Revert "nfs: ignore SB_RDONLY when mounting nfs"

[ Upstream commit d4a26d34f1946142f9d32e540490e4926ae9a46b ]

This reverts commit 52cb7f8f177878b4f22397b9c4d2c8f743766be3.

Silently ignoring the "ro" and "rw" mount options causes user confusion,
and regressions.

Reported-by: Alkis Georgopoulos<alkisg@gmail.com>
Cc: Li Lingfeng <lilingfeng3@huawei.com>
Fixes: 52cb7f8f1778 ("nfs: ignore SB_RDONLY when mounting nfs")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 00066057b1415c9282fbe202c32eb82d8c94cfa5..fc0a34e4886175e4c0844bdb182a7bff2ad1ad76 100644 (file)
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -11,7 +11,7 @@
 #include <linux/nfs_page.h>
 #include <linux/wait_bit.h>
 
-#define NFS_SB_MASK (SB_NOSUID|SB_NODEV|SB_NOEXEC|SB_SYNCHRONOUS)
+#define NFS_SB_MASK (SB_RDONLY|SB_NOSUID|SB_NODEV|SB_NOEXEC|SB_SYNCHRONOUS)
 
 extern const struct export_operations nfs_export_ops;