Merge branch 'akpm' (fixes from Andrew)

Merge misc fixes from Andrew Morton.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  alpha: boot: fix build breakage introduced by system.h disintegration
  memcg: initialize kmem-cache destroying work earlier
  Randy has moved
  ksm: fix m68k build: only NUMA needs pfn_to_nid
  dmi_scan: fix missing check for _DMI_ signature in smbios_present()
  Revert parts of "hlist: drop the node parameter from iterators"
  idr: remove WARN_ON_ONCE() on negative IDs
  mm/mempolicy.c: fix sp_node_init() argument ordering
  mm/mempolicy.c: fix wrong sp_node insertion
  ipc: don't allocate a copy larger than max
  ipc: fix potential oops when src msg > 4k w/ MSG_COPY

CREDITS

@@ -953,11 +953,11 @@ S: Blacksburg, Virginia 24061
 S: USA
 
 N: Randy Dunlap
-E: rdunlap@xenotime.net
-W: http://www.xenotime.net/linux/linux.html
-W: http://www.linux-usb.org
+E: rdunlap@infradead.org
+W: http://www.infradead.org/~rdunlap/
 D: Linux-USB subsystem, USB core/UHCI/printer/storage drivers
 D: x86 SMP, ACPI, bootflag hacking
+D: documentation, builds
 S: (ask for current address)
 S: USA
 

Documentation/SubmittingPatches

@@ -60,8 +60,7 @@ own source tree.  For example:
 "dontdiff" is a list of files which are generated by the kernel during
 the build process, and should be ignored in any diff(1)-generated
 patch.  The "dontdiff" file is included in the kernel tree in
-2.6.12 and later.  For earlier kernel versions, you can get it
-from <http://www.xenotime.net/linux/doc/dontdiff>.
+2.6.12 and later.
 
 Make sure your patch does not include any extra files which do not
 belong in a patch submission.  Make sure to review your patch -after-

Documentation/printk-formats.txt

@@ -170,5 +170,5 @@ Reminder: sizeof() result is of type size_t.
 Thank you for your cooperation and attention.
 
 
-By Randy Dunlap <rdunlap@xenotime.net> and
+By Randy Dunlap <rdunlap@infradead.org> and
 Andrew Murray <amurray@mpc-data.co.uk>

arch/alpha/boot/head.S

@@ -4,6 +4,7 @@
  * initial bootloader stuff..
  */
 
+#include <asm/pal.h>
 
 	.set noreorder
 	.globl	__start

drivers/firmware/dmi_scan.c

@@ -442,7 +442,6 @@ static int __init dmi_present(const char __iomem *p)
 static int __init smbios_present(const char __iomem *p)
 {
 	u8 buf[32];
-	int offset = 0;
 
 	memcpy_fromio(buf, p, 32);
 	if ((buf[5] < 32) && dmi_checksum(buf, buf[5])) {
@@ -461,9 +460,9 @@ static int __init smbios_present(const char __iomem *p)
 			dmi_ver = 0x0206;
 			break;
 		}
-		offset = 16;
+		return memcmp(p + 16, "_DMI_", 5) || dmi_present(p + 16);
 	}
-	return dmi_present(buf + offset);
+	return 1;
 }
 
 void __init dmi_scan_machine(void)

ipc/msg.c

@@ -820,15 +820,17 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp,
 	struct msg_msg *copy = NULL;
 	unsigned long copy_number = 0;
 
+	ns = current->nsproxy->ipc_ns;
+
 	if (msqid < 0 || (long) bufsz < 0)
 		return -EINVAL;
 	if (msgflg & MSG_COPY) {
-		copy = prepare_copy(buf, bufsz, msgflg, &msgtyp, &copy_number);
+		copy = prepare_copy(buf, min_t(size_t, bufsz, ns->msg_ctlmax),
+				    msgflg, &msgtyp, &copy_number);
 		if (IS_ERR(copy))
 			return PTR_ERR(copy);
 	}
 	mode = convert_mode(&msgtyp, msgflg);
-	ns = current->nsproxy->ipc_ns;
 
 	msq = msg_lock_check(ns, msqid);
 	if (IS_ERR(msq)) {

ipc/msgutil.c

@@ -117,9 +117,6 @@ struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst)
 	if (alen > DATALEN_MSG)
 		alen = DATALEN_MSG;
 
-	dst->next = NULL;
-	dst->security = NULL;
-
 	memcpy(dst + 1, src + 1, alen);
 
 	len -= alen;

kernel/smpboot.c

@@ -131,7 +131,7 @@ static int smpboot_thread_fn(void *data)
 			continue;
 		}
 
-		//BUG_ON(td->cpu != smp_processor_id());
+		BUG_ON(td->cpu != smp_processor_id());
 
 		/* Check for state change setup */
 		switch (td->status) {

lib/idr.c

@@ -569,8 +569,7 @@ void idr_remove(struct idr *idp, int id)
 	struct idr_layer *p;
 	struct idr_layer *to_free;
 
-	/* see comment in idr_find_slowpath() */
-	if (WARN_ON_ONCE(id < 0))
+	if (id < 0)
 		return;
 
 	sub_remove(idp, (idp->layers - 1) * IDR_BITS, id);
@@ -667,15 +666,7 @@ void *idr_find_slowpath(struct idr *idp, int id)
 	int n;
 	struct idr_layer *p;
 
-	/*
-	 * If @id is negative, idr_find() used to ignore the sign bit and
-	 * performed lookup with the rest of bits, which is weird and can
-	 * lead to very obscure bugs.  We're now returning NULL for all
-	 * negative IDs but just in case somebody was depending on the sign
-	 * bit being ignored, let's trigger WARN_ON_ONCE() so that they can
-	 * be detected and fixed.  WARN_ON_ONCE() can later be removed.
-	 */
-	if (WARN_ON_ONCE(id < 0))
+	if (id < 0)
 		return NULL;
 
 	p = rcu_dereference_raw(idp->top);
@@ -824,8 +815,7 @@ void *idr_replace(struct idr *idp, void *ptr, int id)
 	int n;
 	struct idr_layer *p, *old_p;
 
-	/* see comment in idr_find_slowpath() */
-	if (WARN_ON_ONCE(id < 0))
+	if (id < 0)
 		return ERR_PTR(-EINVAL);
 
 	p = idp->top;

mm/ksm.c

@@ -489,7 +489,7 @@ out:		page = NULL;
  */
 static inline int get_kpfn_nid(unsigned long kpfn)
 {
-	return ksm_merge_across_nodes ? 0 : pfn_to_nid(kpfn);
+	return ksm_merge_across_nodes ? 0 : NUMA(pfn_to_nid(kpfn));
 }
 
 static void remove_node_from_stable_tree(struct stable_node *stable_node)

mm/memcontrol.c

@@ -3012,6 +3012,8 @@ void memcg_update_array_size(int num)
 		memcg_limited_groups_array_size = memcg_caches_array_size(num);
 }
 
+static void kmem_cache_destroy_work_func(struct work_struct *w);
+
 int memcg_update_cache_size(struct kmem_cache *s, int num_groups)
 {
 	struct memcg_cache_params *cur_params = s->memcg_params;
@@ -3031,6 +3033,8 @@ int memcg_update_cache_size(struct kmem_cache *s, int num_groups)
 			return -ENOMEM;
 		}
 
+		INIT_WORK(&s->memcg_params->destroy,
+				kmem_cache_destroy_work_func);
 		s->memcg_params->is_root_cache = true;
 
 		/*
@@ -3078,6 +3082,8 @@ int memcg_register_cache(struct mem_cgroup *memcg, struct kmem_cache *s,
 	if (!s->memcg_params)
 		return -ENOMEM;
 
+	INIT_WORK(&s->memcg_params->destroy,
+			kmem_cache_destroy_work_func);
 	if (memcg) {
 		s->memcg_params->memcg = memcg;
 		s->memcg_params->root_cache = root_cache;
@@ -3358,8 +3364,6 @@ static void mem_cgroup_destroy_all_caches(struct mem_cgroup *memcg)
 	list_for_each_entry(params, &memcg->memcg_slab_caches, list) {
 		cachep = memcg_params_to_cache(params);
 		cachep->memcg_params->dead = true;
-		INIT_WORK(&cachep->memcg_params->destroy,
-				  kmem_cache_destroy_work_func);
 		schedule_work(&cachep->memcg_params->destroy);
 	}
 	mutex_unlock(&memcg->slab_caches_mutex);

mm/mempolicy.c

@@ -2390,9 +2390,9 @@ restart:
 
 				*mpol_new = *n->policy;
 				atomic_set(&mpol_new->refcnt, 1);
-				sp_node_init(n_new, n->end, end, mpol_new);
-				sp_insert(sp, n_new);
+				sp_node_init(n_new, end, n->end, mpol_new);
 				n->end = start;
+				sp_insert(sp, n_new);
 				n_new = NULL;
 				mpol_new = NULL;
 				break;

net/9p/trans_virtio.c

@@ -655,7 +655,7 @@ static struct p9_trans_module p9_virtio_trans = {
 	.create = p9_virtio_create,
 	.close = p9_virtio_close,
 	.request = p9_virtio_request,
-	//.zc_request = p9_virtio_zc_request,
+	.zc_request = p9_virtio_zc_request,
 	.cancel = p9_virtio_cancel,
 	/*
 	 * We leave one entry for input and one entry for response