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From: Alexey Dobriyan <adobriyan@gmail.com>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, mahesh@linux.vnet.ibm.com
Subject: [PATCH] proc: simpler /proc/vmcore cleanup
Date: Tue, 21 Nov 2017 22:11:21 +0300	[thread overview]
Message-ID: <20171121191121.GA20757@avx2> (raw)

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@gmail.com>
---

 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);
 	}

                 reply	other threads:[~2017-11-21 19:11 UTC|newest]

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