linux-kernel - [RESEND1, PATCH 0/2] fuse: allow filesystems to have precise control over data cache

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Date:   Wed, 27 Mar 2019 09:15:06 +0000
From:   Kirill Smelkov <kirr@...edi.com>
To:     Miklos Szeredi <miklos@...redi.hu>,
        Miklos Szeredi <mszeredi@...hat.com>
Cc:     Brian Foster <bfoster@...hat.com>,
        Maxim Patlasov <mpatlasov@...allels.com>,
        Anatol Pomozov <anatol.pomozov@...il.com>,
        Pavel Emelyanov <xemul@...nvz.org>,
        Andrew Gallagher <andrewjcg@...com>,
        "Anand V . Avati" <avati@...hat.com>,
        Alexey Kuznetsov <kuznet@...tuozzo.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Kirill Tkhai <ktkhai@...tuozzo.com>,
        Constantine Shulyupin <const@...eLinux.com>,
        Chad Austin <chadaustin@...com>,
        Dan Schatzberg <dschatzberg@...com>,
        <linux-fsdevel@...r.kernel.org>,
        <fuse-devel@...ts.sourceforge.net>, <linux-kernel@...r.kernel.org>,
        Han-Wen Nienhuys <hanwen@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Kirill Smelkov <kirr@...edi.com>
Subject: [RESEND1, PATCH 0/2] fuse: allow filesystems to have precise control over data cache

Miklos,

This is a resend of the patches that teach fs/fuse/ to give filesystems
full control over data cache if the filesystem server indicates to
kernel that it is fully responsible for data cache invalidation. This
functionality is essential when the data in cache are relatively big and
it is very desirable to avoid automatically clearing the data cache of
inode on file size change. The second patch of the series describes the
problem in details as well as the fix to it.

I send the change initially ~ 2 weeks ago

	https://lwn.net/ml/linux-fsdevel/20190315212556.9315-1-kirr@nexedi.com/

but had not heard from you at all. Could you please have a look?

Thanks beforehand,
Kirill

Kirill Smelkov (2):
  fuse: convert printk -> pr_*
  fuse: allow filesystems to have precise control over data cache

 fs/fuse/cuse.c            | 13 +++++++------
 fs/fuse/dev.c             |  4 ++--
 fs/fuse/fuse_i.h          |  7 +++++++
 fs/fuse/inode.c           | 18 +++++++++++++-----
 include/uapi/linux/fuse.h |  7 ++++++-
 5 files changed, 35 insertions(+), 14 deletions(-)

-- 
2.21.0.392.gf8f6787159