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From 9c1bbe327cf8f88ffc78eed0fce8cdd6f3f006ef Mon Sep 17 00:00:00 2001
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From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
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Date: Mon, 27 Jan 2020 19:00:54 +0100
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Subject: [PATCH 023/116] virtiofsd: Add options for virtio
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Message-id: <20200127190227.40942-20-dgilbert@redhat.com>
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Patchwork-id: 93473
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O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 019/112] virtiofsd: Add options for virtio
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Bugzilla: 1694164
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RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
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From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
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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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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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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 bae0699..26b1a7d 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 8552cfb..17e8718 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 9333691..676032e 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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-- 
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1.8.3.1
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