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83f33d6865
This patch changes how the LRU index works: Instead of using KEY_TYPE_lru where the bucket the lru entry points to is part of the value, this switches to KEY_TYPE_set and encoding the bucket we refer to in the low bits of the key. This means that we no longer have to check for collisions when inserting LRU entries. We'll be making using of this in the next patch, which adds a btree write buffer - a pure write buffer for btree updates, where updates are appended to a simple array and then periodically sorted and batch inserted. This is a new on disk format version, and a forced upgrade. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
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| .clang-format | ||
| .cocciconfig | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.