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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 20:58:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 20:58:09 -0800
commit2a7d2b96d5cba7568139d9ab157a0e97ab32440f (patch)
treead029d8cc7b7068b7250e914360ec6315fdfa114 /Documentation
parente3c4877de8b9d93bd47b6ee88eb594b1c1e10da5 (diff)
parentb67bfe0d42cac56c512dd5da4b1b347a23f4b70a (diff)
downloadlinaro-lsk-2a7d2b96d5cba7568139d9ab157a0e97ab32440f.tar.gz
Merge branch 'akpm' (final batch from Andrew)
Merge third patch-bumb from Andrew Morton: "This wraps me up for -rc1. - Lots of misc stuff and things which were deferred/missed from patchbombings 1 & 2. - ocfs2 things - lib/scatterlist - hfsplus - fatfs - documentation - signals - procfs - lockdep - coredump - seqfile core - kexec - Tejun's large IDR tree reworkings - ipmi - partitions - nbd - random() things - kfifo - tools/testing/selftests updates - Sasha's large and pointless hlist cleanup" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (163 commits) hlist: drop the node parameter from iterators kcmp: make it depend on CHECKPOINT_RESTORE selftests: add a simple doc tools/testing/selftests/Makefile: rearrange targets selftests/efivarfs: add create-read test selftests/efivarfs: add empty file creation test selftests: add tests for efivarfs kfifo: fix kfifo_alloc() and kfifo_init() kfifo: move kfifo.c from kernel/ to lib/ arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS w1: add support for DS2413 Dual Channel Addressable Switch memstick: move the dereference below the NULL test drivers/pps/clients/pps-gpio.c: use devm_kzalloc Documentation/DMA-API-HOWTO.txt: fix typo include/linux/eventfd.h: fix incorrect filename is a comment mtd: mtd_stresstest: use prandom_bytes() mtd: mtd_subpagetest: convert to use prandom library mtd: mtd_speedtest: use prandom_bytes mtd: mtd_pagetest: convert to use prandom library mtd: mtd_oobtest: convert to use prandom library ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/DMA-API-HOWTO.txt9
-rw-r--r--Documentation/IPMI.txt18
-rw-r--r--Documentation/blockdev/nbd.txt38
-rw-r--r--Documentation/cgroups/blkio-controller.txt2
4 files changed, 22 insertions, 45 deletions
diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt
index 4a4fb295cee..14129f149a7 100644
--- a/Documentation/DMA-API-HOWTO.txt
+++ b/Documentation/DMA-API-HOWTO.txt
@@ -488,9 +488,10 @@ will invoke the generic mapping error check interface. Doing so will ensure
that the mapping code will work correctly on all dma implementations without
any dependency on the specifics of the underlying implementation. Using the
returned address without checking for errors could result in failures ranging
-from panics to silent data corruption. Couple of example of incorrect ways to
-check for errors that make assumptions about the underlying dma implementation
-are as follows and these are applicable to dma_map_page() as well.
+from panics to silent data corruption. A couple of examples of incorrect ways
+to check for errors that make assumptions about the underlying dma
+implementation are as follows and these are applicable to dma_map_page() as
+well.
Incorrect example 1:
dma_addr_t dma_handle;
@@ -751,7 +752,7 @@ Example 1:
dma_unmap_single(dma_handle1);
map_error_handling1:
-Example 2: (if buffers are allocated a loop, unmap all mapped buffers when
+Example 2: (if buffers are allocated in a loop, unmap all mapped buffers when
mapping error is detected in the middle)
dma_addr_t dma_addr;
diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt
index 16eb4c9e923..f13c9132e9f 100644
--- a/Documentation/IPMI.txt
+++ b/Documentation/IPMI.txt
@@ -348,34 +348,40 @@ You can change this at module load time (for a module) with:
modprobe ipmi_si.o type=<type1>,<type2>....
ports=<port1>,<port2>... addrs=<addr1>,<addr2>...
- irqs=<irq1>,<irq2>... trydefaults=[0|1]
+ irqs=<irq1>,<irq2>...
regspacings=<sp1>,<sp2>,... regsizes=<size1>,<size2>,...
regshifts=<shift1>,<shift2>,...
slave_addrs=<addr1>,<addr2>,...
force_kipmid=<enable1>,<enable2>,...
kipmid_max_busy_us=<ustime1>,<ustime2>,...
unload_when_empty=[0|1]
+ trydefaults=[0|1] trydmi=[0|1] tryacpi=[0|1]
+ tryplatform=[0|1] trypci=[0|1]
-Each of these except si_trydefaults is a list, the first item for the
+Each of these except try... items is a list, the first item for the
first interface, second item for the second interface, etc.
The si_type may be either "kcs", "smic", or "bt". If you leave it blank, it
defaults to "kcs".
-If you specify si_addrs as non-zero for an interface, the driver will
+If you specify addrs as non-zero for an interface, the driver will
use the memory address given as the address of the device. This
overrides si_ports.
-If you specify si_ports as non-zero for an interface, the driver will
+If you specify ports as non-zero for an interface, the driver will
use the I/O port given as the device address.
-If you specify si_irqs as non-zero for an interface, the driver will
+If you specify irqs as non-zero for an interface, the driver will
attempt to use the given interrupt for the device.
-si_trydefaults sets whether the standard IPMI interface at 0xca2 and
+trydefaults sets whether the standard IPMI interface at 0xca2 and
any interfaces specified by ACPE are tried. By default, the driver
tries it, set this value to zero to turn this off.
+The other try... items disable discovery by their corresponding
+names. These are all enabled by default, set them to zero to disable
+them. The tryplatform disables openfirmware.
+
The next three parameters have to do with register layout. The
registers used by the interfaces may not appear at successive
locations and they may not be in 8-bit registers. These parameters
diff --git a/Documentation/blockdev/nbd.txt b/Documentation/blockdev/nbd.txt
index aeb93ffe641..271e607304d 100644
--- a/Documentation/blockdev/nbd.txt
+++ b/Documentation/blockdev/nbd.txt
@@ -4,43 +4,13 @@
can use a remote server as one of its block devices. So every time
the client computer wants to read, e.g., /dev/nb0, it sends a
request over TCP to the server, which will reply with the data read.
- This can be used for stations with low disk space (or even diskless -
- if you boot from floppy) to borrow disk space from another computer.
- Unlike NFS, it is possible to put any filesystem on it, etc. It should
- even be possible to use NBD as a root filesystem (I've never tried),
- but it requires a user-level program to be in the initrd to start.
- It also allows you to run block-device in user land (making server
- and client physically the same computer, communicating using loopback).
-
- Current state: It currently works. Network block device is stable.
- I originally thought that it was impossible to swap over TCP. It
- turned out not to be true - swapping over TCP now works and seems
- to be deadlock-free, but it requires heavy patches into Linux's
- network layer.
-
+ This can be used for stations with low disk space (or even diskless)
+ to borrow disk space from another computer.
+ Unlike NFS, it is possible to put any filesystem on it, etc.
+
For more information, or to download the nbd-client and nbd-server
tools, go to http://nbd.sf.net/.
- Howto: To setup nbd, you can simply do the following:
-
- First, serve a device or file from a remote server:
-
- nbd-server <port-number> <device-or-file-to-serve-to-client>
-
- e.g.,
- root@server1 # nbd-server 1234 /dev/sdb1
-
- (serves sdb1 partition on TCP port 1234)
-
- Then, on the local (client) system:
-
- nbd-client <server-name-or-IP> <server-port-number> /dev/nb[0-n]
-
- e.g.,
- root@client1 # nbd-client server1 1234 /dev/nb0
-
- (creates the nb0 device on client1)
-
The nbd kernel module need only be installed on the client
system, as the nbd-server is completely in userspace. In fact,
the nbd-server has been successfully ported to other operating
diff --git a/Documentation/cgroups/blkio-controller.txt b/Documentation/cgroups/blkio-controller.txt
index b4b1fb3a83f..a794ce91a2d 100644
--- a/Documentation/cgroups/blkio-controller.txt
+++ b/Documentation/cgroups/blkio-controller.txt
@@ -75,7 +75,7 @@ Throttling/Upper Limit policy
mount -t cgroup -o blkio none /sys/fs/cgroup/blkio
- Specify a bandwidth rate on particular device for root group. The format
- for policy is "<major>:<minor> <byes_per_second>".
+ for policy is "<major>:<minor> <bytes_per_second>".
echo "8:16 1048576" > /sys/fs/cgroup/blkio/blkio.throttle.read_bps_device