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Sergei Poselenov [Fri, 5 Jun 2009 12:11:09 +0000 (16:11 +0400)]
kbuild: fix "Argument list too long" error for "make headers_check",
I'm trying to install kernel headers to build a cross-toolchain, but got
the following:
make ARCH=arm
INSTALL_HDR_PATH=/work/psl/eldk-builds/arm-2009-04-21/work/var/tmp/crosstool-0.43-3-root/usr/crosstool/gcc-4.2.2-glibc-20070515T2025-eldk/
+arm-linux-gnueabi/arm-linux-gnueabi/
headers_check
...
CHECK include/linux/raid (2 files)
CHECK include/linux/spi (1 files)
CHECK include/linux/sunrpc (1 files)
CHECK include/linux/tc_act (6 files)
CHECK include/linux/tc_ematch (4 files)
CHECK include/linux/usb (8 files)
make[2]: execvp: /bin/sh: Argument list too long
make[2]: ***
[/work/psl/eldk-builds/arm-2009-04-21/work/var/tmp/crosstool-0.43-3-root/usr/crosstool/gcc-4.2.2-glibc-20070515T2025-eldk/arm-linux-gnueab
+i/arm-linux-gnueabi//include/linux/.check]
Error 127
make[1]: *** [linux] Error 2
make: *** [headers_check] Error 2
->
Introduce use of xargs to fix this.
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Mike Frysinger [Tue, 26 May 2009 23:37:54 +0000 (19:37 -0400)]
ignore *.patch files
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
dann frazier [Fri, 5 Jun 2009 22:02:49 +0000 (15:02 -0700)]
Remove bashisms from scripts
The '-e' option to echo and brace expansion are not guaranteed to be supported
by a POSIX-compliant /bin/sh (e.g. dash)
Signed-off-by: dann frazier <dannf@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Randy Dunlap [Fri, 5 Jun 2009 22:02:47 +0000 (15:02 -0700)]
menu: fix embedded menu presentation
The STRIP_ASM_SYMS kconfig symbol mucks up the embedded menu because
STRIP_ASM_SYMS is in the middle of the embedded menu items but it does not
depend on EMBEDDED. Move it to beyond the end of the embedded menu so
that the menu is presented correctly.
Or if STRIP_ASM_SYMS should depend on EMBEDDED, that can also be fixed.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Sam Ravnborg [Fri, 5 Jun 2009 22:18:05 +0000 (00:18 +0200)]
kbuild: add hint about __refdata to modpost
As requested by Guennadi Liakhovetski
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Robert P. J. Day [Tue, 12 May 2009 20:43:36 +0000 (13:43 -0700)]
scripts/headers_check.pl: correct RE in header CONFIG leak check
Correct the regular expression in scripts/headers_check.pl to include '_'
as a valid character in the class; otherwise, the check will report a
"leaked" symbol of CONFIG_A_B_C as merely CONFIG_A.
This patch will make no difference whatsoever in the current kernel tree
as the call to the perl routine that does that check is currently
commented out:
&check_include();
&check_asm_types();
&check_sizetypes();
&check_prototypes();
# Dropped for now. Too much noise &check_config();
However, I noticed that problem when I was building the yum downloadable
kernel source rpm for fedora 11 (beta), which *does* run that check, and
that's where the problem became obvious.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Manish Katiyar [Tue, 12 May 2009 20:43:35 +0000 (13:43 -0700)]
kernel/kallsyms.c: replace deprecated __initcall with device_initcall and fix whitespace
Fix coding style whitespace issues and replace __initcall with
device_initcall. Fixed multi-line comments as per coding style.
Errors as reported by checkpatch.pl :-
Before:
total: 14 errors, 14 warnings, 487 lines checked
After :
total: 0 errors, 8 warnings, 507 lines checked
Compile tested binary verified as :-
Before:
text data bss dec hex filename
2405 4 0 2409 969 kernel/kallsyms.o
After :
text data bss dec hex filename
2405 4 0 2409 969 kernel/kallsyms.o
Signed-off-by: Manish Katiyar <mkatiyar@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:54 +0000 (01:36 +0200)]
kconfig: do not hardcode "include/config/auto.conf" filename
Regardless of KCONFIG_AUTOCONFIG, the filename written as a Make target
into "include/config/auto.conf.cmd" was always the default one.
Of course this doesn't make it work for the Kernel kbuild system, since
there the filename is hardcoded at several places in the Makefiles.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:53 +0000 (01:36 +0200)]
kconfig: do not hardcode ".config" filename
Rather than hardcoding ".config" use conf_get_configname(), which also
respects the environment variable KCONFIG_CONFIG.
This fixes "make silentoldconfig" when KCONFIG_CONFIG is used and also
suggests the given filename for "Load" and "Save as" in qconf.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:52 +0000 (01:36 +0200)]
kconfig qconf: fix the type of the desktop widget
QApplication::desktop() returns a pointer to QDesktopWidget, not to
QWidget.
Fixes the following compiler error after a quick conversion with 'qt3to4',
which occured with g++ 3.4.6 and 4.1.2, but not anymore with 4.3.2.
scripts/kconfig/qconf.cc: In constructor 'ConfigMainWindow::ConfigMainWindow()':
scripts/kconfig/qconf.cc:1289: error: cannot convert 'QDesktopWidget*' to 'QWidget*' in initialization
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:51 +0000 (01:36 +0200)]
kconfig qconf: add namespace for use of Key_ enum values
They are defined in the 'Qt' namespace.
Fixes the following compiler errors after a quick conversion with 'qt3to4',
which occured with g++ 3.4.6 and 4.1.2, but not anymore with 4.3.2.
scripts/kconfig/qconf.cc: In member function 'virtual void ConfigLineEdit::keyPressEvent(QKeyEvent*)':
scripts/kconfig/qconf.cc:311: error: 'Key_Escape' was not declared in this scope
scripts/kconfig/qconf.cc:313: error: 'Key_Return' was not declared in this scope
scripts/kconfig/qconf.cc:314: error: 'Key_Enter' was not declared in this scope
scripts/kconfig/qconf.cc: In member function 'virtual void ConfigList::keyPressEvent(QKeyEvent*)':
scripts/kconfig/qconf.cc:653: error: 'Key_Escape' was not declared in this scope
scripts/kconfig/qconf.cc:666: error: 'Key_Return' was not declared in this scope
scripts/kconfig/qconf.cc:667: error: 'Key_Enter' was not declared in this scope
scripts/kconfig/qconf.cc:681: error: 'Key_Space' was not declared in this scope
scripts/kconfig/qconf.cc:684: error: 'Key_N' was not declared in this scope
scripts/kconfig/qconf.cc:687: error: 'Key_M' was not declared in this scope
scripts/kconfig/qconf.cc:690: error: 'Key_Y' was not declared in this scope
scripts/kconfig/qconf.cc: In constructor 'ConfigMainWindow::ConfigMainWindow()':
scripts/kconfig/qconf.cc:1329: error: 'CTRL' was not declared in this scope
scripts/kconfig/qconf.cc:1329: error: 'Key_Q' was not declared in this scope
scripts/kconfig/qconf.cc:1331: error: 'Key_L' was not declared in this scope
scripts/kconfig/qconf.cc:1333: error: 'Key_S' was not declared in this scope
scripts/kconfig/qconf.cc:1340: error: 'Key_F' was not declared in this scope
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:50 +0000 (01:36 +0200)]
kconfig qconf: fix namespace for Horizontal and Vertical enum values
They were used as QSplitter::Horizontal resp. QSplitter::Vertical, but
are defined in the 'Qt' namespace.
Fixes the following compiler errors after a quick conversion with 'qt3to4',
which occured with g++ 3.4.6 and 4.1.2, but not anymore with 4.3.2.
scripts/kconfig/qconf.cc: In constructor 'ConfigSearchWindow::ConfigSearchWindow(ConfigMainWindow*, const char*)':
scripts/kconfig/qconf.cc:1213: error: 'Vertical' is not a member of 'QSplitter'
scripts/kconfig/qconf.cc: In constructor 'ConfigMainWindow::ConfigMainWindow()':
scripts/kconfig/qconf.cc:1304: error: 'Horizontal' is not a member of 'QSplitter'
scripts/kconfig/qconf.cc:1311: error: 'Vertical' is not a member of 'QSplitter'
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:49 +0000 (01:36 +0200)]
kconfig qconf: fix -Wall compiler warnings
These compiler warnings occure when adding -Wall to HOSTCXXFLAGS in
/Makefile
scripts/kconfig/qconf.h: In constructor ‘ConfigInfoView::ConfigInfoView(QWidget*, const char*)’:
scripts/kconfig/qconf.h:274: warning: ‘ConfigInfoView::menu’ will be initialized after
scripts/kconfig/qconf.h:273: warning: ‘symbol* ConfigInfoView::sym’
scripts/kconfig/qconf.cc:922: warning: when initialized here
scripts/kconfig/qconf.cc: In member function ‘void ConfigMainWindow::setMenuLink(menu*)’:
scripts/kconfig/qconf.cc:1498: warning: enumeration value ‘menuMode’ not handled in switch
scripts/kconfig/qconf.cc:1498: warning: enumeration value ‘listMode’ not handled in switch
scripts/kconfig/qconf.cc: In member function ‘void ConfigMainWindow::saveSettings()’:
scripts/kconfig/qconf.cc:1664: warning: enumeration value ‘menuMode’ not handled in switch
scripts/kconfig/qconf.cc:1664: warning: enumeration value ‘listMode’ not handled in switch
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:48 +0000 (01:36 +0200)]
gitignore: ignore Kconfig i18n files
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:47 +0000 (01:36 +0200)]
kconfig: resort the documentation of the environment variables
All the KCONFIG_ environment variables were previously located in a
section "Environment variables in 'menuconfig'", but neither are they
restricted to 'menuconfig' nor are they all used by 'menuconfig'.
Introduce the following three sections for these variables:
* Environment variables for '*config'
* Environment variables for '{allyes/allmod/allno/rand}config'
* Environment variables for 'silentoldconfig'
Furthermore this puts MENUCONFIG_MODE next to MENUCONFIG_COLOR into a
common section "User interface options for 'menuconfig'".
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:46 +0000 (01:36 +0200)]
kconfig: add a note about the deps to the 'silentoldconfig' help
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Markus Heidelberg [Sun, 17 May 2009 23:36:45 +0000 (01:36 +0200)]
kconfig: fix typo "mconfig" to "menuconfig" in a comment
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cheng Renquan [Tue, 26 May 2009 08:03:07 +0000 (16:03 +0800)]
kbuild: remove extra ifdef/endif of top Makefile
The GNU make's origin function know undefined variable well,
so the outer ifdef/endif conditional checking is unneeded.
From `info make` documentation, origin will return
`undefined'
if VARIABLE was never defined.
`command line'
if VARIABLE was defined on the command line.
...
Therefore, $(origin V) will get a value anyway, killing ifdef/endif is
viable and safe.
Furthermore, I've checked the minimal requirements from
Documentation/Changes is GNU make 3.79.1, and that version of GNU make
has support of origin function well already, so now it's safe to kill
the outer conditional checking, without upgrading the minimal
requirements.
Signed-off-by: Cheng Renquan <crq@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
David VomLehn [Sun, 31 May 2009 01:13:32 +0000 (18:13 -0700)]
kbuild/Documentation: Incorrect makefile syntax in example
There is an error in the make syntax for one of the kbuild examples
Signed-off-by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Jiri Slaby [Sun, 31 May 2009 16:05:34 +0000 (18:05 +0200)]
kbuild: allow docproc invocation from external
- getcwd returns path without a slash at the end, add the slash
- add KBUILD_SRC env support, so that we can specify path for
kernel (to know where scripts/kernel-doc resides) and SRCTREE
(for searching files referenced in .tmpl) separately
[v2]
- use KBUILD_SRC instead of a newly introduced environment variable
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Amerigo Wang [Fri, 5 Jun 2009 02:12:09 +0000 (22:12 -0400)]
kbuild: clean up scripts/headers.sh
'drop' variable is unused.
'ppc' and 'sparc64' directories don't exist in arch/,
and I think their headers can be well exported now, so
just remove them.
Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Jan Beulich [Thu, 12 Mar 2009 10:58:33 +0000 (10:58 +0000)]
initconst adjustments
- add .init.rodata to INIT_DATA, and group all initconst flavors
together
- move strings generated from __setup_param() into .init.rodata
- add .*init.rodata to modpost's sets of init sections
- make modpost warn about references between meminit and cpuinit
as well as memexit and cpuexit sections (as CPU and memory
hotplug are independently selectable features)
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
maximilian attems [Wed, 22 Apr 2009 23:12:58 +0000 (01:12 +0200)]
kbuild, deb-pkg: bump standards version
Latest Debian policy is 3.8.1.
Even if we are not yet compliant to it strive for the latest.
Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
maximilian attems [Wed, 22 Apr 2009 23:12:41 +0000 (01:12 +0200)]
kbuild, deb-pkg: fix Section field
Section "base" has been removed, the base is defined by Priority field.
For Squeeze the section should be "kernel", but as that's not yet
supported for Sarge and Etch we stay with admin for now.
Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
maximilian attems [Wed, 22 Apr 2009 23:12:21 +0000 (01:12 +0200)]
kbuild, deb-pkg: fix Provides field
kernel-image naming has been dropped for the Lenny release
and was only transitional for Etch.
As it builds modules it provides linux-modules-$version.
Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
maximilian attems [Wed, 22 Apr 2009 23:12:01 +0000 (01:12 +0200)]
kbuild, deb-pkg: fix generated package name
The binary package that make deb-pkg creates is a linux-image.
To be fixed may also be the addition of $DEB_ARCH.
Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Wed, 22 Apr 2009 23:11:43 +0000 (01:11 +0200)]
kbuild, deb-pkg: improve Source field
The Source: field is defined as the source package in the package
archive from which a binary packages are built. As deb-pkg does not
generate a source package, we should avoid to use any existing source
packages here.
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: maximilian attems <max@stro.at>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
maximilian attems [Wed, 22 Apr 2009 23:11:20 +0000 (01:11 +0200)]
kbuild, deb-pkg: improve maintainer identification
Try harder to find email and maintainer name.
Debian's own devscripts all use DEBEMAIL or DEBFULLNAME prior to an
eventual EMAIL or NAME environment variable. Match their logic.
"Anonymous" sounds nicer then "Kernel Compiler" if no name is found.
Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Fri, 24 Apr 2009 17:08:24 +0000 (19:08 +0200)]
kbuild, deb-pkg: generate debian/copyright file
On Thursday 23 April 2009, Frans Pop wrote:
Add a basic debian/copyright to the binary packages.
Based on an earlier patch from Maximilian Attems.
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: maximilian attems <max@stro.at>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Wed, 22 Apr 2009 23:10:25 +0000 (01:10 +0200)]
kbuild, deb-pkg: improve changelog entry and package descriptions
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: maximilian attems <max@stro.at>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Wed, 22 Apr 2009 23:10:10 +0000 (01:10 +0200)]
kbuild, deb-pkg: allow alternative hook scripts directory in .deb packages
Hook scripts in the default directory /etc/kernel are also executed by
official Debian kernel packages as well as kernel packages created using
make-kpkg. Allow to specify an alternative hook scripts directory by
exporting the environment variable KDEB_HOOKDIR.
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: maximilian attems <max@stro.at>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Wed, 22 Apr 2009 23:09:44 +0000 (01:09 +0200)]
kbuild, deb-pkg: allow to specify a custom revision for .deb packages
Allow to specify a custom revision for the generated .deb by
exporting the environment variable KDEB_PKGVERSION.
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: maximilian attems <max@stro.at>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Wed, 22 Apr 2009 23:09:25 +0000 (01:09 +0200)]
kbuild, deb-pkg: pass Debian maintainer script parameters to packaging hook scripts
The Debian packaging scripts created by the deb-pkg target do not pass
on the standard Debian maintainer script parameters to hook scripts,
which means that those scripts cannot tell whether they are being called
during e.g. install vs. upgrade, or removal vs. purge of the package.
As there are several variantions in how hook scripts are called from
kernel packages, we pass the parameters in the environment variable
DEB_MAINT_PARAMS rather than as extra arguments.
Bump version of builddep script to 1.3.
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: maximilian attems <max@stro.at>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Wed, 22 Apr 2009 23:09:04 +0000 (01:09 +0200)]
kbuild, deb-pkg: fix 'file not found' error when building .deb package for arm
Not all architectures prepend the $(boot) path in $(KBUILD_IMAGE).
Allow for that fact in the builddeb script. Example is arm.
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: maximilian attems <max@stro.at>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Wed, 22 Apr 2009 23:08:44 +0000 (01:08 +0200)]
kbuild, deb-pkg: refactor code to reduce duplication
Factor out code to build package into separate function and
only write "source" section for the debian/control file once.
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: maximilian attems <max@stro.at>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Wed, 22 Apr 2009 23:08:31 +0000 (01:08 +0200)]
kbuild, deb-pkg: minor general improvements in builddeb script
Minor coding style improvements and typo fix in leading comment.
Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Andres Salomon <dilinger@debian.org>
Acked-by: maximilian attems <max@stro.at>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Peter Korsgaard [Sun, 15 Feb 2009 21:15:16 +0000 (22:15 +0100)]
kconfig: handle comment entries within choice/endchoice
Implement support for comment entries within choice groups. Comment entries
are displayed visually distinct from normal configs, and selecting them is
a no-op.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Linus Torvalds [Mon, 8 Jun 2009 19:31:53 +0000 (12:31 -0700)]
async: Fix lack of boot-time console due to insufficient synchronization
Our async work synchronization was broken by "async: make sure
independent async domains can't accidentally entangle" (commit
d5a877e8dd409d8c702986d06485c374b705d340), because it would report
the wrong lowest active async ID when there was both running and
pending async work.
This caused things like no being able to read the root filesystem,
resulting in missing console devices and inability to run 'init',
causing a boot-time panic.
This fixes it by properly returning the lowest pending async ID: if
there is any running async work, that will have a lower ID than any
pending work, and we should _not_ look at the pending work list.
There were alternative patches from Jaswinder and James, but this one
also cleans up the code by removing the pointless 'ret' variable and
the unnecesary testing for an empty list around 'for_each_entry()' (if
the list is empty, the for_each_entry() thing just won't execute).
Fixes-bug: http://bugzilla.kernel.org/show_bug.cgi?id=13474
Reported-and-tested-by: Chris Clayton <chris2553@googlemail.com>
Cc: Jaswinder Singh Rajput <jaswinder@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 8 Jun 2009 16:22:53 +0000 (09:22 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
MIPS: Outline udelay and fix a few issues.
MIPS: ioctl.h: Fix headers_check warnings
MIPS: Cobalt: PCI bus is always required to obtain the board ID
MIPS: Kconfig: Remove "Support for" from Cavium system type
MIPS: Sibyte: Honor CONFIG_CMDLINE
SSB: BCM47xx: Export ssb_watchdog_timer_set
Alan Cox [Mon, 8 Jun 2009 11:31:00 +0000 (12:31 +0100)]
pata_netcell: Fix typo
The previous patch submission had a I typo I didn't catch but Bartlomiej
noted. Guess this proves the point about any patch being risky late in an rc
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 8 Jun 2009 16:05:48 +0000 (09:05 -0700)]
Merge branch 'kvm-updates/2.6.30' of git://git./virt/kvm/kvm
* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Explicity initialize cpus_hardware_enabled
Linus Torvalds [Mon, 8 Jun 2009 16:04:55 +0000 (09:04 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bart/ide-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
pdc202xx_old: fix resetproc() method
pdc202xx_old: fix 'pdc20246_dma_ops'
Ralf Baechle [Sat, 28 Feb 2009 09:44:28 +0000 (09:44 +0000)]
MIPS: Outline udelay and fix a few issues.
Outlining fixes the issue were on certain CPUs such as the R10000 family
the delay loop would need an extra cycle if it overlaps a cacheline
boundary.
The rewrite also fixes build errors with GCC 4.4 which was changed in
way incompatible with the kernel's inline assembly.
Relying on pure C for computation of the delay value removes the need for
explicit. The price we pay is a slight slowdown of the computation - to
be fixed on another day.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaswinder Singh Rajput [Thu, 4 Jun 2009 12:35:49 +0000 (18:05 +0530)]
MIPS: ioctl.h: Fix headers_check warnings
Make ioctl.h compatible with asm-generic/ioctl.h and userspace
fix the following 'make headers_check' warning:
usr/include/asm-mips/ioctl.h:64: extern's make no sense in userspace
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Tue, 2 Jun 2009 14:17:07 +0000 (23:17 +0900)]
MIPS: Cobalt: PCI bus is always required to obtain the board ID
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Tue, 2 Jun 2009 14:15:10 +0000 (23:15 +0900)]
MIPS: Kconfig: Remove "Support for" from Cavium system type
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 2 Jun 2009 18:05:28 +0000 (19:05 +0100)]
MIPS: Sibyte: Honor CONFIG_CMDLINE
Original patch by Imre Kaloz <kaloz@openwrt.org>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Matthieu Castet [Fri, 22 May 2009 20:25:04 +0000 (22:25 +0200)]
SSB: BCM47xx: Export ssb_watchdog_timer_set
this patch export ssb_watchdog_timer_set to allow to use it in a Linux
watchdog driver.
Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
Acked-by : Michael Buesch <mb@bu3sch.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Mon, 8 Jun 2009 15:29:31 +0000 (08:29 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5543/1: arm: serial amba: add missing declaration in serial.h
[ARM] pxa: fix pxa27x_udc default pullup GPIO
[ARM] pxa/imote2: fix UCAM sensor board ADC model number
mx[23]: don't put clock lookups in __initdata
fix oops when using console=ttymxcN with N > 0
[ARM] ARMv7 errata: only apply fixes when running on applicable CPU
[ARM] 5534/1: kmalloc must return a cache line aligned buffer
Linus Torvalds [Mon, 8 Jun 2009 14:53:59 +0000 (07:53 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
sdhci-of: Fix the wrong accessor to HOSTVER register
mvsdio: fix config failure with some high speed SDHC cards
mvsdio: ignore high speed timing requests from the core
mmc/omap: Use disable_irq_nosync() from within irq handlers.
sdhci-of: Add fsl,esdhc as a valid compatible to bind against
mvsdio: allow automatic loading when modular
mxcmmc: Fix missing return value checking in DMA setup code.
mxcmmc : Reset the SDHC hardware if software timeout occurs.
omap_hsmmc: Trivial fix for a typo in comment
mxcmmc: decrease minimum frequency to make MMC cards work
Avi Kivity [Sat, 6 Jun 2009 09:34:39 +0000 (12:34 +0300)]
KVM: Explicity initialize cpus_hardware_enabled
Under CONFIG_MAXSMP, cpus_hardware_enabled is allocated from the heap and
not statically initialized. This causes a crash on reboot when kvm thinks
vmx is enabled on random nonexistent cpus and accesses nonexistent percpu
lists.
Fix by explicitly clearing the variable.
Cc: stable@kernel.org
Reported-and-tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Avi Kivity <avi@redhat.com>
Alessandro Rubini [Sat, 6 Jun 2009 09:17:57 +0000 (10:17 +0100)]
[ARM] 5543/1: arm: serial amba: add missing declaration in serial.h
This header is sometimes included in the uncompress stage to get
register values, but no <linux/amba/bus.h> can be included there.
So declare "struct amba_device" here before using it in a prototype.
Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Sergei Shtylyov [Sun, 7 Jun 2009 11:52:50 +0000 (13:52 +0200)]
pdc202xx_old: fix resetproc() method
pdc202xx_reset() calls pdc202xx_reset_host() twice, for both channels, while
that function actually twiddles the single, shared software reset bit -- the
net effect is a duplicated reset and horrendous 4 second delay happening not
only on a channel reset but also when dma_lost_irq() and dma_clear() methods
are called. Fold pdc202xx_reset_host() into pdc202xx_reset(), fix printk(),
and move it before the actual reset...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Sergei Shtylyov [Sun, 7 Jun 2009 11:52:50 +0000 (13:52 +0200)]
pdc202xx_old: fix 'pdc20246_dma_ops'
Commit
ac95beedf8bc97b24f9540d4da9952f07221c023 (ide: add struct ide_port_ops
(take 2)) erroneously converted the driver's dma_timeout() and dma_lost_irq()
methods to call the driver's resetproc() method regardless of whether it was
defined for this specific controller while it hadn't been defined and hence
called for PDC20246. So the dma_clear() method, the successor of dma_timeout(),
shouldn't exist and the dma_lost_irq() method should be standard for PDC20246.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Linus Torvalds [Sat, 6 Jun 2009 21:33:54 +0000 (14:33 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
x86/pci: fix mmconfig detection with 32bit near 4g
PCI: use fixed-up device class when configuring device
Hugh Dickins [Sat, 6 Jun 2009 20:18:09 +0000 (21:18 +0100)]
integrity: fix IMA inode leak
CONFIG_IMA=y inode activity leaks iint_cache and radix_tree_node objects
until the system runs out of memory. Nowhere is calling ima_inode_free()
a.k.a. ima_iint_delete(). Fix that by calling it from destroy_inode().
Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 6 Jun 2009 19:18:14 +0000 (12:18 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
ext3/4 with synchronous writes gets wedged by Postfix
Fix nobh_truncate_page() to not pass stack garbage to get_block()
Linus Torvalds [Sat, 6 Jun 2009 19:17:03 +0000 (12:17 -0700)]
Merge branch 'upstream-linus2' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[libata] pata_ali: Use IGN_SIMPLEX
Al Viro [Wed, 13 May 2009 18:13:40 +0000 (19:13 +0100)]
ext3/4 with synchronous writes gets wedged by Postfix
OK, that's probably the easiest way to do that, as much as I don't like it...
Since iget() et.al. will not accept I_FREEING (will wait to go away
and restart), and since we'd better have serialization between new/free
on fs data structures anyway, we can afford simply skipping I_FREEING
et.al. in insert_inode_locked().
We do that from new_inode, so it won't race with free_inode in any interesting
ways and it won't race with iget (of any origin; nfsd or in case of fs
corruption a lookup) since both still will wait for I_LOCK.
Reviewed-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Jan Kara <jack@suse.cz>
Tested-by: David Watson <dbwatson@ukfsn.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Theodore Ts'o [Tue, 12 May 2009 11:37:56 +0000 (07:37 -0400)]
Fix nobh_truncate_page() to not pass stack garbage to get_block()
The nobh_truncate_page() function is used by ext2, exofs, and jfs. Of
these three, only ext2 and jfs's get_block() function pays attention
to bh->b_size --- which is normally always the filesystem blocksize
except when the get_block() function is called by either
mpage_readpage(), mpage_readpages(), or the direct I/O routines in
fs/direct_io.c.
Unfortunately, nobh_truncate_page() does not initialize map_bh before
calling the filesystem-supplied get_block() function. So ext2 and jfs
will try to calculate the number of blocks to map by taking stack
garbage and shifting it left by inode->i_blkbits. This should be
*mostly* harmless (except the filesystem will do some unnneeded work)
unless the stack garbage is less than filesystem's blocksize, in which
case maxblocks will be zero, and the attempt to find out whether or
not the filesystem has a hole at a given logical block will fail, and
the page cache entry might not get zero'ed out.
Also if the stack garbage in in map_bh->state happens to have the
BH_Mapped bit set, there could be an attempt to call readpage() on a
non-existent page, which could cause nobh_truncate_page() to return an
error when it should not.
Fix this by initializing map_bh->state and map_bh->size.
Fortunately, it's probably fairly unlikely that ext2 and jfs users
mount with nobh these days.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Alan Cox [Wed, 13 May 2009 14:02:27 +0000 (15:02 +0100)]
[libata] pata_ali: Use IGN_SIMPLEX
Some ALi devices report simplex if they have been disabled and re-enabled, and
restoring the byte does not work. Ignore it - the needed supporting logic is
already present for the SATA ULi ports.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Linus Torvalds [Fri, 5 Jun 2009 18:54:28 +0000 (11:54 -0700)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: Fix oops and use after free during space balancing
Btrfs: set device->total_disk_bytes when adding new device
Kevin Hilman [Fri, 5 Jun 2009 17:48:08 +0000 (18:48 +0100)]
mtd: davinci nand: update clock naming
DaVinci clock support has been updated in mainline.
Update clock names accordingly.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 5 Jun 2009 18:53:44 +0000 (11:53 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
ata_piix: Add HP Compaq nc6000 to the broken poweroff list
ahci: add warning messages for hp laptops with broken suspend
pata_efar: fix PIO2 underclocking
pata_legacy: wait for async probing
Ville Syrjala [Mon, 18 May 2009 22:37:44 +0000 (01:37 +0300)]
ata_piix: Add HP Compaq nc6000 to the broken poweroff list
HP Compaq nc6000 suffers from the double disk spindown issue.
Add it to the broken poweroff DMI list.
Signed-off-by: Ville Syrjala <syrjala@sci.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Sat, 30 May 2009 11:50:12 +0000 (20:50 +0900)]
ahci: add warning messages for hp laptops with broken suspend
Harddisks on HP dv[4-6] and HDX18 fail to come online after resume on
earlier BIOSen. Fortunately, HP recently released BIOS updates for
all machines to fix the issue. Detect old BIOSen, warn the user to
update BIOS on boot and suspend attempts and fail suspend.
Kudos to all the bug reporters.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: kernel.org@epperson.homelinux.net
Cc: emisca@gmail.com
Cc: Gadi Cohen <dragon@wastelands.net>
Cc: Paul Swanson <paul@procursa.com>
Cc: s@ourada.org
Cc: Trevor Davenport <trevor.davenport@gmail.com>
Cc: corruptor1972 <steven_tierney@yahoo.co.uk>
Cc: Victoria Wilson <mail@vwilson.co.uk>
Cc: khiraly <khiraly.list@gmail.com>
Cc: Sean <wollombi@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Mon, 1 Jun 2009 19:42:10 +0000 (22:42 +0300)]
pata_efar: fix PIO2 underclocking
Fix the PIO mode 2 using mode 0 timings -- this driver should enable the
fast timing bank starting with PIO2, just like the PIIX/ICH drivers do.
Also, fix/rephrase some comments while at it.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
James Bottomley [Fri, 5 Jun 2009 14:41:39 +0000 (10:41 -0400)]
pata_legacy: wait for async probing
The basic problem here that pata_legacy attaches the host, sees if it found
any devices and detaches it if none were found. With async probing, it's not
waiting until discovery is finished before deciding it has no devices and
trying the detach leading to this warning:
ata1: PATA max PIO4 cmd 0x1f0 ctl 0x3f6 irq 14
------------[ cut here ]------------
WARNING: at drivers/ata/libata-core.c:6222 ata_host_detach+0x75/0x90()
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.30-rc7 #1
Call Trace:
[<
c01fbb05>] ? ata_host_detach+0x75/0x90
[<
c01fbb05>] ? ata_host_detach+0x75/0x90
[<
c01139b5>] ? warn_slowpath_common+0x45/0x80
[<
c01139fa>] ? warn_slowpath_null+0xa/0x10
[<
c01fbb05>] ? ata_host_detach+0x75/0x90
[<
c02f40e0>] ? legacy_init+0x44e/0x87f
[<
c02f3c92>] ? legacy_init+0x0/0x87f
[<
c0101021>] ? _stext+0x21/0x140
[<
c01890ff>] ? proc_register+0x2f/0x190
[<
c018938c>] ? create_proc_entry+0x5c/0xc0
[<
c0135ebe>] ? register_irq_proc+0x6e/0x90
[<
c02e6484>] ? kernel_init+0x6e/0xbf
[<
c02e6416>] ? kernel_init+0x0/0xbf
[<
c01031d7>] ? kernel_thread_helper+0x7/0x10
---[ end trace
ef1ee36e873ae3a0 ]---
Because it detaches before the probe is complete.
One way to fix it would be to put an async_synchronize_full() before looking
for devices, which this patch does. A better way might be to separate libata
into its own domain and only wait for that.
Reported-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Linus Torvalds [Fri, 5 Jun 2009 17:46:48 +0000 (10:46 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] powernow-k8: check space_id of _PCT registers to be FFH
Dave Jones [Fri, 5 Jun 2009 16:37:07 +0000 (12:37 -0400)]
[CPUFREQ] powernow-k8: check space_id of _PCT registers to be FFH
The powernow-k8 driver checks to see that the Performance Control/Status
Registers are declared as FFH (functional fixed hardware) by the BIOS.
However, this check got broken in the commit:
0e64a0c982c06a6b8f5e2a7f29eb108fdf257b2f
[CPUFREQ] checkpatch cleanups for powernow-k8
Fix based on an original patch from Naga Chumbalkar.
Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Cc: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Linus Torvalds [Fri, 5 Jun 2009 17:21:52 +0000 (10:21 -0700)]
Revert "drm: don't associate _DRM_DRIVER maps with a master"
This reverts commit
6c51d1cfa0a370b48a157163340190cf5fd2346b, which
apparently causes DRI initialization failures on Radeons.
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Requested-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Fri, 5 Jun 2009 10:56:18 +0000 (11:56 +0100)]
ivtv: Fix PCI DMA direction
The ivtv stream buffers may be for receive or for send but the attached
sg handle is always destined cpu->device. We flush it correctly but the
allocation is wrongly done with the same type as the buffers.
See bug: http://bugzilla.kernel.org/show_bug.cgi?id=13385
(Note this doesn't close the bug - it fixes the ivtv part and in turn
the logging next shows up some rather alarming DMA sg list warnings in
libata)
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Thu, 4 Jun 2009 23:29:09 +0000 (16:29 -0700)]
ptrace: revert "ptrace_detach: the wrong wakeup breaks the ERESTARTxxx logic"
Commit
95a3540da9c81a5987be810e1d9a83640a366bd5 ("ptrace_detach: the wrong
wakeup breaks the ERESTARTxxx logic") removed the "extra"
wake_up_process() from ptrace_detach(), but as Jan pointed out this breaks
the compatibility.
I believe the changelog is right and this wake_up() is wrong in many
ways, but GDB assumes that ptrace(PTRACE_DETACH, child, 0, 0) always
wakes up the tracee.
Despite the fact this breaks SIGNAL_STOP_STOPPED/group_stop_count logic,
and despite the fact this wake_up_process() can break another
assumption: PTRACE_DETACH with SIGSTOP should leave the tracee in
TASK_STOPPED case. Because the untraced child can dequeue SIGSTOP and
call do_signal_stop() before ptrace_detach() calls wake_up_process().
Revert this change for now. We need some fixes even if we we want to keep
the current behaviour, but these fixes are not for 2.6.30.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Thu, 4 Jun 2009 23:29:08 +0000 (16:29 -0700)]
kbuild: fix detection of CONFIG_FRAME_WARN=0
The checking of CONFIG_FRAME_WARN in the top level Makefile forgot to
actually derefence the variable thus leading to an always true check.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Thu, 4 Jun 2009 23:29:07 +0000 (16:29 -0700)]
ptrace: tracehook_report_clone: fix false positives
The "trace || CLONE_PTRACE" check in tracehook_report_clone() is not right,
- If the untraced task does clone(CLONE_PTRACE) the new child is not traced,
we must not queue SIGSTOP.
- If we forked the traced task, but the tracer exits and untraces both the
forking task and the new child (after copy_process() drops tasklist_lock),
we should not queue SIGSTOP too.
Change the code to check task_ptrace() != 0 instead. This is still racy, but
the race is harmless.
We can race with another tracer attaching to this child, or the tracer can
exit and detach in parallel. But giwen that we didn't do wake_up_new_task()
yet, the child must have the pending SIGSTOP anyway.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 4 Jun 2009 22:23:51 +0000 (15:23 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/anholt/drm-intel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
drm/i915: Remove a bad BUG_ON in the fence management code.
Linus Torvalds [Thu, 4 Jun 2009 22:23:39 +0000 (15:23 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: ignore EDID with really tiny modes.
drm: don't associate _DRM_DRIVER maps with a master
drm/i915: intel_lvds.c fix section mismatch
drm: Hook up DPMS property handling in drm_crtc.c. Add drm_helper_connector_dpms.
drm: set permissions on edid file to 0444
drm: add newlines to text sysfs files
drm/radeon: fix ring free alignment calculations
drm: fix irq naming for kms drivers.
Salman Qazi [Thu, 4 Jun 2009 22:20:39 +0000 (15:20 -0700)]
drivers/char/mem.c: avoid OOM lockup during large reads from /dev/zero
While running 20 parallel instances of dd as follows:
#!/bin/bash
for i in `seq 1 20`; do
dd if=/dev/zero of=/export/hda3/dd_$i bs=
1073741824 count=1 &
done
wait
on a 16G machine, we noticed that rather than just killing the processes,
the entire kernel went down. Stracing dd reveals that it first does an
mmap2, which makes 1GB worth of zero page mappings. Then it performs a
read on those pages from /dev/zero, and finally it performs a write.
The machine died during the reads. Looking at the code, it was noticed
that /dev/zero's read operation had been changed by
557ed1fa2620dc119adb86b34c614e152a629a80 ("remove ZERO_PAGE") from giving
zero page mappings to actually zeroing the page.
The zeroing of the pages causes physical pages to be allocated to the
process. But, when the process exhausts all the memory that it can, the
kernel cannot kill it, as it is still in the kernel mode allocating more
memory. Consequently, the kernel eventually crashes.
To fix this, I propose that when a fatal signal is pending during
/dev/zero read operation, we simply return and let the user process die.
Signed-off-by: Salman Qazi <sqazi@google.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Modified error return and comment trivially. - Linus]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chris Mason [Thu, 4 Jun 2009 19:34:51 +0000 (15:34 -0400)]
Btrfs: Fix oops and use after free during space balancing
The btrfs allocator uses list_for_each to walk the available block
groups when searching for free blocks. It starts off with a hint
to help find the best block group for a given allocation.
The hint is resolved into a block group, but we don't properly check
to make sure the block group we find isn't in the middle of being
freed due to filesystem shrinking or balancing. If it is being
freed, the list pointers in it are bogus and can't be trusted. But,
the code happily goes along and uses them in the list_for_each loop,
leading to all kinds of fun.
The fix used here is to check to make sure the block group we find really
is on the list before we use it. list_del_init is used when removing
it from the list, so we can do a proper check.
The allocation clustering code has a similar bug where it will trust
the block group in the current free space cluster. If our allocation
flags have changed (going from single spindle dup to raid1 for example)
because the drives in the FS have changed, we're not allowed to use
the old block group any more.
The fix used here is to check the current cluster against the
current allocation flags.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Rusty Russell [Wed, 3 Jun 2009 05:22:24 +0000 (14:52 +0930)]
lguest: fix 'unhandled trap 13' with CONFIG_CC_STACKPROTECTOR
We don't set up the canary; let's disable stack protector on boot.c so
we can get into lguest_init, then set it up. As a side effect,
switch_to_new_gdt() sets up %fs for us properly too.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Russell King [Thu, 4 Jun 2009 16:02:58 +0000 (17:02 +0100)]
Merge branch 'fix' of git://git./linux/kernel/git/ycmiao/pxa-linux-2.6
Yan Zheng [Thu, 4 Jun 2009 13:23:50 +0000 (09:23 -0400)]
Btrfs: set device->total_disk_bytes when adding new device
It was not being properly initialized, and so the size saved to
disk was not correct.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Eric Anholt [Thu, 4 Jun 2009 11:18:14 +0000 (11:18 +0000)]
drm/i915: Remove a bad BUG_ON in the fence management code.
This could be triggered by a gtt mapping fault on 965 that decides to
remove the fence from another object that happens to be active currently.
Since the other object doesn't rely on the fence reg for its execution, we
don't wait for it to finish. We'll soon be not waiting on 915 most of the
time as well, so just drop the BUG_ON.
Signed-off-by: Eric Anholt <eric@anholt.net>
Russell King [Thu, 4 Jun 2009 11:27:18 +0000 (12:27 +0100)]
Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6
Yinghai Lu [Wed, 3 Jun 2009 07:13:13 +0000 (00:13 -0700)]
x86/pci: fix mmconfig detection with 32bit near 4g
Pascal reported and bisected a commit:
| x86/PCI: don't call e820_all_mapped with -1 in the mmconfig case
which broke one system system.
ACPI: Using IOAPIC for interrupt routing
PCI: MCFG configuration 0: base
f0000000 segment 0 buses 0 - 255
PCI: MCFG area at
f0000000 reserved in ACPI motherboard resources
PCI: Using MMCONFIG for extended config space
it didn't have
PCI: updated MCFG configuration 0: base
f0000000 segment 0 buses 0 - 63
anymore, and try to use 0xf000000 - 0xffffffff for mmconfig
For 32bit, mcfg_res->end could be 32bit only (if 64 resources aren't used)
So use end - 1 to pass the value in mcfg->end to avoid overflow.
We don't need to worry about the e820 path, they are always 64 bit.
Reported-by: Pascal Terjan <pterjan@mandriva.com>
Bisected-by: Pascal Terjan <pterjan@mandriva.com>
Tested-by: Pascal Terjan <pterjan@mandriva.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Yu Zhao [Wed, 27 May 2009 16:25:05 +0000 (00:25 +0800)]
PCI: use fixed-up device class when configuring device
The device class may be changed after the fixup, so re-read the class
value from pci_dev when configuring the device. Otherwise some devices
such as JMicron SATA controller won't work.
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Philipp Zabel [Tue, 26 May 2009 20:03:32 +0000 (22:03 +0200)]
[ARM] pxa: fix pxa27x_udc default pullup GPIO
Currently, pxa27x_udc tries to use GPIO 0 as D+ pullup if not
explicitly configured. Default to an invalid GPIO (-1) instead.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Jonathan Cameron [Mon, 25 May 2009 16:50:10 +0000 (16:50 +0000)]
[ARM] pxa/imote2: fix UCAM sensor board ADC model number
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Adam Jackson [Thu, 4 Jun 2009 00:20:34 +0000 (10:20 +1000)]
drm: ignore EDID with really tiny modes.
Some EDIDs lie and report tiny modes that aren't possible. Ignore
these modes.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ben Skeggs [Tue, 26 May 2009 00:35:52 +0000 (10:35 +1000)]
drm: don't associate _DRM_DRIVER maps with a master
A driver will use the _DRM_DRIVER map flag to indicate that it wants
to be responsible for removing the map itself, bypassing the DRM's
automagic cleanup code.
Since the multi-master changes this has been broken, resulting in some
drivers having their registers unmapped before it's finished with them.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Jaswinder Singh Rajput [Wed, 3 Jun 2009 23:41:19 +0000 (09:41 +1000)]
drm/i915: intel_lvds.c fix section mismatch
intel_no_lvds[] does not require __initdata as it is used only by
void intel_lvds_init(struct drm_device *dev).
Signed-off-by: Jaswinder Singh Rajput <jaswinder@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Keith Packard [Sun, 31 May 2009 03:42:28 +0000 (20:42 -0700)]
drm: Hook up DPMS property handling in drm_crtc.c. Add drm_helper_connector_dpms.
Making the drm_crtc.c code recognize the DPMS property and invoke the
connector->dpms function doesn't remove any capability from the driver while
reducing code duplication.
That just highlighted the problem with the existing DPMS functions which
could turn off the connector, but failed to turn off any relevant crtcs. The
new drm_helper_connector_dpms function manages all of that, using the
drm_helper-specific crtc and encoder dpms functions, automatically computing
the appropriate DPMS level for each object in the system.
This fixes the current troubles in the i915 driver which left PLLs, pipes
and planes running while in DPMS_OFF mode or even while they were unused.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Keith Packard [Sun, 31 May 2009 03:42:26 +0000 (20:42 -0700)]
drm: set permissions on edid file to 0444
Without initializing the sysfs attributes for the edid file,
it was created with mode 0, making it difficult for applications to use.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Keith Packard [Sun, 31 May 2009 03:42:25 +0000 (20:42 -0700)]
drm: add newlines to text sysfs files
The contents of various simple text files in sysfs should end with
a newline to make them easier to read from the console.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Wed, 3 Jun 2009 21:08:13 +0000 (07:08 +1000)]
drm/radeon: fix ring free alignment calculations
fd.o bz#21849
We were aligning to +16 dwords, instead of to the next 16dword
boundary in the ring. Fix the calculation to go to the next 16dword
boundary when space checking.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 2 Jun 2009 06:50:35 +0000 (16:50 +1000)]
drm: fix irq naming for kms drivers.
allocating devname in the i915 driver was a hack originally and I
forgot to figure out how to do this properly back then.
So this is the cleaner version that just picks devname or driver name
in the irq code.
It removes the devname allocs from the i915 driver.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Liu [Wed, 6 May 2009 10:40:07 +0000 (18:40 +0800)]
sdhci-of: Fix the wrong accessor to HOSTVER register
Freescale eSDHC controller has the special order for
the HOST version register. that is not same as the other's
registers. The address of HOSTVER in spec is 0xFE, and
we need use the in_be16(0xFE) to access it, not in_be16(0xFC).
Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Nicolas Pitre [Wed, 27 May 2009 02:35:34 +0000 (22:35 -0400)]
mvsdio: fix config failure with some high speed SDHC cards
Especially with Sandisk SDHC cards, the second SWITCH command was failing
with a timeout and the card was not recognized at all. However if the
system was busy, or debugging was enabled, or a udelay(100) was inserted
before the second SWITCH command in the core code, then the timing was
so that the card started to work.
With some unusual block sizes, the data FIFO status doesn't indicate a
"empty" state right away when the data transfer is done. Queuing
another data transfer in that condition results in a transfer timeout.
The empty FIFO bit eventually get set by itself in less than 50 usecs
when it is not set right away. So let's just poll for that bit before
configuring the controller with a new data transfer.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Nicolas Pitre [Fri, 15 May 2009 01:28:05 +0000 (21:28 -0400)]
mvsdio: ignore high speed timing requests from the core
Empirical evidences show that this is causing far more problems than it
solves when this mode is enabled in the host hardware. Amongst those
cards that are known to be non functional when this bit is set are:
A-Data "Speedy" 2GB SD card
Kodak 512MB SD card
Ativa 1GB MicroSD card
Marvell 8688 (WIFI/Bluetooth) SDIO card
Since those cards do work on other host controllers which do honnor the
hs timing, the issue must be with this particular host hardware.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Ben Nizette [Thu, 16 Apr 2009 05:55:21 +0000 (15:55 +1000)]
mmc/omap: Use disable_irq_nosync() from within irq handlers.
disable_irq() should wait for all running handlers to complete
before returning. As such, if it's used to disable an interrupt
from that interrupt's handler it will deadlock. This replaces
the dangerous instances with the _nosync() variant which doesn't
have this problem.
Signed-off-by: Ben Nizette <bn@niasdigital.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>