mirror of https://gitee.com/openkylin/linux.git
sysctl: Remember the ctl_table we passed to register_sysctl_paths
By doing this we allow users of register_sysctl_paths that build and dynamically allocate their ctl_table to be simpler. This allows them to just remember the ctl_table_header returned from register_sysctl_paths from which they can now find the ctl_table array they need to free. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Daniel Lezcano <dlezcano@fr.ibm.com> Cc: Cedric Le Goater <clg@fr.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1057,6 +1057,7 @@ struct ctl_table_header
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struct list_head ctl_entry;
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int used;
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struct completion *unregistering;
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struct ctl_table *ctl_table_arg;
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};
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/* struct ctl_path describes where in the hierarchy a table is added */
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@ -1669,6 +1669,7 @@ struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path,
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new += 2;
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}
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*prevp = table;
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header->ctl_table_arg = table;
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INIT_LIST_HEAD(&header->ctl_entry);
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header->used = 0;
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