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From bbf92338e5e5eed796d511d2bd3c3686b7d1e5fd 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 19:01:46 +0100
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Subject: [PATCH 075/116] virtiofsd: passthrough_ll: disable readdirplus on
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cache=never
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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: <20200127190227.40942-72-dgilbert@redhat.com>
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Patchwork-id: 93525
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O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 071/112] virtiofsd: passthrough_ll: disable readdirplus on cache=never
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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: Miklos Szeredi <mszeredi@redhat.com>
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...because the attributes sent in the READDIRPLUS reply would be discarded
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anyway.
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Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
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Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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(cherry picked from commit ddcbabcb0ea177be3ec3500726b699c7c26ffd93)
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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 | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
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index 18d69ab..6480c51 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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@@ -478,6 +478,10 @@ static void lo_init(void *userdata, struct fuse_conn_info *conn)
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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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}
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+ if (lo->cache == CACHE_NEVER) {
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+ fuse_log(FUSE_LOG_DEBUG, "lo_init: disabling readdirplus\n");
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+ conn->want &= ~FUSE_CAP_READDIRPLUS;
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+ }
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}
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static void lo_getattr(fuse_req_t req, fuse_ino_t ino,
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--
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1.8.3.1
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