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bd06bce1b3
As the helper num_extent_folios() is now __pure, we can use it in for loop without storing its value in a variable explicitly, the compiler will do this for us. The effects on btrfs.ko is -200 bytes and there are stack space savings too: btrfs_clone_extent_buffer -8 (32 -> 24) btrfs_clear_buffer_dirty -8 (48 -> 40) clear_extent_buffer_uptodate -8 (40 -> 32) set_extent_buffer_dirty -8 (32 -> 24) write_one_eb -8 (88 -> 80) set_extent_buffer_uptodate -8 (40 -> 32) read_extent_buffer_pages_nowait -16 (64 -> 48) find_extent_buffer -8 (32 -> 24) Signed-off-by: David Sterba <dsterba@suse.com> |
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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 reStructuredText 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.