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Filename Latest commit message Latest commit date
Johannes Thumshirn df376b2ed5 block: respect virtual boundary mask in bvecs
With drivers that are settting a virtual boundary constrain, we are
seeing a lot of bio splitting and smaller I/Os being submitted to the
driver.

This happens because the bio gap detection code does not account cases
where PAGE_SIZE - 1 is bigger than queue_virt_boundary() and thus will
split the bio unnecessarily.

Cc: Jan Kara <jack@suse.cz>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:04:22 -07:00
arch pci-v4.20-changes 2018-10-25 06:50:48 -07:00
block block: respect virtual boundary mask in bvecs 2018-11-07 13:04:22 -07:00
certs
crypto Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
Documentation blkcg: revert blkcg cleanups series 2018-11-01 19:59:53 -06:00
drivers nvme-pci: fix conflicting p2p resource adds 2018-11-02 08:14:46 -06:00
firmware
fs blkcg: revert blkcg cleanups series 2018-11-01 19:59:53 -06:00
include blkcg: revert blkcg cleanups series 2018-11-01 19:59:53 -06:00
init Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-23 15:00:03 +01:00
ipc Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-10-24 11:22:39 +01:00
kernel blkcg: revert blkcg cleanups series 2018-11-01 19:59:53 -06:00
lib This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
LICENSES This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
mm blkcg: revert blkcg cleanups series 2018-11-01 19:59:53 -06:00
net This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-12 21:38:46 -07:00
scripts This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
security Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2018-10-24 11:49:35 +01:00
sound sound updates for 4.20 2018-10-25 09:00:15 -07:00
tools pci-v4.20-changes 2018-10-25 06:50:48 -07:00
usr
virt Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-10-24 11:22:39 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS sound updates for 4.20 2018-10-25 09:00:15 -07:00
Makefile Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-23 13:08:53 +01:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.

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.