---

yaml
---
r: 130871
b: refs/heads/master
c: f9e6934
h: refs/heads/master
i:
  130869: 3e1877a
  130867: 7aca76c
  130863: b654a2a
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0d7a063fa7b918d2a61cdd63232286d4131774de
+refs/heads/master: f9e6934502e46c363100245f137ddf0f4b1cb574

trunk/Documentation/Changes

@@ -33,12 +33,10 @@ o  Gnu make               3.79.1                  # make --version
 o  binutils               2.12                    # ld -v
 o  util-linux             2.10o                   # fdformat --version
 o  module-init-tools      0.9.10                  # depmod -V
-o  e2fsprogs              1.41.4                  # e2fsck -V
+o  e2fsprogs              1.29                    # tune2fs
 o  jfsutils               1.1.3                   # fsck.jfs -V
 o  reiserfsprogs          3.6.3                   # reiserfsck -V 2>&1|grep reiserfsprogs
 o  xfsprogs               2.6.0                   # xfs_db -V
-o  squashfs-tools         4.0                     # mksquashfs -version
-o  btrfs-progs            0.18                    # btrfsck
 o  pcmciautils            004                     # pccardctl -V
 o  quota-tools            3.09                    # quota -V
 o  PPP                    2.4.0                   # pppd --version

trunk/Documentation/CodingStyle

@@ -483,25 +483,17 @@ values.  To do the latter, you can stick the following in your .emacs file:
     (* (max steps 1)
        c-basic-offset)))
 
-(add-hook 'c-mode-common-hook
-          (lambda ()
-            ;; Add kernel style
-            (c-add-style
-             "linux-tabs-only"
-             '("linux" (c-offsets-alist
-                        (arglist-cont-nonempty
-                         c-lineup-gcc-asm-reg
-                         c-lineup-arglist-tabs-only))))))
-
 (add-hook 'c-mode-hook
           (lambda ()
             (let ((filename (buffer-file-name)))
               ;; Enable kernel mode for the appropriate files
               (when (and filename
-                         (string-match (expand-file-name "~/src/linux-trees")
-                                       filename))
+                         (string-match "~/src/linux-trees" filename))
                 (setq indent-tabs-mode t)
-                (c-set-style "linux-tabs-only")))))
+                (c-set-style "linux")
+                (c-set-offset 'arglist-cont-nonempty
+                              '(c-lineup-gcc-asm-reg
+                                c-lineup-arglist-tabs-only))))))
 
 This will make emacs go better with the kernel coding style for C
 files below ~/src/linux-trees.

trunk/Documentation/DMA-API.txt

@@ -5,7 +5,7 @@
 
 This document describes the DMA API.  For a more gentle introduction
 phrased in terms of the pci_ equivalents (and actual examples) see
-Documentation/PCI/PCI-DMA-mapping.txt.
+DMA-mapping.txt
 
 This API is split into two pieces.  Part I describes the API and the
 corresponding pci_ API.  Part II describes the extensions to the API

trunk/Documentation/DocBook/uio-howto.tmpl

@@ -41,12 +41,6 @@ GPL version 2.
 </abstract>
 
 <revhistory>
-	<revision>
-	<revnumber>0.7</revnumber>
-	<date>2008-12-23</date>
-	<authorinitials>hjk</authorinitials>
-	<revremark>Added generic platform drivers and offset attribute.</revremark>
-	</revision>
 	<revision>
 	<revnumber>0.6</revnumber>
 	<date>2008-12-05</date>
@@ -318,16 +312,6 @@ interested in translating it, please email me
 	pointed to by addr.
 	</para>
 </listitem>
-<listitem>
-	<para>
-	<filename>offset</filename>: The offset, in bytes, that has to be
-	added to the pointer returned by <function>mmap()</function> to get
-	to the actual device memory. This is important if the device's memory
-	is not page aligned. Remember that pointers returned by
-	<function>mmap()</function> are always page aligned, so it is good
-	style to always add this offset.
-	</para>
-</listitem>
 </itemizedlist>
 
 <para>
@@ -610,78 +594,6 @@ framework to set up sysfs files for this region. Simply leave it alone.
 	</para>
 </sect1>
 
-<sect1 id="using_uio_pdrv">
-<title>Using uio_pdrv for platform devices</title>
-	<para>
-	In many cases, UIO drivers for platform devices can be handled in a
-	generic way. In the same place where you define your
-	<varname>struct platform_device</varname>, you simply also implement
-	your interrupt handler and fill your
-	<varname>struct uio_info</varname>. A pointer to this
-	<varname>struct uio_info</varname> is then used as
-	<varname>platform_data</varname> for your platform device.
-	</para>
-	<para>
-	You also need to set up an array of <varname>struct resource</varname>
-	containing addresses and sizes of your memory mappings. This
-	information is passed to the driver using the
-	<varname>.resource</varname> and <varname>.num_resources</varname>
-	elements of <varname>struct platform_device</varname>.
-	</para>
-	<para>
-	You now have to set the <varname>.name</varname> element of
-	<varname>struct platform_device</varname> to
-	<varname>"uio_pdrv"</varname> to use the generic UIO platform device
-	driver. This driver will fill the <varname>mem[]</varname> array
-	according to the resources given, and register the device.
-	</para>
-	<para>
-	The advantage of this approach is that you only have to edit a file
-	you need to edit anyway. You do not have to create an extra driver.
-	</para>
-</sect1>
-
-<sect1 id="using_uio_pdrv_genirq">
-<title>Using uio_pdrv_genirq for platform devices</title>
-	<para>
-	Especially in embedded devices, you frequently find chips where the
-	irq pin is tied to its own dedicated interrupt line. In such cases,
-	where you can be really sure the interrupt is not shared, we can take
-	the concept of <varname>uio_pdrv</varname> one step further and use a
-	generic interrupt handler. That's what
-	<varname>uio_pdrv_genirq</varname> does.
-	</para>
-	<para>
-	The setup for this driver is the same as described above for
-	<varname>uio_pdrv</varname>, except that you do not implement an
-	interrupt handler. The <varname>.handler</varname> element of
-	<varname>struct uio_info</varname> must remain
-	<varname>NULL</varname>. The  <varname>.irq_flags</varname> element
-	must not contain <varname>IRQF_SHARED</varname>.
-	</para>
-	<para>
-	You will set the <varname>.name</varname> element of
-	<varname>struct platform_device</varname> to
-	<varname>"uio_pdrv_genirq"</varname> to use this driver.
-	</para>
-	<para>
-	The generic interrupt handler of <varname>uio_pdrv_genirq</varname>
-	will simply disable the interrupt line using
-	<function>disable_irq_nosync()</function>. After doing its work,
-	userspace can reenable the interrupt by writing 0x00000001 to the UIO
-	device file. The driver already implements an
-	<function>irq_control()</function> to make this possible, you must not
-	implement your own.
-	</para>
-	<para>
-	Using <varname>uio_pdrv_genirq</varname> not only saves a few lines of
-	interrupt handler code. You also do not need to know anything about
-	the chip's internal registers to create the kernel part of the driver.
-	All you need to know is the irq number of the pin the chip is
-	connected to.
-	</para>
-</sect1>
-
 </chapter>
 
 <chapter id="userspace_driver" xreflabel="Writing a driver in user space">

trunk/Documentation/IO-mapping.txt

@@ -1,6 +1,6 @@
 [ NOTE: The virt_to_bus() and bus_to_virt() functions have been
-	superseded by the functionality provided by the PCI DMA interface
-	(see Documentation/PCI/PCI-DMA-mapping.txt).  They continue
+	superseded by the functionality provided by the PCI DMA
+	interface (see Documentation/DMA-mapping.txt).  They continue
 	to be documented below for historical purposes, but new code
 	must not use them. --davidm 00/12/12 ]
 

trunk/Documentation/block/biodoc.txt

@@ -186,9 +186,8 @@ a virtual address mapping (unlike the earlier scheme of virtual address
 do not have a corresponding kernel virtual address space mapping) and
 low-memory pages.
 
-Note: Please refer to Documentation/PCI/PCI-DMA-mapping.txt for a discussion
-on PCI high mem DMA aspects and mapping of scatter gather lists, and support
-for 64 bit PCI.
+Note: Please refer to DMA-mapping.txt for a discussion on PCI high mem DMA
+aspects and mapping of scatter gather lists, and support for 64 bit PCI.
 
 Special handling is required only for cases where i/o needs to happen on
 pages at physical memory addresses beyond what the device can support. In these
@@ -954,14 +953,14 @@ elevator_allow_merge_fn		called whenever the block layer determines
 				results in some sort of conflict internally,
 				this hook allows it to do that.
 
-elevator_dispatch_fn*		fills the dispatch queue with ready requests.
+elevator_dispatch_fn		fills the dispatch queue with ready requests.
 				I/O schedulers are free to postpone requests by
 				not filling the dispatch queue unless @force
 				is non-zero.  Once dispatched, I/O schedulers
 				are not allowed to manipulate the requests -
 				they belong to generic dispatch queue.
 
-elevator_add_req_fn*		called to add a new request into the scheduler
+elevator_add_req_fn		called to add a new request into the scheduler
 
 elevator_queue_empty_fn		returns true if the merge queue is empty.
 				Drivers shouldn't use this, but rather check
@@ -991,7 +990,7 @@ elevator_activate_req_fn	Called when device driver first sees a request.
 elevator_deactivate_req_fn	Called when device driver decides to delay
 				a request by requeueing it.
 
-elevator_init_fn*
+elevator_init_fn
 elevator_exit_fn		Allocate and free any elevator specific storage
 				for a queue.
 

trunk/Documentation/cgroups/memcg_test.txt

@@ -1,6 +1,6 @@
 Memory Resource Controller(Memcg)  Implementation Memo.
-Last Updated: 2009/1/19
-Base Kernel Version: based on 2.6.29-rc2.
+Last Updated: 2008/12/15
+Base Kernel Version: based on 2.6.28-rc8-mm.
 
 Because VM is getting complex (one of reasons is memcg...), memcg's behavior
 is complex. This is a document for memcg's internal behavior.
@@ -340,23 +340,3 @@ Under below explanation, we assume CONFIG_MEM_RES_CTRL_SWAP=y.
 	# mount -t cgroup none /cgroup -t cpuset,memory,cpu,devices
 
 	and do task move, mkdir, rmdir etc...under this.
-
- 9.7 swapoff.
-	Besides management of swap is one of complicated parts of memcg,
-	call path of swap-in at swapoff is not same as usual swap-in path..
-	It's worth to be tested explicitly.
-
-	For example, test like following is good.
-	(Shell-A)
-	# mount -t cgroup none /cgroup -t memory
-	# mkdir /cgroup/test
-	# echo 40M > /cgroup/test/memory.limit_in_bytes
-	# echo 0 > /cgroup/test/tasks
-	Run malloc(100M) program under this. You'll see 60M of swaps.
-	(Shell-B)
-	# move all tasks in /cgroup/test to /cgroup
-	# /sbin/swapoff -a
-	# rmdir /test/cgroup
-	# kill malloc task.
-
-	Of course, tmpfs v.s. swapoff test should be tested, too.

trunk/Documentation/filesystems/nfs-rdma.txt

@@ -251,7 +251,7 @@ NFS/RDMA Setup
 
     Instruct the server to listen on the RDMA transport:
 
-    $ echo rdma 20049 > /proc/fs/nfsd/portlist
+    $ echo rdma 2050 > /proc/fs/nfsd/portlist
 
   - On the client system
 
@@ -263,7 +263,7 @@ NFS/RDMA Setup
     Regardless of how the client was built (module or built-in), use this
     command to mount the NFS/RDMA server:
 
-    $ mount -o rdma,port=20049 <IPoIB-server-name-or-address>:/<export> /mnt
+    $ mount -o rdma,port=2050 <IPoIB-server-name-or-address>:/<export> /mnt
 
     To verify that the mount is using RDMA, run "cat /proc/mounts" and check
     the "proto" field for the given mount.

trunk/Documentation/filesystems/proc.txt

@@ -2027,34 +2027,6 @@ increase the likelihood of this process being killed by the oom-killer.  Valid
 values are in the range -16 to +15, plus the special value -17, which disables
 oom-killing altogether for this process.
 
-The process to be killed in an out-of-memory situation is selected among all others
-based on its badness score. This value equals the original memory size of the process
-and is then updated according to its CPU time (utime + stime) and the
-run time (uptime - start time). The longer it runs the smaller is the score.
-Badness score is divided by the square root of the CPU time and then by
-the double square root of the run time.
-
-Swapped out tasks are killed first. Half of each child's memory size is added to
-the parent's score if they do not share the same memory. Thus forking servers
-are the prime candidates to be killed. Having only one 'hungry' child will make
-parent less preferable than the child.
-
-/proc/<pid>/oom_score shows process' current badness score.
-
-The following heuristics are then applied:
- * if the task was reniced, its score doubles
- * superuser or direct hardware access tasks (CAP_SYS_ADMIN, CAP_SYS_RESOURCE
- 	or CAP_SYS_RAWIO) have their score divided by 4
- * if oom condition happened in one cpuset and checked task does not belong
- 	to it, its score is divided by 8
- * the resulting score is multiplied by two to the power of oom_adj, i.e.
-	points <<= oom_adj when it is positive and
-	points >>= -(oom_adj) otherwise
-
-The task with the highest badness score is then selected and its children
-are killed, process itself will be killed in an OOM situation when it does
-not have children or some of them disabled oom like described above.
-
 2.13 /proc/<pid>/oom_score - Display current oom-killer score
 -------------------------------------------------------------
 

trunk/Documentation/filesystems/ubifs.txt

@@ -79,6 +79,13 @@ Mount options
 
 (*) == default.
 
+norm_unmount (*)	commit on unmount; the journal is committed
+			when the file-system is unmounted so that the
+			next mount does not have to replay the journal
+			and it becomes very fast;
+fast_unmount		do not commit on unmount; this option makes
+			unmount faster, but the next mount slower
+			because of the need to replay the journal.
 bulk_read		read more in one go to take advantage of flash
 			media that read faster sequentially
 no_bulk_read (*)	do not bulk-read