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Christoph Hellwig bf9c0538e4 ataflop: use a separate gendisk for each media format
The Atari floppy driver usually autodetects the media when used with the
ormal /dev/fd? devices, which also are the only nodes created by udev.
But it also supports various aliases that force a given media format.
That is currently supported using the blk_register_region framework
which finds the floppy gendisk even for a 'mismatched' dev_t.  The
problem with this (besides the code complexity) is that it creates
multiple struct block_device instances for the whole device of a
single gendisk, which can lead to interesting issues in code not
aware of that fact.

To fix this just create a separate gendisk for each of the aliases
if they are accessed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-11-16 08:14:31 -07:00
arch Fixes for ARM and x86, the latter especially for old processors 2020-11-15 09:57:58 -08:00
block block: add an optional probe callback to major_names 2020-11-16 08:14:30 -07:00
certs
crypto
Documentation Devicetree fixes for v5.10, take 2: 2020-11-13 12:47:02 -08:00
drivers ataflop: use a separate gendisk for each media format 2020-11-16 08:14:31 -07:00
fs Merge branch 'akpm' (patches from Andrew) 2020-11-14 12:35:11 -08:00
include ide: remove ide_{,un}register_region 2020-11-16 08:14:30 -07:00
init bootconfig: Extend the magic check range to the preceding 3 bytes 2020-11-12 20:36:52 -05:00
ipc
kernel A set of fixes for perf: 2020-11-15 09:46:36 -08:00
lib
LICENSES
mm Merge branch 'for-5.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu 2020-11-15 08:57:19 -08:00
net Networking fixes for 5.10-rc4, including fixes from the bpf subtree. 2020-11-12 14:02:04 -08:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2020-11-06 17:49:34 -08:00
scripts Networking fixes for 5.10-rc4, including fixes from the bpf subtree. 2020-11-12 14:02:04 -08:00
security selinux/stable-5.10 PR 20201113 2020-11-14 12:04:02 -08:00
sound
tools Networking fixes for 5.10-rc4, including fixes from the bpf subtree. 2020-11-12 14:02:04 -08:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: fix entry for Dmitry Baryshkov/Eremin-Solenikov 2020-11-14 11:26:03 -08:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS USB/Thunderbolt fixes for 5.10-rc4 2020-11-15 10:02:41 -08:00
Makefile Linux 5.10-rc4 2020-11-15 16:44:31 -08:00
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.