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Groups > linux.kernel > #1401834
| From | Jason Low <jason.low2@hpe.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [RFC][PATCH 5/7] locking,ia64: Remove ia64 rwsem add and rwsem update |
| Date | 2016-05-17 02:50 +0200 |
| Message-ID | <rzBmV-5OI-11@gated-at.bofh.it> (permalink) |
| References | <rzBmV-5OI-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The rwsem count has been converted to an atomic variable and the rwsem code now directly uses atomic_long_add() and atomic_long_add_return(), so we can remove the ia64 implementation of rwsem_atomic_add() and rwsem_atomic_update(). Signed-off-by: Jason Low <jason.low2@hpe.com> --- arch/ia64/include/asm/rwsem.h | 7 ------- 1 file changed, 7 deletions(-) diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h index 8b23e07..dfd5895 100644 --- a/arch/ia64/include/asm/rwsem.h +++ b/arch/ia64/include/asm/rwsem.h @@ -151,11 +151,4 @@ __downgrade_write (struct rw_semaphore *sem) rwsem_downgrade_wake(sem); } -/* - * Implement atomic add functionality. These used to be "inline" functions, but GCC v3.1 - * doesn't quite optimize this stuff right and ends up with bad calls to fetchandadd. - */ -#define rwsem_atomic_add(delta, sem) atomic64_add(delta, (atomic64_t *)(&(sem)->count)) -#define rwsem_atomic_update(delta, sem) atomic64_add_return(delta, (atomic64_t *)(&(sem)->count)) - #endif /* _ASM_IA64_RWSEM_H */ -- 2.1.4
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[RFC][PATCH 0/7] locking/rwsem: Convert rwsem count to atomic_long_t Jason Low <jason.low2@hpe.com> - 2016-05-17 02:50 +0200
[RFC][PATCH 6/7] locking,s390: Remove s390 rwsem add and rwsem update Jason Low <jason.low2@hpe.com> - 2016-05-17 02:50 +0200
[RFC][PATCH 7/7] locking,asm-generic: Remove generic rwsem add and rwsem update definitions Jason Low <jason.low2@hpe.com> - 2016-05-17 02:50 +0200
[RFC][PATCH 5/7] locking,ia64: Remove ia64 rwsem add and rwsem update Jason Low <jason.low2@hpe.com> - 2016-05-17 02:50 +0200
[RFC][PATCH 1/7] locking/rwsem: Optimize write lock by reducing operations in slowpath Jason Low <jason.low2@hpe.com> - 2016-05-17 02:50 +0200
[RFC][PATCH 3/7] locking,x86: Remove x86 rwsem add and rwsem update Jason Low <jason.low2@hpe.com> - 2016-05-17 02:50 +0200
[RFC][PATCH 2/7] locking/rwsem: Convert sem->count to atomic_long_t Jason Low <jason.low2@hpe.com> - 2016-05-17 02:50 +0200
Re: [RFC][PATCH 0/7] locking/rwsem: Convert rwsem count to atomic_long_t Linus Torvalds <torvalds@linux-foundation.org> - 2016-05-17 03:20 +0200
Re: [RFC][PATCH 0/7] locking/rwsem: Convert rwsem count to atomic_long_t Peter Zijlstra <peterz@infradead.org> - 2016-05-17 13:20 +0200
Re: [RFC][PATCH 0/7] locking/rwsem: Convert rwsem count to atomic_long_t Jason Low <jason.low2@hpe.com> - 2016-05-17 19:10 +0200
Re: [RFC][PATCH 0/7] locking/rwsem: Convert rwsem count to atomic_long_t Davidlohr Bueso <dave@stgolabs.net> - 2016-05-20 08:30 +0200
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