summaryrefslogtreecommitdiff
path: root/mm
diff options
context:
space:
mode:
authorMatthew Wilcox (Oracle) <willy@infradead.org>2021-12-11 01:46:18 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-12-11 04:10:55 +0300
commit0c941cf30b913d4a684d3f8d9eee60e0daffdc79 (patch)
treee8e947137bfffc6d7bdca780cf78da0e81b27b3e /mm
parentd020d9e63d5396fbcc3a2c01cee38e28c7d20a3d (diff)
downloadlinux-0c941cf30b913d4a684d3f8d9eee60e0daffdc79.tar.xz
filemap: remove PageHWPoison check from next_uptodate_page()
Pages are individually marked as suffering from hardware poisoning. Checking that the head page is not hardware poisoned doesn't make sense; we might be after a subpage. We check each page individually before we use it, so this was an optimisation gone wrong. It will cause us to fall back to the slow path when there was no need to do that Link: https://lkml.kernel.org/r/20211120174429.2596303-1-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: Yang Shi <shy828301@gmail.com> Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/filemap.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index daa0e23a6ee6..39c4c46c6133 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3253,8 +3253,6 @@ static struct page *next_uptodate_page(struct page *page,
goto skip;
if (!PageUptodate(page) || PageReadahead(page))
goto skip;
- if (PageHWPoison(page))
- goto skip;
if (!trylock_page(page))
goto skip;
if (page->mapping != mapping)