[PATCH] proc: simpler /proc/vmcore cleanup

From: Alexey Dobriyan
Date: Tue Nov 21 2017 - 14:11:32 EST


Iterators aren't necessary as you can just grab the first entry and
delete it until no entries left.

Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
---

fs/proc/vmcore.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -1178,18 +1178,16 @@ fs_initcall(vmcore_init);
/* Cleanup function for vmcore module. */
void vmcore_cleanup(void)
{
- struct list_head *pos, *next;
-
if (proc_vmcore) {
proc_remove(proc_vmcore);
proc_vmcore = NULL;
}

/* clear the vmcore list. */
- list_for_each_safe(pos, next, &vmcore_list) {
+ while (!list_empty(&vmcore_list)) {
struct vmcore *m;

- m = list_entry(pos, struct vmcore, list);
+ m = list_first_entry(&vmcore_list, struct vmcore, list);
list_del(&m->list);
kfree(m);
}