From patchwork Sat Apr 9 04:50:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12807438 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A9E3C433F5 for ; Sat, 9 Apr 2022 04:52:06 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 10AC18D000D; Sat, 9 Apr 2022 00:52:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 0BAEA8D0006; Sat, 9 Apr 2022 00:52:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EC4CC8D000D; Sat, 9 Apr 2022 00:52:05 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.a.hostedemail.com [64.99.140.24]) by kanga.kvack.org (Postfix) with ESMTP id DE4958D0006 for ; Sat, 9 Apr 2022 00:52:05 -0400 (EDT) Received: from smtpin19.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay13.hostedemail.com (Postfix) with ESMTP id BBBF86148F for ; Sat, 9 Apr 2022 04:52:05 +0000 (UTC) X-FDA: 79336118610.19.9CC7B35 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf20.hostedemail.com (Postfix) with ESMTP id 4E0181C0004 for ; Sat, 9 Apr 2022 04:52:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=2RG8/4DncVNJBVxiwRZlDWFw3of1TwdfVdHLgkB+Spw=; b=bHToJbTwXX9JeK0n0FFEHck7oK nA96qn4tsO9VvTxVN8oChK/ZngVrRM/0RF6G9ra3tv3c4LiSpAW93VdnTUb837bG7nj26lWP035AX +oB1LRxVd3o4RNZBzKIPVYYv/AqgqQH13jSTRjPJXLj+fHe3sQ7lQiOs0AqFOPiV0QvmbZSG1K8qh 9AilEZ6nzAlZEnIp9Du8I20RfuJmhuvcocvyHX9G65n9qxdF8wS5MzRNFD9kn7Nula/Xd3cMLnifm ikockttcbAn2ou+cROly75gq/5PqLm1F2FPp9pVf438qn2667h4Aje3z8zrXhBCgwdMkGUyOJsCBu B0U5qlrw==; Received: from 213-147-167-116.nat.highway.webapn.at ([213.147.167.116] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nd34Q-0020zD-BL; Sat, 09 Apr 2022 04:51:34 +0000 From: Christoph Hellwig To: Jens Axboe Cc: dm-devel@redhat.com, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-um@lists.infradead.org, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, ceph-devel@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ntfs3@lists.linux.dev, ocfs2-devel@oss.oracle.com, linux-mm@kvack.org, "Martin K . Petersen" Subject: [PATCH 14/27] block: add a bdev_stable_writes helper Date: Sat, 9 Apr 2022 06:50:30 +0200 Message-Id: <20220409045043.23593-15-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220409045043.23593-1-hch@lst.de> References: <20220409045043.23593-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 4E0181C0004 X-Rspam-User: Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=bHToJbTw; dmarc=none; spf=none (imf20.hostedemail.com: domain of BATV+43fc5532e856fea764d1+6803+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+43fc5532e856fea764d1+6803+infradead.org+hch@bombadil.srs.infradead.org X-Stat-Signature: 8w5wxssczp84tctkodsaf9hexzyw8np5 X-HE-Tag: 1649479925-960612 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Add a helper to check the stable writes flag based on the block_device instead of having to poke into the block layer internal request_queue. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen --- drivers/md/dm-table.c | 4 +--- fs/super.c | 2 +- include/linux/blkdev.h | 6 ++++++ mm/swapfile.c | 2 +- 4 files changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 5e38d0dd009d5..d46839faa0ca5 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1950,9 +1950,7 @@ static int device_requires_stable_pages(struct dm_target *ti, struct dm_dev *dev, sector_t start, sector_t len, void *data) { - struct request_queue *q = bdev_get_queue(dev->bdev); - - return blk_queue_stable_writes(q); + return bdev_stable_writes(dev->bdev); } int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, diff --git a/fs/super.c b/fs/super.c index f1d4a193602d6..60f57c7bc0a69 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1204,7 +1204,7 @@ static int set_bdev_super(struct super_block *s, void *data) s->s_dev = s->s_bdev->bd_dev; s->s_bdi = bdi_get(s->s_bdev->bd_disk->bdi); - if (blk_queue_stable_writes(s->s_bdev->bd_disk->queue)) + if (bdev_stable_writes(s->s_bdev)) s->s_iflags |= SB_I_STABLE_WRITES; return 0; } diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 075b16d4560e7..a433798c3343e 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1330,6 +1330,12 @@ static inline bool bdev_nonrot(struct block_device *bdev) return blk_queue_nonrot(bdev_get_queue(bdev)); } +static inline bool bdev_stable_writes(struct block_device *bdev) +{ + return test_bit(QUEUE_FLAG_STABLE_WRITES, + &bdev_get_queue(bdev)->queue_flags); +} + static inline bool bdev_write_cache(struct block_device *bdev) { return test_bit(QUEUE_FLAG_WC, &bdev_get_queue(bdev)->queue_flags); diff --git a/mm/swapfile.c b/mm/swapfile.c index d5ab7ec4d92ca..4069f17a82c8e 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -3065,7 +3065,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) goto bad_swap_unlock_inode; } - if (p->bdev && blk_queue_stable_writes(p->bdev->bd_disk->queue)) + if (p->bdev && bdev_stable_writes(p->bdev)) p->flags |= SWP_STABLE_WRITES; if (p->bdev && p->bdev->bd_disk->fops->rw_page)