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- .. 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
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