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Filename Latest commit message Latest commit date
Konstantin Khlebnikov 3a10f999ff blk-throttle: fix zero wait time for iops throttled group 
After commit 991f61fe7e ("Blk-throttle: reduce tail io latency when
iops limit is enforced") wait time could be zero even if group is
throttled and cannot issue requests right now. As a result
throtl_select_dispatch() turns into busy-loop under irq-safe queue
spinlock.

Fix is simple: always round up target time to the next throttle slice.

Fixes: 991f61fe7e ("Blk-throttle: reduce tail io latency when iops limit is enforced")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-10 09:00:57 -06:00
arch Power management updates for 5.3-rc1 2019-07-09 10:05:22 -07:00
block blk-throttle: fix zero wait time for iops throttled group 2019-07-10 09:00:57 -06:00
certs Keyrings ACL 2019-07-08 19:56:57 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
Documentation blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner() 2019-07-10 09:00:57 -06:00
drivers for-5.3/libata-20190708 2019-07-09 10:59:26 -07:00
fs blkcg, writeback: Add wbc->no_cgroup_owner 2019-07-10 09:00:57 -06:00
include block: Fix potential overflow in blk_report_zones() 2019-07-10 09:00:57 -06:00
init for-5.3/block-20190708 2019-07-09 10:45:06 -07:00
ipc
kernel for-5.3/block-20190708 2019-07-09 10:45:06 -07:00
lib for-5.3/block-20190708 2019-07-09 10:45:06 -07:00
LICENSES
mm Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-07-08 21:48:15 -07:00
net LED updates for 5.3-rc1 2019-07-09 08:59:39 -07:00
samples media updates for v5.3-rc1 2019-07-09 09:47:22 -07:00
scripts Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 16:12:03 -07:00
security Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-07-08 21:48:15 -07:00
sound
tools ACPI updates for 5.3-rc1 2019-07-09 10:21:39 -07:00
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MAINTAINERS ACPI updates for 5.3-rc1 2019-07-09 10:21:39 -07:00
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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.