Setup mapping either read-only or read-write depending on what client has asked for. Also open file O_RDONLY for read-only mapping (and not O_RDWR). Otherwise files always get copied up on overlayfs.
Vivek Goyal (2): virtiofsd: During setup mapping, open file O_RDWR only if needed virtiofsd: No need to promote O_WRONLY to O_RDWR contrib/virtiofsd/fuse_lowlevel.c | 5 +++-- contrib/virtiofsd/passthrough_ll.c | 29 +++++++---------------------- 2 files changed, 10 insertions(+), 24 deletions(-) -- 2.17.2
