blob: 138d61f869df09524dc3d8aa9c7af69543726898 [file] [log] [blame]
.. 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.
The folio is the unit of memory management within the page cache.