aboutsummaryrefslogtreecommitdiffstats
path: root/mm
diff options
context:
space:
mode:
Diffstat (limited to 'mm')
-rw-r--r--mm/allocpercpu.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c
index 843364594e23..4297bc41bfd2 100644
--- a/mm/allocpercpu.c
+++ b/mm/allocpercpu.c
@@ -18,27 +18,28 @@
18 * Depopulating per-cpu data for a cpu going offline would be a typical 18 * Depopulating per-cpu data for a cpu going offline would be a typical
19 * use case. You need to register a cpu hotplug handler for that purpose. 19 * use case. You need to register a cpu hotplug handler for that purpose.
20 */ 20 */
21void percpu_depopulate(void *__pdata, int cpu) 21static void percpu_depopulate(void *__pdata, int cpu)
22{ 22{
23 struct percpu_data *pdata = __percpu_disguise(__pdata); 23 struct percpu_data *pdata = __percpu_disguise(__pdata);
24 24
25 kfree(pdata->ptrs[cpu]); 25 kfree(pdata->ptrs[cpu]);
26 pdata->ptrs[cpu] = NULL; 26 pdata->ptrs[cpu] = NULL;
27} 27}
28EXPORT_SYMBOL_GPL(percpu_depopulate);
29 28
30/** 29/**
31 * percpu_depopulate_mask - depopulate per-cpu data for some cpu's 30 * percpu_depopulate_mask - depopulate per-cpu data for some cpu's
32 * @__pdata: per-cpu data to depopulate 31 * @__pdata: per-cpu data to depopulate
33 * @mask: depopulate per-cpu data for cpu's selected through mask bits 32 * @mask: depopulate per-cpu data for cpu's selected through mask bits
34 */ 33 */
35void __percpu_depopulate_mask(void *__pdata, cpumask_t *mask) 34static void __percpu_depopulate_mask(void *__pdata, cpumask_t *mask)
36{ 35{
37 int cpu; 36 int cpu;
38 for_each_cpu_mask_nr(cpu, *mask) 37 for_each_cpu_mask_nr(cpu, *mask)
39 percpu_depopulate(__pdata, cpu); 38 percpu_depopulate(__pdata, cpu);
40} 39}
41EXPORT_SYMBOL_GPL(__percpu_depopulate_mask); 40
41#define percpu_depopulate_mask(__pdata, mask) \
42 __percpu_depopulate_mask((__pdata), &(mask))
42 43
43/** 44/**
44 * percpu_populate - populate per-cpu data for given cpu 45 * percpu_populate - populate per-cpu data for given cpu
@@ -51,7 +52,7 @@ EXPORT_SYMBOL_GPL(__percpu_depopulate_mask);
51 * use case. You need to register a cpu hotplug handler for that purpose. 52 * use case. You need to register a cpu hotplug handler for that purpose.
52 * Per-cpu object is populated with zeroed buffer. 53 * Per-cpu object is populated with zeroed buffer.
53 */ 54 */
54void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu) 55static void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu)
55{ 56{
56 struct percpu_data *pdata = __percpu_disguise(__pdata); 57 struct percpu_data *pdata = __percpu_disguise(__pdata);
57 int node = cpu_to_node(cpu); 58 int node = cpu_to_node(cpu);
@@ -68,7 +69,6 @@ void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu)
68 pdata->ptrs[cpu] = kzalloc(size, gfp); 69 pdata->ptrs[cpu] = kzalloc(size, gfp);
69 return pdata->ptrs[cpu]; 70 return pdata->ptrs[cpu];
70} 71}
71EXPORT_SYMBOL_GPL(percpu_populate);
72 72
73/** 73/**
74 * percpu_populate_mask - populate per-cpu data for more cpu's 74 * percpu_populate_mask - populate per-cpu data for more cpu's
@@ -79,8 +79,8 @@ EXPORT_SYMBOL_GPL(percpu_populate);
79 * 79 *
80 * Per-cpu objects are populated with zeroed buffers. 80 * Per-cpu objects are populated with zeroed buffers.
81 */ 81 */
82int __percpu_populate_mask(void *__pdata, size_t size, gfp_t gfp, 82static int __percpu_populate_mask(void *__pdata, size_t size, gfp_t gfp,
83 cpumask_t *mask) 83 cpumask_t *mask)
84{ 84{
85 cpumask_t populated; 85 cpumask_t populated;
86 int cpu; 86 int cpu;
@@ -94,7 +94,9 @@ int __percpu_populate_mask(void *__pdata, size_t size, gfp_t gfp,
94 cpu_set(cpu, populated); 94 cpu_set(cpu, populated);
95 return 0; 95 return 0;
96} 96}
97EXPORT_SYMBOL_GPL(__percpu_populate_mask); 97
98#define percpu_populate_mask(__pdata, size, gfp, mask) \
99 __percpu_populate_mask((__pdata), (size), (gfp), &(mask))
98 100
99/** 101/**
100 * percpu_alloc_mask - initial setup of per-cpu data 102 * percpu_alloc_mask - initial setup of per-cpu data