License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:07:57 +08:00
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// SPDX-License-Identifier: GPL-2.0
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2005-04-17 06:20:36 +08:00
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/*
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* Copyright (2004) Linus Torvalds
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*
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* Author: Zwane Mwaikambo <zwane@fsmlabs.com>
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*
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[PATCH] spinlock consolidation
This patch (written by me and also containing many suggestions of Arjan van
de Ven) does a major cleanup of the spinlock code. It does the following
things:
- consolidates and enhances the spinlock/rwlock debugging code
- simplifies the asm/spinlock.h files
- encapsulates the raw spinlock type and moves generic spinlock
features (such as ->break_lock) into the generic code.
- cleans up the spinlock code hierarchy to get rid of the spaghetti.
Most notably there's now only a single variant of the debugging code,
located in lib/spinlock_debug.c. (previously we had one SMP debugging
variant per architecture, plus a separate generic one for UP builds)
Also, i've enhanced the rwlock debugging facility, it will now track
write-owners. There is new spinlock-owner/CPU-tracking on SMP builds too.
All locks have lockup detection now, which will work for both soft and hard
spin/rwlock lockups.
The arch-level include files now only contain the minimally necessary
subset of the spinlock code - all the rest that can be generalized now
lives in the generic headers:
include/asm-i386/spinlock_types.h | 16
include/asm-x86_64/spinlock_types.h | 16
I have also split up the various spinlock variants into separate files,
making it easier to see which does what. The new layout is:
SMP | UP
----------------------------|-----------------------------------
asm/spinlock_types_smp.h | linux/spinlock_types_up.h
linux/spinlock_types.h | linux/spinlock_types.h
asm/spinlock_smp.h | linux/spinlock_up.h
linux/spinlock_api_smp.h | linux/spinlock_api_up.h
linux/spinlock.h | linux/spinlock.h
/*
* here's the role of the various spinlock/rwlock related include files:
*
* on SMP builds:
*
* asm/spinlock_types.h: contains the raw_spinlock_t/raw_rwlock_t and the
* initializers
*
* linux/spinlock_types.h:
* defines the generic type and initializers
*
* asm/spinlock.h: contains the __raw_spin_*()/etc. lowlevel
* implementations, mostly inline assembly code
*
* (also included on UP-debug builds:)
*
* linux/spinlock_api_smp.h:
* contains the prototypes for the _spin_*() APIs.
*
* linux/spinlock.h: builds the final spin_*() APIs.
*
* on UP builds:
*
* linux/spinlock_type_up.h:
* contains the generic, simplified UP spinlock type.
* (which is an empty structure on non-debug builds)
*
* linux/spinlock_types.h:
* defines the generic type and initializers
*
* linux/spinlock_up.h:
* contains the __raw_spin_*()/etc. version of UP
* builds. (which are NOPs on non-debug, non-preempt
* builds)
*
* (included on UP-non-debug builds:)
*
* linux/spinlock_api_up.h:
* builds the _spin_*() APIs.
*
* linux/spinlock.h: builds the final spin_*() APIs.
*/
All SMP and UP architectures are converted by this patch.
arm, i386, ia64, ppc, ppc64, s390/s390x, x64 was build-tested via
crosscompilers. m32r, mips, sh, sparc, have not been tested yet, but should
be mostly fine.
From: Grant Grundler <grundler@parisc-linux.org>
Booted and lightly tested on a500-44 (64-bit, SMP kernel, dual CPU).
Builds 32-bit SMP kernel (not booted or tested). I did not try to build
non-SMP kernels. That should be trivial to fix up later if necessary.
I converted bit ops atomic_hash lock to raw_spinlock_t. Doing so avoids
some ugly nesting of linux/*.h and asm/*.h files. Those particular locks
are well tested and contained entirely inside arch specific code. I do NOT
expect any new issues to arise with them.
If someone does ever need to use debug/metrics with them, then they will
need to unravel this hairball between spinlocks, atomic ops, and bit ops
that exist only because parisc has exactly one atomic instruction: LDCW
(load and clear word).
From: "Luck, Tony" <tony.luck@intel.com>
ia64 fix
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjanv@infradead.org>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Mikael Pettersson <mikpe@csd.uu.se>
Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-10 15:25:56 +08:00
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* Copyright (2004, 2005) Ingo Molnar
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*
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* This file contains the spinlock/rwlock implementations for the
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* SMP and the DEBUG_SPINLOCK cases. (UP-nondebug inlines them)
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2006-09-26 16:52:28 +08:00
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*
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* Note that some architectures have special knowledge about the
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* stack frames of these functions in their profile_pc. If you
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* change anything significant here that could change the stack
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* frame contact the architecture maintainers.
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2005-04-17 06:20:36 +08:00
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*/
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#include <linux/linkage.h>
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#include <linux/preempt.h>
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#include <linux/spinlock.h>
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#include <linux/interrupt.h>
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2006-07-03 15:24:54 +08:00
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#include <linux/debug_locks.h>
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2011-05-24 02:51:41 +08:00
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#include <linux/export.h>
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2005-04-17 06:20:36 +08:00
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2009-11-09 23:21:41 +08:00
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/*
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* If lockdep is enabled then we use the non-preemption spin-ops
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* even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
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* not re-enabled during lock-acquire (which the preempt-spin-ops do):
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*/
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#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
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/*
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* The __lock_function inlines are taken from
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2017-11-03 18:59:48 +08:00
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* spinlock : include/linux/spinlock_api_smp.h
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* rwlock : include/linux/rwlock_api_smp.h
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2009-11-09 23:21:41 +08:00
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*/
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#else
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2013-09-12 05:23:23 +08:00
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/*
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* Some architectures can relax in favour of the CPU owning the lock.
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*/
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#ifndef arch_read_relax
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# define arch_read_relax(l) cpu_relax()
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#endif
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#ifndef arch_write_relax
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# define arch_write_relax(l) cpu_relax()
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#endif
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#ifndef arch_spin_relax
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# define arch_spin_relax(l) cpu_relax()
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#endif
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2009-11-09 23:21:41 +08:00
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/*
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* We build the __lock_function inlines here. They are too large for
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* inlining all over the place, but here is only one user per function
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* which embedds them into the calling _lock_function below.
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*
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* This could be a long-held lock. We both prepare to spin for a long
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* time (making _this_ CPU preemptable if possible), and we also signal
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* towards that other CPU that it should break the lock ASAP.
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*/
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#define BUILD_LOCK_OPS(op, locktype) \
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2009-12-04 04:52:18 +08:00
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void __lockfunc __raw_##op##_lock(locktype##_t *lock) \
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2009-11-09 23:21:41 +08:00
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{ \
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for (;;) { \
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preempt_disable(); \
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2009-12-04 03:55:53 +08:00
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if (likely(do_raw_##op##_trylock(lock))) \
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2009-11-09 23:21:41 +08:00
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break; \
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preempt_enable(); \
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\
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if (!(lock)->break_lock) \
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(lock)->break_lock = 1; \
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2017-11-29 02:42:18 +08:00
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\
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arch_##op##_relax(&lock->raw_lock); \
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2009-11-09 23:21:41 +08:00
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} \
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(lock)->break_lock = 0; \
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} \
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\
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2009-12-04 04:52:18 +08:00
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unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock) \
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2009-11-09 23:21:41 +08:00
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{ \
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unsigned long flags; \
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\
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for (;;) { \
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preempt_disable(); \
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local_irq_save(flags); \
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2009-12-04 03:55:53 +08:00
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if (likely(do_raw_##op##_trylock(lock))) \
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2009-11-09 23:21:41 +08:00
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break; \
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local_irq_restore(flags); \
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preempt_enable(); \
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\
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if (!(lock)->break_lock) \
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(lock)->break_lock = 1; \
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2017-11-29 02:42:18 +08:00
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\
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arch_##op##_relax(&lock->raw_lock); \
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2009-11-09 23:21:41 +08:00
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} \
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(lock)->break_lock = 0; \
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return flags; \
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} \
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\
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2009-12-04 04:52:18 +08:00
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void __lockfunc __raw_##op##_lock_irq(locktype##_t *lock) \
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2009-11-09 23:21:41 +08:00
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{ \
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2009-12-04 04:52:18 +08:00
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_raw_##op##_lock_irqsave(lock); \
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2009-11-09 23:21:41 +08:00
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} \
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\
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2009-12-04 04:52:18 +08:00
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void __lockfunc __raw_##op##_lock_bh(locktype##_t *lock) \
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2009-11-09 23:21:41 +08:00
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{ \
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unsigned long flags; \
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\
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/* */ \
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/* Careful: we must exclude softirqs too, hence the */ \
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/* irq-disabling. We use the generic preemption-aware */ \
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/* function: */ \
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/**/ \
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2009-12-04 04:52:18 +08:00
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flags = _raw_##op##_lock_irqsave(lock); \
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2009-11-09 23:21:41 +08:00
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local_bh_disable(); \
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local_irq_restore(flags); \
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} \
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/*
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* Build preemption-friendly versions of the following
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* lock-spinning functions:
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*
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* __[spin|read|write]_lock()
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* __[spin|read|write]_lock_irq()
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* __[spin|read|write]_lock_irqsave()
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* __[spin|read|write]_lock_bh()
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*/
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2009-12-03 03:02:59 +08:00
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BUILD_LOCK_OPS(spin, raw_spinlock);
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2009-11-09 23:21:41 +08:00
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BUILD_LOCK_OPS(read, rwlock);
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BUILD_LOCK_OPS(write, rwlock);
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#endif
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2009-11-09 23:21:34 +08:00
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#ifndef CONFIG_INLINE_SPIN_TRYLOCK
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2009-12-04 04:52:18 +08:00
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int __lockfunc _raw_spin_trylock(raw_spinlock_t *lock)
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2005-04-17 06:20:36 +08:00
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{
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2009-12-04 04:52:18 +08:00
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return __raw_spin_trylock(lock);
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2005-04-17 06:20:36 +08:00
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}
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2009-12-04 04:52:18 +08:00
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EXPORT_SYMBOL(_raw_spin_trylock);
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2009-08-31 20:43:37 +08:00
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#endif
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2005-04-17 06:20:36 +08:00
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2009-11-10 04:01:59 +08:00
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#ifndef CONFIG_INLINE_SPIN_TRYLOCK_BH
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2009-12-04 04:52:18 +08:00
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int __lockfunc _raw_spin_trylock_bh(raw_spinlock_t *lock)
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2005-04-17 06:20:36 +08:00
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{
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2009-12-04 04:52:18 +08:00
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return __raw_spin_trylock_bh(lock);
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2005-04-17 06:20:36 +08:00
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}
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2009-12-04 04:52:18 +08:00
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EXPORT_SYMBOL(_raw_spin_trylock_bh);
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2009-08-31 20:43:37 +08:00
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#endif
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2005-04-17 06:20:36 +08:00
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2009-11-10 04:01:59 +08:00
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#ifndef CONFIG_INLINE_SPIN_LOCK
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2009-12-04 04:52:18 +08:00
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void __lockfunc _raw_spin_lock(raw_spinlock_t *lock)
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2005-04-17 06:20:36 +08:00
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{
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2009-12-04 04:52:18 +08:00
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__raw_spin_lock(lock);
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2005-04-17 06:20:36 +08:00
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}
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2009-12-04 04:52:18 +08:00
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EXPORT_SYMBOL(_raw_spin_lock);
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2009-08-31 20:43:37 +08:00
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#endif
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2005-04-17 06:20:36 +08:00
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2009-11-09 23:21:34 +08:00
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#ifndef CONFIG_INLINE_SPIN_LOCK_IRQSAVE
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2009-12-04 04:52:18 +08:00
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unsigned long __lockfunc _raw_spin_lock_irqsave(raw_spinlock_t *lock)
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2005-04-17 06:20:36 +08:00
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{
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2009-12-04 04:52:18 +08:00
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return __raw_spin_lock_irqsave(lock);
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2005-04-17 06:20:36 +08:00
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}
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2009-12-04 04:52:18 +08:00
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EXPORT_SYMBOL(_raw_spin_lock_irqsave);
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2009-08-31 20:43:37 +08:00
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#endif
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2005-04-17 06:20:36 +08:00
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2009-11-09 23:21:34 +08:00
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#ifndef CONFIG_INLINE_SPIN_LOCK_IRQ
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2009-12-04 04:52:18 +08:00
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void __lockfunc _raw_spin_lock_irq(raw_spinlock_t *lock)
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2005-04-17 06:20:36 +08:00
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{
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2009-12-04 04:52:18 +08:00
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__raw_spin_lock_irq(lock);
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2005-04-17 06:20:36 +08:00
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}
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2009-12-04 04:52:18 +08:00
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EXPORT_SYMBOL(_raw_spin_lock_irq);
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2009-08-31 20:43:37 +08:00
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#endif
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2005-04-17 06:20:36 +08:00
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2009-11-09 23:21:34 +08:00
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#ifndef CONFIG_INLINE_SPIN_LOCK_BH
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2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_spin_lock_bh(raw_spinlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_spin_lock_bh(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_spin_lock_bh);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2012-03-22 17:55:08 +08:00
|
|
|
#ifdef CONFIG_UNINLINE_SPIN_UNLOCK
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_spin_unlock(raw_spinlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_spin_unlock(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_spin_unlock);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_spin_unlock_irqrestore(raw_spinlock_t *lock, unsigned long flags)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_spin_unlock_irqrestore(lock, flags);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_spin_unlock_irqrestore);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQ
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_spin_unlock_irq(raw_spinlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_spin_unlock_irq(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_spin_unlock_irq);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_SPIN_UNLOCK_BH
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_spin_unlock_bh(raw_spinlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_spin_unlock_bh(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_spin_unlock_bh);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_TRYLOCK
|
2009-12-04 04:52:18 +08:00
|
|
|
int __lockfunc _raw_read_trylock(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
return __raw_read_trylock(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_trylock);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_LOCK
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_read_lock(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_read_lock(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_lock);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_LOCK_IRQSAVE
|
2009-12-04 04:52:18 +08:00
|
|
|
unsigned long __lockfunc _raw_read_lock_irqsave(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
return __raw_read_lock_irqsave(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_lock_irqsave);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_LOCK_IRQ
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_read_lock_irq(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_read_lock_irq(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_lock_irq);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_LOCK_BH
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_read_lock_bh(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_read_lock_bh(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_lock_bh);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-09 23:21:34 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_UNLOCK
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_read_unlock(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_read_unlock(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_unlock);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-09 23:21:34 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_read_unlock_irqrestore(lock, flags);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_unlock_irqrestore);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-09 23:21:34 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_UNLOCK_IRQ
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_read_unlock_irq(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_read_unlock_irq(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_unlock_irq);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-09 23:21:34 +08:00
|
|
|
#ifndef CONFIG_INLINE_READ_UNLOCK_BH
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_read_unlock_bh(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_read_unlock_bh(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_read_unlock_bh);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifndef CONFIG_INLINE_WRITE_TRYLOCK
|
2009-12-04 04:52:18 +08:00
|
|
|
int __lockfunc _raw_write_trylock(rwlock_t *lock)
|
2009-11-10 04:01:59 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
return __raw_write_trylock(lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_trylock);
|
2009-11-10 04:01:59 +08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef CONFIG_INLINE_WRITE_LOCK
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_write_lock(rwlock_t *lock)
|
2009-11-10 04:01:59 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_write_lock(lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef CONFIG_INLINE_WRITE_LOCK_IRQSAVE
|
2009-12-04 04:52:18 +08:00
|
|
|
unsigned long __lockfunc _raw_write_lock_irqsave(rwlock_t *lock)
|
2009-11-10 04:01:59 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
return __raw_write_lock_irqsave(lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_lock_irqsave);
|
2009-11-10 04:01:59 +08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef CONFIG_INLINE_WRITE_LOCK_IRQ
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_write_lock_irq(rwlock_t *lock)
|
2009-11-10 04:01:59 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_write_lock_irq(lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_lock_irq);
|
2009-11-10 04:01:59 +08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef CONFIG_INLINE_WRITE_LOCK_BH
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_write_lock_bh(rwlock_t *lock)
|
2009-11-10 04:01:59 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_write_lock_bh(lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_lock_bh);
|
2009-11-10 04:01:59 +08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef CONFIG_INLINE_WRITE_UNLOCK
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_write_unlock(rwlock_t *lock)
|
2009-11-10 04:01:59 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_write_unlock(lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_unlock);
|
2009-11-10 04:01:59 +08:00
|
|
|
#endif
|
|
|
|
|
2009-11-09 23:21:34 +08:00
|
|
|
#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_write_unlock_irqrestore(lock, flags);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_unlock_irqrestore);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-09 23:21:34 +08:00
|
|
|
#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQ
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_write_unlock_irq(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_write_unlock_irq(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_unlock_irq);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-09 23:21:34 +08:00
|
|
|
#ifndef CONFIG_INLINE_WRITE_UNLOCK_BH
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_write_unlock_bh(rwlock_t *lock)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-12-04 04:52:18 +08:00
|
|
|
__raw_write_unlock_bh(lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_write_unlock_bh);
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-11-10 04:01:59 +08:00
|
|
|
#ifdef CONFIG_DEBUG_LOCK_ALLOC
|
|
|
|
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_spin_lock_nested(raw_spinlock_t *lock, int subclass)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-11-10 04:01:59 +08:00
|
|
|
preempt_disable();
|
|
|
|
spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
|
2009-12-04 03:55:53 +08:00
|
|
|
LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_spin_lock_nested);
|
2009-11-10 04:01:59 +08:00
|
|
|
|
2009-12-04 04:52:18 +08:00
|
|
|
unsigned long __lockfunc _raw_spin_lock_irqsave_nested(raw_spinlock_t *lock,
|
2009-11-10 04:01:59 +08:00
|
|
|
int subclass)
|
|
|
|
{
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
local_irq_save(flags);
|
|
|
|
preempt_disable();
|
|
|
|
spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
|
2009-12-04 03:55:53 +08:00
|
|
|
LOCK_CONTENDED_FLAGS(lock, do_raw_spin_trylock, do_raw_spin_lock,
|
|
|
|
do_raw_spin_lock_flags, &flags);
|
2009-11-10 04:01:59 +08:00
|
|
|
return flags;
|
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_spin_lock_irqsave_nested);
|
2009-11-10 04:01:59 +08:00
|
|
|
|
2009-12-04 04:52:18 +08:00
|
|
|
void __lockfunc _raw_spin_lock_nest_lock(raw_spinlock_t *lock,
|
2009-11-10 04:01:59 +08:00
|
|
|
struct lockdep_map *nest_lock)
|
|
|
|
{
|
|
|
|
preempt_disable();
|
|
|
|
spin_acquire_nest(&lock->dep_map, 0, 0, nest_lock, _RET_IP_);
|
2009-12-04 03:55:53 +08:00
|
|
|
LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
}
|
2009-12-04 04:52:18 +08:00
|
|
|
EXPORT_SYMBOL(_raw_spin_lock_nest_lock);
|
2009-11-10 04:01:59 +08:00
|
|
|
|
2009-08-31 20:43:37 +08:00
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-05-13 03:20:44 +08:00
|
|
|
notrace int in_lock_functions(unsigned long addr)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
/* Linker adds these: start and end of __lockfunc functions */
|
|
|
|
extern char __lock_text_start[], __lock_text_end[];
|
|
|
|
|
|
|
|
return addr >= (unsigned long)__lock_text_start
|
|
|
|
&& addr < (unsigned long)__lock_text_end;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(in_lock_functions);
|