On Thu, 2 Sept 2021 at 18:57, Jeff Layton jlayton@kernel.org wrote:
On Thu, 2021-09-02 at 18:50 +0530, Naresh Kamboju wrote:
On Tue, 24 Aug 2021 at 22:35, Sasha Levin sashal@kernel.org wrote:
From: Jeff Layton jlayton@kernel.org
[ 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
fs/namespace.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/namespace.c b/fs/namespace.c index caad091fb204..03770bae9dd5 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");We are getting this error on all devices while running LTP syscalls ftruncate test cases on all the stable-rc branches.
You really don't want to run those tests anymore then. The "mand" mount option no longer works, so any tests that require mandatory locking won't function correctly.
I will communicate this warning with the LTP community. Thank you.
- Naresh