fs/9p: translate O_TRUNC into OTRUNC

[ Upstream commit 87de39e70503e04ddb58965520b15eb9efa7eef3 ]

This one hits both 9P2000 and .u as it appears v9fs has never translated
the O_TRUNC flag.

Signed-off-by: Joakim Sindholt <opensource@zhasha.com>
Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 75907f77f9e38de11c141419c3503fa70fe5c49f..ef103ef392ee3ae1457153a2bfb81e9f9d43968a 100644 (file)
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -178,6 +178,9 @@ int v9fs_uflags2omode(int uflags, int extended)
                break;
        }
 
+       if (uflags & O_TRUNC)
+               ret |= P9_OTRUNC;
+
        if (extended) {
                if (uflags & O_EXCL)
                        ret |= P9_OEXCL;