---

yaml
---
r: 264211
b: refs/heads/master
c: 3be209a
h: refs/heads/master
i:
  264209: b0f3811
  264207: 4dd2158
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 47997d756aa2a84ab577e1b0383cc12d582fc69c
+refs/heads/master: 3be209a8e22cedafc1b6945608b7bb8d9887ab61

trunk/Documentation/cgroups/memory.txt

@@ -380,7 +380,7 @@ will be charged as a new owner of it.
 
 5.2 stat file
 
-memory.stat file includes following statistics
+5.2.1 memory.stat file includes following statistics
 
 # per-memory cgroup local status
 cache		- # of bytes of page cache memory.
@@ -438,6 +438,89 @@ Note:
 	 file_mapped is accounted only when the memory cgroup is owner of page
 	 cache.)
 
+5.2.2 memory.vmscan_stat
+
+memory.vmscan_stat includes statistics information for memory scanning and
+freeing, reclaiming. The statistics shows memory scanning information since
+memory cgroup creation and can be reset to 0 by writing 0 as
+
+ #echo 0 > ../memory.vmscan_stat
+
+This file contains following statistics.
+
+[param]_[file_or_anon]_pages_by_[reason]_[under_heararchy]
+[param]_elapsed_ns_by_[reason]_[under_hierarchy]
+
+For example,
+
+  scanned_file_pages_by_limit indicates the number of scanned
+  file pages at vmscan.
+
+Now, 3 parameters are supported
+
+  scanned - the number of pages scanned by vmscan
+  rotated - the number of pages activated at vmscan
+  freed   - the number of pages freed by vmscan
+
+If "rotated" is high against scanned/freed, the memcg seems busy.
+
+Now, 2 reason are supported
+
+  limit - the memory cgroup's limit
+  system - global memory pressure + softlimit
+           (global memory pressure not under softlimit is not handled now)
+
+When under_hierarchy is added in the tail, the number indicates the
+total memcg scan of its children and itself.
+
+elapsed_ns is a elapsed time in nanosecond. This may include sleep time
+and not indicates CPU usage. So, please take this as just showing
+latency.
+
+Here is an example.
+
+# cat /cgroup/memory/A/memory.vmscan_stat
+scanned_pages_by_limit 9471864
+scanned_anon_pages_by_limit 6640629
+scanned_file_pages_by_limit 2831235
+rotated_pages_by_limit 4243974
+rotated_anon_pages_by_limit 3971968
+rotated_file_pages_by_limit 272006
+freed_pages_by_limit 2318492
+freed_anon_pages_by_limit 962052
+freed_file_pages_by_limit 1356440
+elapsed_ns_by_limit 351386416101
+scanned_pages_by_system 0
+scanned_anon_pages_by_system 0
+scanned_file_pages_by_system 0
+rotated_pages_by_system 0
+rotated_anon_pages_by_system 0
+rotated_file_pages_by_system 0
+freed_pages_by_system 0
+freed_anon_pages_by_system 0
+freed_file_pages_by_system 0
+elapsed_ns_by_system 0
+scanned_pages_by_limit_under_hierarchy 9471864
+scanned_anon_pages_by_limit_under_hierarchy 6640629
+scanned_file_pages_by_limit_under_hierarchy 2831235
+rotated_pages_by_limit_under_hierarchy 4243974
+rotated_anon_pages_by_limit_under_hierarchy 3971968
+rotated_file_pages_by_limit_under_hierarchy 272006
+freed_pages_by_limit_under_hierarchy 2318492
+freed_anon_pages_by_limit_under_hierarchy 962052
+freed_file_pages_by_limit_under_hierarchy 1356440
+elapsed_ns_by_limit_under_hierarchy 351386416101
+scanned_pages_by_system_under_hierarchy 0
+scanned_anon_pages_by_system_under_hierarchy 0
+scanned_file_pages_by_system_under_hierarchy 0
+rotated_pages_by_system_under_hierarchy 0
+rotated_anon_pages_by_system_under_hierarchy 0
+rotated_file_pages_by_system_under_hierarchy 0
+freed_pages_by_system_under_hierarchy 0
+freed_anon_pages_by_system_under_hierarchy 0
+freed_file_pages_by_system_under_hierarchy 0
+elapsed_ns_by_system_under_hierarchy 0
+
 5.3 swappiness
 
 Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only.

trunk/Documentation/networking/dmfe.txt

@@ -1,5 +1,3 @@
-Note: This driver doesn't have a maintainer.
-
 Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver for Linux.
 
 This program is free software; you can redistribute it and/or
@@ -57,6 +55,7 @@ Test and make sure PCI latency is now correct for all cases.
 Authors:
 
 Sten Wang <sten_wang@davicom.com.tw >   : Original Author
+Tobias Ringstrom <tori@unhappy.mine.nu> : Current Maintainer
 
 Contributors:
 

trunk/MAINTAINERS

@@ -1278,6 +1278,7 @@ F:	drivers/input/misc/ati_remote2.c
 ATLX ETHERNET DRIVERS
 M:	Jay Cliburn <jcliburn@gmail.com>
 M:	Chris Snook <chris.snook@gmail.com>
+M:	Jie Yang <jie.yang@atheros.com>
 L:	netdev@vger.kernel.org
 W:	http://sourceforge.net/projects/atl1
 W:	http://atl1.sourceforge.net
@@ -1573,6 +1574,7 @@ F:	drivers/scsi/bfa/
 
 BROCADE BNA 10 GIGABIT ETHERNET DRIVER
 M:	Rasesh Mody <rmody@brocade.com>
+M:	Debashis Dutt <ddutt@brocade.com>
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/bna/
@@ -1756,6 +1758,7 @@ F:	Documentation/zh_CN/
 
 CISCO VIC ETHERNET NIC DRIVER
 M:	Christian Benvenuti <benve@cisco.com>
+M:	Vasanthy Kolluri <vkolluri@cisco.com>
 M:	Roopa Prabhu <roprabhu@cisco.com>
 M:	David Wang <dwang2@cisco.com>
 S:	Supported
@@ -3259,17 +3262,6 @@ F:	Documentation/input/multi-touch-protocol.txt
 F:	drivers/input/input-mt.c
 K:	\b(ABS|SYN)_MT_
 
-INTEL C600 SERIES SAS CONTROLLER DRIVER
-M:	Intel SCU Linux support <intel-linux-scu@intel.com>
-M:	Dan Williams <dan.j.williams@intel.com>
-M:	Dave Jiang <dave.jiang@intel.com>
-M:	Ed Nadolski <edmund.nadolski@intel.com>
-L:	linux-scsi@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git
-S:	Maintained
-F:	drivers/scsi/isci/
-F:	firmware/isci/
-
 INTEL IDLE DRIVER
 M:	Len Brown <lenb@kernel.org>
 L:	linux-pm@lists.linux-foundation.org
@@ -4412,8 +4404,7 @@ L:	netfilter@vger.kernel.org
 L:	coreteam@netfilter.org
 W:	http://www.netfilter.org/
 W:	http://www.iptables.org/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-2.6.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6.git
 S:	Supported
 F:	include/linux/netfilter*
 F:	include/linux/netfilter/
@@ -4783,7 +4774,7 @@ F:	drivers/net/wireless/orinoco/
 
 OSD LIBRARY and FILESYSTEM
 M:	Boaz Harrosh <bharrosh@panasas.com>
-M:	Benny Halevy <bhalevy@tonian.com>
+M:	Benny Halevy <bhalevy@panasas.com>
 L:	osd-dev@open-osd.org
 W:	http://open-osd.org
 T:	git git://git.open-osd.org/open-osd.git
@@ -7209,9 +7200,6 @@ W:	http://opensource.wolfsonmicro.com/content/linux-drivers-wolfson-devices
 S:	Supported
 F:	Documentation/hwmon/wm83??
 F:	drivers/leds/leds-wm83*.c
-F:	drivers/input/misc/wm831x-on.c
-F:	drivers/input/touchscreen/wm831x-ts.c
-F:	drivers/input/touchscreen/wm97*.c
 F:	drivers/mfd/wm8*.c
 F:	drivers/power/wm83*.c
 F:	drivers/rtc/rtc-wm83*.c
@@ -7221,7 +7209,6 @@ F:	drivers/watchdog/wm83*_wdt.c
 F:	include/linux/mfd/wm831x/
 F:	include/linux/mfd/wm8350/
 F:	include/linux/mfd/wm8400*
-F:	include/linux/wm97xx.h
 F:	include/sound/wm????.h
 F:	sound/soc/codecs/wm*
 

trunk/arch/alpha/Kconfig

@@ -51,7 +51,7 @@ config GENERIC_CMOS_UPDATE
         def_bool y
 
 config GENERIC_GPIO
-	bool
+	def_bool y
 
 config ZONE_DMA
 	bool

trunk/arch/um/Kconfig.x86

@@ -10,10 +10,6 @@ config CMPXCHG_LOCAL
 	bool
 	default n
 
-config CMPXCHG_DOUBLE
-	bool
-	default n
-
 source "arch/x86/Kconfig.cpu"
 
 endmenu

trunk/arch/um/Makefile

@@ -41,7 +41,7 @@ KBUILD_CPPFLAGS += -I$(srctree)/$(ARCH_DIR)/sys-$(SUBARCH)
 KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \
 	$(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap	\
 	-Din6addr_loopback=kernel_in6addr_loopback \
-	-Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr
+	-Din6addr_any=kernel_in6addr_any
 
 KBUILD_AFLAGS += $(ARCH_INCLUDE)
 

trunk/arch/um/drivers/line.c

@@ -399,8 +399,8 @@ int line_setup_irq(int fd, int input, int output, struct line *line, void *data)
  * is done under a spinlock.  Checking whether the device is in use is
  * line->tty->count > 1, also under the spinlock.
  *
- * line->count serves to decide whether the device should be enabled or
- * disabled on the host.  If it's equal to 0, then we are doing the
+ * tty->count serves to decide whether the device should be enabled or
+ * disabled on the host.  If it's equal to 1, then we are doing the
  * first open or last close.  Otherwise, open and close just return.
  */
 
@@ -414,16 +414,16 @@ int line_open(struct line *lines, struct tty_struct *tty)
 		goto out_unlock;
 
 	err = 0;
-	if (line->count++)
+	if (tty->count > 1)
 		goto out_unlock;
 
-	BUG_ON(tty->driver_data);
+	spin_unlock(&line->count_lock);
+
 	tty->driver_data = line;
 	line->tty = tty;
 
-	spin_unlock(&line->count_lock);
 	err = enable_chan(line);
-	if (err) /* line_close() will be called by our caller */
+	if (err)
 		return err;
 
 	INIT_DELAYED_WORK(&line->task, line_timer_cb);
@@ -436,7 +436,7 @@ int line_open(struct line *lines, struct tty_struct *tty)
 	chan_window_size(&line->chan_list, &tty->winsize.ws_row,
 			 &tty->winsize.ws_col);
 
-	return 0;
+	return err;
 
 out_unlock:
 	spin_unlock(&line->count_lock);
@@ -460,16 +460,17 @@ void line_close(struct tty_struct *tty, struct file * filp)
 	flush_buffer(line);
 
 	spin_lock(&line->count_lock);
-	BUG_ON(!line->valid);
+	if (!line->valid)
+		goto out_unlock;
 
-	if (--line->count)
+	if (tty->count > 1)
 		goto out_unlock;
 
+	spin_unlock(&line->count_lock);
+
 	line->tty = NULL;
 	tty->driver_data = NULL;
 
-	spin_unlock(&line->count_lock);
-
 	if (line->sigio) {
 		unregister_winch(tty);
 		line->sigio = 0;
@@ -497,7 +498,7 @@ static int setup_one_line(struct line *lines, int n, char *init, int init_prio,
 
 	spin_lock(&line->count_lock);
 
-	if (line->count) {
+	if (line->tty != NULL) {
 		*error_out = "Device is already open";
 		goto out;
 	}
@@ -721,53 +722,41 @@ struct winch {
 	int pid;
 	struct tty_struct *tty;
 	unsigned long stack;
-	struct work_struct work;
 };
 
-static void __free_winch(struct work_struct *work)
+static void free_winch(struct winch *winch, int free_irq_ok)
 {
-	struct winch *winch = container_of(work, struct winch, work);
-	free_irq(WINCH_IRQ, winch);
+	if (free_irq_ok)
+		free_irq(WINCH_IRQ, winch);
+
+	list_del(&winch->list);
 
 	if (winch->pid != -1)
 		os_kill_process(winch->pid, 1);
+	if (winch->fd != -1)
+		os_close_file(winch->fd);
 	if (winch->stack != 0)
 		free_stack(winch->stack, 0);
 	kfree(winch);
 }
 
-static void free_winch(struct winch *winch)
-{
-	int fd = winch->fd;
-	winch->fd = -1;
-	if (fd != -1)
-		os_close_file(fd);
-	list_del(&winch->list);
-	__free_winch(&winch->work);
-}
-
 static irqreturn_t winch_interrupt(int irq, void *data)
 {
 	struct winch *winch = data;
 	struct tty_struct *tty;
 	struct line *line;
-	int fd = winch->fd;
 	int err;
 	char c;
 
-	if (fd != -1) {
-		err = generic_read(fd, &c, NULL);
+	if (winch->fd != -1) {
+		err = generic_read(winch->fd, &c, NULL);
 		if (err < 0) {
 			if (err != -EAGAIN) {
-				winch->fd = -1;
-				list_del(&winch->list);
-				os_close_file(fd);
 				printk(KERN_ERR "winch_interrupt : "
 				       "read failed, errno = %d\n", -err);
 				printk(KERN_ERR "fd %d is losing SIGWINCH "
 				       "support\n", winch->tty_fd);
-				INIT_WORK(&winch->work, __free_winch);
-				schedule_work(&winch->work);
+				free_winch(winch, 0);
 				return IRQ_HANDLED;
 			}
 			goto out;
@@ -839,7 +828,7 @@ static void unregister_winch(struct tty_struct *tty)
 	list_for_each_safe(ele, next, &winch_handlers) {
 		winch = list_entry(ele, struct winch, list);
 		if (winch->tty == tty) {
-			free_winch(winch);
+			free_winch(winch, 1);
 			break;
 		}
 	}
@@ -855,7 +844,7 @@ static void winch_cleanup(void)
 
 	list_for_each_safe(ele, next, &winch_handlers) {
 		winch = list_entry(ele, struct winch, list);
-		free_winch(winch);
+		free_winch(winch, 1);
 	}
 
 	spin_unlock(&winch_handler_lock);