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From 8e6473e906dfc7d2a62abaf1ec80ff461e4d201d 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 19:02:12 +0100
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Subject: [PATCH 101/116] virtiofsd: do not always set FUSE_FLOCK_LOCKS
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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: <20200127190227.40942-98-dgilbert@redhat.com>
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Patchwork-id: 93551
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O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 097/112] virtiofsd: do not always set FUSE_FLOCK_LOCKS
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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: Peng Tao <tao.peng@linux.alibaba.com>
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Right now we always enable it regardless of given commandlines.
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Fix it by setting the flag relying on the lo->flock bit.
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Signed-off-by: Peng Tao <tao.peng@linux.alibaba.com>
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Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
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Reviewed-by: Sergio Lopez <slp@redhat.com>
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Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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(cherry picked from commit e468d4af5f5192ab33283464a9f6933044ce47f7)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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tools/virtiofsd/passthrough_ll.c | 11 ++++++++---
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1 file changed, 8 insertions(+), 3 deletions(-)
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diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
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index ab16135..ccbbec1 100644
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--- a/tools/virtiofsd/passthrough_ll.c
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+++ b/tools/virtiofsd/passthrough_ll.c
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@@ -546,9 +546,14 @@ static void lo_init(void *userdata, struct fuse_conn_info *conn)
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fuse_log(FUSE_LOG_DEBUG, "lo_init: activating writeback\n");
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conn->want |= FUSE_CAP_WRITEBACK_CACHE;
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}
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- if (lo->flock && conn->capable & FUSE_CAP_FLOCK_LOCKS) {
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- fuse_log(FUSE_LOG_DEBUG, "lo_init: activating flock locks\n");
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- conn->want |= FUSE_CAP_FLOCK_LOCKS;
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+ if (conn->capable & FUSE_CAP_FLOCK_LOCKS) {
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+ if (lo->flock) {
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+ fuse_log(FUSE_LOG_DEBUG, "lo_init: activating flock locks\n");
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+ conn->want |= FUSE_CAP_FLOCK_LOCKS;
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+ } else {
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+ fuse_log(FUSE_LOG_DEBUG, "lo_init: disabling flock locks\n");
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+ conn->want &= ~FUSE_CAP_FLOCK_LOCKS;
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+ }
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}
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if (conn->capable & FUSE_CAP_POSIX_LOCKS) {
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--
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1.8.3.1
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