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sysctl: Remember the ctl_table we passed to register_sysctl_paths

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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>
This commit is contained in:
Eric W. Biederman 2007-11-30 23:52:10 +11:00 • committed by David S. Miller
parent 29e796fd4d
commit 23eb06de7d
2 changed files with 2 additions and 0 deletions
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1
include/linux/sysctl.h
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@ -1057,6 +1057,7 @@ struct ctl_table_header
struct list_head ctl_entry;
int used;
struct completion *unregistering;
struct ctl_table *ctl_table_arg;
};
/* struct ctl_path describes where in the hierarchy a table is added */

1
kernel/sysctl.c
View file

@ -1669,6 +1669,7 @@ struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path,
new += 2;
}
*prevp = table;
header->ctl_table_arg = table;
INIT_LIST_HEAD(&header->ctl_entry);
header->used = 0;