[PATCH v3 1/2] fs: warn about impending deprecation of mandatory locks
From: Jeff Layton <jlayton@kernel.org>
Date: 2021-08-20 16:39:26
Also in:
linux-doc, linux-fsdevel, linux-mm, lkml, ocfs2-devel, stable
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
We've had CONFIG_MANDATORY_FILE_LOCKING since 2015 and a lot of distros have disabled it. Warn the stragglers that still use "-o mand" that we'll be dropping support for that mount option. Cc: stable@vger.kernel.org Signed-off-by: Jeff Layton <jlayton@kernel.org> --- fs/namespace.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index ab4174a3c802..2279473d0d6f 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c@@ -1716,8 +1716,12 @@ static inline bool may_mount(void) } #ifdef CONFIG_MANDATORY_FILE_LOCKING -static inline bool may_mandlock(void) +static bool may_mandlock(void) { + pr_warn_once("======================================================\n" + "WARNING: the mand mount option is being deprecated and\n" + " will be removed in v5.15!\n" + "======================================================\n"); return capable(CAP_SYS_ADMIN); } #else
--
2.31.1