iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mm: hwpoison: handle non-anonymous THP correctly

Browse Source 
Currently hwpoison doesn't handle non-anonymous THP, but since v4.8 THP
support for tmpfs and read-only file cache has been added.  They could
be offlined by split THP, just like anonymous THP.

Link: https://lkml.kernel.org/r/20211020210755.23964-7-shy828301@gmail.com
Signed-off-by: Yang Shi <shy828301@gmail.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yang Shi 2021-11-05 13:41:14 -07:00 committed by Linus Torvalds
parent b9d02f1bdd
commit 4966455d91
1 changed files with 2 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
mm/memory-failure.c
View File

@ -1444,14 +1444,11 @@ static int identify_page_state(unsigned long pfn, struct page *p,
static int try_to_split_thp_page(struct page *page, const char *msg)
{
lock_page(page);
if (!PageAnon(page) || unlikely(split_huge_page(page))) {
if (unlikely(split_huge_page(page))) {
unsigned long pfn = page_to_pfn(page);
unlock_page(page);
if (!PageAnon(page))
pr_info("%s: %#lx: non anonymous thp\n", msg, pfn);
else
pr_info("%s: %#lx: thp split failed\n", msg, pfn);
pr_info("%s: %#lx: thp split failed\n", msg, pfn);
put_page(page);
return -EBUSY;
}