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[PATCH 1/2] SYSCTL: root unregister routine introduced [message #44523 is a reply to message #44521] Mon, 12 December 2011 17:51 Go to previous messageGo to previous message
Stanislav Kinsbursky is currently offline  Stanislav Kinsbursky
Messages: 683
Registered: October 2011
Senior Member
This routine is required for SUNRPC sysctl's, which are going to be allocated,
processed and destroyed per network namespace context.
IOW, new sysctl root will be registered on network namespace creation and
thus have to unregistered before network namespace destruction.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>

---
kernel/sysctl.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index ae27196..21e68c1 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1701,6 +1701,13 @@ void register_sysctl_root(struct ctl_table_root *root)
spin_unlock(&sysctl_lock);
}

+void unregister_sysctl_root(struct ctl_table_root *root)
+{
+ spin_lock(&sysctl_lock);
+ list_del(&root->root_list);
+ spin_unlock(&sysctl_lock);
+}
+
/*
* sysctl_perm does NOT grant the superuser all rights automatically, because
* some sysctl variables are readonly even to root.

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