Re: [PATCH] x86/sys_x86_64: fix VMA alginment for mmap file to THP

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To: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Subject: Re: [PATCH] x86/sys_x86_64: fix VMA alginment for mmap file to THP
From: "Alex Zhu (Kernel)" <alexlzhu@xxxxxx>
Date: Mon, 1 Aug 2022 22:21:14 +0000
Accept-language: en-US
Cc: "linux-mm@xxxxxxxxx" <linux-mm@xxxxxxxxx>, Kernel Team <Kernel-team@xxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>
In-reply-to: <YuQ5FYWMXLw+LpVA@casper.infradead.org>
References: <20220729194214.1309313-1-alexlzhu@fb.com> <YuQ5FYWMXLw+LpVA@casper.infradead.org>

Hi Matthew,

Thanks for your suggestion. I tested thp_get_unmapped_area on btrfs and that does indeed solve the issue. Have posted a v2 including the btrfs maintainers. 

Thanks!
Alex

References:
- Re: [PATCH] x86/sys_x86_64: fix VMA alginment for mmap file to THP
  - From: Matthew Wilcox

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