diff options
| author |   Will Deacon <will.deacon@arm.com> | 2017-10-03 19:25:29 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-10-10 11:50:19 +0200 |
| commit | a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299 (patch) | |
| tree | 4b0f4364502ec0e8f790ebbe61fa3f4b019a667c /include/linux/rwlock.h | |
| parent | locking/arch: Remove dummy arch_{read,spin,write}_relax() implementations (diff) | |
| download | linux-dev-a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299.tar.xz linux-dev-a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299.zip | |
locking/arch: Remove dummy arch_{read,spin,write}_lock_flags() implementations
The arch_{read,spin,write}_lock_flags() macros are simply mapped to the
non-flags versions by the majority of architectures, so do this in core
code and remove the dummy implementations. Also remove the implementation
in spinlock_up.h, since all callers of do_raw_spin_lock_flags() call
local_irq_save(flags) anyway.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: paulmck@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1507055129-12300-4-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/rwlock.h')
| -rw-r--r-- | include/linux/rwlock.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/rwlock.h b/include/linux/rwlock.h index 766c5ca5cbd1..3dcd617e65ae 100644 --- a/include/linux/rwlock.h +++ b/include/linux/rwlock.h @@ -38,6 +38,15 @@ do { \ extern int do_raw_write_trylock(rwlock_t *lock); extern void do_raw_write_unlock(rwlock_t *lock) __releases(lock); #else + +#ifndef arch_read_lock_flags +# define arch_read_lock_flags(lock, flags) arch_read_lock(lock) +#endif + +#ifndef arch_write_lock_flags +# define arch_write_lock_flags(lock, flags) arch_write_lock(lock) +#endif + # define do_raw_read_lock(rwlock) do {__acquire(lock); arch_read_lock(&(rwlock)->raw_lock); } while (0) # define do_raw_read_lock_flags(lock, flags) \ do {__acquire(lock); arch_read_lock_flags(&(lock)->raw_lock, *(flags)); } while (0) |