Commit graph

151065 commits

Author SHA1 Message Date
Robert P. J. Day
1581c1cede 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>
2009-06-09 22:37:52 +02:00
Manish Katiyar
ad6ccfad6f 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>
2009-06-09 22:37:52 +02:00
Markus Heidelberg
12122f6232 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>
2009-06-09 22:37:51 +02:00
Markus Heidelberg
284026cdfb 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>
2009-06-09 22:37:51 +02:00
Markus Heidelberg
8d90c97e46 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>
2009-06-09 22:37:50 +02:00
Markus Heidelberg
fbb8637444 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>
2009-06-09 22:37:50 +02:00
Markus Heidelberg
7298b93601 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>
2009-06-09 22:37:49 +02:00
Markus Heidelberg
98403a9138 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>
2009-06-09 22:37:48 +02:00
Markus Heidelberg
c26dd719a5 gitignore: ignore Kconfig i18n files
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09 22:37:47 +02:00
Markus Heidelberg
98f540d31b 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>
2009-06-09 22:37:47 +02:00
Markus Heidelberg
590a585729 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>
2009-06-09 22:37:46 +02:00
Markus Heidelberg
6f26e5e412 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>
2009-06-09 22:37:46 +02:00
Cheng Renquan
b8b0618cf6 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>
2009-06-09 22:37:45 +02:00
David VomLehn
3e56f08bff 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>
2009-06-09 22:37:45 +02:00
Jiri Slaby
2d51005c27 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>
2009-06-09 22:37:44 +02:00
Amerigo Wang
cefdff4b4d 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>
2009-06-09 22:37:43 +02:00
Jan Beulich
fd6c3a8dc4 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>
2009-06-09 22:37:43 +02:00
maximilian attems
6d9923219c 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>
2009-06-09 22:37:42 +02:00
maximilian attems
54c3355658 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>
2009-06-09 22:37:42 +02:00
maximilian attems
8ebc2fe9c5 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>
2009-06-09 22:37:41 +02:00
maximilian attems
f7a2c31f1e 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>
2009-06-09 22:37:41 +02:00
Frans Pop
4bf4cd4939 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>
2009-06-09 22:37:40 +02:00
maximilian attems
edec611db0 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>
2009-06-09 22:37:39 +02:00
Frans Pop
9461f666e4 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>
2009-06-09 22:37:39 +02:00
Frans Pop
a83ca2777f 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>
2009-06-09 22:37:38 +02:00
Frans Pop
fe233cb6bf 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>
2009-06-09 22:37:37 +02:00
Frans Pop
c72c75db86 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>
2009-06-09 22:37:37 +02:00
Frans Pop
4964451a32 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>
2009-06-09 22:37:36 +02:00
Frans Pop
a89b433bdd 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>
2009-06-09 22:37:36 +02:00
Frans Pop
3e2ab2563a 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>
2009-06-09 22:37:35 +02:00
Frans Pop
4f66199b4b 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>
2009-06-09 22:37:35 +02:00
Peter Korsgaard
af6c159885 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>
2009-06-09 22:37:34 +02:00
Steven Rostedt
725c624a58 tracing: add trace_seq_vprint interface
The code to update the print formats for events requires a vprintf
format in the trace_seq. This patch adds that interface.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-09 15:17:32 -04:00
Michael Cousin
fa0864b26b drm/i915: Skip lvds with Aopen i945GTt-VFA
Signed-off-by: Michael Cousin <mika.cousin@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 11:56:12 -07:00
Steven Rostedt
6556d1df88 tracing: fix the block trace points print size
The sector field is either u64 or unsigned long depending on
the arch. This patch casts the sector to unsigned long long to
prevent the printf warnings.

[ Impact: remove compile warnings ]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-09 14:17:36 -04:00
Zhenyu Wang
80a538e49d drm/i915: Enable probe on new chipset
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 11:15:40 -07:00
Zhenyu Wang
036a4a7d92 drm/i915: handle interrupt on new chipset
Update interrupt handling methods for IGDNG with new registers
for display and graphics interrupt functions. As we won't use
irq-based vblank sync in dri2, so display interrupt on new chip
will be used for hotplug only in future.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 11:15:27 -07:00
Jesse Barnes
d765898970 drm/i915: enable MCHBAR if needed
Using the new PNP resource checking code, this patch allows the i915
driver to allocate MCHBAR space if needed and use the BAR to determine
current memory settings.

[apw@canonical.com: moved to the new generic PNP resource interface]
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

failure to update-index after git-am --reject to hand-apply

Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 11:15:07 -07:00
Li Zefan
55782138e4 tracing/events: convert block trace points to TRACE_EVENT()
TRACE_EVENT is a more generic way to define tracepoints. Doing so adds
these new capabilities to this tracepoint:

  - zero-copy and per-cpu splice() tracing
  - binary tracing without printf overhead
  - structured logging records exposed under /debug/tracing/events
  - trace events embedded in function tracer output and other plugins
  - user-defined, per tracepoint filter expressions
  ...

Cons:

  - no dev_t info for the output of plug, unplug_timer and unplug_io events.
    no dev_t info for getrq and sleeprq events if bio == NULL.
    no dev_t info for rq_abort,...,rq_requeue events if rq->rq_disk == NULL.

    This is mainly because we can't get the deivce from a request queue.
    But this may change in the future.

  - A packet command is converted to a string in TP_assign, not TP_print.
    While blktrace do the convertion just before output.

    Since pc requests should be rather rare, this is not a big issue.

  - In blktrace, an event can have 2 different print formats, but a TRACE_EVENT
    has a unique format, which means we have some unused data in a trace entry.

    The overhead is minimized by using __dynamic_array() instead of __array().

I've benchmarked the ioctl blktrace vs the splice based TRACE_EVENT tracing:

      dd                   dd + ioctl blktrace       dd + TRACE_EVENT (splice)
1     7.36s, 42.7 MB/s     7.50s, 42.0 MB/s          7.41s, 42.5 MB/s
2     7.43s, 42.3 MB/s     7.48s, 42.1 MB/s          7.43s, 42.4 MB/s
3     7.38s, 42.6 MB/s     7.45s, 42.2 MB/s          7.41s, 42.5 MB/s

So the overhead of tracing is very small, and no regression when using
those trace events vs blktrace.

And the binary output of TRACE_EVENT is much smaller than blktrace:

 # ls -l -h
 -rw-r--r-- 1 root root 8.8M 06-09 13:24 sda.blktrace.0
 -rw-r--r-- 1 root root 195K 06-09 13:24 sda.blktrace.1
 -rw-r--r-- 1 root root 2.7M 06-09 13:25 trace_splice.out

Following are some comparisons between TRACE_EVENT and blktrace:

plug:
  kjournald-480   [000]   303.084981: block_plug: [kjournald]
  kjournald-480   [000]   303.084981:   8,0    P   N [kjournald]

unplug_io:
  kblockd/0-118   [000]   300.052973: block_unplug_io: [kblockd/0] 1
  kblockd/0-118   [000]   300.052974:   8,0    U   N [kblockd/0] 1

remap:
  kjournald-480   [000]   303.085042: block_remap: 8,0 W 102736992 + 8 <- (8,8) 33384
  kjournald-480   [000]   303.085043:   8,0    A   W 102736992 + 8 <- (8,8) 33384

bio_backmerge:
  kjournald-480   [000]   303.085086: block_bio_backmerge: 8,0 W 102737032 + 8 [kjournald]
  kjournald-480   [000]   303.085086:   8,0    M   W 102737032 + 8 [kjournald]

getrq:
  kjournald-480   [000]   303.084974: block_getrq: 8,0 W 102736984 + 8 [kjournald]
  kjournald-480   [000]   303.084975:   8,0    G   W 102736984 + 8 [kjournald]

  bash-2066  [001]  1072.953770:   8,0    G   N [bash]
  bash-2066  [001]  1072.953773: block_getrq: 0,0 N 0 + 0 [bash]

rq_complete:
  konsole-2065  [001]   300.053184: block_rq_complete: 8,0 W () 103669040 + 16 [0]
  konsole-2065  [001]   300.053191:   8,0    C   W 103669040 + 16 [0]

  ksoftirqd/1-7   [001]  1072.953811:   8,0    C   N (5a 00 08 00 00 00 00 00 24 00) [0]
  ksoftirqd/1-7   [001]  1072.953813: block_rq_complete: 0,0 N (5a 00 08 00 00 00 00 00 24 00) 0 + 0 [0]

rq_insert:
  kjournald-480   [000]   303.084985: block_rq_insert: 8,0 W 0 () 102736984 + 8 [kjournald]
  kjournald-480   [000]   303.084986:   8,0    I   W 102736984 + 8 [kjournald]

Changelog from v2 -> v3:

- use the newly introduced __dynamic_array().

Changelog from v1 -> v2:

- use __string() instead of __array() to minimize the memory required
  to store hex dump of rq->cmd().

- support large pc requests.

- add missing blk_fill_rwbs_rq() in block_rq_requeue TRACE_EVENT.

- some cleanups.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4A2DF669.5070905@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-09 12:34:23 -04:00
Steven Rostedt
f57a8a1911 ring-buffer: fix ret in rb_add_time_stamp
The update of ret got mistakenly added to the if statement of
rb_try_to_discard. The variable ret should be 1 on commit and zero
otherwise.

[ Impact: fix compiler warning and real bug ]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-09 12:33:30 -04:00
Linus Torvalds
13df635f08 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  kvm: fix kvm reboot crash when MAXSMP is used
  cpumask: alloc zeroed cpumask for static cpumask_var_ts
  cpumask: introduce zalloc_cpumask_var
2009-06-09 08:48:32 -07:00
Linus Torvalds
9cdba30283 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  bsg: setting rq->bio to NULL
2009-06-09 08:47:43 -07:00
Linus Torvalds
fd4d34295b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  cls_cgroup: Fix oops when user send improperly 'tc filter add' request
  r8169: fix crash when large packets are received
2009-06-09 08:47:27 -07:00
Linus Torvalds
4d11eff668 Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
  md/raid5: fix bug in reshape code when chunk_size decreases.
  md/raid5 - avoid deadlocks in get_active_stripe during reshape
  md/raid5: use conf->raid_disks in preference to mddev->raid_disk
2009-06-09 08:41:22 -07:00
Alan Cox
238ddbb98c [SCSI] gdth: fix overlapping snprintf users
Closes-bug: http://bugzilla.kernel.org/show_bug.cgi?id=13438
Closes-bug: http://bugzilla.kernel.org/show_bug.cgi?id=13437
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-09 10:31:46 -05:00
Michael Chan
cf4e636385 [SCSI] bnx2i: Add bnx2i iSCSI driver.
New iSCSI driver for Broadcom BNX2 devices.  The driver interfaces with
the CNIC driver to access the hardware.

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-09 10:22:45 -05:00
Michael Chan
a463696039 [SCSI] cnic: Add new Broadcom CNIC driver.
The CNIC driver controls BNX2 hardware rings and resources used by
iSCSI.  Most hardware resources for iSCSI are separate from those
used for ethernet networking.

iSCSI uses a separate MAC address and IP address.  The CNIC driver
creates a UIO interface to handle the non-offloaded packets such as
ARP, etc in userspace.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-09 10:22:42 -05:00
Michael Chan
4edd473f20 [SCSI] bnx2: Add support for CNIC driver.
Add interface and functions to support a new CNIC driver to drive
the Broadcom bnx2 hardware for iSCSI offload.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-09 10:22:38 -05:00
Michael Chan
43514774ff [SCSI] iscsi class: Add new NETLINK_ISCSI messages for cnic/bnx2i driver.
Add ISCSI_NETLINK messages for iSCSI NICs to get information such as
path from userspace.  Original iscsid messages are now always sent as
multicast to group 1.  The new messages are sent to group 2.

The multicast changes were made by Mike Christie.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-09 10:22:35 -05:00
Chuck Ebbert
0b8c3d5ab0 x86: Clear TS in irq_ts_save() when in an atomic section
The dynamic FPU context allocation changes caused the padlock driver
to generate the below warning. Fix it by masking TS when doing padlock
encryption operations in an atomic section.

This solves:

BUG: sleeping function called from invalid context at mm/slub.c:1602
in_atomic(): 1, irqs_disabled(): 0, pid: 82, name: cryptomgr_test
Pid: 82, comm: cryptomgr_test Not tainted 2.6.29.4-168.test7.fc11.x86_64 #1
Call Trace:
[<ffffffff8103ff16>] __might_sleep+0x10b/0x110
[<ffffffff810cd3b2>] kmem_cache_alloc+0x37/0xf1
[<ffffffff81018505>] init_fpu+0x49/0x8a
[<ffffffff81012a83>] math_state_restore+0x3e/0xbc
[<ffffffff813ac6d0>] do_device_not_available+0x9/0xb
[<ffffffff810123ab>] device_not_available+0x1b/0x20
[<ffffffffa001c066>] ? aes_crypt+0x66/0x74 [padlock_aes]
[<ffffffff8119a51a>] ? blkcipher_walk_next+0x257/0x2e0
[<ffffffff8119a731>] ? blkcipher_walk_first+0x18e/0x19d
[<ffffffffa001c1fe>] aes_encrypt+0x9d/0xe5 [padlock_aes]
[<ffffffffa0027253>] crypt+0x6b/0x114 [xts]
[<ffffffffa001c161>] ? aes_encrypt+0x0/0xe5 [padlock_aes]
[<ffffffffa001c161>] ? aes_encrypt+0x0/0xe5 [padlock_aes]
[<ffffffffa0027390>] encrypt+0x49/0x4b [xts]
[<ffffffff81199acc>] async_encrypt+0x3c/0x3e
[<ffffffff8119dafc>] test_skcipher+0x1da/0x658
[<ffffffff811979c3>] ? crypto_spawn_tfm+0x8e/0xb1
[<ffffffff8119672d>] ? __crypto_alloc_tfm+0x11b/0x15f
[<ffffffff811979c3>] ? crypto_spawn_tfm+0x8e/0xb1
[<ffffffff81199dbe>] ? skcipher_geniv_init+0x2b/0x47
[<ffffffff8119a905>] ? async_chainiv_init+0x5c/0x61
[<ffffffff8119dfdd>] alg_test_skcipher+0x63/0x9b
[<ffffffff8119e1bc>] alg_test+0x12d/0x175
[<ffffffff8119c488>] cryptomgr_test+0x38/0x54
[<ffffffff8119c450>] ? cryptomgr_test+0x0/0x54
[<ffffffff8105c6c9>] kthread+0x4d/0x78
[<ffffffff8101264a>] child_rip+0xa/0x20
[<ffffffff81011f67>] ? restore_args+0x0/0x30
[<ffffffff8105c67c>] ? kthread+0x0/0x78
[<ffffffff81012640>] ? child_rip+0x0/0x20

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <20090609104050.50158cfe@dhcp-100-2-144.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-09 16:50:43 +02:00