[PATCH 2/4] sysctl: Remember the ctl_table we passed to register_sysctl_paths

[Eric W. Biederman]

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 <[EMAIL PROTECTED]>
---
 include/linux/sysctl.h |    1 +
 kernel/sysctl.c        |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index eb522bf..8b2e9e0 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -1063,6 +1063,7 @@ 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 */
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index fa92e70..effae87 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1598,6 +1598,7 @@ 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;
-- 
1.5.3.rc6.17.g1911

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