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| author | Jeff Layton <jlayton@kernel.org> | 2021-08-20 09:29:50 -0400 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2021-08-26 08:37:29 -0400 |
| commit | 0febcf95cb2741ea05a542b71204e461c1dfce92 (patch) | |
| tree | 124fef124f0570f4bb0eff325d215265d95f8be2 | |
| parent | c5e63107d171835a9dec513180fe481e76341f0f (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 68457fa2f981..b9e30a385c01 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1670,8 +1670,12 @@ 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 |