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890188d2d7
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Miquel Raynal 890188d2d7
spi: atmel: Prevent spi transfers from being killed 
Upstream commit e0205d6203 ("spi: atmel: Prevent false timeouts on
long transfers") has tried to mitigate the problem of getting spi
transfers canceled because they were lasting too long. On slow buses,
transfers in the MiB range can take more than one second and thus a
calculation was added to progressively increment the timeout value. In
order to not be too problematic from a user point of view (waiting dozen
of seconds or even minutes), the wait call was turned interruptible.

Turning the wait interruptible was a mistake as what we really wanted to
do was to be able to kill a transfer. Any signal interrupting our
transfer would not be suitable at all so a second attempt was made at
turning the wait killable instead.

Link: https://lore.kernel.org/linux-spi/20231127095842.389631-1-miquel.raynal@bootlin.com/

All being well, it was reported that JFFS2 was showing a splat when
interrupting a transfer. After some more debate about whether JFFS2
should be fixed and how, it was also pointed out that the whole
consistency of the filesystem in case of parallel I/O would be
compromised. Changing JFFS2 behavior would in theory be possible but
nobody has the energy and time and knowledge to do this now, so better
prevent spi transfers to be interrupted by the user.

Partially revert the blamed commit to no longer use the interruptible
nor the killable variant of wait_for_completion().

Fixes: e0205d6203 ("spi: atmel: Prevent false timeouts on long transfers")
Cc:  <stable@vger.kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Ronald Wahl <ronald.wahl@raritan.com>
Link: https://lore.kernel.org/r/20231205083102.16946-1-miquel.raynal@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-12-05 13:12:28 +00:00
arch parisc architecture fixes for kernel v6.7-rc1 (part 2): 2023-11-12 11:05:31 -08:00
block blk-core: use pr_warn_ratelimited() in bio_check_ro() 2023-11-07 08:15:23 -07:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto This push fixes a regression in ahash and hides the Kconfig sub-options for the jitter RNG. 2023-11-09 17:04:58 -08:00
Documentation Probes fixes for v6.7-rc1: 2023-11-10 16:35:04 -08:00
drivers spi: atmel: Prevent spi transfers from being killed 2023-12-05 13:12:28 +00:00
fs Sixteen smb3/cifs client fixes 2023-11-11 17:17:22 -08:00
include Probes fixes for v6.7-rc1: 2023-11-10 16:35:04 -08:00
init As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
io_uring io_uring: do not clamp read length for multishot read 2023-11-06 13:41:58 -07:00
ipc Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
kernel Probes fixes for v6.7-rc1: 2023-11-10 16:35:04 -08:00
lib lib: test_objpool: make global variables static 2023-11-10 19:59:04 +09:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm memblock: report failures when memblock_can_resize is not set 2023-11-08 09:40:13 -08:00
net Including fixes from netfilter and bpf. 2023-11-09 17:09:35 -08:00
rust Kbuild updates for v6.7 2023-11-04 08:07:19 -10:00
samples Landlock updates for v6.7-rc1 2023-11-03 09:28:53 -10:00
scripts Kbuild updates for v6.7 2023-11-04 08:07:19 -10:00
security + Features 2023-11-03 09:48:17 -10:00
sound sound fixes for 6.7-rc1 2023-11-10 11:57:51 -08:00
tools LoongArch changes for v6.7 2023-11-12 10:58:08 -08:00
usr arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
virt ARM: 2023-09-07 13:52:20 -07:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: generate kernel.spec in rpmbuild/SPECS/ 2023-10-03 20:49:09 +09:00
.mailmap As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig
MAINTAINERS - removed AR7 platform support 2023-11-10 09:19:46 -08:00
Makefile Linux 6.7-rc1 2023-11-12 16:19:07 -08:00
README

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.