[PATCH v2 7/8] Set SB_POSIXACL if the server supports the extension

[rick.macklem@gmail.com]

From: Rick Macklem <rmacklem@uoguelph.ca>

Check to see if both the POSIX draft default ACL and
POSIX draft access ACL are supported by the server.
If so, set SB_POSIXACL.

Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
---
 fs/nfs/super.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 57d372db03b9..04c40c9d783a 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1352,6 +1352,13 @@ int nfs_get_tree_common(struct fs_context *fc)
 		goto error_splat_super;
 	}
 
+#ifdef CONFIG_NFS_V4_2
+	/* Set SB_POSIXACL if the server supports the NFSv4.2 extension. */
+	if ((server->attr_bitmask[2] & FATTR4_WORD2_POSIX_DEFAULT_ACL) &&
+	    (server->attr_bitmask[2] & FATTR4_WORD2_POSIX_ACCESS_ACL))
+		s->s_flags |= SB_POSIXACL;
+#endif
+
 	s->s_flags |= SB_ACTIVE;
 	error = 0;
 
-- 
2.49.0