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-rw-r--r--mm/memory-failure.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index fc8b51744579..7e08cbf3ba49 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2008, 2009 Intel Corporation
* Authors: Andi Kleen, Fengguang Wu
*
- * This software may be redistributed and/or modified under the terms of
- * the GNU General Public License ("GPL") version 2 only as published by the
- * Free Software Foundation.
- *
* High level machine check handler. Handles pages reported by the
* hardware as being corrupted usually due to a multi-bit ECC memory or cache
* failure.
@@ -216,12 +213,12 @@ static int kill_proc(struct to_kill *tk, unsigned long pfn, int flags)
short addr_lsb = tk->size_shift;
int ret;
- pr_err("Memory failure: %#lx: Killing %s:%d due to hardware memory corruption\n",
+ pr_err("Memory failure: %#lx: Sending SIGBUS to %s:%d due to hardware memory corruption\n",
pfn, t->comm, t->pid);
if ((flags & MF_ACTION_REQUIRED) && t->mm == current->mm) {
ret = force_sig_mceerr(BUS_MCEERR_AR, (void __user *)tk->addr,
- addr_lsb, current);
+ addr_lsb);
} else {
/*
* Don't use force here, it's convenient if the signal
@@ -1733,6 +1730,8 @@ static int soft_offline_huge_page(struct page *page, int flags)
if (!ret) {
if (set_hwpoison_free_buddy_page(page))
num_poisoned_pages_inc();
+ else
+ ret = -EBUSY;
}
}
return ret;
@@ -1857,11 +1856,8 @@ static int soft_offline_in_use_page(struct page *page, int flags)
static int soft_offline_free_page(struct page *page)
{
- int rc = 0;
- struct page *head = compound_head(page);
+ int rc = dissolve_free_huge_page(page);
- if (PageHuge(head))
- rc = dissolve_free_huge_page(page);
if (!rc) {
if (set_hwpoison_free_buddy_page(page))
num_poisoned_pages_inc();