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From: Jeff Layton <jlayton@kernel.org>
To: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org,
Cc: bfields@fieldses.org, linux-nfs@vger.kernel.org,
	linux-doc@vger.kernel.org, david@redhat.com,
	stable@vger.kernel.org, cluster-devel@redhat.com,
	linux-mm@kvack.org, rostedt@goodmis.org, viro@zeniv.linux.org.uk,
	luto@kernel.org, v9fs-developer@lists.sourceforge.net,
	linux-afs@lists.infradead.org, ocfs2-devel@oss.oracle.com,
Subject: [Ocfs2-devel] [PATCH v3 1/2] fs: warn about impending deprecation of mandatory locks
Date: Fri, 20 Aug 2021 12:39:18 -0400	[thread overview]
Message-ID: <20210820163919.435135-2-jlayton@kernel.org> (raw)
In-Reply-To: <20210820163919.435135-1-jlayton@kernel.org>

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>
 fs/namespace.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index ab4174a3c802..2279473d0d6f 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1716,8 +1716,12 @@ static inline bool may_mount(void)
-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);

Ocfs2-devel mailing list

  reply	other threads:[~2021-08-20 16:39 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-20 16:39 [Ocfs2-devel] [PATCH v3 0/2] fs: remove support for mandatory locking Jeff Layton
2021-08-20 16:39 ` Jeff Layton [this message]
2021-08-20 16:39 ` [Ocfs2-devel] [PATCH v3 2/2] fs: remove mandatory file locking support Jeff Layton
2021-08-20 19:45   ` Al Viro
2021-08-23 15:12   ` Guenter Roeck
2021-08-20 18:15 ` [Ocfs2-devel] [PATCH v3 0/2] fs: remove support for mandatory locking Jeff Layton

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