From 8251da342161767fe203627223ccd4a7026701c6 Mon Sep 17 00:00:00 2001 From: Jon Santmyer Date: Fri, 4 Sep 2026 11:31:40 -0400 Subject: initial commit. working on tasking --- arch/x86_64/lock.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 arch/x86_64/lock.c (limited to 'arch/x86_64/lock.c') diff --git a/arch/x86_64/lock.c b/arch/x86_64/lock.c new file mode 100644 index 0000000..b010ee6 --- /dev/null +++ b/arch/x86_64/lock.c @@ -0,0 +1,18 @@ +#include "lock.h" + +extern int _kernel_panic_unlock; + +void +take_mutex(atomic_flag *lock) +{ + if(_kernel_panic_unlock) return; + while(atomic_flag_test_and_set(lock)) { + __builtin_ia32_pause(); + } +} + +void +release_mutex(atomic_flag *lock) +{ + atomic_flag_clear(lock); +} -- cgit v1.2.3