memory-failure: use a folio in me_huge_page()

Browse source

[ Upstream commit b6fd410c32 ]

This function was already explicitly calling compound_head();
unfortunately the compiler can't know that and elide the redundant calls
to compound_head() buried in page_mapping(), unlock_page(), etc.  Switch
to using a folio, which does let us elide these calls.

Link: https://lkml.kernel.org/r/20231117161447.2461643-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stable-dep-of: 8cf360b9d6 ("mm/memory-failure: fix handling of dissolved but not taken off from buddy pages")
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Matthew Wilcox (Oracle) 2023-11-17 16:14:45 +00:00 • committed by Greg Kroah-Hartman

parent 130b4b9478

commit fe01748ca6

1 changed files with 6 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

12

mm/memory-failure.c

View file