From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50800) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W2lW5-0002mS-D7 for qemu-devel@nongnu.org; Mon, 13 Jan 2014 12:41:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W2lVz-00073h-6y for qemu-devel@nongnu.org; Mon, 13 Jan 2014 12:41:37 -0500 Received: from mx1.redhat.com ([209.132.183.28]:57762) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W2lVy-00073a-Uz for qemu-devel@nongnu.org; Mon, 13 Jan 2014 12:41:31 -0500 From: Juan Quintela Date: Mon, 13 Jan 2014 18:40:23 +0100 Message-Id: <1389634834-24181-39-git-send-email-quintela@redhat.com> In-Reply-To: <1389634834-24181-1-git-send-email-quintela@redhat.com> References: <1389634834-24181-1-git-send-email-quintela@redhat.com> Subject: [Qemu-devel] [PATCH 38/49] memory: cpu_physical_memory_clear_dirty_range() now uses bitmap operations List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: anthony@codemonkey.ws We were clearing a range of bits, so use bitmap_clear(). Signed-off-by: Juan Quintela Reviewed-by: Eric Blake Reviewed-by: Orit Wasserman --- include/exec/memory-internal.h | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/include/exec/memory-internal.h b/include/exec/memory-internal.h index 4906cdf..e2f55ea 100644 --- a/include/exec/memory-internal.h +++ b/include/exec/memory-internal.h @@ -95,14 +95,12 @@ static inline void cpu_physical_memory_clear_dirty_range(ram_addr_t start, ram_addr_t length, unsigned client) { - ram_addr_t addr, end; + unsigned long end, page; assert(client < DIRTY_MEMORY_NUM); - end = TARGET_PAGE_ALIGN(start + length); - start &= TARGET_PAGE_MASK; - for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) { - clear_bit(addr >> TARGET_PAGE_BITS, ram_list.dirty_memory[client]); - } + end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS; + page = start >> TARGET_PAGE_BITS; + bitmap_clear(ram_list.dirty_memory[client], page, end - page); } void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, -- 1.8.4.2