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Date: Tue, 25 Oct 2022 15:57:16 +0000 From: Liam Howlett <liam.howlett@...cle.com> To: "J. R. Okajima" <hooanon05g@...il.com> CC: "yang.lee@...ux.alibaba.com" <yang.lee@...ux.alibaba.com>, "yuzhao@...gle.com" <yuzhao@...gle.com>, "catalin.marinas@....com" <catalin.marinas@....com>, "david@...hat.com" <david@...hat.com>, "dhowells@...hat.com" <dhowells@...hat.com>, "dave@...olabs.net" <dave@...olabs.net>, "willy@...radead.org" <willy@...radead.org>, "sj@...nel.org" <sj@...nel.org>, "svens@...ux.ibm.com" <svens@...ux.ibm.com>, "vbabka@...e.cz" <vbabka@...e.cz>, "will@...nel.org" <will@...nel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: v6.1-rc1, remap_file_pages() and vma linked list? * J. R. Okajima <hooanon05g@...il.com> [221025 03:09]: > Hello, > > Linux-v4.10 has a commit > 48f7df329474 2016-02-18 mm: fix regression in remap_file_pages() emulation > and it contains a small test program where remap_file_pages() will split > a region into two VMAs. > > Linux-v6.1-rc1 remap_file_pages() doesn't pass that old test. I broke this in the commit you reference below. > I tried investigation, but I am not good in this tech field. I could > only find there may be related to the commit > 763ecb035029 2022-09-26 mm: remove the vma linked list > but I am not sure. > How can we make the old test pass? > "Don't use remap_file_pages()" or "Ignore such old test" is not an > option. Thanks for reporting this issue. I have a fix that will be sent out shortly. Regards, Liam
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