---

yaml
---
r: 327050
b: refs/heads/master
c: 853b1eb
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0e7d35c1fb708355ccef7cc4243509a3156c839b
+refs/heads/master: 853b1eb8303753be72052140023528854cba29dd

trunk/Documentation/ABI/testing/sysfs-platform-ideapad-laptop

@@ -5,15 +5,4 @@ Contact:	"Ike Panhc <ike.pan@canonical.com>"
 Description:
 		Control the power of camera module. 1 means on, 0 means off.
 
-What:		/sys/devices/platform/ideapad/fan_mode
-Date:		June 2012
-KernelVersion:	3.6
-Contact:	"Maxim Mikityanskiy <maxtram95@gmail.com>"
-Description:
-		Change fan mode
-		There are four available modes:
-			* 0 -> Super Silent Mode
-			* 1 -> Standard Mode
-			* 2 -> Dust Cleaning
-			* 4 -> Efficient Thermal Dissipation Mode
 

trunk/Documentation/DocBook/filesystems.tmpl

@@ -224,8 +224,8 @@ all your transactions.
 </para>
 
 <para>
-Then at umount time , in your put_super() you can then call journal_destroy()
-to clean up your in-core journal object.
+Then at umount time , in your put_super() (2.4) or write_super() (2.5)
+you can then call journal_destroy() to clean up your in-core journal object.
 </para>
 
 <para>

trunk/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml

@@ -125,7 +125,7 @@ the structure refers to a radio tuner the
 <constant>V4L2_TUNER_CAP_NORM</constant> flags can't be used.</para>
 <para>If multiple frequency bands are supported, then
 <structfield>capability</structfield> is the union of all
-<structfield>capability</structfield> fields of each &v4l2-frequency-band;.
+<structfield>capability></structfield> fields of each &v4l2-frequency-band;.
 </para></entry>
 	  </row>
 	  <row>

trunk/Documentation/block/00-INDEX

@@ -3,21 +3,15 @@
 biodoc.txt
 	- Notes on the Generic Block Layer Rewrite in Linux 2.5
 capability.txt
-	- Generic Block Device Capability (/sys/block/<device>/capability)
-cfq-iosched.txt
-	- CFQ IO scheduler tunables
-data-integrity.txt
-	- Block data integrity
+	- Generic Block Device Capability (/sys/block/<disk>/capability)
 deadline-iosched.txt
 	- Deadline IO scheduler tunables
 ioprio.txt
 	- Block io priorities (in CFQ scheduler)
-queue-sysfs.txt
-	- Queue's sysfs entries
 request.txt
 	- The members of struct request (in include/linux/blkdev.h)
 stat.txt
-	- Block layer statistics in /sys/block/<device>/stat
+	- Block layer statistics in /sys/block/<dev>/stat
 switching-sched.txt
 	- Switching I/O schedulers at runtime
 writeback_cache_control.txt

trunk/Documentation/block/cfq-iosched.txt

@@ -1,14 +1,3 @@
-CFQ (Complete Fairness Queueing)
-===============================
-
-The main aim of CFQ scheduler is to provide a fair allocation of the disk
-I/O bandwidth for all the processes which requests an I/O operation.
-
-CFQ maintains the per process queue for the processes which request I/O
-operation(syncronous requests). In case of asynchronous requests, all the
-requests from all the processes are batched together according to their
-process's I/O priority.
-
 CFQ ioscheduler tunables
 ========================
 
@@ -36,72 +25,6 @@ there are multiple spindles behind single LUN (Host based hardware RAID
 controller or for storage arrays), setting slice_idle=0 might end up in better
 throughput and acceptable latencies.
 
-back_seek_max
--------------
-This specifies, given in Kbytes, the maximum "distance" for backward seeking.
-The distance is the amount of space from the current head location to the
-sectors that are backward in terms of distance.
-
-This parameter allows the scheduler to anticipate requests in the "backward"
-direction and consider them as being the "next" if they are within this
-distance from the current head location.
-
-back_seek_penalty
------------------
-This parameter is used to compute the cost of backward seeking. If the
-backward distance of request is just 1/back_seek_penalty from a "front"
-request, then the seeking cost of two requests is considered equivalent.
-
-So scheduler will not bias toward one or the other request (otherwise scheduler
-will bias toward front request). Default value of back_seek_penalty is 2.
-
-fifo_expire_async
------------------
-This parameter is used to set the timeout of asynchronous requests. Default
-value of this is 248ms.
-
-fifo_expire_sync
-----------------
-This parameter is used to set the timeout of synchronous requests. Default
-value of this is 124ms. In case to favor synchronous requests over asynchronous
-one, this value should be decreased relative to fifo_expire_async.
-
-slice_async
------------
-This parameter is same as of slice_sync but for asynchronous queue. The
-default value is 40ms.
-
-slice_async_rq
---------------
-This parameter is used to limit the dispatching of asynchronous request to
-device request queue in queue's slice time. The maximum number of request that
-are allowed to be dispatched also depends upon the io priority. Default value
-for this is 2.
-
-slice_sync
-----------
-When a queue is selected for execution, the queues IO requests are only
-executed for a certain amount of time(time_slice) before switching to another
-queue. This parameter is used to calculate the time slice of synchronous
-queue.
-
-time_slice is computed using the below equation:-
-time_slice = slice_sync + (slice_sync/5 * (4 - prio)). To increase the
-time_slice of synchronous queue, increase the value of slice_sync. Default
-value is 100ms.
-
-quantum
--------
-This specifies the number of request dispatched to the device queue. In a
-queue's time slice, a request will not be dispatched if the number of request
-in the device exceeds this parameter. This parameter is used for synchronous
-request.
-
-In case of storage with several disk, this setting can limit the parallel
-processing of request. Therefore, increasing the value can imporve the
-performace although this can cause the latency of some I/O to increase due
-to more number of requests.
-
 CFQ IOPS Mode for group scheduling
 ===================================
 Basic CFQ design is to provide priority based time slices. Higher priority

trunk/Documentation/block/queue-sysfs.txt

@@ -9,71 +9,20 @@ These files are the ones found in the /sys/block/xxx/queue/ directory.
 Files denoted with a RO postfix are readonly and the RW postfix means
 read-write.
 
-add_random (RW)
-----------------
-This file allows to trun off the disk entropy contribution. Default
-value of this file is '1'(on).
-
-discard_granularity (RO)
------------------------
-This shows the size of internal allocation of the device in bytes, if
-reported by the device. A value of '0' means device does not support
-the discard functionality.
-
-discard_max_bytes (RO)
-----------------------
-Devices that support discard functionality may have internal limits on
-the number of bytes that can be trimmed or unmapped in a single operation.
-The discard_max_bytes parameter is set by the device driver to the maximum
-number of bytes that can be discarded in a single operation. Discard
-requests issued to the device must not exceed this limit. A discard_max_bytes
-value of 0 means that the device does not support discard functionality.
-
-discard_zeroes_data (RO)
-------------------------
-When read, this file will show if the discarded block are zeroed by the
-device or not. If its value is '1' the blocks are zeroed otherwise not.
-
 hw_sector_size (RO)
 -------------------
 This is the hardware sector size of the device, in bytes.
 
-iostats (RW)
--------------
-This file is used to control (on/off) the iostats accounting of the
-disk.
-
-logical_block_size (RO)
------------------------
-This is the logcal block size of the device, in bytes.
-
 max_hw_sectors_kb (RO)
 ----------------------
 This is the maximum number of kilobytes supported in a single data transfer.
 
-max_integrity_segments (RO)
----------------------------
-When read, this file shows the max limit of integrity segments as
-set by block layer which a hardware controller can handle.
-
 max_sectors_kb (RW)
 -------------------
 This is the maximum number of kilobytes that the block layer will allow
 for a filesystem request. Must be smaller than or equal to the maximum
 size allowed by the hardware.
 
-max_segments (RO)
------------------
-Maximum number of segments of the device.
-
-max_segment_size (RO)
----------------------
-Maximum segment size of the device.
-
-minimum_io_size (RO)
---------------------
-This is the smallest preferred io size reported by the device.
-
 nomerges (RW)
 -------------
 This enables the user to disable the lookup logic involved with IO
@@ -96,24 +45,11 @@ per-block-cgroup request pool.  IOW, if there are N block cgroups,
 each request queue may have upto N request pools, each independently
 regulated by nr_requests.
 
-optimal_io_size (RO)
---------------------
-This is the optimal io size reported by the device.
-
-physical_block_size (RO)
-------------------------
-This is the physical block size of device, in bytes.
-
 read_ahead_kb (RW)
 ------------------
 Maximum number of kilobytes to read-ahead for filesystems on this block
 device.
 
-rotational (RW)
----------------
-This file is used to stat if the device is of rotational type or
-non-rotational type.
-
 rq_affinity (RW)
 ----------------
 If this option is '1', the block layer will migrate request completions to the

trunk/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt

@@ -10,17 +10,17 @@ Required properties:
 - compatible : Should be "fsl,<chip>-esdhc"
 
 Optional properties:
-- fsl,cd-controller : Indicate to use controller internal card detection
-- fsl,wp-controller : Indicate to use controller internal write protection
+- fsl,cd-internal : Indicate to use controller internal card detection
+- fsl,wp-internal : Indicate to use controller internal write protection
 
 Examples:
 
 esdhc@70004000 {
 	compatible = "fsl,imx51-esdhc";
 	reg = <0x70004000 0x4000>;
 	interrupts = <1>;
-	fsl,cd-controller;
-	fsl,wp-controller;
+	fsl,cd-internal;
+	fsl,wp-internal;
 };
 
 esdhc@70008000 {

trunk/Documentation/devicetree/bindings/regulator/tps6586x.txt

@@ -9,9 +9,9 @@ Required properties:
 - regulators: list of regulators provided by this controller, must have
   property "regulator-compatible" to match their hardware counterparts:
   sm[0-2], ldo[0-9] and ldo_rtc
-- vin-sm0-supply: The input supply for the SM0.
-- vin-sm1-supply: The input supply for the SM1.
-- vin-sm2-supply: The input supply for the SM2.
+- sm0-supply: The input supply for the SM0.
+- sm1-supply: The input supply for the SM1.
+- sm2-supply: The input supply for the SM2.
 - vinldo01-supply: The input supply for the LDO1 and LDO2
 - vinldo23-supply: The input supply for the LDO2 and LDO3
 - vinldo4-supply: The input supply for the LDO4
@@ -30,9 +30,9 @@ Example:
 		#gpio-cells = <2>;
 		gpio-controller;
 
-		vin-sm0-supply = <&some_reg>;
-		vin-sm1-supply = <&some_reg>;
-		vin-sm2-supply = <&some_reg>;
+		sm0-supply = <&some_reg>;
+		sm1-supply = <&some_reg>;
+		sm2-supply = <&some_reg>;
 		vinldo01-supply = <...>;
 		vinldo23-supply = <...>;
 		vinldo4-supply = <...>;

trunk/Documentation/filesystems/Locking

@@ -114,6 +114,7 @@ prototypes:
 	int (*drop_inode) (struct inode *);
 	void (*evict_inode) (struct inode *);
 	void (*put_super) (struct super_block *);
+	void (*write_super) (struct super_block *);
 	int (*sync_fs)(struct super_block *sb, int wait);
 	int (*freeze_fs) (struct super_block *);
 	int (*unfreeze_fs) (struct super_block *);
@@ -135,6 +136,7 @@ write_inode:
 drop_inode:				!!!inode->i_lock!!!
 evict_inode:
 put_super:		write
+write_super:		read
 sync_fs:		read
 freeze_fs:		write
 unfreeze_fs:		write

trunk/Documentation/filesystems/porting

@@ -94,8 +94,9 @@ protected.
 ---
 [mandatory]
 
-BKL is also moved from around sb operations. BKL should have been shifted into
-individual fs sb_op functions.  If you don't need it, remove it.
+BKL is also moved from around sb operations.  ->write_super() Is now called 
+without BKL held.  BKL should have been shifted into individual fs sb_op
+functions.  If you don't need it, remove it.  
 
 ---
 [informational]

trunk/Documentation/filesystems/vfat.txt

@@ -137,17 +137,6 @@ errors=panic|continue|remount-ro
 		 without doing anything or remount the partition in
 		 read-only mode (default behavior).
 
-discard       -- If set, issues discard/TRIM commands to the block
-		 device when blocks are freed. This is useful for SSD devices
-		 and sparse/thinly-provisoned LUNs.
-
-nfs           -- This option maintains an index (cache) of directory
-		 inodes by i_logstart which is used by the nfs-related code to
-		 improve look-ups.
-
-		 Enable this only if you want to export the FAT filesystem
-		 over NFS
-
 <bool>: 0,1,yes,no,true,false
 
 TODO

trunk/Documentation/filesystems/vfs.txt

@@ -216,6 +216,7 @@ struct super_operations {
         void (*drop_inode) (struct inode *);
         void (*delete_inode) (struct inode *);
         void (*put_super) (struct super_block *);
+        void (*write_super) (struct super_block *);
         int (*sync_fs)(struct super_block *sb, int wait);
         int (*freeze_fs) (struct super_block *);
         int (*unfreeze_fs) (struct super_block *);
@@ -272,6 +273,9 @@ or bottom half).
   put_super: called when the VFS wishes to free the superblock
 	(i.e. unmount). This is called with the superblock lock held
 
+  write_super: called when the VFS superblock needs to be written to
+	disc. This method is optional
+
   sync_fs: called when VFS is writing out all dirty data associated with
   	a superblock. The second parameter indicates whether the method
 	should wait until the write out has been completed. Optional.

trunk/Documentation/laptops/laptop-mode.txt

@@ -262,9 +262,9 @@ MINIMUM_BATTERY_MINUTES=10
 
 #
 # Allowed dirty background ratio, in percent.  Once DIRTY_RATIO has been
-# exceeded, the kernel will wake flusher threads which will then reduce the
-# amount of dirty memory to dirty_background_ratio.  Set this nice and low,
-# so once some writeout has commenced, we do a lot of it.
+# exceeded, the kernel will wake pdflush which will then reduce the amount
+# of dirty memory to dirty_background_ratio.  Set this nice and low, so once
+# some writeout has commenced, we do a lot of it.
 #
 #DIRTY_BACKGROUND_RATIO=5
 
@@ -384,9 +384,9 @@ CPU_MAXFREQ=${CPU_MAXFREQ:-'slowest'}
 
 #
 # Allowed dirty background ratio, in percent.  Once DIRTY_RATIO has been
-# exceeded, the kernel will wake flusher threads which will then reduce the
-# amount of dirty memory to dirty_background_ratio.  Set this nice and low,
-# so once some writeout has commenced, we do a lot of it.
+# exceeded, the kernel will wake pdflush which will then reduce the amount
+# of dirty memory to dirty_background_ratio.  Set this nice and low, so once
+# some writeout has commenced, we do a lot of it.
 #
 DIRTY_BACKGROUND_RATIO=${DIRTY_BACKGROUND_RATIO:-'5'}