From: Yang Shi <shy828301@gmail.com>
To: "Theodore Ts'o" <tytso@mit.edu>
Cc: Vlastimil Babka <vbabka@suse.cz>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Miaohe Lin <linmiaohe@huawei.com>,
Song Liu <songliubraving@fb.com>, Rik van Riel <riel@surriel.com>,
Matthew Wilcox <willy@infradead.org>, Zi Yan <ziy@nvidia.com>,
Andrew Morton <akpm@linux-foundation.org>,
Andreas Dilger <adilger.kernel@dilger.ca>,
darrick.wong@oracle.com, Linux MM <linux-mm@kvack.org>,
Linux FS-devel Mailing List <linux-fsdevel@vger.kernel.org>,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [v2 PATCH 0/8] Make khugepaged collapse readonly FS THP more consistent
Date: Wed, 23 Mar 2022 19:46:59 -0700 [thread overview]
Message-ID: <CAHbLzkqTeD_VB0znsBNt8HjjPceqU-uKh6TF3jNVVjZn4dbBLw@mail.gmail.com> (raw)
In-Reply-To: <YjvNzvdcagflTejJ@mit.edu>
On Wed, Mar 23, 2022 at 6:48 PM Theodore Ts'o <tytso@mit.edu> wrote:
>
> On Thu, Mar 17, 2022 at 04:48:19PM -0700, Yang Shi wrote:
> >
> > The patch 1 ~ 7 are minor bug fixes, clean up and preparation patches.
> > The patch 8 converts ext4 and xfs. We may need convert more filesystems,
> > but I'd like to hear some comments before doing that.
>
> Adding a hard-coded call to khugepage_enter_file() in ext4 and xfs,
> and potentially, each file system, seems kludgy as all heck. Is there
> any reason not to simply call it in the mm code which calls f_op->mmap()?
Thanks, Ted. Very good point. I just didn't think of it. I think it is
doable. We may be able to clean up the code further.
>
> - Ted
prev parent reply other threads:[~2022-03-24 2:47 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-17 23:48 [v2 PATCH 0/8] Make khugepaged collapse readonly FS THP more consistent Yang Shi
2022-03-17 23:48 ` [v2 PATCH 1/8] sched: coredump.h: clarify the use of MMF_VM_HUGEPAGE Yang Shi
2022-03-17 23:48 ` [v2 PATCH 2/8] mm: khugepaged: remove redundant check for VM_NO_KHUGEPAGED Yang Shi
2022-03-17 23:48 ` [v2 PATCH 3/8] mm: khugepaged: skip DAX vma Yang Shi
2022-03-21 12:04 ` Hyeonggon Yoo
2022-03-21 20:59 ` Yang Shi
2022-03-17 23:48 ` [v2 PATCH 4/8] mm: thp: only regular file could be THP eligible Yang Shi
2022-03-17 23:48 ` [v2 PATCH 5/8] mm: khugepaged: make khugepaged_enter() void function Yang Shi
2022-03-17 23:48 ` [v2 PATCH 6/8] mm: khugepaged: move some khugepaged_* functions to khugepaged.c Yang Shi
2022-03-17 23:48 ` [v2 PATCH 7/8] mm: khugepaged: introduce khugepaged_enter_file() helper Yang Shi
2022-03-17 23:48 ` [v2 PATCH 8/8] fs: register suitable readonly vmas for khugepaged Yang Shi
2022-03-18 1:10 ` [v2 PATCH 0/8] Make khugepaged collapse readonly FS THP more consistent Song Liu
2022-03-18 1:29 ` Dave Chinner
2022-03-18 3:38 ` Matthew Wilcox
2022-03-18 18:04 ` Yang Shi
2022-03-18 18:48 ` Matthew Wilcox
2022-03-18 20:19 ` Yang Shi
2022-03-18 17:31 ` Yang Shi
2022-03-24 1:47 ` Theodore Ts'o
2022-03-24 2:46 ` Yang Shi [this message]
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