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Diffstat (limited to 'kernel/trace/ring_buffer.c')
-rw-r--r--kernel/trace/ring_buffer.c36
1 files changed, 19 insertions, 17 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index b0c7aa407943..725153d6cf73 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -997,13 +997,14 @@ static int rb_allocate_pages(struct ring_buffer_per_cpu *cpu_buffer,
unsigned nr_pages)
{
struct buffer_page *bpage, *tmp;
- unsigned long addr;
LIST_HEAD(pages);
unsigned i;
WARN_ON(!nr_pages);
for (i = 0; i < nr_pages; i++) {
+ struct page *page;
+
bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),
GFP_KERNEL, cpu_to_node(cpu_buffer->cpu));
if (!bpage)
@@ -1013,10 +1014,11 @@ static int rb_allocate_pages(struct ring_buffer_per_cpu *cpu_buffer,
list_add(&bpage->list, &pages);
- addr = __get_free_page(GFP_KERNEL);
- if (!addr)
+ page = alloc_pages_node(cpu_to_node(cpu_buffer->cpu),
+ GFP_KERNEL, 0);
+ if (!page)
goto free_pages;
- bpage->page = (void *)addr;
+ bpage->page = page_address(page);
rb_init_page(bpage->page);
}
@@ -1045,7 +1047,7 @@ rb_allocate_cpu_buffer(struct ring_buffer *buffer, int cpu)
{
struct ring_buffer_per_cpu *cpu_buffer;
struct buffer_page *bpage;
- unsigned long addr;
+ struct page *page;
int ret;
cpu_buffer = kzalloc_node(ALIGN(sizeof(*cpu_buffer), cache_line_size()),
@@ -1067,10 +1069,10 @@ rb_allocate_cpu_buffer(struct ring_buffer *buffer, int cpu)
rb_check_bpage(cpu_buffer, bpage);
cpu_buffer->reader_page = bpage;
- addr = __get_free_page(GFP_KERNEL);
- if (!addr)
+ page = alloc_pages_node(cpu_to_node(cpu), GFP_KERNEL, 0);
+ if (!page)
goto fail_free_reader;
- bpage->page = (void *)addr;
+ bpage->page = page_address(page);
rb_init_page(bpage->page);
INIT_LIST_HEAD(&cpu_buffer->reader_page->list);
@@ -1314,7 +1316,6 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size)
unsigned nr_pages, rm_pages, new_pages;
struct buffer_page *bpage, *tmp;
unsigned long buffer_size;
- unsigned long addr;
LIST_HEAD(pages);
int i, cpu;
@@ -1375,16 +1376,17 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size)
for_each_buffer_cpu(buffer, cpu) {
for (i = 0; i < new_pages; i++) {
+ struct page *page;
bpage = kzalloc_node(ALIGN(sizeof(*bpage),
cache_line_size()),
GFP_KERNEL, cpu_to_node(cpu));
if (!bpage)
goto free_pages;
list_add(&bpage->list, &pages);
- addr = __get_free_page(GFP_KERNEL);
- if (!addr)
+ page = alloc_pages_node(cpu_to_node(cpu), GFP_KERNEL, 0);
+ if (!page)
goto free_pages;
- bpage->page = (void *)addr;
+ bpage->page = page_address(page);
rb_init_page(bpage->page);
}
}
@@ -3730,16 +3732,16 @@ EXPORT_SYMBOL_GPL(ring_buffer_swap_cpu);
* Returns:
* The page allocated, or NULL on error.
*/
-void *ring_buffer_alloc_read_page(struct ring_buffer *buffer)
+void *ring_buffer_alloc_read_page(struct ring_buffer *buffer, int cpu)
{
struct buffer_data_page *bpage;
- unsigned long addr;
+ struct page *page;
- addr = __get_free_page(GFP_KERNEL);
- if (!addr)
+ page = alloc_pages_node(cpu_to_node(cpu), GFP_KERNEL, 0);
+ if (!page)
return NULL;
- bpage = (void *)addr;
+ bpage = page_address(page);
rb_init_page(bpage);