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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

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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[Message index]

		[PATCH 0/2] SYSCTL: export root handling routines By: Stanislav Kinsbursky on Mon, 12 December 2011 17:51
		[PATCH 2/2] SYSCTL: export root register and unregister routines By: Stanislav Kinsbursky on Mon, 12 December 2011 17:51
		[PATCH 1/2] SYSCTL: root unregister routine introduced By: Stanislav Kinsbursky on Mon, 12 December 2011 17:51
		Re: [PATCH 1/2] SYSCTL: root unregister routine introduced By: akpm on Mon, 12 December 2011 22:52
		Re: [PATCH 1/2] SYSCTL: root unregister routine introduced By: Stanislav Kinsbursky on Tue, 13 December 2011 09:02
		Re: Re: [PATCH 1/2] SYSCTL: root unregister routine introduced By: Glauber Costa on Tue, 13 December 2011 09:13
		Re: Re: [PATCH 1/2] SYSCTL: root unregister routine introduced By: Kinsbursky Stanislav on Tue, 13 December 2011 10:03
		Re: [PATCH 1/2] SYSCTL: root unregister routine introduced By: ebiederm on Sat, 17 December 2011 22:30
		Re: Re: [PATCH 1/2] SYSCTL: root unregister routine introduced By: Glauber Costa on Tue, 13 December 2011 10:04
		Re: Re: [PATCH 1/2] SYSCTL: root unregister routine introduced By: Kinsbursky Stanislav on Tue, 13 December 2011 10:15

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