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[ Upstream commit 368a83cebbb949adbcc20877c35367178497d9cc ] Instead of synchronously reading one buffer at a time, submit reads as we walk the buffers in the first loop, then wait for them in the second loop. This should be significantly more efficient, particularly on HDDs, but I have not measured. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Link: https://patch.msgid.link/20240718223005.568869-2-willy@infradead.org Signed-off-by: Theodore Ts'o <tytso@mit.edu> Stable-dep-of: 2f3d93e210b9 ("ext4: fix race in buffer_head read fault injection") Signed-off-by: Sasha Levin <sashal@kernel.org>
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.