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d71e023376
Previously, we woudn't try to read at all from a failed device - that doesn't make much sense, the device may be unhealthy (perhaps taking longer than it should to service reads), but if it's our only option we should still try to read from it. Now, bch2_bkey_pick_read_device() will pick failed devices only if there are no non-failed replicas to read from. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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.