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Date: Sat, 16 May 2020 18:10:37 +0800 From: Yunfeng Ye <yeyunfeng@...wei.com> To: <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>, <mark.rutland@....com>, <alexander.shishkin@...ux.intel.com>, <jolsa@...hat.com>, <namhyung@...nel.org>, <linux-kernel@...r.kernel.org> CC: Shiyuan Hu <hushiyuan@...wei.com>, Hewenliang <hewenliang4@...wei.com> Subject: [PATCH] uprobe: switch to bitmap_zalloc() in __create_xol_area() Switch to bitmap_zalloc() to show clearly in __create_xol_area(). No functional change. Signed-off-by: Yunfeng Ye <yeyunfeng@...wei.com> --- kernel/events/uprobes.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index ece7e13f6e4a..1d3dde9101b0 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -1490,8 +1490,7 @@ static struct xol_area *__create_xol_area(unsigned long vaddr) if (unlikely(!area)) goto out; - area->bitmap = kcalloc(BITS_TO_LONGS(UINSNS_PER_PAGE), sizeof(long), - GFP_KERNEL); + area->bitmap = bitmap_zalloc(UINSNS_PER_PAGE, GFP_KERNEL); if (!area->bitmap) goto free_area; @@ -1515,7 +1514,7 @@ static struct xol_area *__create_xol_area(unsigned long vaddr) __free_page(area->pages[0]); free_bitmap: - kfree(area->bitmap); + bitmap_free(area->bitmap); free_area: kfree(area); out: @@ -1556,7 +1555,7 @@ void uprobe_clear_state(struct mm_struct *mm) return; put_page(area->pages[0]); - kfree(area->bitmap); + bitmap_free(area->bitmap); kfree(area); } -- 1.8.3.1
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