Messages in this thread | | | Date | Wed, 20 Apr 2022 11:12:00 -0700 | From | Jaegeuk Kim <> | Subject | Re: [PATCH] f2fs: use flush command instead of FUA for zoned device |
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On 04/19, Christoph Hellwig wrote: > On Tue, Apr 19, 2022 at 02:57:03PM -0700, Jaegeuk Kim wrote: > > The block layer for zoned disk can reorder the FUA'ed IOs. Let's use flush > > command to keep the write order. > > The block layer can reorder all commands. Given that FUA only affects > the command itself that should not matter. What is this trying to fix?
Not for zoned disk, as I mentioned. The mq-deadline serializes write commands but I got an reordered command, if there's a FUA|PREFLUSH command, which emits EIO by the disk.
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