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Filename Latest commit message Latest commit date
Jens Axboe 399254aaf4 block: add BIO_NO_PAGE_REF flag
If bio_iov_iter_get_pages() is called on an iov_iter that is flagged
with NO_REF, then we don't need to add a page reference for the pages
that we add.

Add BIO_NO_PAGE_REF to track this in the bio, so IO completion knows
not to drop a reference to these pages.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-03-18 10:44:48 -06:00
arch Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-10 15:22:03 -07:00
block block: add BIO_NO_PAGE_REF flag 2019-03-18 10:44:48 -06:00
certs
crypto
Documentation Merge branch 'core-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-10 13:46:08 -07:00
drivers platform-drivers-x86 for v5.1-1 2019-03-10 13:16:37 -07:00
fs block: add BIO_NO_PAGE_REF flag 2019-03-18 10:44:48 -06:00
include block: add BIO_NO_PAGE_REF flag 2019-03-18 10:44:48 -06:00
init Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-10 13:58:33 -07:00
ipc
kernel Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-10 15:22:03 -07:00
lib DMA mapping updates for 5.1 2019-03-10 11:54:48 -07:00
LICENSES
mm
net
samples
scripts platform-drivers-x86 for v5.1-1 2019-03-10 13:16:37 -07:00
security
sound
tools Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-10 15:22:03 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS io_uring: mark me as the maintainer 2019-03-18 10:44:48 -06:00
Makefile
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.