Martijn Coenen 456ce3aa8c UPSTREAM: loop: Only change blocksize when needed.
Return early in loop_set_block_size() if the requested block size is
identical to the one we already have; this avoids expensive calls to
freeze the block queue.

Bug: 148607611
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(cherry picked from commit 7e81f99afd)
Change-Id: I61778680579dbfeeb193133527a3926d376e0bac
2020-04-04 16:33:07 +00:00
2020-03-25 09:50:38 +01:00
2020-04-03 17:25:37 +00:00
2020-03-03 07:33:01 +01:00
2020-03-25 09:50:38 +01:00
2020-04-03 08:17:23 +02:00
2020-04-03 08:17:23 +02:00
2020-02-24 09:13:25 +01:00
2020-03-25 09:50:38 +01:00
2020-03-03 07:33:01 +01:00
2020-04-03 08:17:23 +02:00

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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.
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