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authorSargun Dhillon <sargun@sargun.me>2018-03-29 04:28:23 +0300
committerJames Morris <james.morris@microsoft.com>2018-03-31 05:18:27 +0300
commitdf0ce17331e2501dbffc060041dfc6c5f85227b5 (patch)
tree0336a2aa616f738572946bd41bdfbbe1efbf3a83 /scripts/gcc-plugins
parent5893ed18a26d1f56b97c0290b0cbbc2d49d6de28 (diff)
downloadlinux-df0ce17331e2501dbffc060041dfc6c5f85227b5.tar.xz
security: convert security hooks to use hlist
This changes security_hook_heads to use hlist_heads instead of the circular doubly-linked list heads. This should cut down the size of the struct by about half. In addition, it allows mutation of the hooks at the tail of the callback list without having to modify the head. The longer-term purpose of this is to enable making the heads read only. Signed-off-by: Sargun Dhillon <sargun@sargun.me> Reviewed-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Acked-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: James Morris <james.morris@microsoft.com>
Diffstat (limited to 'scripts/gcc-plugins')
-rw-r--r--scripts/gcc-plugins/randomize_layout_plugin.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/gcc-plugins/randomize_layout_plugin.c b/scripts/gcc-plugins/randomize_layout_plugin.c
index c4a345c3715b..6d5bbd31db7f 100644
--- a/scripts/gcc-plugins/randomize_layout_plugin.c
+++ b/scripts/gcc-plugins/randomize_layout_plugin.c
@@ -52,8 +52,8 @@ static const struct whitelist_entry whitelist[] = {
{ "net/unix/af_unix.c", "unix_skb_parms", "char" },
/* big_key payload.data struct splashing */
{ "security/keys/big_key.c", "path", "void *" },
- /* walk struct security_hook_heads as an array of struct list_head */
- { "security/security.c", "list_head", "security_hook_heads" },
+ /* walk struct security_hook_heads as an array of struct hlist_head */
+ { "security/security.c", "hlist_head", "security_hook_heads" },
{ }
};