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virtiofsd: Add qemu version and copyright info

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Option "-V" currently displays the fuse protocol version virtiofsd is
using. For example, I see this.

$ ./virtiofsd -V
"using FUSE kernel interface version 7.33"

People also want to know software version of virtiofsd so that they can
figure out if a certain fix is part of currently running virtiofsd or
not. Eric Ernst ran into this issue.

David Gilbert thinks that it probably is best that we simply carry the
qemu version and display that information given we are part of qemu
tree.

So this patch enhances version information and also adds qemu version
and copyright info. Not sure if copyright information is supposed
to be displayed along with version info. Given qemu-storage-daemon
and other utilities are doing it, so I continued with same pattern.
This is how now output looks like.

$ ./virtiofsd -V
virtiofsd version 5.2.50 (v5.2.0-2357-gcbcf09872a-dirty)
Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers
using FUSE kernel interface version 7.33

Reported-by: Eric Ernst <eric.g.ernst@gmail.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Message-Id: <20210303195339.GB3793@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Vivek Goyal 2021-03-03 14:53:39 -05:00 committed by Dr. David Alan Gilbert
parent 5bb8327b65
commit 6d118c4349
1 changed files with 8 additions and 0 deletions
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8
tools/virtiofsd/passthrough_ll.c
View File

@ -37,6 +37,8 @@
#include "qemu/osdep.h"
#include "qemu/timer.h"
#include "qemu-version.h"
#include "qemu-common.h"
#include "fuse_virtio.h"
#include "fuse_log.h"
#include "fuse_lowlevel.h"
@ -3666,6 +3668,11 @@ static void fuse_lo_data_cleanup(struct lo_data *lo)
free(lo->source);
}
static void qemu_version(void)
{
printf("virtiofsd version " QEMU_FULL_VERSION "\n" QEMU_COPYRIGHT "\n");
}
int main(int argc, char *argv[])
{
struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
@ -3737,6 +3744,7 @@ int main(int argc, char *argv[])
ret = 0;
goto err_out1;
} else if (opts.show_version) {
qemu_version();
fuse_lowlevel_version();
ret = 0;
goto err_out1;