[v4] virtiofsd: Add support for FUSE_SYNCFS request

[PATCH v4 0/2] virtiofsd: Add support for FUSE_SYNCFS request

Greg Kurz posted 2 patches 2 years, 3 months ago

Diff against v1 v2 v3 v5 v6
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git fetch https://github.com/patchew-project/qemu tags/patchew/20220125141213.361930-1-groug@kaod.org

Maintainers: Stefan Hajnoczi <stefanha@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>

There is a newer version of this series

tools/virtiofsd/fuse_lowlevel.c       |  11 ++
tools/virtiofsd/fuse_lowlevel.h       |  13 +++
tools/virtiofsd/passthrough_ll.c      | 141 +++++++++++++++++++++++++-
tools/virtiofsd/passthrough_seccomp.c |   1 +
4 files changed, 163 insertions(+), 3 deletions(-)

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[PATCH v4 0/2] virtiofsd: Add support for FUSE_SYNCFS request

Posted by Greg Kurz 2 years, 3 months ago

FUSE_SYNCFS allows the client to flush the host page cache.

v4: - based on upstream linux FUSE_SYNCFS
    - added support for the '-o announce_submounts' case, i.e. client sends
      a FUSE_SYNCFS request for each submount (identified by its root inode)
    - adapted the case without '-o announce_submounts' so that syncfs() is
      no longer called with lo->mutex held

v3: - track submounts and do per-submount syncfs() (Vivek)
    - based on new version of FUSE_SYNCFS (still not upstream)
      https://listman.redhat.com/archives/virtio-fs/2021-May/msg00025.html

v2: - based on new version of FUSE_SYNCFS
      https://listman.redhat.com/archives/virtio-fs/2021-April/msg00166.html
    - propagate syncfs() errors to client (Vivek)

Greg Kurz (2):
  virtiofsd: Track mounts
  virtiofsd: Add support for FUSE_SYNCFS request

 tools/virtiofsd/fuse_lowlevel.c       |  11 ++
 tools/virtiofsd/fuse_lowlevel.h       |  13 +++
 tools/virtiofsd/passthrough_ll.c      | 141 +++++++++++++++++++++++++-
 tools/virtiofsd/passthrough_seccomp.c |   1 +
 4 files changed, 163 insertions(+), 3 deletions(-)

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2.34.1