From mboxrd@z Thu Jan 1 00:00:00 1970 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 578F0C433EF for ; Thu, 7 Apr 2022 15:27:08 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id DA62A6B0072; Thu, 7 Apr 2022 11:26:57 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D54816B0075; Thu, 7 Apr 2022 11:26:57 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BF6B96B0078; Thu, 7 Apr 2022 11:26:57 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0042.hostedemail.com [216.40.44.42]) by kanga.kvack.org (Postfix) with ESMTP id B30646B0072 for ; Thu, 7 Apr 2022 11:26:57 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 76E0E183E6C78 for ; 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bh=HY0WGnVyYhCp+LhKaKmQstubuC2NBeDsW4/sLmH6Z8c=; b=tIy2FgiTF5PZUTeuG9JADUiSC1+VAIkjbGxP/lEc71v2qsAsFxGTxeSFScU8FNeVlGcnPr Dj41KlwW0MN6N+Cg== Received: from ds.suse.cz (ds.suse.cz [10.100.12.205]) by relay2.suse.de (Postfix) with ESMTP id 5D6D3A3B9B; Thu, 7 Apr 2022 15:26:45 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 35565DA80E; Thu, 7 Apr 2022 17:22:43 +0200 (CEST) Date: Thu, 7 Apr 2022 17:22:43 +0200 From: David Sterba To: Christoph Hellwig Cc: Jens Axboe , 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 Subject: Re: [PATCH 23/27] block: add a bdev_max_discard_sectors helper Message-ID: <20220407152243.GK15609@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, Christoph Hellwig , Jens Axboe , 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 References: <20220406060516.409838-1-hch@lst.de> <20220406060516.409838-24-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220406060516.409838-24-hch@lst.de> User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) X-Stat-Signature: szozkuhh89awq636hu1fkk3k7pqjyzn4 Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=XoJXkAIg; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=tIy2FgiT; spf=pass (imf11.hostedemail.com: domain of dsterba@suse.cz designates 195.135.220.29 as permitted sender) smtp.mailfrom=dsterba@suse.cz; dmarc=none X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 9D6504000D X-HE-Tag: 1649345206-521005 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: On Wed, Apr 06, 2022 at 08:05:12AM +0200, Christoph Hellwig wrote: > Add a helper to query the number of sectors support per each discard bio > based on the block device and use this helper to stop various places from > poking into the request_queue to see if discard is supported and if so how > much. This mirrors what is done e.g. for write zeroes as well. > > Signed-off-by: Christoph Hellwig > --- > block/blk-core.c | 2 +- > block/blk-lib.c | 2 +- > block/ioctl.c | 3 +-- > drivers/block/drbd/drbd_main.c | 2 +- > drivers/block/drbd/drbd_nl.c | 12 +++++++----- > drivers/block/drbd/drbd_receiver.c | 5 ++--- > drivers/block/loop.c | 9 +++------ > drivers/block/rnbd/rnbd-srv-dev.h | 6 +----- > drivers/block/xen-blkback/xenbus.c | 2 +- > drivers/md/bcache/request.c | 4 ++-- > drivers/md/bcache/super.c | 2 +- > drivers/md/bcache/sysfs.c | 2 +- > drivers/md/dm-cache-target.c | 9 +-------- > drivers/md/dm-clone-target.c | 9 +-------- > drivers/md/dm-io.c | 2 +- > drivers/md/dm-log-writes.c | 3 +-- > drivers/md/dm-raid.c | 9 ++------- > drivers/md/dm-table.c | 4 +--- > drivers/md/dm-thin.c | 9 +-------- > drivers/md/dm.c | 2 +- > drivers/md/md-linear.c | 4 ++-- > drivers/md/raid0.c | 2 +- > drivers/md/raid1.c | 6 +++--- > drivers/md/raid10.c | 8 ++++---- > drivers/md/raid5-cache.c | 2 +- > drivers/target/target_core_device.c | 8 +++----- For > fs/btrfs/extent-tree.c | 4 ++-- > fs/btrfs/ioctl.c | 2 +- Acked-by: David Sterba