptr(&m->mtx_lock, MTX_RECURSED);
 		if (LOCK_LOG_TEST(&m->lock_object, opts))
 			CTR1(KTR_LOCK, "_mtx_lock_sleep: %p recursing", m);
 		return;
 	}
-	opts &= ~MTX_RECURSE;
 
 #ifdef HWPMC_HOOKS
 	PMC_SOFT_CALL( , , lock, failed);
diff --git a/sys/kern/subr_uio.c b/sys/kern/subr_uio.c
index efa483f..1ee265c 100644
--- a/sys/kern/subr_uio.c
+++ b/sys/kern/subr_uio.c
@@ -56,7 +56,6 @@ __FBSDID("$FreeBSD$");
 #include <vm/vm_param.h>
 #include <vm/vm_extern.h>
 #include <vm/vm_page.h>
-#include <vm/vm_pageout.h>
 #include <vm/vm_map.h>
 #ifdef SOCKET_SEND_COW
 #include <vm/vm_object.h>
@@ -123,12 +122,7 @@ retry:
 		if (uobject->backing_object != NULL)
 			pmap_remove(map->pmap, uaddr, uaddr + PAGE_SIZE);
 	}
-	if (vm_page_insert(kern_pg, uobject, upindex)) {
-		VM_OBJECT_WUNLOCK(uobject);
-		VM_WAIT;
-		VM_OBJECT_WLOCK(uobject);
-		goto retry;
-	}
+	vm_page_insert(kern_pg, uobject, upindex);
 	vm_page_dirty(kern_pg);
 	VM_OBJECT_WUNLOCK(uobject);
 	vm_map_lookup_done(map, entry);
-- 
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