diff options
| author |   Yunfeng Ye <yeyunfeng@huawei.com> | 2019-10-14 16:14:59 +0800 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2019-10-17 21:31:55 +0200 |
| commit | 8a9f91c51ea72b126864e0db616b1bac12261200 (patch) | |
| tree | 2fb1ecbf3b1a7139c136ee6c8169c0e6e3ee8edc /kernel/events/ring_buffer.c | |
| parent | perf_event: Add support for LSM and SELinux checks (diff) | |
| download | linux-dev-8a9f91c51ea72b126864e0db616b1bac12261200.tar.xz linux-dev-8a9f91c51ea72b126864e0db616b1bac12261200.zip | |
perf/ring_buffer: Modify the parameter type of perf_mmap_free_page()
In perf_mmap_free_page(), the unsigned long type is converted to the
pointer type, but where the call is made, the pointer type is converted
to the unsigned long type. There is no need to do these operations.
Modify the parameter type of perf_mmap_free_page() to pointer type.
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <jolsa@redhat.co>
Cc: <acme@kernel.org>
Cc: <mingo@redhat.com>
Cc: <mark.rutland@arm.com>
Cc: <namhyung@kernel.org>
Cc: <alexander.shishkin@linux.intel.com>
Link: https://lkml.kernel.org/r/e6ae3f0c-d04c-50f9-544a-aee3b30330cd@huawei.com
Diffstat (limited to 'kernel/events/ring_buffer.c')
| -rw-r--r-- | kernel/events/ring_buffer.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index ffb59a4ef4ff..abc145cbfedf 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -799,9 +799,9 @@ fail: return NULL; } -static void perf_mmap_free_page(unsigned long addr) +static void perf_mmap_free_page(void *addr) { - struct page *page = virt_to_page((void *)addr); + struct page *page = virt_to_page(addr); page->mapping = NULL; __free_page(page); @@ -811,9 +811,9 @@ void rb_free(struct ring_buffer *rb) { int i; - perf_mmap_free_page((unsigned long)rb->user_page); + perf_mmap_free_page(rb->user_page); for (i = 0; i < rb->nr_pages; i++) - perf_mmap_free_page((unsigned long)rb->data_pages[i]); + perf_mmap_free_page(rb->data_pages[i]); kfree(rb); } |