[Virtio-fs] [PATCH 1/3] virtiofsd: add some options to the help message

[Masayoshi Mizuma <msys.mizuma@gmail.com>]

From: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>

Add following options to the help message:
- cache
- flock|no_flock
- norace
- posix_lock|no_posix_lock
- readdirplus|no_readdirplus
- timeout
- writeback|no_writeback
- xattr|no_xattr

Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
---
 tools/virtiofsd/helper.c | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/tools/virtiofsd/helper.c b/tools/virtiofsd/helper.c
index bcb8c05063..339d806e7c 100644
--- a/tools/virtiofsd/helper.c
+++ b/tools/virtiofsd/helper.c
@@ -147,15 +147,35 @@ void fuse_cmdline_help(void)
            "    -f                         foreground operation\n"
            "    --daemonize                run in background\n"
            "    -s                         disable multi-threaded operation\n"
+           "    -o cache=<mode>            cache mode. could be one of \"auto, "
+           "always, none\"\n"
+           "                               default: auto\n"
            "    -o clone_fd                use separate fuse device fd for "
            "each thread\n"
            "                               (may improve performance)\n"
+           "    -o flock|no_flock          enable/disable flock\n"
+           "                               default: no_flock\n"
+           "    -o log_level=<level>       log level, default to \"info\"\n"
+           "                               level could be one of \"debug, "
+           "info, warn, err\"\n"
            "    -o max_idle_threads        the maximum number of idle worker "
            "threads\n"
            "                               allowed (default: 10)\n"
-           "    -o log_level=<level>       log level, default to \"info\"\n"
-           "                               level could be one of \"debug, "
-           "info, warn, err\"\n");
+           "    -o norace                  disable racy fallback\n"
+           "                               default: false\n"
+           "    -o posix_lock|no_posix_lock\n"
+           "                               enable/disable remote posix lock\n"
+           "                               default: posix_lock\n"
+           "    -o readdirplus|no_readdirplus\n"
+           "                               enable/disable readirplus\n"
+           "                               default: readdirplus\n"
+           "    -o timeout=<number>        I/O timeout (second)\n"
+           "                               default: depends on cache= option.\n"
+           "    -o writeback|no_writeback  enable/disable writeback cache\n"
+           "                               default: no_writeback\n"
+           "    -o xattr|no_xattr          enable/disable xattr\n"
+           "                               default: no_xattr\n"
+           );
 }
 
 static int fuse_helper_opt_proc(void *data, const char *arg, int key,
-- 
2.18.1