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| author | Jeff Layton <jlayton@kernel.org> | 2021-08-20 09:29:50 -0400 |
|---|---|---|
| committer | Jeff Layton <jlayton@kernel.org> | 2021-08-21 07:32:45 -0400 |
| commit | fdd92b64d15bc4aec973caa25899afd782402e68 (patch) | |
| tree | 6a1d9d4a2af43d99fd5c52e850719dd77fd2959c | |
| parent | 3dbdb38e286903ec220aaf1fb29a8d94297da246 (diff) | |
| download | linux-fdd92b64d15bc4aec973caa25899afd782402e68.tar.gz | |
fs: warn about impending deprecation of mandatory locks
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>
| -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 ab4174a3c802b..2279473d0d6f5 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 |