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Message-ID: <20220410062620.GA16234@lst.de> Date: Sun, 10 Apr 2022 08:26:20 +0200 From: Christoph Hellwig <hch@....de> To: Christoph Böhmwalder <christoph.boehmwalder@...bit.com> Cc: Christoph Hellwig <hch@....de>, dm-devel@...hat.com, linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org, linux-um@...ts.infradead.org, linux-block@...r.kernel.org, drbd-dev@...ts.linbit.com, nbd@...er.debian.org, ceph-devel@...r.kernel.org, virtualization@...ts.linux-foundation.org, xen-devel@...ts.xenproject.org, Jens Axboe <axboe@...nel.dk>, linux-bcache@...r.kernel.org, linux-raid@...r.kernel.org, linux-mmc@...r.kernel.org, linux-mtd@...ts.infradead.org, linux-nvme@...ts.infradead.org, linux-s390@...r.kernel.org, linux-scsi@...r.kernel.org, target-devel@...r.kernel.org, linux-btrfs@...r.kernel.org, linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, cluster-devel@...hat.com, jfs-discussion@...ts.sourceforge.net, linux-nilfs@...r.kernel.org, ntfs3@...ts.linux.dev, ocfs2-devel@....oracle.com, linux-mm@...ck.org, "Martin K . Petersen" <martin.petersen@...cle.com>, Coly Li <colyli@...e.de> Subject: Re: [PATCH 24/27] block: remove QUEUE_FLAG_DISCARD On Sat, Apr 09, 2022 at 10:15:33AM +0200, Christoph Böhmwalder wrote: > On 09.04.22 06:50, Christoph Hellwig wrote: >> Just use a non-zero max_discard_sectors as an indicator for discard >> support, similar to what is done for write zeroes. >> >> The only places where needs special attention is the RAID5 driver, >> which must clear discard support for security reasons by default, >> even if the default stacking rules would allow for it. >> >> Signed-off-by: Christoph Hellwig <hch@....de> >> Reviewed-by: Martin K. Petersen <martin.petersen@...cle.com> >> Acked-by: Christoph Böhmwalder <christoph.boehmwalder@...bit.com> [btrfs] > > I think you may have a typo there: my ACK was for drbd, not btrfs. Indeed, sorry.
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