---

yaml
---
r: 140809
b: refs/heads/master
c: f701d35
h: refs/heads/master
i:
  140807: 771f109
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1b49061d400c9e51e3ac2aac026a099fe599b9bb
+refs/heads/master: f701d354075914296474d062f18fc8ee681a2318

trunk/Documentation/kernel-parameters.txt

@@ -869,8 +869,10 @@ and is between 256 and 4096 characters. It is defined in the file
 	icn=		[HW,ISDN]
 			Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
 
-	ide=		[HW] (E)IDE subsystem
-			Format: ide=nodma or ide=doubler
+	ide-core.nodma=	[HW] (E)IDE subsystem
+			Format: =0.0 to prevent dma on hda, =0.1 hdb =1.0 hdc
+			.vlb_clock .pci_clock .noflush .noprobe .nowerr .cdrom
+			.chs .ignore_cable are additional options
 			See Documentation/ide/ide.txt.
 
 	idebus=		[HW] (E)IDE subsystem - VLB/PCI bus speed

trunk/arch/ia64/Kconfig

@@ -641,6 +641,17 @@ config DMAR
 	  and include PCI device scope covered by these DMA
 	  remapping devices.
 
+config DMAR_DEFAULT_ON
+	def_bool y
+	prompt "Enable DMA Remapping Devices by default"
+	depends on DMAR
+	help
+	  Selecting this option will enable a DMAR device at boot time if
+	  one is found. If this option is not selected, DMAR support can
+	  be enabled by passing intel_iommu=on to the kernel. It is
+	  recommended you say N here while the DMAR code remains
+	  experimental.
+
 endmenu
 
 endif

trunk/arch/ia64/kernel/iosapic.c

@@ -507,7 +507,7 @@ static int iosapic_find_sharable_irq(unsigned long trigger, unsigned long pol)
 	if (trigger == IOSAPIC_EDGE)
 		return -EINVAL;
 
-	for (i = 0; i <= NR_IRQS; i++) {
+	for (i = 0; i < NR_IRQS; i++) {
 		info = &iosapic_intr_info[i];
 		if (info->trigger == trigger && info->polarity == pol &&
 		    (info->dmode == IOSAPIC_FIXED ||

trunk/arch/ia64/kernel/unwind.c

@@ -2149,7 +2149,7 @@ unw_remove_unwind_table (void *handle)
 
 	/* next, remove hash table entries for this table */
 
-	for (index = 0; index <= UNW_HASH_SIZE; ++index) {
+	for (index = 0; index < UNW_HASH_SIZE; ++index) {
 		tmp = unw.cache + unw.hash[index];
 		if (unw.hash[index] >= UNW_CACHE_SIZE
 		    || tmp->ip < table->start || tmp->ip >= table->end)

trunk/arch/powerpc/kernel/align.c

@@ -367,27 +367,24 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
 static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
 			   unsigned int flags)
 {
-	char *ptr = (char *) &current->thread.TS_FPR(reg);
-	int i, ret;
+	char *ptr0 = (char *) &current->thread.TS_FPR(reg);
+	char *ptr1 = (char *) &current->thread.TS_FPR(reg+1);
+	int i, ret, sw = 0;
 
 	if (!(flags & F))
 		return 0;
 	if (reg & 1)
 		return 0;	/* invalid form: FRS/FRT must be even */
-	if (!(flags & SW)) {
-		/* not byte-swapped - easy */
-		if (!(flags & ST))
-			ret = __copy_from_user(ptr, addr, 16);
-		else
-			ret = __copy_to_user(addr, ptr, 16);
-	} else {
-		/* each FPR value is byte-swapped separately */
-		ret = 0;
-		for (i = 0; i < 16; ++i) {
-			if (!(flags & ST))
-				ret |= __get_user(ptr[i^7], addr + i);
-			else
-				ret |= __put_user(ptr[i^7], addr + i);
+	if (flags & SW)
+		sw = 7;
+	ret = 0;
+	for (i = 0; i < 8; ++i) {
+		if (!(flags & ST)) {
+			ret |= __get_user(ptr0[i^sw], addr + i);
+			ret |= __get_user(ptr1[i^sw], addr + i + 8);
+		} else {
+			ret |= __put_user(ptr0[i^sw], addr + i);
+			ret |= __put_user(ptr1[i^sw], addr + i + 8);
 		}
 	}
 	if (ret)

trunk/arch/powerpc/lib/copyuser_64.S

@@ -62,18 +62,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 72:	std	r8,8(r3)
 	beq+	3f
 	addi	r3,r3,16
-23:	ld	r9,8(r4)
 .Ldo_tail:
 	bf	cr7*4+1,1f
-	rotldi	r9,r9,32
+23:	lwz	r9,8(r4)
+	addi	r4,r4,4
 73:	stw	r9,0(r3)
 	addi	r3,r3,4
 1:	bf	cr7*4+2,2f
-	rotldi	r9,r9,16
+44:	lhz	r9,8(r4)
+	addi	r4,r4,2
 74:	sth	r9,0(r3)
 	addi	r3,r3,2
 2:	bf	cr7*4+3,3f
-	rotldi	r9,r9,8
+45:	lbz	r9,8(r4)
 75:	stb	r9,0(r3)
 3:	li	r3,0
 	blr
@@ -141,11 +142,24 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 6:	cmpwi	cr1,r5,8
 	addi	r3,r3,32
 	sld	r9,r9,r10
-	ble	cr1,.Ldo_tail
+	ble	cr1,7f
 34:	ld	r0,8(r4)
 	srd	r7,r0,r11
 	or	r9,r7,r9
-	b	.Ldo_tail
+7:
+	bf	cr7*4+1,1f
+	rotldi	r9,r9,32
+94:	stw	r9,0(r3)
+	addi	r3,r3,4
+1:	bf	cr7*4+2,2f
+	rotldi	r9,r9,16
+95:	sth	r9,0(r3)
+	addi	r3,r3,2
+2:	bf	cr7*4+3,3f
+	rotldi	r9,r9,8
+96:	stb	r9,0(r3)
+3:	li	r3,0
+	blr
 
 .Ldst_unaligned:
 	PPC_MTOCRF	0x01,r6		/* put #bytes to 8B bdry into cr7 */
@@ -218,14 +232,16 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 121:
 132:
 	addi	r3,r3,8
-123:
 134:
 135:
 138:
 139:
 140:
 141:
 142:
+123:
+144:
+145:
 
 /*
  * here we have had a fault on a load and r3 points to the first
@@ -309,6 +325,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 187:
 188:
 189:	
+194:
+195:
+196:
 1:
 	ld	r6,-24(r1)
 	ld	r5,-8(r1)
@@ -329,7 +348,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 	.llong	72b,172b
 	.llong	23b,123b
 	.llong	73b,173b
+	.llong	44b,144b
 	.llong	74b,174b
+	.llong	45b,145b
 	.llong	75b,175b
 	.llong	24b,124b
 	.llong	25b,125b
@@ -347,6 +368,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 	.llong	79b,179b
 	.llong	80b,180b
 	.llong	34b,134b
+	.llong	94b,194b
+	.llong	95b,195b
+	.llong	96b,196b
 	.llong	35b,135b
 	.llong	81b,181b
 	.llong	36b,136b

trunk/arch/powerpc/lib/memcpy_64.S

@@ -53,18 +53,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 3:	std	r8,8(r3)
 	beq	3f
 	addi	r3,r3,16
-	ld	r9,8(r4)
 .Ldo_tail:
 	bf	cr7*4+1,1f
-	rotldi	r9,r9,32
+	lwz	r9,8(r4)
+	addi	r4,r4,4
 	stw	r9,0(r3)
 	addi	r3,r3,4
 1:	bf	cr7*4+2,2f
-	rotldi	r9,r9,16
+	lhz	r9,8(r4)
+	addi	r4,r4,2
 	sth	r9,0(r3)
 	addi	r3,r3,2
 2:	bf	cr7*4+3,3f
-	rotldi	r9,r9,8
+	lbz	r9,8(r4)
 	stb	r9,0(r3)
 3:	ld	r3,48(r1)	/* return dest pointer */
 	blr
@@ -133,11 +134,24 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 	cmpwi	cr1,r5,8
 	addi	r3,r3,32
 	sld	r9,r9,r10
-	ble	cr1,.Ldo_tail
+	ble	cr1,6f
 	ld	r0,8(r4)
 	srd	r7,r0,r11
 	or	r9,r7,r9
-	b	.Ldo_tail
+6:
+	bf	cr7*4+1,1f
+	rotldi	r9,r9,32
+	stw	r9,0(r3)
+	addi	r3,r3,4
+1:	bf	cr7*4+2,2f
+	rotldi	r9,r9,16
+	sth	r9,0(r3)
+	addi	r3,r3,2
+2:	bf	cr7*4+3,3f
+	rotldi	r9,r9,8
+	stb	r9,0(r3)
+3:	ld	r3,48(r1)	/* return dest pointer */
+	blr
 
 .Ldst_unaligned:
 	PPC_MTOCRF	0x01,r6		# put #bytes to 8B bdry into cr7

trunk/arch/sparc/kernel/chmc.c

@@ -306,6 +306,7 @@ static int jbusmc_print_dimm(int syndrome_code,
 		buf[1] = '?';
 		buf[2] = '?';
 		buf[3] = '\0';
+		return 0;
 	}
 	p = dp->controller;
 	prop = &p->layout;

trunk/block/blk-merge.c

@@ -38,72 +38,84 @@ void blk_recalc_rq_sectors(struct request *rq, int nsect)
 	}
 }
 
-void blk_recalc_rq_segments(struct request *rq)
+static unsigned int __blk_recalc_rq_segments(struct request_queue *q,
+					     struct bio *bio,
+					     unsigned int *seg_size_ptr)
 {
-	int nr_phys_segs;
 	unsigned int phys_size;
 	struct bio_vec *bv, *bvprv = NULL;
-	int seg_size;
-	int cluster;
-	struct req_iterator iter;
-	int high, highprv = 1;
-	struct request_queue *q = rq->q;
+	int cluster, i, high, highprv = 1;
+	unsigned int seg_size, nr_phys_segs;
+	struct bio *fbio;
 
-	if (!rq->bio)
-		return;
+	if (!bio)
+		return 0;
 
+	fbio = bio;
 	cluster = test_bit(QUEUE_FLAG_CLUSTER, &q->queue_flags);
 	seg_size = 0;
 	phys_size = nr_phys_segs = 0;
-	rq_for_each_segment(bv, rq, iter) {
-		/*
-		 * the trick here is making sure that a high page is never
-		 * considered part of another segment, since that might
-		 * change with the bounce page.
-		 */
-		high = page_to_pfn(bv->bv_page) > q->bounce_pfn;
-		if (high || highprv)
-			goto new_segment;
-		if (cluster) {
-			if (seg_size + bv->bv_len > q->max_segment_size)
-				goto new_segment;
-			if (!BIOVEC_PHYS_MERGEABLE(bvprv, bv))
-				goto new_segment;
-			if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bv))
+	for_each_bio(bio) {
+		bio_for_each_segment(bv, bio, i) {
+			/*
+			 * the trick here is making sure that a high page is
+			 * never considered part of another segment, since that
+			 * might change with the bounce page.
+			 */
+			high = page_to_pfn(bv->bv_page) > q->bounce_pfn;
+			if (high || highprv)
 				goto new_segment;
+			if (cluster) {
+				if (seg_size + bv->bv_len > q->max_segment_size)
+					goto new_segment;
+				if (!BIOVEC_PHYS_MERGEABLE(bvprv, bv))
+					goto new_segment;
+				if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bv))
+					goto new_segment;
+
+				seg_size += bv->bv_len;
+				bvprv = bv;
+				continue;
+			}
+new_segment:
+			if (nr_phys_segs == 1 && seg_size >
+			    fbio->bi_seg_front_size)
+				fbio->bi_seg_front_size = seg_size;
 
-			seg_size += bv->bv_len;
+			nr_phys_segs++;
 			bvprv = bv;
-			continue;
+			seg_size = bv->bv_len;
+			highprv = high;
 		}
-new_segment:
-		if (nr_phys_segs == 1 && seg_size > rq->bio->bi_seg_front_size)
-			rq->bio->bi_seg_front_size = seg_size;
-
-		nr_phys_segs++;
-		bvprv = bv;
-		seg_size = bv->bv_len;
-		highprv = high;
 	}
 
-	if (nr_phys_segs == 1 && seg_size > rq->bio->bi_seg_front_size)
+	if (seg_size_ptr)
+		*seg_size_ptr = seg_size;
+
+	return nr_phys_segs;
+}
+
+void blk_recalc_rq_segments(struct request *rq)
+{
+	unsigned int seg_size = 0, phys_segs;
+
+	phys_segs = __blk_recalc_rq_segments(rq->q, rq->bio, &seg_size);
+
+	if (phys_segs == 1 && seg_size > rq->bio->bi_seg_front_size)
 		rq->bio->bi_seg_front_size = seg_size;
 	if (seg_size > rq->biotail->bi_seg_back_size)
 		rq->biotail->bi_seg_back_size = seg_size;
 
-	rq->nr_phys_segments = nr_phys_segs;
+	rq->nr_phys_segments = phys_segs;
 }
 
 void blk_recount_segments(struct request_queue *q, struct bio *bio)
 {
-	struct request rq;
 	struct bio *nxt = bio->bi_next;
-	rq.q = q;
-	rq.bio = rq.biotail = bio;
+
 	bio->bi_next = NULL;
-	blk_recalc_rq_segments(&rq);
+	bio->bi_phys_segments = __blk_recalc_rq_segments(q, bio, NULL);
 	bio->bi_next = nxt;
-	bio->bi_phys_segments = rq.nr_phys_segments;
 	bio->bi_flags |= (1 << BIO_SEG_VALID);
 }
 EXPORT_SYMBOL(blk_recount_segments);