diff options
Diffstat (limited to 'spinlock.c')
-rw-r--r-- | spinlock.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -10,18 +10,18 @@ uint32_t kernel_lock = LOCK_FREE; void acquire_spinlock(uint32_t* lock) { - int cpu_id = lapic_cpu_number(); - cprintf ("acquire: %d\n", cpu_id); + int cpu_id = cpu(); if (*lock == cpu_id) return; while ( cmpxchg(LOCK_FREE, cpu_id, lock) != cpu_id ) { ; } + cprintf ("acquired: %d\n", cpu_id); } void release_spinlock(uint32_t* lock) { - int cpu_id = lapic_cpu_number(); + int cpu_id = cpu(); cprintf ("release: %d\n", cpu_id); if (*lock != cpu_id) panic("release_spinlock: releasing a lock that i don't own\n"); @@ -31,7 +31,7 @@ release_spinlock(uint32_t* lock) void release_grant_spinlock(uint32_t* lock, int c) { - int cpu_id = lapic_cpu_number(); + int cpu_id = cpu(); cprintf ("release_grant: %d -> %d\n", cpu_id, c); if (*lock != cpu_id) panic("release_spinlock: releasing a lock that i don't own\n"); |