FUSE_SYNCFS allows the client to flush the host page cache.
v5: - split announce_submounts and ! announce_submounts to separate patches
for easier review (but could be squashed together)
- track submounts directly in lo_inode structure following the same
logic as FUSE_ATTR_SUBMOUNT (i.e. directory with either st_dev or
stx_mnt_id different from parent)
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 (3):
virtiofsd: Add support for FUSE_SYNCFS request with announce_submounts
virtiofsd: Track submounts
virtiofsd: Add support for FUSE_SYNCFS request without
announce_submounts
tools/virtiofsd/fuse_lowlevel.c | 11 ++++
tools/virtiofsd/fuse_lowlevel.h | 13 ++++
tools/virtiofsd/passthrough_ll.c | 93 +++++++++++++++++++++++++--
tools/virtiofsd/passthrough_seccomp.c | 1 +
4 files changed, 114 insertions(+), 4 deletions(-)
--
2.34.1
