linux-kernel - [PATCH v4 0/5] virtiofs: propagate sync() to file server

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Message-Id: <20210520154654.1791183-1-groug@kaod.org>
Date:   Thu, 20 May 2021 17:46:49 +0200
From:   Greg Kurz <groug@...d.org>
To:     Miklos Szeredi <miklos@...redi.hu>
Cc:     virtualization@...ts.linux-foundation.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        virtio-fs@...hat.com, Stefan Hajnoczi <stefanha@...hat.com>,
        Max Reitz <mreitz@...hat.com>, Vivek Goyal <vgoyal@...hat.com>,
        Greg Kurz <groug@...d.org>
Subject: [PATCH v4 0/5] virtiofs: propagate sync() to file server

This was a single patch until v3. Some preliminary cleanups were
introduced for submounts in this v4.

This can be tested with a custom virtiofsd implementing FUSE_SYNCFS, here:

https://gitlab.com/gkurz/qemu/-/tree/fuse-sync

v4: - submount fixes
    - set nodeid of the superblock in the request (Miklos)

v3: - just keep a 64-bit padding field in the arg struct (Vivek)

v2: - clarify compatibility with older servers in changelog (Vivek)
    - ignore the wait == 0 case (Miklos)
    - 64-bit aligned argument structure (Vivek, Miklos)

Greg Kurz (5):
  fuse: Fix leak in fuse_dentry_automount() error path
  fuse: Call vfs_get_tree() for submounts
  fuse: Make fuse_fill_super_submount() static
  virtiofs: Skip submounts in sget_fc()
  virtiofs: propagate sync() to file server

 fs/fuse/dir.c             | 45 +++++---------------
 fs/fuse/fuse_i.h          | 12 +++---
 fs/fuse/inode.c           | 87 ++++++++++++++++++++++++++++++++++++++-
 fs/fuse/virtio_fs.c       |  9 ++++
 include/uapi/linux/fuse.h | 10 ++++-
 5 files changed, 120 insertions(+), 43 deletions(-)

-- 
2.26.3