1.Remove meaningless comment in kill_proc(). That doesn't tell anything.
2.Fix the wrong function name get_hwpoison_unless_zero(). It should be
get_page_unless_zero().
3.The gate keeper for free hwpoison page has moved to check_new_page().
Update the corresponding comment.
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
mm/memory-failure.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index fb6a10005109..df3bf266eebf 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -277,7 +277,7 @@ static int kill_proc(struct to_kill *tk, unsigned long pfn, int flags)
* to SIG_IGN, but hopefully no one will do that?
*/
ret = send_sig_mceerr(BUS_MCEERR_AO, (void __user *)tk->addr,
- addr_lsb, t); /* synchronous? */
+ addr_lsb, t);
if (ret < 0)
pr_info("Error sending signal to %s:%d: %d\n",
t->comm, t->pid, ret);
@@ -1246,9 +1246,9 @@ static int __get_hwpoison_page(struct page *page, unsigned long flags)
return ret;
/*
- * This check prevents from calling get_hwpoison_unless_zero()
- * for any unsupported type of page in order to reduce the risk of
- * unexpected races caused by taking a page refcount.
+ * This check prevents from calling get_page_unless_zero() for any
+ * unsupported type of page in order to reduce the risk of unexpected
+ * races caused by taking a page refcount.
*/
if (!HWPoisonHandlable(head, flags))
return -EBUSY;
@@ -2025,7 +2025,7 @@ int memory_failure(unsigned long pfn, int flags)
/*
* We need/can do nothing about count=0 pages.
* 1) it's a free page, and therefore in safe hand:
- * prep_new_page() will be the gate keeper.
+ * check_new_page() will be the gate keeper.
* 2) it's part of a non-compound high order page.
* Implies some kernel user: cannot stop them from
* R/W the page; let's pray that the page has been
--
2.23.0
