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| author | Jeff Layton <jlayton@kernel.org> | 2021-08-20 16:29:50 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2021-08-26 15:35:57 +0300 |
| commit | 0d5fcfc6406ee7138ca0141769f90a37d4b4ae8b (patch) | |
| tree | 302aec5e972e8409731abb9d2b00ddb2ad06a1d5 /fs | |
| parent | 8132fc2bf4b70d19f666e82e7ce28dc871ed3b92 (diff) | |
| download | linux-0d5fcfc6406ee7138ca0141769f90a37d4b4ae8b.tar.xz | |
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>
Diffstat (limited to 'fs')
| -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 175312428cdf..046b084136c5 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1697,8 +1697,12 @@ 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 |