30 Jul, 2009
40 commits
-
This makes delete vq the reverse of find vq.
This is required to make it possible to retry find_vqs
after a failure, otherwise the list gets corrupted.Signed-off-by: Michael S. Tsirkin
Signed-off-by: Rusty Russell -
Make vp_free_vectors do the reverse of vq_request_vectors.
Signed-off-by: Michael S. Tsirkin
Signed-off-by: Rusty Russell -
1d589bb16b825b3a7b4edd34d997f1f1f953033d "Add serial number support
for virtio_blk, V4a" extended 'struct virtio_blk_config' to 536 bytes.
Lguest and S/390 both use an 8 bit value for the feature length, and
this change broke them (if the code is naive).Signed-off-by: Rusty Russell
Cc: John Cooper
Cc: Christian Borntraeger -
"new" was freed and then dereferenced. Also the return value wasn't being
used so I modified the caller as well.Compile tested only. Found by smatch (http://repo.or.cz/w/smatch.git).
regards,
dan carpenterSigned-off-by: Dan Carpenter
Signed-off-by: Rusty Russell -
* 'i2c-fixes-rc4' of git://aeryn.fluff.org.uk/bjdooks/linux:
i2c-omap: OMAP3430 Silicon Errata 1.153
i2c-omap: In case of a NACK|ARDY|AL return from the ISR
i2c-omap: Bug in reading the RXSTAT/TXSTAT values from the I2C_BUFFSTAT register
i2c-sh_mobile: change module_init() to subsys_initcall()
i2c: strncpy does not null terminate string
i2c-s3c2410: s3c24xx_i2c_init: don't clobber IICLC value -
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM / Hibernate: Replace bdget call with simple atomic_inc of i_count
PM / ACPI: HP G7000 Notebook needs a SCI_EN resume quirk -
Add the relevant git repositories and affected files to the maintainership
of HP Jornada 700-series and Epson s1d13xxxfb support.Signed-off-by: Kristoffer Ericson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add some touchups to the sample record.
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Switch the MAINTAINERS email address format from
P: Linus Torvalds
M: torvalds@linux-foundation.orgto
M: Linus Torvalds
Mainly to ease the copy-n-pasting of maitnainer addresses into email clients.
The script to perform this operation:
#! /bin/sh
#
# Change MAINTAINERS from
# P: name
# M: address
# to:
# M: name
#
# Integrate P: and M: lines
#
perl -i -e 'local $/; while(<>) { s@P: ([^\n]+)\nM: ([^\n]+)\n@M: \1 \n@g; print; }' MAINTAINERS
#
# Quote names with periods, commas and parentheses
#
sed -r -i -e "s/^M: (.+)([\.,'\(])(.*)
Acked-by: Pavel Machek
Acked-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Allow an option to control the minimum percentage of sign-offs required
before being considered a maintainer.git-min-percent has a default value of 5
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Allow an option to control the minimum percentage of sign-offs required
before being considered a maintainer.git-min-percent has a default value of 5
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Don't require a specific file in a directory to be tested.
Also Arnd Bergmann pointed out that the MAINTAINERS pattern requirement
that directory patterns have a trailing slash was unnecessary and was
likely to be error prone. Removed that requirement.Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Thomas Woller's email address bounces
Nils Faerber isn't activeAdded Thomas Woller to CREDITS, Nils already has an entry
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Jonathan Layes is hard to find.
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
from sections that should not have them.
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
To avoid userspace build failures such as:
.../linux/uio.h:37: error: expected `=', `,', `;', `asm' or `__attribute__' before `iov_length'
.../linux/uio.h:47: error: expected declaration specifiers or `...' before `size_t'move uio functions inside a __KERNEL__ block.
Signed-off-by: Jiri Slaby
Acked-by: Sam Ravnborg
Cc: Alexander Viro
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
…_SERIAL_ATMEL_CONSOLE=N
When SERIAL_ATMEL_CONSOLE is disabled, ATMEL_CONSOLE_DEVICE is set to
NULL, and trying to access ATMEL_CONSOLE_DEVICE->flags in
atmel_serial_probe makes the compile fail. This fixes the issue by only
accessing it if CONFIG_SERIAL_ATMEL_CONSOLE is definedSigned-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> -
Once a structure goes over PAGE_SIZE*2, we see occasional allocation
failures. Some people have chosen to switch over to things like vmalloc()
that will let them keep array-like access to such a large structures.
But, vmalloc() has plenty of downsides.Here's an alternative. I think it's what Andrew was suggesting here:
http://lkml.org/lkml/2009/7/2/518
I call it a flexible array. It does all of its work in PAGE_SIZE bits, so
never does an order>0 allocation. The base level has
PAGE_SIZE-2*sizeof(int) bytes of storage for pointers to the second level.
So, with a 32-bit arch, you get about 4MB (4183112 bytes) of total
storage when the objects pack nicely into a page. It is half that on
64-bit because the pointers are twice the size. There's a table detailing
this in the code.There are kerneldocs for the functions, but here's an
overview:flex_array_alloc() - dynamically allocate a base structure
flex_array_free() - free the array and all of the
second-level pages
flex_array_free_parts() - free the second-level pages, but
not the base (for static bases)
flex_array_put() - copy into the array at the given index
flex_array_get() - copy out of the array at the given index
flex_array_prealloc() - preallocate the second-level pages
between the given indexes to
guarantee no allocs will occur at
put() time.We could also potentially just pass the "element_size" into each of the
API functions instead of storing it internally. That would get us one
more base pointer on 32-bit.I've been testing this by running it in userspace. The header and patch
that I've been using are here, as well as the little script I'm using to
generate the size table which goes in the kerneldocs.http://sr71.net/~dave/linux/flexarray/
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Dave Hansen
Reviewed-by: KAMEZAWA Hiroyuki
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Since commit 8dfd0374be84793360db7fff2e635d2cd3bbcb21 ("MMC core: limit
minimum initialization frequency to 400kHz") MMC core checks for minimum
frequency, and that causes following messages flood when using eSDHC
controllers:...
mmc0: Minimum clock frequency too high for identification mode
mmc0: Minimum clock frequency too high for identification mode
...The warnings are legitimate, since if we'd use 133 MHz clocks for standard
SDHCI controllers, we'd not able to scale frequency down to 400 kHz.But eSDHC controllers have a non-standard SD clock management, so we can
divide clock by 256 * 16, not just 256.This patch introduces get_min_clock() callback for sdhci core and
implements it for sdhci-of driver, and thus fixes the issue.Signed-off-by: Anton Vorontsov
Cc: Matt Fleming
Cc: Ian Molton
Cc: "Roberto A. Foglietta"
Cc: Pierre Ossman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
commit d6580a9f15238b87e618310c862231ae3f352d2d ("kexec: sysrq: simplify
sysrq-c handler") changed the behavior of sysrq-c to unconditional
dereference of NULL pointer. So in cases with CONFIG_KEXEC, where
crash_kexec() was directly called from sysrq-c before, now it can be said
that a step of "real oops" was inserted before starting kdump.However, in contrast to oops via SysRq-c from keyboard which results in
panic due to in_interrupt(), oops via "echo c > /proc/sysrq-trigger" will
not become panic unless panic_on_oops=1. It means that even if dump is
properly configured to be taken on panic, the sysrq-c from proc interface
might not start crashdump while the sysrq-c from keyboard can start
crashdump. This confuses traditional users of kdump, i.e. people who
expect sysrq-c to do common behavior in both of the keyboard and proc
interface.This patch brings the keyboard and proc interface behavior of sysrq-c in
line, by forcing panic_on_oops=1 before oops in sysrq-c handler.And some updates in documentation are included, to clarify that there is
no longer dependency with CONFIG_KEXEC, and that now the system can just
crash by sysrq-c if no dump mechanism is configured.Signed-off-by: Hidetoshi Seto
Cc: Lai Jiangshan
Cc: Ken'ichi Ohmichi
Acked-by: Neil Horman
Acked-by: Vivek Goyal
Cc: Brayan Arraes
Cc: Eric W. Biederman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Found with make headers_check
/usr/include/linux/pps.h:52: found __[us]{8,16,32,64} type without #include
Signed-off-by: Dave Jones
Cc: Rodolfo Giometti
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This file makes use of various macros defined in files like asm/current.h
or asm-generic/resource.h. All these files can be included via sched.h.
The building of the !MMU ARM kernel (with additional patches) fails
without this change.Signed-off-by: Catalin Marinas
Acked-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The DCCP protocol tries to allocate some large hash tables during
initialisation using the largest size possible. This can be larger than
what the page allocator can provide so it prints a warning. However, the
caller is able to handle the situation so this patch suppresses the
warning.Signed-off-by: Mel Gorman
Acked-by: Arnaldo Carvalho de Melo
Cc: "David S. Miller"
Cc: "Rafael J. Wysocki"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When profile= is used, a large buffer is allocated early at boot. This
can be larger than what the page allocator can provide so it prints a
warning. However, the caller is able to handle the situation so this
patch suppresses the warning.Signed-off-by: Mel Gorman
Cc: "Rafael J. Wysocki"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The page allocator warns once when an order >= MAX_ORDER is specified.
This is to catch callers of the allocator that are always falling back to
their worst-case when it was not expected. However, there are cases where
the caller is behaving correctly but cannot suppress the warning. This
patch allows the warning to be suppressed by the callers by specifying
__GFP_NOWARN.Signed-off-by: Mel Gorman
Acked-by: David Rientjes
Cc: Arnaldo Carvalho de Melo
Cc: "David S. Miller"
Cc: "Rafael J. Wysocki"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
After commit ec64f51545fffbc4cb968f0cea56341a4b07e85a ("cgroup: fix
frequent -EBUSY at rmdir"), cgroup's rmdir (especially against memcg)
doesn't return -EBUSY by temporary ref counts. That commit expects all
refs after pre_destroy() is temporary but...it wasn't. Then, rmdir can
wait permanently. This patch tries to fix that and change followings.- set CGRP_WAIT_ON_RMDIR flag before pre_destroy().
- clear CGRP_WAIT_ON_RMDIR flag when the subsys finds racy case.
if there are sleeping ones, wakes them up.
- rmdir() sleeps only when CGRP_WAIT_ON_RMDIR flag is set.Tested-by: Daisuke Nishimura
Reported-by: Daisuke Nishimura
Reviewed-by: Paul Menage
Acked-by: Balbir Sigh
Signed-off-by: KAMEZAWA Hiroyuki
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Under certain circumstances msleep(1) within the loop, which waits for the
EEPROM to be finished, might take longer than the timeout. On the next
loop the status register might now return to be ready and therefore the
loop finishes. The following check now tests if a timeout occurred and if
so returns an error although the device reported it was ready.This fix replaces testing the occurrence of the timeout by testing the
"not ready" bit in the status register.Signed-off-by: Sebastian Heutling
Signed-off-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The bug was introduced by commit cc31edceee04a7b87f2be48f9489ebb72d264844
("cgroups: convert tasks file to use a seq_file with shared pid array").We cache a pid array for all threads that are opening the same "tasks"
file, but the pids in the array are always from the namespace of the
last process that opened the file, so all other threads will read pids
from that namespace instead of their own namespaces.To fix it, we maintain a list of pid arrays, which is keyed by pid_ns.
The list will be of length 1 at most time.Reported-by: Paul Menage
Idea-by: Paul Menage
Signed-off-by: Li Zefan
Reviewed-by: Serge Hallyn
Cc: Balbir Singh
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Kristoffer Ericson
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
