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From: "Alex Zhu (Kernel)" <alexlzhu@fb.com>
To: "dsterba@suse.cz" <dsterba@suse.cz>
Cc: Kernel Team <Kernel-team@fb.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	Chris Mason <clm@fb.com>,
	"josef@toxicpanda.com" <josef@toxicpanda.com>,
	"dsterba@suse.com" <dsterba@suse.com>,
	"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] mm: fix alginment of VMA for memory mapped files on THP
Date: Tue, 2 Aug 2022 19:36:36 +0000	[thread overview]
Message-ID: <B3F0EB2C-AC3E-4DD5-8D0D-91BC8DE9F5D0@fb.com> (raw)
In-Reply-To: <20220802180602.GX13489@twin.jikos.cz>


> Commit dbe6ec815641 ("ext2/4, xfs: call thp_get_unmapped_area() for pmd
> mappings") adds the callback for DAX, that btrfs does not support so it
> was left out.

Commit 1854bc6e2420 ("mm/readahead: Align file mappings for non-DAX”) removed the DAX requirement. 
We should now be able to call thp_get_unmapped_area() for btrfs.

I’ll send out a v3 with the subject and sign off corrected. Thanks! 


      reply	other threads:[~2022-08-02 19:36 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-01 18:47 alexlzhu
2022-08-02 18:06 ` David Sterba
2022-08-02 19:36   ` Alex Zhu (Kernel) [this message]

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