From bb3b2cfeb206f5b10b859e134651b54120e3f530 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 30 Jun 2026 18:05:56 +0100 Subject: ARM: 9480/1: entry: expand comment in __switch_to As per discussion between the developers in the mail thread linked, expand the comment in __switch_to so that readers of the code understand what is going on. Suggested-by: Mark Rutland Acked-by: Mark Rutland Signed-off-by: Linus Walleij > Signed-off-by: Russell King --- Documentation/mm/page_cache.rst | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 Documentation/mm/page_cache.rst (limited to 'Documentation/mm/page_cache.rst') diff --git a/Documentation/mm/page_cache.rst b/Documentation/mm/page_cache.rst new file mode 100644 index 000000000..138d61f86 --- /dev/null +++ b/Documentation/mm/page_cache.rst @@ -0,0 +1,15 @@ +.. SPDX-License-Identifier: GPL-2.0 + +========== +Page Cache +========== + +The page cache is the primary way that the user and the rest of the kernel +interact with filesystems. It can be bypassed (e.g. with O_DIRECT), +but normal reads, writes and mmaps go through the page cache. + +Folios +====== + +The folio is the unit of memory management within the page cache. +Operations -- cgit v1.3.1