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From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
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Date: Mon, 27 Jan 2020 19:00:54 +0000
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Subject: [PATCH] virtiofsd: Add options for virtio
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Add options to specify parameters for virtio-fs paths, i.e.
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./virtiofsd -o vhost_user_socket=/tmp/vhostqemu
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Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
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Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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(cherry picked from commit 205de006aab8dcbe546a7e3a51d295c2d05e654b)
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---
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tools/virtiofsd/fuse_i.h | 1 +
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tools/virtiofsd/fuse_lowlevel.c | 11 ++++++++---
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tools/virtiofsd/helper.c | 14 +++++++-------
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3 files changed, 16 insertions(+), 10 deletions(-)
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diff --git a/tools/virtiofsd/fuse_i.h b/tools/virtiofsd/fuse_i.h
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index bae06992e0..26b1a7da88 100644
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--- a/tools/virtiofsd/fuse_i.h
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+++ b/tools/virtiofsd/fuse_i.h
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@@ -63,6 +63,7 @@ struct fuse_session {
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struct fuse_notify_req notify_list;
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size_t bufsize;
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int error;
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+ char *vu_socket_path;
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};
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struct fuse_chan {
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diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c
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index 8552cfb8af..17e8718283 100644
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--- a/tools/virtiofsd/fuse_lowlevel.c
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+++ b/tools/virtiofsd/fuse_lowlevel.c
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@@ -2115,8 +2115,11 @@ reply_err:
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}
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static const struct fuse_opt fuse_ll_opts[] = {
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- LL_OPTION("debug", debug, 1), LL_OPTION("-d", debug, 1),
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- LL_OPTION("--debug", debug, 1), LL_OPTION("allow_root", deny_others, 1),
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+ LL_OPTION("debug", debug, 1),
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+ LL_OPTION("-d", debug, 1),
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+ LL_OPTION("--debug", debug, 1),
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+ LL_OPTION("allow_root", deny_others, 1),
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+ LL_OPTION("--socket-path=%s", vu_socket_path, 0),
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FUSE_OPT_END
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};
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@@ -2132,7 +2135,9 @@ void fuse_lowlevel_help(void)
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* These are not all options, but the ones that are
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* potentially of interest to an end-user
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*/
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- printf(" -o allow_root allow access by root\n");
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+ printf(
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+ " -o allow_root allow access by root\n"
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+ " --socket-path=PATH path for the vhost-user socket\n");
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}
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void fuse_session_destroy(struct fuse_session *se)
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diff --git a/tools/virtiofsd/helper.c b/tools/virtiofsd/helper.c
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index 9333691525..676032e71f 100644
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--- a/tools/virtiofsd/helper.c
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+++ b/tools/virtiofsd/helper.c
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@@ -127,13 +127,13 @@ static const struct fuse_opt conn_info_opt_spec[] = {
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void fuse_cmdline_help(void)
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{
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- printf(
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- " -h --help print help\n"
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- " -V --version print version\n"
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- " -d -o debug enable debug output (implies -f)\n"
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- " -f foreground operation\n"
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- " -o max_idle_threads the maximum number of idle worker threads\n"
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- " allowed (default: 10)\n");
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+ printf(" -h --help print help\n"
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+ " -V --version print version\n"
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+ " -d -o debug enable debug output (implies -f)\n"
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+ " -f foreground operation\n"
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+ " -o max_idle_threads the maximum number of idle worker "
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+ "threads\n"
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+ " allowed (default: 10)\n");
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}
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static int fuse_helper_opt_proc(void *data, const char *arg, int key,
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