From patchwork Mon Nov 22 03:02:55 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miao Xie X-Patchwork-Id: 346771 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id oAM34UPL004703 for ; Mon, 22 Nov 2010 03:04:30 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756476Ab0KVDE0 (ORCPT ); Sun, 21 Nov 2010 22:04:26 -0500 Received: from cn.fujitsu.com ([222.73.24.84]:62734 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1756342Ab0KVDEY (ORCPT ); Sun, 21 Nov 2010 22:04:24 -0500 Received: from tang.cn.fujitsu.com (tang.cn.fujitsu.com [10.167.250.3]) by song.cn.fujitsu.com (Postfix) with ESMTP id EF714170D21; Mon, 22 Nov 2010 11:04:21 +0800 (CST) Received: from mailserver.fnst.cn.fujitus.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id oAM2xqw9003640; Mon, 22 Nov 2010 10:59:52 +0800 Received: from [10.167.225.64] ([10.167.225.64]) by mailserver.fnst.cn.fujitus.com (Lotus Domino Release 8.5.1FP4) with ESMTP id 2010112211044050-73804 ; Mon, 22 Nov 2010 11:04:40 +0800 Message-ID: <4CE9DD5F.1000302@cn.fujitsu.com> Date: Mon, 22 Nov 2010 11:02:55 +0800 From: Miao Xie Reply-To: miaox@cn.fujitsu.com User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100413 Fedora/3.0.4-2.fc13 Thunderbird/3.0.4 MIME-Version: 1.0 To: Josef Bacik , Chris Mason CC: Linux Btrfs , Ito Subject: [PATCH -V2 2/3] btrfs: cleanup similar source code X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2010-11-22 11:04:40, Serialize by Router on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2010-11-22 11:04:40, Serialize complete at 2010-11-22 11:04:40 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Mon, 22 Nov 2010 03:04:30 +0000 (UTC) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 7845d1f..b50bc4b 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -91,23 +91,10 @@ static inline int compressed_bio_size(struct btrfs_root *root, static struct bio *compressed_bio_alloc(struct block_device *bdev, u64 first_byte, gfp_t gfp_flags) { - struct bio *bio; int nr_vecs; nr_vecs = bio_get_nr_vecs(bdev); - bio = bio_alloc(gfp_flags, nr_vecs); - - if (bio == NULL && (current->flags & PF_MEMALLOC)) { - while (!bio && (nr_vecs /= 2)) - bio = bio_alloc(gfp_flags, nr_vecs); - } - - if (bio) { - bio->bi_size = 0; - bio->bi_bdev = bdev; - bio->bi_sector = first_byte >> 9; - } - return bio; + return btrfs_bio_alloc(bdev, first_byte >> 9, nr_vecs, gfp_flags); } static int check_compressed_csum(struct inode *inode, diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index eac10e3..b6543d7 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -1828,9 +1828,9 @@ static void end_bio_extent_preparewrite(struct bio *bio, int err) bio_put(bio); } -static struct bio * -extent_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs, - gfp_t gfp_flags) +struct bio * +btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs, + gfp_t gfp_flags) { struct bio *bio; @@ -1919,7 +1919,7 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree, else nr = bio_get_nr_vecs(bdev); - bio = extent_bio_alloc(bdev, sector, nr, GFP_NOFS | __GFP_HIGH); + bio = btrfs_bio_alloc(bdev, sector, nr, GFP_NOFS | __GFP_HIGH); bio_add_page(bio, page, page_size, offset); bio->bi_end_io = end_io_func; diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 1c6d4f3..4183c81 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -310,4 +310,7 @@ int extent_clear_unlock_delalloc(struct inode *inode, struct extent_io_tree *tree, u64 start, u64 end, struct page *locked_page, unsigned long op); +struct bio * +btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs, + gfp_t gfp_flags); #endif