[PATCH v2 1/2] fs: warn about impending deprecation of mandatory locks
flat view
STALE1879d
SUPERSEDED
From: Jeff Layton <jlayton@kernel.org>
Date: 2021-08-20 13:57:14
Also in:
linux-doc, linux-fsdevel, linux-nfs, lkml, ocfs2-devel, stable
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
Revision v2 of 2 in this series.
Revisions (2)
- v2 current
- v3 [diff vs current]
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 | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/fs/namespace.c b/fs/namespace.c
index ab4174a3c802..ffab0bb1e649 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c@@ -1716,8 +1716,16 @@ static inline bool may_mount(void) } #ifdef CONFIG_MANDATORY_FILE_LOCKING +static bool warned_mand; static inline bool may_mandlock(void) { + if (!warned_mand) { + warned_mand = true; + pr_warn("======================================================\n"); + pr_warn("WARNING: the mand mount option is being deprecated and\n"); + pr_warn(" will be removed in v5.15!\n"); + pr_warn("======================================================\n"); + } return capable(CAP_SYS_ADMIN); } #else
--
2.31.1