qemu/tools/virtiofsd
Vivek Goyal 65da453980 virtiofsd: Reset O_DIRECT flag during file open
If an application wants to do direct IO and opens a file with O_DIRECT
in guest, that does not necessarily mean that we need to bypass page
cache on host as well. So reset this flag on host.

If somebody needs to bypass page cache on host as well (and it is safe to
do so), we can add a knob in daemon later to control this behavior.

I check virtio-9p and they do reset O_DIRECT flag.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23 16:41:37 +00:00
..
50-qemu-virtiofsd.json.in virtiofsd: add vhost-user.json file 2020-01-23 16:41:36 +00:00
buffer.c virtiofsd: add fuse_mbuf_iter API 2020-01-23 16:41:36 +00:00
fuse_common.h virtiofsd: Parse flag FUSE_WRITE_KILL_PRIV 2020-01-23 16:41:37 +00:00
fuse_i.h virtiofsd: Plumb fuse_bufvec through to do_write_buf 2020-01-23 16:41:36 +00:00
fuse_log.c virtiofsd: Fix common header and define for QEMU builds 2020-01-23 16:41:36 +00:00
fuse_log.h virtiofsd: Format imported files to qemu style 2020-01-23 16:41:36 +00:00
fuse_lowlevel.c virtiofsd: use fuse_lowlevel_is_virtio() in fuse_session_destroy() 2020-01-23 16:41:37 +00:00
fuse_lowlevel.h virtiofsd: print log only when priority is high enough 2020-01-23 16:41:37 +00:00
fuse_misc.h virtiofsd: support nanosecond resolution for file timestamp 2020-01-23 16:41:37 +00:00
fuse_opt.c virtiofsd: Fix common header and define for QEMU builds 2020-01-23 16:41:36 +00:00
fuse_opt.h virtiofsd: Format imported files to qemu style 2020-01-23 16:41:36 +00:00
fuse_signals.c virtiofsd: convert more fprintf and perror to use fuse log infra 2020-01-23 16:41:37 +00:00
fuse_virtio.c virtiofsd: prevent fv_queue_thread() vs virtio_loop() races 2020-01-23 16:41:37 +00:00
fuse_virtio.h virtiofsd: cleanup allocated resource in se 2020-01-23 16:41:37 +00:00
fuse.h virtiofsd: Format imported files to qemu style 2020-01-23 16:41:36 +00:00
helper.c virtiofsd: convert more fprintf and perror to use fuse log infra 2020-01-23 16:41:37 +00:00
Makefile.objs virtiofsd: add seccomp whitelist 2020-01-23 16:41:37 +00:00
passthrough_helpers.h virtiofsd: Format imported files to qemu style 2020-01-23 16:41:36 +00:00
passthrough_ll.c virtiofsd: Reset O_DIRECT flag during file open 2020-01-23 16:41:37 +00:00
seccomp.c virtiofsd: add --syslog command-line option 2020-01-23 16:41:37 +00:00
seccomp.h virtiofsd: add --syslog command-line option 2020-01-23 16:41:37 +00:00