aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-02 19:07:27 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-02 19:07:27 -0400
commit092f4c56c1927e4b61a41ee8055005f1cb437009 (patch)
tree616ceb54b7671ccc13922ae9e002b8b972f6e09e /Documentation
parent80c2861672bbf000f6af838656959ee937e4ee4d (diff)
parentc1e2ee2dc436574880758b3836fc96935b774c32 (diff)
Merge branch 'akpm' (Andrew's incoming - part two)
Says Andrew: "60 patches. That's good enough for -rc1 I guess. I have quite a lot of detritus to be rechecked, work through maintainers, etc. - most of the remains of MM - rtc - various misc - cgroups - memcg - cpusets - procfs - ipc - rapidio - sysctl - pps - w1 - drivers/misc - aio" * akpm: (60 commits) memcg: replace ss->id_lock with a rwlock aio: allocate kiocbs in batches drivers/misc/vmw_balloon.c: fix typo in code comment drivers/misc/vmw_balloon.c: determine page allocation flag can_sleep outside loop w1: disable irqs in critical section drivers/w1/w1_int.c: multiple masters used same init_name drivers/power/ds2780_battery.c: fix deadlock upon insertion and removal drivers/power/ds2780_battery.c: add a nolock function to w1 interface drivers/power/ds2780_battery.c: create central point for calling w1 interface w1: ds2760 and ds2780, use ida for id and ida_simple_get() to get it pps gpio client: add missing dependency pps: new client driver using GPIO pps: default echo function include/linux/dma-mapping.h: add dma_zalloc_coherent() sysctl: make CONFIG_SYSCTL_SYSCALL default to n sysctl: add support for poll() RapidIO: documentation update drivers/net/rionet.c: fix ethernet address macros for LE platforms RapidIO: fix potential null deref in rio_setup_device() RapidIO: add mport driver for Tsi721 bridge ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/DMA-API.txt7
-rw-r--r--Documentation/cgroups/memory.txt1
-rw-r--r--Documentation/feature-removal-schedule.txt35
-rw-r--r--Documentation/rapidio/rapidio.txt2
-rw-r--r--Documentation/rapidio/tsi721.txt49
5 files changed, 57 insertions, 37 deletions
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index fe2326906610..66bd97a95f10 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -50,6 +50,13 @@ specify the GFP_ flags (see kmalloc) for the allocation (the
50implementation may choose to ignore flags that affect the location of 50implementation may choose to ignore flags that affect the location of
51the returned memory, like GFP_DMA). 51the returned memory, like GFP_DMA).
52 52
53void *
54dma_zalloc_coherent(struct device *dev, size_t size,
55 dma_addr_t *dma_handle, gfp_t flag)
56
57Wraps dma_alloc_coherent() and also zeroes the returned memory if the
58allocation attempt succeeded.
59
53void 60void
54dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, 61dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
55 dma_addr_t dma_handle) 62 dma_addr_t dma_handle)
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index 06eb6d957c83..cc0ebc5241b3 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -418,7 +418,6 @@ total_unevictable - sum of all children's "unevictable"
418 418
419# The following additional stats are dependent on CONFIG_DEBUG_VM. 419# The following additional stats are dependent on CONFIG_DEBUG_VM.
420 420
421inactive_ratio - VM internal parameter. (see mm/page_alloc.c)
422recent_rotated_anon - VM internal parameter. (see mm/vmscan.c) 421recent_rotated_anon - VM internal parameter. (see mm/vmscan.c)
423recent_rotated_file - VM internal parameter. (see mm/vmscan.c) 422recent_rotated_file - VM internal parameter. (see mm/vmscan.c)
424recent_scanned_anon - VM internal parameter. (see mm/vmscan.c) 423recent_scanned_anon - VM internal parameter. (see mm/vmscan.c)
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 7c799fc5b88e..3d849122b5b1 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -133,41 +133,6 @@ Who: Pavel Machek <pavel@ucw.cz>
133 133
134--------------------------- 134---------------------------
135 135
136What: sys_sysctl
137When: September 2010
138Option: CONFIG_SYSCTL_SYSCALL
139Why: The same information is available in a more convenient from
140 /proc/sys, and none of the sysctl variables appear to be
141 important performance wise.
142
143 Binary sysctls are a long standing source of subtle kernel
144 bugs and security issues.
145
146 When I looked several months ago all I could find after
147 searching several distributions were 5 user space programs and
148 glibc (which falls back to /proc/sys) using this syscall.
149
150 The man page for sysctl(2) documents it as unusable for user
151 space programs.
152
153 sysctl(2) is not generally ABI compatible to a 32bit user
154 space application on a 64bit and a 32bit kernel.
155
156 For the last several months the policy has been no new binary
157 sysctls and no one has put forward an argument to use them.
158
159 Binary sysctls issues seem to keep happening appearing so
160 properly deprecating them (with a warning to user space) and a
161 2 year grace warning period will mean eventually we can kill
162 them and end the pain.
163
164 In the mean time individual binary sysctls can be dealt with
165 in a piecewise fashion.
166
167Who: Eric Biederman <ebiederm@xmission.com>
168
169---------------------------
170
171What: /proc/<pid>/oom_adj 136What: /proc/<pid>/oom_adj
172When: August 2012 137When: August 2012
173Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's 138Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's
diff --git a/Documentation/rapidio/rapidio.txt b/Documentation/rapidio/rapidio.txt
index be70ee15f8ca..c75694b35d08 100644
--- a/Documentation/rapidio/rapidio.txt
+++ b/Documentation/rapidio/rapidio.txt
@@ -144,7 +144,7 @@ and the default device ID in order to access the device on the active port.
144 144
145After the host has completed enumeration of the entire network it releases 145After the host has completed enumeration of the entire network it releases
146devices by clearing device ID locks (calls rio_clear_locks()). For each endpoint 146devices by clearing device ID locks (calls rio_clear_locks()). For each endpoint
147in the system, it sets the Master Enable bit in the Port General Control CSR 147in the system, it sets the Discovered bit in the Port General Control CSR
148to indicate that enumeration is completed and agents are allowed to execute 148to indicate that enumeration is completed and agents are allowed to execute
149passive discovery of the network. 149passive discovery of the network.
150 150
diff --git a/Documentation/rapidio/tsi721.txt b/Documentation/rapidio/tsi721.txt
new file mode 100644
index 000000000000..335f3c6087dc
--- /dev/null
+++ b/Documentation/rapidio/tsi721.txt
@@ -0,0 +1,49 @@
1RapidIO subsystem mport driver for IDT Tsi721 PCI Express-to-SRIO bridge.
2=========================================================================
3
4I. Overview
5
6This driver implements all currently defined RapidIO mport callback functions.
7It supports maintenance read and write operations, inbound and outbound RapidIO
8doorbells, inbound maintenance port-writes and RapidIO messaging.
9
10To generate SRIO maintenance transactions this driver uses one of Tsi721 DMA
11channels. This mechanism provides access to larger range of hop counts and
12destination IDs without need for changes in outbound window translation.
13
14RapidIO messaging support uses dedicated messaging channels for each mailbox.
15For inbound messages this driver uses destination ID matching to forward messages
16into the corresponding message queue. Messaging callbacks are implemented to be
17fully compatible with RIONET driver (Ethernet over RapidIO messaging services).
18
19II. Known problems
20
21 None.
22
23III. To do
24
25 Add DMA data transfers (non-messaging).
26 Add inbound region (SRIO-to-PCIe) mapping.
27
28IV. Version History
29
30 1.0.0 - Initial driver release.
31
32V. License
33-----------------------------------------------
34
35 Copyright(c) 2011 Integrated Device Technology, Inc. All rights reserved.
36
37 This program is free software; you can redistribute it and/or modify it
38 under the terms of the GNU General Public License as published by the Free
39 Software Foundation; either version 2 of the License, or (at your option)
40 any later version.
41
42 This program is distributed in the hope that it will be useful, but WITHOUT
43 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
44 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
45 more details.
46
47 You should have received a copy of the GNU General Public License along with
48 this program; if not, write to the Free Software Foundation, Inc.,
49 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.