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Diffstat (limited to 'lib/debugobjects.c')
-rw-r--r--lib/debugobjects.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index d78673e7dc56..dc78217b2199 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -52,7 +52,10 @@ static int debug_objects_fixups __read_mostly;
52static int debug_objects_warnings __read_mostly; 52static int debug_objects_warnings __read_mostly;
53static int debug_objects_enabled __read_mostly 53static int debug_objects_enabled __read_mostly
54 = CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT; 54 = CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT;
55 55static int debug_objects_pool_size __read_mostly
56 = ODEBUG_POOL_SIZE;
57static int debug_objects_pool_min_level __read_mostly
58 = ODEBUG_POOL_MIN_LEVEL;
56static struct debug_obj_descr *descr_test __read_mostly; 59static struct debug_obj_descr *descr_test __read_mostly;
57 60
58/* 61/*
@@ -94,13 +97,13 @@ static void fill_pool(void)
94 struct debug_obj *new; 97 struct debug_obj *new;
95 unsigned long flags; 98 unsigned long flags;
96 99
97 if (likely(obj_pool_free >= ODEBUG_POOL_MIN_LEVEL)) 100 if (likely(obj_pool_free >= debug_objects_pool_min_level))
98 return; 101 return;
99 102
100 if (unlikely(!obj_cache)) 103 if (unlikely(!obj_cache))
101 return; 104 return;
102 105
103 while (obj_pool_free < ODEBUG_POOL_MIN_LEVEL) { 106 while (obj_pool_free < debug_objects_pool_min_level) {
104 107
105 new = kmem_cache_zalloc(obj_cache, gfp); 108 new = kmem_cache_zalloc(obj_cache, gfp);
106 if (!new) 109 if (!new)
@@ -176,7 +179,7 @@ static void free_obj_work(struct work_struct *work)
176 unsigned long flags; 179 unsigned long flags;
177 180
178 raw_spin_lock_irqsave(&pool_lock, flags); 181 raw_spin_lock_irqsave(&pool_lock, flags);
179 while (obj_pool_free > ODEBUG_POOL_SIZE) { 182 while (obj_pool_free > debug_objects_pool_size) {
180 obj = hlist_entry(obj_pool.first, typeof(*obj), node); 183 obj = hlist_entry(obj_pool.first, typeof(*obj), node);
181 hlist_del(&obj->node); 184 hlist_del(&obj->node);
182 obj_pool_free--; 185 obj_pool_free--;
@@ -206,7 +209,7 @@ static void free_object(struct debug_obj *obj)
206 * schedule work when the pool is filled and the cache is 209 * schedule work when the pool is filled and the cache is
207 * initialized: 210 * initialized:
208 */ 211 */
209 if (obj_pool_free > ODEBUG_POOL_SIZE && obj_cache) 212 if (obj_pool_free > debug_objects_pool_size && obj_cache)
210 sched = 1; 213 sched = 1;
211 hlist_add_head(&obj->node, &obj_pool); 214 hlist_add_head(&obj->node, &obj_pool);
212 obj_pool_free++; 215 obj_pool_free++;
@@ -1126,4 +1129,11 @@ void __init debug_objects_mem_init(void)
1126 pr_warn("out of memory.\n"); 1129 pr_warn("out of memory.\n");
1127 } else 1130 } else
1128 debug_objects_selftest(); 1131 debug_objects_selftest();
1132
1133 /*
1134 * Increase the thresholds for allocating and freeing objects
1135 * according to the number of possible CPUs available in the system.
1136 */
1137 debug_objects_pool_size += num_possible_cpus() * 32;
1138 debug_objects_pool_min_level += num_possible_cpus() * 4;
1129} 1139}