From: Michal Hocko <mhocko@kernel.org> To: LKML <linux-kernel@vger.kernel.org> Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>, "David S. Miller" <davem@davemloft.net>, Tony Luck <tony.luck@intel.com>, Andrew Morton <akpm@linux-foundation.org>, Chris Zankel <chris@zankel.net>, Max Filippov <jcmvbkbc@gmail.com>, x86@kernel.org, linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-arch@vger.kernel.org, Michal Hocko <mhocko@suse.com> Subject: [PATCH 10/11] x86, rwsem: provide __down_write_killable Date: Fri, 01 Apr 2016 11:04:54 +0000 [thread overview] Message-ID: <1459508695-14915-11-git-send-email-mhocko@kernel.org> (raw) In-Reply-To: <1459508695-14915-1-git-send-email-mhocko@kernel.org> From: Michal Hocko <mhocko@suse.com> which uses the same fast path as __down_write except it falls back to call_rwsem_down_write_failed_killable slow path and return -EINTR if killed. To prevent from code duplication extract the skeleton of __down_write into a helper macro which just takes the semaphore and the slow path function to be called. Signed-off-by: Michal Hocko <mhocko@suse.com> --- arch/x86/include/asm/rwsem.h | 41 ++++++++++++++++++++++++++++------------- arch/x86/lib/rwsem.S | 8 ++++++++ 2 files changed, 36 insertions(+), 13 deletions(-) diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h index d79a218675bc..4c3d90dbe89a 100644 --- a/arch/x86/include/asm/rwsem.h +++ b/arch/x86/include/asm/rwsem.h @@ -99,21 +99,36 @@ static inline int __down_read_trylock(struct rw_semaphore *sem) /* * lock for writing */ +#define ____down_write(sem, slow_path) \ +({ \ + long tmp; \ + struct rw_semaphore* ret = sem; \ + asm volatile("# beginning down_write\n\t" \ + LOCK_PREFIX " xadd %1,(%2)\n\t" \ + /* adds 0xffff0001, returns the old value */ \ + " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t" \ + /* was the active mask 0 before? */\ + " jz 1f\n" \ + " call " slow_path "\n" \ + "1:\n" \ + "# ending down_write" \ + : "+m" (sem->count), "=d" (tmp), "+a" (ret) \ + : "a" (sem), "1" (RWSEM_ACTIVE_WRITE_BIAS) \ + : "memory", "cc"); \ + ret; \ +}) + static inline void __down_write(struct rw_semaphore *sem) { - long tmp; - asm volatile("# beginning down_write\n\t" - LOCK_PREFIX " xadd %1,(%2)\n\t" - /* adds 0xffff0001, returns the old value */ - " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t" - /* was the active mask 0 before? */ - " jz 1f\n" - " call call_rwsem_down_write_failed\n" - "1:\n" - "# ending down_write" - : "+m" (sem->count), "=d" (tmp) - : "a" (sem), "1" (RWSEM_ACTIVE_WRITE_BIAS) - : "memory", "cc"); + ____down_write(sem, "call_rwsem_down_write_failed"); +} + +static inline int __down_write_killable(struct rw_semaphore *sem) +{ + if (IS_ERR(____down_write(sem, "call_rwsem_down_write_failed_killable"))) + return -EINTR; + + return 0; } /* diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S index 40027db99140..d1a1397e1fb3 100644 --- a/arch/x86/lib/rwsem.S +++ b/arch/x86/lib/rwsem.S @@ -101,6 +101,14 @@ ENTRY(call_rwsem_down_write_failed) ret ENDPROC(call_rwsem_down_write_failed) +ENTRY(call_rwsem_down_write_failed_killable) + save_common_regs + movq %rax,%rdi + call rwsem_down_write_failed_killable + restore_common_regs + ret +ENDPROC(call_rwsem_down_write_failed_killable) + ENTRY(call_rwsem_wake) /* do nothing if still outstanding active readers */ __ASM_HALF_SIZE(dec) %__ASM_HALF_REG(dx) -- 2.8.0.rc3
WARNING: multiple messages have this Message-ID (diff)
From: Michal Hocko <mhocko@kernel.org> To: LKML <linux-kernel@vger.kernel.org> Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>, "David S. Miller" <davem@davemloft.net>, Tony Luck <tony.luck@intel.com>, Andrew Morton <akpm@linux-foundation.org>, Chris Zankel <chris@zankel.net>, Max Filippov <jcmvbkbc@gmail.com>, x86@kernel.org, linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-arch@vger.kernel.org, Michal Hocko <mhocko@suse.com> Subject: [PATCH 10/11] x86, rwsem: provide __down_write_killable Date: Fri, 1 Apr 2016 13:04:54 +0200 [thread overview] Message-ID: <1459508695-14915-11-git-send-email-mhocko@kernel.org> (raw) In-Reply-To: <1459508695-14915-1-git-send-email-mhocko@kernel.org> From: Michal Hocko <mhocko@suse.com> which uses the same fast path as __down_write except it falls back to call_rwsem_down_write_failed_killable slow path and return -EINTR if killed. To prevent from code duplication extract the skeleton of __down_write into a helper macro which just takes the semaphore and the slow path function to be called. Signed-off-by: Michal Hocko <mhocko@suse.com> --- arch/x86/include/asm/rwsem.h | 41 ++++++++++++++++++++++++++++------------- arch/x86/lib/rwsem.S | 8 ++++++++ 2 files changed, 36 insertions(+), 13 deletions(-) diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h index d79a218675bc..4c3d90dbe89a 100644 --- a/arch/x86/include/asm/rwsem.h +++ b/arch/x86/include/asm/rwsem.h @@ -99,21 +99,36 @@ static inline int __down_read_trylock(struct rw_semaphore *sem) /* * lock for writing */ +#define ____down_write(sem, slow_path) \ +({ \ + long tmp; \ + struct rw_semaphore* ret = sem; \ + asm volatile("# beginning down_write\n\t" \ + LOCK_PREFIX " xadd %1,(%2)\n\t" \ + /* adds 0xffff0001, returns the old value */ \ + " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t" \ + /* was the active mask 0 before? */\ + " jz 1f\n" \ + " call " slow_path "\n" \ + "1:\n" \ + "# ending down_write" \ + : "+m" (sem->count), "=d" (tmp), "+a" (ret) \ + : "a" (sem), "1" (RWSEM_ACTIVE_WRITE_BIAS) \ + : "memory", "cc"); \ + ret; \ +}) + static inline void __down_write(struct rw_semaphore *sem) { - long tmp; - asm volatile("# beginning down_write\n\t" - LOCK_PREFIX " xadd %1,(%2)\n\t" - /* adds 0xffff0001, returns the old value */ - " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t" - /* was the active mask 0 before? */ - " jz 1f\n" - " call call_rwsem_down_write_failed\n" - "1:\n" - "# ending down_write" - : "+m" (sem->count), "=d" (tmp) - : "a" (sem), "1" (RWSEM_ACTIVE_WRITE_BIAS) - : "memory", "cc"); + ____down_write(sem, "call_rwsem_down_write_failed"); +} + +static inline int __down_write_killable(struct rw_semaphore *sem) +{ + if (IS_ERR(____down_write(sem, "call_rwsem_down_write_failed_killable"))) + return -EINTR; + + return 0; } /* diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S index 40027db99140..d1a1397e1fb3 100644 --- a/arch/x86/lib/rwsem.S +++ b/arch/x86/lib/rwsem.S @@ -101,6 +101,14 @@ ENTRY(call_rwsem_down_write_failed) ret ENDPROC(call_rwsem_down_write_failed) +ENTRY(call_rwsem_down_write_failed_killable) + save_common_regs + movq %rax,%rdi + call rwsem_down_write_failed_killable + restore_common_regs + ret +ENDPROC(call_rwsem_down_write_failed_killable) + ENTRY(call_rwsem_wake) /* do nothing if still outstanding active readers */ __ASM_HALF_SIZE(dec) %__ASM_HALF_REG(dx) -- 2.8.0.rc3
next prev parent reply other threads:[~2016-04-01 11:04 UTC|newest] Thread overview: 226+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-02-29 12:58 [PATCH 0/11] introduce down_write_killable for rw_semaphore Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 01/11] locking, rwsem: get rid of __down_write_nested Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 02/11] locking, rwsem: drop explicit memory barriers Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 03/11] locking, rwsem: introduce basis for down_write_killable Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-03-30 13:25 ` Peter Zijlstra 2016-03-30 13:25 ` Peter Zijlstra 2016-03-31 8:33 ` Michal Hocko 2016-03-31 8:33 ` Michal Hocko 2016-03-31 8:44 ` Peter Zijlstra 2016-03-31 8:44 ` Peter Zijlstra 2016-03-31 8:55 ` [PATCH] " Michal Hocko 2016-03-31 8:55 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 04/11] alpha, rwsem: provide __down_write_killable Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 05/11] ia64, " Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 06/11] s390, " Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 07/11] sh, " Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 08/11] sparc, " Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 09/11] xtensa, " Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 10/11] x86, " Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-02-29 12:58 ` [PATCH 11/11] locking, rwsem: provide down_write_killable Michal Hocko 2016-02-29 12:58 ` Michal Hocko 2016-03-30 13:32 ` [PATCH 0/11] introduce down_write_killable for rw_semaphore Peter Zijlstra 2016-03-30 13:32 ` Peter Zijlstra 2016-03-31 8:59 ` Michal Hocko 2016-03-31 8:59 ` Michal Hocko 2016-03-31 9:20 ` Ingo Molnar 2016-03-31 9:20 ` Ingo Molnar 2016-03-31 10:58 ` Michal Hocko 2016-03-31 10:58 ` Michal Hocko 2016-03-31 17:03 ` Andrew Morton 2016-03-31 17:03 ` Andrew Morton 2016-04-01 6:33 ` Ingo Molnar 2016-04-01 6:33 ` Ingo Molnar 2016-04-01 9:21 ` Michal Hocko 2016-04-01 9:21 ` Michal Hocko 2016-04-01 9:50 ` Ingo Molnar 2016-04-01 9:50 ` Ingo Molnar 2016-04-01 10:52 ` Michal Hocko 2016-04-01 10:52 ` Michal Hocko 2016-04-01 7:26 ` Michal Hocko 2016-04-01 7:26 ` Michal Hocko 2016-04-01 9:11 ` Andrew Morton 2016-04-01 9:11 ` Andrew Morton 2016-04-01 11:04 ` [PATCH 0/11] introduce down_write_killable for rw_semaphore v2 Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-01 11:04 ` [PATCH 01/11] locking, rwsem: get rid of __down_write_nested Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-02 0:28 ` Davidlohr Bueso 2016-04-02 0:28 ` Davidlohr Bueso 2016-04-01 11:04 ` [PATCH 02/11] locking, rwsem: drop explicit memory barriers Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-02 1:17 ` Davidlohr Bueso 2016-04-02 1:17 ` Davidlohr Bueso 2016-04-04 9:03 ` Michal Hocko 2016-04-04 9:03 ` Michal Hocko 2016-04-04 9:06 ` [PATCH 1/2] xtensa, rwsem: drop superfluous arch specific implementation Michal Hocko 2016-04-04 9:06 ` Michal Hocko 2016-04-04 9:06 ` [PATCH 2/2] sh, " Michal Hocko 2016-04-04 9:06 ` Michal Hocko 2016-04-06 9:26 ` Peter Zijlstra 2016-04-06 9:26 ` Peter Zijlstra 2016-04-06 9:50 ` Geert Uytterhoeven 2016-04-06 9:50 ` Geert Uytterhoeven 2016-04-06 10:27 ` Peter Zijlstra 2016-04-06 10:27 ` Peter Zijlstra 2016-04-04 10:23 ` [PATCH 1/2] xtensa, " Max Filippov 2016-04-04 10:23 ` Max Filippov 2016-04-06 9:06 ` [PATCH] sparc, " Michal Hocko 2016-04-06 9:06 ` Michal Hocko 2016-04-06 9:06 ` Michal Hocko 2016-04-06 9:06 ` Michal Hocko 2016-04-01 11:04 ` [PATCH 03/11] locking, rwsem: introduce basis for down_write_killable Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-02 4:41 ` Davidlohr Bueso 2016-04-02 4:41 ` Davidlohr Bueso 2016-04-04 9:17 ` Michal Hocko 2016-04-04 9:17 ` Michal Hocko 2016-04-04 9:21 ` Peter Zijlstra 2016-04-04 9:21 ` Peter Zijlstra 2016-04-07 6:58 ` Davidlohr Bueso 2016-04-07 6:58 ` Davidlohr Bueso 2016-04-07 7:38 ` Michal Hocko 2016-04-07 7:38 ` Michal Hocko 2016-05-10 10:43 ` Tetsuo Handa 2016-05-10 11:53 ` Michal Hocko 2016-05-10 12:38 ` Peter Zijlstra 2016-05-10 13:57 ` Tetsuo Handa 2016-05-11 7:23 ` Michal Hocko 2016-05-11 8:28 ` Michal Hocko 2016-05-11 8:44 ` Peter Zijlstra 2016-05-11 9:04 ` Michal Hocko 2016-05-11 9:17 ` Peter Zijlstra 2016-05-11 9:31 ` Michal Hocko 2016-05-11 9:41 ` Peter Zijlstra 2016-05-11 13:59 ` Michal Hocko 2016-05-11 18:03 ` Michal Hocko 2016-05-12 11:57 ` [PATCH] locking, rwsem: Fix down_write_killable() Peter Zijlstra 2016-05-12 12:15 ` [tip:locking/rwsem] locking/rwsem: " tip-bot for Peter Zijlstra 2016-05-12 16:59 ` [PATCH] locking, rwsem: " Michal Hocko 2016-05-15 20:57 ` [tip:locking/rwsem] locking/rwsem: " tip-bot for Peter Zijlstra 2016-05-12 12:12 ` [PATCH 03/11] locking, rwsem: introduce basis for down_write_killable Peter Zijlstra 2016-05-12 12:19 ` Michal Hocko 2016-05-12 13:58 ` Peter Zijlstra 2016-05-12 19:42 ` Waiman Long 2016-05-11 8:35 ` Peter Zijlstra 2016-05-11 9:02 ` Michal Hocko 2016-04-01 11:04 ` [PATCH 04/11] alpha, rwsem: provide __down_write_killable Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-01 11:04 ` [PATCH 05/11] ia64, " Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-01 11:04 ` [PATCH 06/11] s390, " Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-01 11:04 ` [PATCH 07/11] sh, " Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-01 11:04 ` [PATCH 08/11] sparc, " Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-01 11:04 ` [PATCH 09/11] xtensa, " Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-01 11:04 ` Michal Hocko [this message] 2016-04-01 11:04 ` [PATCH 10/11] x86, " Michal Hocko 2016-04-06 18:31 ` Peter Zijlstra 2016-04-06 18:31 ` Peter Zijlstra 2016-04-01 11:04 ` [PATCH 11/11] locking, rwsem: provide down_write_killable Michal Hocko 2016-04-01 11:04 ` Michal Hocko 2016-04-07 15:12 ` [PATCH 0/11] introduce down_write_killable for rw_semaphore v3 Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-07 15:12 ` [PATCH 01/11] locking, rwsem: get rid of __down_write_nested Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-13 11:32 ` [tip:locking/rwsem] locking/rwsem: Get rid of __down_write_nested() tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 02/11] locking, rwsem: drop explicit memory barriers Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-13 11:32 ` [tip:locking/rwsem] locking/rwsem: Drop " tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 03/11] xtensa, rwsem: drop superfluous arch specific implementation Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-13 11:33 ` [tip:locking/rwsem] locking/rwsem, xtensa: Drop " tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 04/11] sh, rwsem: drop " Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-13 11:33 ` [tip:locking/rwsem] locking/rwsem, sh: Drop " tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 05/11] sparc, rwsem: drop " Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-13 11:33 ` [tip:locking/rwsem] locking/rwsem, sparc: Drop " tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 06/11] locking, rwsem: introduce basis for down_write_killable Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-13 11:34 ` [tip:locking/rwsem] locking/rwsem: Introduce basis for down_write_killable() tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 07/11] alpha, rwsem: provide __down_write_killable Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-22 9:42 ` [tip:locking/rwsem] locking/rwsem, alpha: Provide __down_write_killable() tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 08/11] ia64, rwsem: provide __down_write_killable Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-07 17:28 ` Sergei Shtylyov 2016-04-07 17:28 ` Sergei Shtylyov 2016-04-08 6:22 ` Michal Hocko 2016-04-08 6:22 ` Michal Hocko 2016-04-22 9:43 ` [tip:locking/rwsem] locking/rwsem, ia64: Provide __down_write_killable() tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 09/11] s390, rwsem: provide __down_write_killable Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-22 9:43 ` [tip:locking/rwsem] locking/rwsem, s390: Provide __down_write_killable() tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 10/11] x86, rwsem: provide __down_write_killable Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-13 9:08 ` Ingo Molnar 2016-04-13 9:08 ` Ingo Molnar 2016-04-13 9:16 ` Michal Hocko 2016-04-13 9:16 ` Michal Hocko 2016-04-13 9:19 ` Ingo Molnar 2016-04-13 9:19 ` Ingo Molnar 2016-04-13 10:27 ` Ingo Molnar 2016-04-13 10:27 ` Ingo Molnar 2016-04-13 12:49 ` Michal Hocko 2016-04-13 12:49 ` Michal Hocko 2016-04-13 12:49 ` Michal Hocko 2016-04-13 12:49 ` Michal Hocko 2016-04-17 16:59 ` Michal Hocko 2016-04-17 16:59 ` Michal Hocko 2016-04-17 16:59 ` Michal Hocko 2016-04-20 13:40 ` Peter Zijlstra 2016-04-20 13:40 ` Peter Zijlstra 2016-04-20 13:40 ` Peter Zijlstra 2016-04-20 18:04 ` H. Peter Anvin 2016-04-20 18:04 ` H. Peter Anvin 2016-04-20 20:45 ` Borislav Petkov 2016-04-20 20:45 ` Borislav Petkov 2016-04-20 20:58 ` Michal Hocko 2016-04-20 20:58 ` Michal Hocko 2016-04-20 21:06 ` H. Peter Anvin 2016-04-20 21:06 ` H. Peter Anvin 2016-04-20 21:36 ` Borislav Petkov 2016-04-20 21:36 ` Borislav Petkov 2016-04-20 22:29 ` H. Peter Anvin 2016-04-20 22:29 ` H. Peter Anvin 2016-04-21 11:35 ` Borislav Petkov 2016-04-21 11:35 ` Borislav Petkov 2016-04-21 13:09 ` Michal Hocko 2016-04-21 13:09 ` Michal Hocko 2016-04-21 13:21 ` Borislav Petkov 2016-04-21 13:21 ` Borislav Petkov 2016-04-27 12:02 ` [PATCH] x86/locking/rwsem: Cleanup ____down_write() Borislav Petkov 2016-04-27 12:02 ` Borislav Petkov 2016-04-28 10:27 ` [tip:locking/rwsem] locking/rwsem, x86: Clean up ____down_write() tip-bot for Borislav Petkov 2016-04-22 6:53 ` [PATCH 10/11] x86, rwsem: provide __down_write_killable Ingo Molnar 2016-04-22 6:53 ` Ingo Molnar 2016-04-22 6:53 ` Ingo Molnar 2016-04-13 9:57 ` [PATCH] x86: add frame annotation for call_rwsem_down_write_failed_killable Michal Hocko 2016-04-13 9:57 ` Michal Hocko 2016-04-13 9:57 ` Michal Hocko 2016-04-22 9:44 ` [tip:locking/rwsem] locking/rwsem, x86: Add frame annotation for call_rwsem_down_write_failed_killable() tip-bot for Michal Hocko 2016-04-22 9:43 ` [tip:locking/rwsem] locking/rwsem, x86: Provide __down_write_killable() tip-bot for Michal Hocko 2016-04-07 15:12 ` [PATCH 11/11] locking, rwsem: provide down_write_killable Michal Hocko 2016-04-07 15:12 ` Michal Hocko 2016-04-22 9:44 ` [tip:locking/rwsem] locking/rwsem: Provide down_write_killable() tip-bot for Michal Hocko 2016-04-12 9:37 ` [PATCH 0/11] introduce down_write_killable for rw_semaphore v3 Michal Hocko 2016-04-12 9:37 ` Michal Hocko 2016-04-12 15:40 ` Peter Zijlstra 2016-04-12 15:40 ` Peter Zijlstra 2016-04-12 18:01 ` Michal Hocko 2016-04-12 18:01 ` Michal Hocko
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