Merge commit 'v2.6.27' into timers/hpet

15 files changed, 92 insertions, 35 deletions

diff --git a/Documentation/ABI/testing/sysfs-gpio b/Documentation/ABI/testing/sysfs-gpio
new file mode 100644
index 000000000000..8aab8092ad35
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-gpio
@@ -0,0 +1,26 @@
+What:           /sys/class/gpio/
+Date:           July 2008
+KernelVersion:  2.6.27
+Contact:        David Brownell <dbrownell@users.sourceforge.net>
+Description:
+
+  As a Kconfig option, individual GPIO signals may be accessed from
+  userspace.  GPIOs are only made available to userspace by an explicit
+  "export" operation.  If a given GPIO is not claimed for use by
+  kernel code, it may be exported by userspace (and unexported later).
+  Kernel code may export it for complete or partial access.
+
+  GPIOs are identified as they are inside the kernel, using integers in
+  the range 0..INT_MAX.  See Documentation/gpio.txt for more information.
+
+    /sys/class/gpio
+        /export ... asks the kernel to export a GPIO to userspace
+        /unexport ... to return a GPIO to the kernel
+        /gpioN ... for each exported GPIO #N
+            /value ... always readable, writes fail for input GPIOs
+            /direction ... r/w as: in, out (default low); write: high, low
+        /gpiochipN ... for each gpiochip; #N is its first GPIO
+            /base ... (r/o) same as N
+            /label ... (r/o) descriptive, not necessarily unique
+            /ngpio ... (r/o) number of GPIOs; numbered N to N + (ngpio - 1)
+
diff --git a/Documentation/DMA-mapping.txt b/Documentation/DMA-mapping.txt
index b463ecd0c7ce..c74fec8c2351 100644
--- a/Documentation/DMA-mapping.txt
+++ b/Documentation/DMA-mapping.txt
@@ -740,7 +740,7 @@ failure can be determined by:
         dma_addr_t dma_handle;
 
         dma_handle = pci_map_single(pdev, addr, size, direction);
-        if (pci_dma_mapping_error(dma_handle)) {
+        if (pci_dma_mapping_error(pdev, dma_handle)) {
                 /*
                  * reduce current DMA mapping usage,
                  * delay and try again later or
diff --git a/Documentation/HOWTO b/Documentation/HOWTO
index c2371c5a98f9..48a3955f05fc 100644
--- a/Documentation/HOWTO
+++ b/Documentation/HOWTO
@@ -77,7 +77,8 @@ documentation files are also added which explain how to use the feature.
 When a kernel change causes the interface that the kernel exposes to
 userspace to change, it is recommended that you send the information or
 a patch to the manual pages explaining the change to the manual pages
-maintainer at mtk.manpages@gmail.com.
+maintainer at mtk.manpages@gmail.com, and CC the list
+linux-api@vger.kernel.org.
 
 Here is a list of files that are in the kernel source tree that are
 required reading:
diff --git a/Documentation/SubmitChecklist b/Documentation/SubmitChecklist
index da10e0714241..21f0795af20f 100644
--- a/Documentation/SubmitChecklist
+++ b/Documentation/SubmitChecklist
@@ -67,6 +67,8 @@ kernel patches.
 
 19: All new userspace interfaces are documented in Documentation/ABI/.
     See Documentation/ABI/README for more information.
+    Patches that change userspace interfaces should be CCed to
+    linux-api@vger.kernel.org.
 
 20: Check that it all passes `make headers_check'.
 
diff --git a/Documentation/cpu-freq/index.txt b/Documentation/cpu-freq/index.txt
index ffdb5323df37..3d0b915035b9 100644
--- a/Documentation/cpu-freq/index.txt
+++ b/Documentation/cpu-freq/index.txt
@@ -35,11 +35,9 @@ Mailing List
 ------------
 There is a CPU frequency changing CVS commit and general list where
 you can report bugs, problems or submit patches. To post a message,
-send an email to cpufreq@lists.linux.org.uk, to subscribe go to
-http://lists.linux.org.uk/mailman/listinfo/cpufreq. Previous post to the
-mailing list are available to subscribers at
-http://lists.linux.org.uk/mailman/private/cpufreq/.
-
+send an email to cpufreq@vger.kernel.org, to subscribe go to
+http://vger.kernel.org/vger-lists.html#cpufreq and follow the
+instructions there.
 
 Links
 -----
@@ -50,7 +48,7 @@ how to access the CVS repository:
 * http://cvs.arm.linux.org.uk/
 
 the CPUFreq Mailing list:
-* http://lists.linux.org.uk/mailman/listinfo/cpufreq
+* http://vger.kernel.org/vger-lists.html#cpufreq
 
 Clock and voltage scaling for the SA-1100:
 * http://www.lartmaker.nl/projects/scaling
diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt
index 1f5a924d1e56..47e568a9370a 100644
--- a/Documentation/cpusets.txt
+++ b/Documentation/cpusets.txt
@@ -635,14 +635,16 @@ prior 'mems' setting, will not be moved.
 
 There is an exception to the above.  If hotplug functionality is used
 to remove all the CPUs that are currently assigned to a cpuset,
-then the kernel will automatically update the cpus_allowed of all
-tasks attached to CPUs in that cpuset to allow all CPUs.  When memory
-hotplug functionality for removing Memory Nodes is available, a
-similar exception is expected to apply there as well.  In general,
-the kernel prefers to violate cpuset placement, over starving a task
-that has had all its allowed CPUs or Memory Nodes taken offline.  User
-code should reconfigure cpusets to only refer to online CPUs and Memory
-Nodes when using hotplug to add or remove such resources.
+then all the tasks in that cpuset will be moved to the nearest ancestor
+with non-empty cpus.  But the moving of some (or all) tasks might fail if
+cpuset is bound with another cgroup subsystem which has some restrictions
+on task attaching.  In this failing case, those tasks will stay
+in the original cpuset, and the kernel will automatically update
+their cpus_allowed to allow all online CPUs.  When memory hotplug
+functionality for removing Memory Nodes is available, a similar exception
+is expected to apply there as well.  In general, the kernel prefers to
+violate cpuset placement, over starving a task that has had all
+its allowed CPUs or Memory Nodes taken offline.
 
 There is a second exception to the above.  GFP_ATOMIC requests are
 kernel internal allocations that must be satisfied, immediately.
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index eb1a47b97427..83c88cae1eda 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -322,3 +322,11 @@ Why:  Accounting can now be enabled/disabled without kernel recompilation.
       controlled by a kernel/module/sysfs/sysctl parameter.
 Who:  Krzysztof Piotr Oledzki <ole@ans.pl>
 
+---------------------------
+
+What: ide-scsi (BLK_DEV_IDESCSI)
+When: 2.6.29
+Why:  The 2.6 kernel supports direct writing to ide CD drives, which
+      eliminates the need for ide-scsi. The new method is more
+      efficient in every way.
+Who:  FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 394eb2cc1c39..f566ad9bcb7b 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -2413,6 +2413,8 @@ The following 4 memory types are supported:
   - (bit 1) anonymous shared memory
   - (bit 2) file-backed private memory
   - (bit 3) file-backed shared memory
+  - (bit 4) ELF header pages in file-backed private memory areas (it is
+            effective only if the bit 2 is cleared)
 
   Note that MMIO pages such as frame buffer are never dumped and vDSO pages
   are always dumped regardless of the bitmask status.
diff --git a/Documentation/hwmon/adt7473 b/Documentation/hwmon/adt7473
index 2126de34c711..1cbf671822e2 100644
--- a/Documentation/hwmon/adt7473
+++ b/Documentation/hwmon/adt7473
@@ -14,14 +14,14 @@ Description
 
 This driver implements support for the Analog Devices ADT7473 chip family.
 
-The LM85 uses the 2-wire interface compatible with the SMBUS 2.0
+The ADT7473 uses the 2-wire interface compatible with the SMBUS 2.0
 specification. Using an analog to digital converter it measures three (3)
-temperatures and two (2) voltages. It has three (3) 16-bit counters for
+temperatures and two (2) voltages. It has four (4) 16-bit counters for
 measuring fan speed. There are three (3) PWM outputs that can be used
 to control fan speed.
 
 A sophisticated control system for the PWM outputs is designed into the
-LM85 that allows fan speed to be adjusted automatically based on any of the
+ADT7473 that allows fan speed to be adjusted automatically based on any of the
 three temperature sensors. Each PWM output is individually adjustable and
 programmable. Once configured, the ADT7473 will adjust the PWM outputs in
 response to the measured temperatures without further host intervention.
@@ -46,14 +46,6 @@ from the raw value to get the temperature value.
 The Analog Devices datasheet is very detailed and describes a procedure for
 determining an optimal configuration for the automatic PWM control.
 
-Hardware Configurations
------------------------
-
-The ADT7473 chips have an optional SMBALERT output that can be used to
-signal the chipset in case a limit is exceeded or the temperature sensors
-fail. Individual sensor interrupts can be masked so they won't trigger
-SMBALERT. The SMBALERT output if configured replaces the PWM2 function.
-
 Configuration Notes
 -------------------
 
@@ -61,8 +53,8 @@ Besides standard interfaces driver adds the following:
 
 * PWM Control
 
-* pwm#_auto_point1_pwm and pwm#_auto_point1_temp and
-* pwm#_auto_point2_pwm and pwm#_auto_point2_temp -
+* pwm#_auto_point1_pwm and temp#_auto_point1_temp and
+* pwm#_auto_point2_pwm and temp#_auto_point2_temp -
 
 point1: Set the pwm speed at a lower temperature bound.
 point2: Set the pwm speed at a higher temperature bound.
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 2d845730d4e0..6dbfd5efd991 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -329,6 +329,10 @@ power[1-*]_average		Average power use
                                 Unit: microWatt
                                 RO
 
+power[1-*]_average_interval     Power use averaging interval
+                                Unit: milliseconds
+                                RW
+
 power[1-*]_average_highest      Historical average maximum power use
                                 Unit: microWatt
                                 RO
@@ -354,6 +358,14 @@ power[1-*]_reset_history	Reset input_highest, input_lowest,
                                 WO
 
 **********
+* Energy *
+**********
+
+energy[1-*]_input               Cumulative energy use
+                                Unit: microJoule
+                                RO
+
+**********
 * Alarms *
 **********
 
diff --git a/Documentation/ioctl/cdrom.txt b/Documentation/ioctl/cdrom.txt
index 62d4af44ec4a..59df81c8da2b 100644
--- a/Documentation/ioctl/cdrom.txt
+++ b/Documentation/ioctl/cdrom.txt
@@ -271,14 +271,14 @@ CDROMCLOSETRAY			pendant of CDROMEJECT
 
         usage:
 
-          ioctl(fd, CDROMEJECT, 0);
+          ioctl(fd, CDROMCLOSETRAY, 0);
 
         inputs:         none
 
         outputs:        none
 
         error returns:
-          ENOSYS        cd drive not capable of ejecting
+          ENOSYS        cd drive not capable of closing the tray
           EBUSY         other processes are accessing drive, or door is locked
 
         notes:
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 276a7e637822..e1ff0d920a5c 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -351,9 +351,10 @@ kernel.  This value defaults to SHMMAX.
 
 softlockup_thresh:
 
-This value can be used to lower the softlockup tolerance
-threshold. The default threshold is 10s.  If a cpu is locked up
-for 10s, the kernel complains.  Valid values are 1-60s.
+This value can be used to lower the softlockup tolerance threshold.  The
+default threshold is 60 seconds.  If a cpu is locked up for 60 seconds,
+the kernel complains.  Valid values are 1-60 seconds.  Setting this
+tunable to zero will disable the softlockup detection altogether.
 
 ==============================================================
 
diff --git a/Documentation/usb/anchors.txt b/Documentation/usb/anchors.txt
index 7304bcf5a306..5e6b64c20d25 100644
--- a/Documentation/usb/anchors.txt
+++ b/Documentation/usb/anchors.txt
@@ -42,9 +42,21 @@ This function kills all URBs associated with an anchor. The URBs
 are called in the reverse temporal order they were submitted.
 This way no data can be reordered.
 
+usb_unlink_anchored_urbs()
+--------------------------
+
+This function unlinks all URBs associated with an anchor. The URBs
+are processed in the reverse temporal order they were submitted.
+This is similar to usb_kill_anchored_urbs(), but it will not sleep.
+Therefore no guarantee is made that the URBs have been unlinked when
+the call returns. They may be unlinked later but will be unlinked in
+finite time.
+
 usb_wait_anchor_empty_timeout()
 -------------------------------
 
 This function waits for all URBs associated with an anchor to finish
 or a timeout, whichever comes first. Its return value will tell you
 whether the timeout was reached.
+
+
diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx
index 89c7f32abf9f..53449cb99b17 100644
--- a/Documentation/video4linux/CARDLIST.em28xx
+++ b/Documentation/video4linux/CARDLIST.em28xx
@@ -46,7 +46,7 @@
  45 -> Pinnacle PCTV DVB-T                      (em2870)
  46 -> Compro, VideoMate U3                     (em2870)        [185b:2870]
  47 -> KWorld DVB-T 305U                        (em2880)        [eb1a:e305]
- 48 -> KWorld DVB-T 310U                        (em2880)
+ 48 -> KWorld DVB-T 310U                        (em2880)        [eb1a:e310]
  49 -> MSI DigiVox A/D                          (em2880)        [eb1a:e310]
  50 -> MSI DigiVox A/D II                       (em2880)        [eb1a:e320]
  51 -> Terratec Hybrid XS Secam                 (em2880)        [0ccd:004c]
diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt
index 0f03900c48fb..9a3e4d797fa8 100644
--- a/Documentation/video4linux/gspca.txt
+++ b/Documentation/video4linux/gspca.txt
@@ -190,6 +190,7 @@ pac7311		093a:260f	SnakeCam
 pac7311         093a:2621       PAC731x
 pac7311         093a:2624       PAC7302
 pac7311         093a:2626       Labtec 2200
+pac7311         093a:262a       Webcam 300k
 zc3xx           0ac8:0302       Z-star Vimicro zc0302
 vc032x          0ac8:0321       Vimicro generic vc0321
 vc032x          0ac8:0323       Vimicro Vc0323