Hi, I was asked [1] to add following patch downstream, could it be considered upstream also? Thanks, Pavel.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=970661 >From ed791f40aa117d4fc273e4b96d9295ee9571fc96 Mon Sep 17 00:00:00 2001 From: Mark Salter <msal...@redhat.com> Date: Tue, 4 Jun 2013 17:23:01 +0200 Subject: [PATCH] Add support for TAS/S_UNLOCK for aarch64 --- src/include/storage/s_lock.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h index ce45ffe..a2d6f63 100644 --- a/src/include/storage/s_lock.h +++ b/src/include/storage/s_lock.h @@ -336,6 +336,25 @@ tas(volatile slock_t *lock) #endif /* __arm__ */ +/* + * Use gcc builtins for AArch64. + */ +#if defined(__aarch64__) && defined(HAVE_GCC_INT_ATOMICS) +#define HAS_TEST_AND_SET + +#define TAS(lock) tas(lock) + +typedef int slock_t; + +static __inline__ int +tas(volatile slock_t *lock) +{ + return __sync_lock_test_and_set(lock, 1); +} + +#define S_UNLOCK(lock) __sync_lock_release(lock) +#endif /* __aarch64__ */ + /* S/390 and S/390x Linux (32- and 64-bit zSeries) */ #if defined(__s390__) || defined(__s390x__) #define HAS_TEST_AND_SET -- 1.8.2.1 -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
