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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-06-24 10:03:05 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-22 23:58:00 +0400 |
| commit | 6120d3dbb1220792ebea88cd475e1ec8f8620a93 (patch) | |
| tree | 0ca01ed01651ddb1f54f6fe43c2288acb8d361c3 | |
| parent | 3ffa3c0e3f6e62f67fc2346ca60161dfb030083d (diff) | |
| download | linux-6120d3dbb1220792ebea88cd475e1ec8f8620a93.tar.bz2 | |
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>
| -rw-r--r-- | include/linux/sched.h | 1 | ||||
| -rw-r--r-- | include/net/scm.h | 1 | ||||
| -rw-r--r-- | net/core/scm.c | 22 |
3 files changed, 3 insertions, 21 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index af3555cc760f..598ba2da7865 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 d456f4c71a32..079d7887dac1 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 611c5efd4cb0..8f6ccfd68ef4 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); |