diff options
| author | Jeff Layton <jlayton@kernel.org> | 2021-08-20 09:29:50 -0400 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2021-08-26 08:36:49 -0400 |
| commit | 6ce8ad137e3ad0ea20a55fdb8d9cfe01bd79a109 (patch) | |
| tree | 448718d5fb7cba9ce10327356043e3ef6bcc857c | |
| parent | 3cab951cf059bd6854c3b796f6df928f0c78224c (diff) | |
fs: warn about impending deprecation of mandatory locks
[ Upstream commit fdd92b64d15bc4aec973caa25899afd782402e68 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/namespace.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 8d2bf350e7c6..2f3c6a0350a8 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1611,8 +1611,12 @@ 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 |