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

[Greg Kurz]

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(-)

-- 
2.34.1