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percpu: add @align to pcpu_fc_alloc_fn_t

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pcpu_fc_alloc_fn_t is about to see more interesting usage, add @align
parameter.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2009-08-14 15:00:50 +09:00
parent 1d9d325721
commit 3cbc856527
3 changed files with 6 additions and 5 deletions
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4
arch/x86/kernel/setup_percpu.c
View File

@ -126,9 +126,9 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
/*
* Helpers for first chunk memory allocation
*/
static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size)
static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
{
return pcpu_alloc_bootmem(cpu, size, size);
return pcpu_alloc_bootmem(cpu, size, align);
}
static void __init pcpu_fc_free(void *ptr, size_t size)

3
include/linux/percpu.h
View File

@ -71,7 +71,8 @@ extern const char *pcpu_fc_names[PCPU_FC_NR];
extern enum pcpu_fc pcpu_chosen_fc;
typedef void * (*pcpu_fc_alloc_fn_t)(unsigned int cpu, size_t size);
typedef void * (*pcpu_fc_alloc_fn_t)(unsigned int cpu, size_t size,
size_t align);
typedef void (*pcpu_fc_free_fn_t)(void *ptr, size_t size);
typedef void (*pcpu_fc_populate_pte_fn_t)(unsigned long addr);
typedef int (pcpu_fc_cpu_distance_fn_t)(unsigned int from, unsigned int to);

4
mm/percpu.c
View File

@ -1578,7 +1578,7 @@ ssize_t __init pcpu_page_first_chunk(size_t reserved_size,
for (i = 0; i < unit_pages; i++) {
void *ptr;
ptr = alloc_fn(cpu, PAGE_SIZE);
ptr = alloc_fn(cpu, PAGE_SIZE, PAGE_SIZE);
if (!ptr) {
pr_warning("PERCPU: failed to allocate %s page "
"for cpu%u\n", psize_str, cpu);
@ -1888,7 +1888,7 @@ ssize_t __init pcpu_lpage_first_chunk(size_t reserved_size, size_t dyn_size,
goto found;
continue;
found:
ptr = alloc_fn(cpu, lpage_size);
ptr = alloc_fn(cpu, lpage_size, lpage_size);
if (!ptr) {
pr_warning("PERCPU: failed to allocate large page "
"for cpu%u\n", cpu);