[PULL,070/111] virtiofsd: passthrough_ll: disable readdirplus on cache=never
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Message ID 20200123115841.138849-71-dgilbert@redhat.com
State New
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Series
  • virtiofs queue
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Commit Message

Dr. David Alan Gilbert Jan. 23, 2020, 11:58 a.m. UTC
From: Miklos Szeredi <mszeredi@redhat.com>

...because the attributes sent in the READDIRPLUS reply would be discarded
anyway.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 tools/virtiofsd/passthrough_ll.c | 4 ++++
 1 file changed, 4 insertions(+)

Patch
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diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
index 18d69abcbc..6480c517dc 100644
--- a/tools/virtiofsd/passthrough_ll.c
+++ b/tools/virtiofsd/passthrough_ll.c
@@ -478,6 +478,10 @@  static void lo_init(void *userdata, struct fuse_conn_info *conn)
         fuse_log(FUSE_LOG_DEBUG, "lo_init: activating flock locks\n");
         conn->want |= FUSE_CAP_FLOCK_LOCKS;
     }
+    if (lo->cache == CACHE_NEVER) {
+        fuse_log(FUSE_LOG_DEBUG, "lo_init: disabling readdirplus\n");
+        conn->want &= ~FUSE_CAP_READDIRPLUS;
+    }
 }
 
 static void lo_getattr(fuse_req_t req, fuse_ino_t ino,