---

yaml
---
r: 75383
b: refs/heads/master
c: 22fb53c
h: refs/heads/master
i:
  75381: 318b3c8
  75379: 9c6d4bf
  75375: 896a836
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e452e94e21e8f4a3c2ff045b301ca21c1f6d03bf
+refs/heads/master: 22fb53c943b0ad4f86639bccb7ad8753be8ce435

trunk/block/blktrace.c

@@ -25,7 +25,6 @@
 #include <linux/time.h>
 #include <asm/uaccess.h>
 
-static DEFINE_PER_CPU(unsigned long long, blk_trace_cpu_offset) = { 0, };
 static unsigned int blktrace_seq __read_mostly = 1;
 
 /*
@@ -41,7 +40,7 @@ static void trace_note(struct blk_trace *bt, pid_t pid, int action,
 		const int cpu = smp_processor_id();
 
 		t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION;
-		t->time = cpu_clock(cpu) - per_cpu(blk_trace_cpu_offset, cpu);
+		t->time = ktime_to_ns(ktime_get());
 		t->device = bt->dev;
 		t->action = action;
 		t->pid = pid;
@@ -159,7 +158,7 @@ void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
 
 		t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION;
 		t->sequence = ++(*sequence);
-		t->time = cpu_clock(cpu) - per_cpu(blk_trace_cpu_offset, cpu);
+		t->time = ktime_to_ns(ktime_get());
 		t->sector = sector;
 		t->bytes = bytes;
 		t->action = what;
@@ -179,7 +178,7 @@ void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
 EXPORT_SYMBOL_GPL(__blk_add_trace);
 
 static struct dentry *blk_tree_root;
-static struct mutex blk_tree_mutex;
+static DEFINE_MUTEX(blk_tree_mutex);
 static unsigned int root_users;
 
 static inline void blk_remove_root(void)
@@ -505,77 +504,3 @@ void blk_trace_shutdown(struct request_queue *q)
 		blk_trace_remove(q);
 	}
 }
-
-/*
- * Average offset over two calls to cpu_clock() with a gettimeofday()
- * in the middle
- */
-static void blk_check_time(unsigned long long *t, int this_cpu)
-{
-	unsigned long long a, b;
-	struct timeval tv;
-
-	a = cpu_clock(this_cpu);
-	do_gettimeofday(&tv);
-	b = cpu_clock(this_cpu);
-
-	*t = tv.tv_sec * 1000000000 + tv.tv_usec * 1000;
-	*t -= (a + b) / 2;
-}
-
-/*
- * calibrate our inter-CPU timings
- */
-static void blk_trace_check_cpu_time(void *data)
-{
-	unsigned long long *t;
-	int this_cpu = get_cpu();
-
-	t = &per_cpu(blk_trace_cpu_offset, this_cpu);
-
-	/*
-	 * Just call it twice, hopefully the second call will be cache hot
-	 * and a little more precise
-	 */
-	blk_check_time(t, this_cpu);
-	blk_check_time(t, this_cpu);
-
-	put_cpu();
-}
-
-static void blk_trace_set_ht_offsets(void)
-{
-#if defined(CONFIG_SCHED_SMT)
-	int cpu, i;
-
-	/*
-	 * now make sure HT siblings have the same time offset
-	 */
-	preempt_disable();
-	for_each_online_cpu(cpu) {
-		unsigned long long *cpu_off, *sibling_off;
-
-		for_each_cpu_mask(i, per_cpu(cpu_sibling_map, cpu)) {
-			if (i == cpu)
-				continue;
-
-			cpu_off = &per_cpu(blk_trace_cpu_offset, cpu);
-			sibling_off = &per_cpu(blk_trace_cpu_offset, i);
-			*sibling_off = *cpu_off;
-		}
-	}
-	preempt_enable();
-#endif
-}
-
-static __init int blk_trace_init(void)
-{
-	mutex_init(&blk_tree_mutex);
-	on_each_cpu(blk_trace_check_cpu_time, NULL, 1, 1);
-	blk_trace_set_ht_offsets();
-
-	return 0;
-}
-
-module_init(blk_trace_init);
-

trunk/drivers/block/loop.c

@@ -610,7 +610,7 @@ static int loop_thread(void *data)
 static int loop_switch(struct loop_device *lo, struct file *file)
 {
 	struct switch_request w;
-	struct bio *bio = bio_alloc(GFP_KERNEL, 1);
+	struct bio *bio = bio_alloc(GFP_KERNEL, 0);
 	if (!bio)
 		return -ENOMEM;
 	init_completion(&w.wait);

trunk/drivers/ide/ide-acpi.c

@@ -85,6 +85,8 @@ static const struct dmi_system_id ide_acpi_dmi_table[] = {
 			DMI_MATCH(DMI_BIOS_VERSION, "KAM1.60")
 		},
 	},
+
+	{ }	/* terminate list */
 };
 
 static int ide_acpi_blacklist(void)

trunk/drivers/mtd/chips/cfi_cmdset_0001.c

@@ -1504,9 +1504,12 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
 	int ret, wbufsize, word_gap, words;
 	const struct kvec *vec;
 	unsigned long vec_seek;
+	unsigned long initial_adr;
+	int initial_len = len;
 
 	wbufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize;
 	adr += chip->start;
+	initial_adr = adr;
 	cmd_adr = adr & ~(wbufsize-1);
 
 	/* Let's determine this according to the interleave only once */
@@ -1519,7 +1522,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
 		return ret;
 	}
 
-	XIP_INVAL_CACHED_RANGE(map, adr, len);
+	XIP_INVAL_CACHED_RANGE(map, initial_adr, initial_len);
 	ENABLE_VPP(map);
 	xip_disable(map, chip, cmd_adr);
 
@@ -1610,7 +1613,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
 	chip->state = FL_WRITING;
 
 	ret = INVAL_CACHE_AND_WAIT(map, chip, cmd_adr,
-				   adr, len,
+				   initial_adr, initial_len,
 				   chip->buffer_write_time);
 	if (ret) {
 		map_write(map, CMD(0x70), cmd_adr);

trunk/drivers/video/ps3fb.c

@@ -443,8 +443,6 @@ static int ps3fb_sync(struct fb_info *info, u32 frame)
 	u32 ddr_line_length, xdr_line_length;
 	u64 ddr_base, xdr_base;
 
-	acquire_console_sem();
-
 	if (frame > par->num_frames - 1) {
 		dev_dbg(info->device, "%s: invalid frame number (%u)\n",
 			__func__, frame);
@@ -464,7 +462,6 @@ static int ps3fb_sync(struct fb_info *info, u32 frame)
 			 xdr_line_length);
 
 out:
-	release_console_sem();
 	return error;
 }
 
@@ -479,7 +476,10 @@ static int ps3fb_release(struct fb_info *info, int user)
 	if (atomic_dec_and_test(&ps3fb.f_count)) {
 		if (atomic_read(&ps3fb.ext_flip)) {
 			atomic_set(&ps3fb.ext_flip, 0);
-			ps3fb_sync(info, 0);	/* single buffer */
+			if (!try_acquire_console_sem()) {
+				ps3fb_sync(info, 0);	/* single buffer */
+				release_console_sem();
+			}
 		}
 	}
 	return 0;
@@ -865,7 +865,9 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 			break;
 
 		dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
+		acquire_console_sem();
 		retval = ps3fb_sync(info, val);
+		release_console_sem();
 		break;
 
 	default:
@@ -885,7 +887,9 @@ static int ps3fbd(void *arg)
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (ps3fb.is_kicked) {
 			ps3fb.is_kicked = 0;
+			acquire_console_sem();
 			ps3fb_sync(info, 0);	/* single buffer */
+			release_console_sem();
 		}
 		schedule();
 	}
@@ -1234,12 +1238,6 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
 	ps3fb_flip_ctl(0, &ps3fb);	/* flip off */
 	ps3fb.dinfo->irq.mask = 0;
 
-	if (info) {
-		unregister_framebuffer(info);
-		fb_dealloc_cmap(&info->cmap);
-		framebuffer_release(info);
-	}
-
 	ps3av_register_flip_ctl(NULL, NULL);
 	if (ps3fb.task) {
 		struct task_struct *task = ps3fb.task;
@@ -1250,6 +1248,12 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
 		free_irq(ps3fb.irq_no, &dev->core);
 		ps3_irq_plug_destroy(ps3fb.irq_no);
 	}
+	if (info) {
+		unregister_framebuffer(info);
+		fb_dealloc_cmap(&info->cmap);
+		framebuffer_release(info);
+		info = dev->core.driver_data = NULL;
+	}
 	iounmap((u8 __iomem *)ps3fb.dinfo);
 
 	status = lv1_gpu_context_free(ps3fb.context_handle);

trunk/include/linux/scatterlist.h

@@ -191,8 +191,8 @@ static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents,
 	/*
 	 * offset and length are unused for chain entry.  Clear them.
 	 */
-	prv->offset = 0;
-	prv->length = 0;
+	prv[prv_nents - 1].offset = 0;
+	prv[prv_nents - 1].length = 0;
 
 	/*
 	 * Set lowest bit to indicate a link pointer, and make sure to clear