diff options
Diffstat (limited to 'Documentation/mm/page_cache.rst')
| -rw-r--r-- | Documentation/mm/page_cache.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/mm/page_cache.rst b/Documentation/mm/page_cache.rst new file mode 100644 index 000000000000..138d61f869df --- /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 |