tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1.. SPDX-License-Identifier: GPL-2.0
2
3==========
4Page Cache
5==========
6
7The page cache is the primary way that the user and the rest of the kernel
8interact with filesystems. It can be bypassed (e.g. with O_DIRECT),
9but normal reads, writes and mmaps go through the page cache.
10
11Folios
12======
13
14The folio is the unit of memory management within the page cache.
15Operations