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Date: Tue, 16 May 2017 04:53:06 -0700 From: Christoph Hellwig <hch@...radead.org> To: Daeho Jeong <daeho.jeong@...sung.com> Cc: jack@...e.com, tytso@....edu, linux-ext4@...r.kernel.org, linux-block@...r.kernel.org Subject: Re: [PATCH] ext4: hand over jobs handling discard commands on commit complete phase to kworkers On Tue, May 16, 2017 at 04:37:42PM +0900, Daeho Jeong wrote: > Now, when we mount ext4 filesystem with '-o discard' option, we have to > issue all the discard commands for the blocks to be deallocated and > wait for the completion of the commands on the commit complete phase. No, you don't. You can execute them asynchronously, similar to what XFS already does.
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