get rid of ->scm_work_list

recursion in __scm_destroy() will be cut by delaying final fput()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 3 insertions, 21 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index af3555cc760..598ba2da786 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1546,7 +1546,6 @@ struct task_struct {
         unsigned long timer_slack_ns;
         unsigned long default_timer_slack_ns;
 
-        struct list_head        *scm_work_list;
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
         /* Index of current stored address in ret_stack */
         int curr_ret_stack;
diff --git a/include/net/scm.h b/include/net/scm.h
index d456f4c71a3..079d7887dac 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -13,7 +13,6 @@
 #define SCM_MAX_FD      253
 
 struct scm_fp_list {
-        struct list_head        list;
         short                   count;
         short                   max;
         struct file             *fp[SCM_MAX_FD];
diff --git a/net/core/scm.c b/net/core/scm.c
index 611c5efd4cb..8f6ccfd68ef 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -109,25 +109,9 @@ void __scm_destroy(struct scm_cookie *scm)
 
         if (fpl) {
                 scm->fp = NULL;
-                if (current->scm_work_list) {
-                        list_add_tail(&fpl->list, current->scm_work_list);
-                } else {
-                        LIST_HEAD(work_list);
-
-                        current->scm_work_list = &work_list;
-
-                        list_add(&fpl->list, &work_list);
-                        while (!list_empty(&work_list)) {
-                                fpl = list_first_entry(&work_list, struct scm_fp_list, list);
-
-                                list_del(&fpl->list);
-                                for (i=fpl->count-1; i>=0; i--)
-                                        fput(fpl->fp[i]);
-                                kfree(fpl);
-                        }
-
-                        current->scm_work_list = NULL;
-                }
+                for (i=fpl->count-1; i>=0; i--)
+                        fput(fpl->fp[i]);
+                kfree(fpl);
         }
 }
 EXPORT_SYMBOL(__scm_destroy);