From 1bb43a5cdcb48dc9a8add0d1c94e627cd76f80f6 Mon Sep 17 00:00:00 2001
From: Sergio Lopez <slp@redhat.com>
Date: Tue, 22 Mar 2022 10:22:01 +0100
Subject: [PATCH] Clean up flags in opendir (downstream)

Clean up O_RDWR and O_WRONLY flags in opendir to work around a bug in
the Windows virtio-fs guest driver.

Resolves: rhbz#2057252
Signed-off-by: Sergio Lopez <slp@redhat.com>
---
 src/passthrough/mod.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/passthrough/mod.rs b/src/passthrough/mod.rs
index b2b265c..6e4b236 100644
--- a/src/passthrough/mod.rs
+++ b/src/passthrough/mod.rs
@@ -1133,7 +1133,10 @@ impl FileSystem for PassthroughFs {
         inode: Inode,
         flags: u32,
     ) -> io::Result<(Option<Handle>, OpenOptions)> {
-        self.do_open(inode, false, flags | (libc::O_DIRECTORY as u32))
+        // Clean up O_RDWR and O_WRONLY from flags to work around a bug in the Windows
+        // virtio-fs guest driver. BZ#2057252
+        let clean_flags: u32 = flags & !((libc::O_RDWR | libc::O_WRONLY) as u32);
+        self.do_open(inode, false, clean_flags | (libc::O_DIRECTORY as u32))
     }
 
     fn releasedir(
-- 
2.35.1