From adbed05ed62d1f3b6f6c5cb88ec52c1ffafc0fd9 Mon Sep 17 00:00:00 2001 From: Venky Shankar Date: Wed, 3 Nov 2021 10:30:39 +0530 Subject: [PATCH] ceph: mount syntax module parameter Add read-only module parameters for supported mount syntaxes. Primary user is the user-space mount helper for catching v2 syntax bugs during testing by cross verifying if the kernel supports v2 syntax on mount failure. Signed-off-by: Venky Shankar Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov --- fs/ceph/super.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 31b5786..2166fc2 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -1461,6 +1461,14 @@ bool disable_send_metrics = false; module_param_cb(disable_send_metrics, ¶m_ops_metrics, &disable_send_metrics, 0644); MODULE_PARM_DESC(disable_send_metrics, "Enable sending perf metrics to ceph cluster (default: on)"); +/* for both v1 and v2 syntax */ +static bool mount_support = true; +static const struct kernel_param_ops param_ops_mount_syntax = { + .get = param_get_bool, +}; +module_param_cb(mount_syntax_v1, ¶m_ops_mount_syntax, &mount_support, 0444); +module_param_cb(mount_syntax_v2, ¶m_ops_mount_syntax, &mount_support, 0444); + module_init(init_ceph); module_exit(exit_ceph); -- 2.7.4