diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e3086d0fd945..0bea94af0423 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5131,17 +5131,14 @@ static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch); static DEFINE_PER_CPU(struct per_cpu_pageset, boot_pageset); static DEFINE_PER_CPU(struct per_cpu_nodestat, boot_nodestats); -/* - * Global mutex to protect against size modification of zonelists - * as well as to serialize pageset setup for the new populated zone. - */ -DEFINE_MUTEX(zonelists_mutex); - static void __build_all_zonelists(void *data) { int nid; int __maybe_unused cpu; pg_data_t *self = data; + static DEFINE_SPINLOCK(lock); + + spin_lock(&lock); #ifdef CONFIG_NUMA memset(node_load, 0, sizeof(node_load)); @@ -5173,6 +5170,8 @@ static void __build_all_zonelists(void *data) set_cpu_numa_mem(cpu, local_memory_node(cpu_to_node(cpu))); #endif } + + spin_unlock(&lock); } static noinline void __init @@ -5203,7 +5202,6 @@ build_all_zonelists_init(void) } /* - * Called with zonelists_mutex held always * unless system_state == SYSTEM_BOOTING. * * __ref due to call of __init annotated helper build_all_zonelists_init @@ -6939,9 +6937,11 @@ static void __setup_per_zone_wmarks(void) */ void setup_per_zone_wmarks(void) { - mutex_lock(&zonelists_mutex); + static DEFINE_SPINLOCK(lock); + + spin_lock(&lock); __setup_per_zone_wmarks(); - mutex_unlock(&zonelists_mutex); + spin_unlock(&lock); } /* |