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Filename Latest commit message Latest commit date
Dave Chinner 879de98ead xfs: one-shot cached buffers
For the new growfs work, we want to ensure that we serialise
secondary superblock updates with other operations (e.g. scrub)
correctly, but we don't want to cache the buffers for long term
reuse. We need cached buffers for serialisation, however.

To solve this, introduce a "oneshot" buffer which will be marshalled
through the cache but then released once the last current reference
goes away. If the buffer is already cached, then we ignore the
"one-shot" behaviour and leave the buffer in the state it was prior
to the one-shot command being run. This means we don't perturb
either the working set or existing cached buffer state by a one-shot
operation.

Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2018-05-15 18:12:51 -07:00
arch KVM fixes for v4.17-rc4 2018-05-06 05:46:29 -10:00
block
certs
crypto
Documentation media fixes for v4.17-rc4 2018-05-04 05:38:51 -10:00
drivers IOMMU Fixes for Linux v4.17-rc4 2018-05-06 05:42:24 -10:00
firmware
fs xfs: one-shot cached buffers 2018-05-15 18:12:51 -07:00
include iomap: add a swapfile activation function 2018-05-15 17:57:05 -07:00
init
ipc
kernel Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-05-06 05:35:23 -10:00
lib
LICENSES
mm for-linus-20180504 2018-05-04 20:41:44 -10:00
net
samples
scripts Kbuild fixes for v4.17 2018-05-04 21:15:25 -10:00
security
sound
tools ACPI fix for 4.17-rc4 2018-05-04 05:43:33 -10:00
usr
virt KVM/arm fixes for 4.17, take #2 2018-05-05 23:05:31 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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MAINTAINERS Kbuild fixes for v4.17 2018-05-04 21:15:25 -10:00
Makefile Linux 4.17-rc4 2018-05-06 16:57:38 -10:00
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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.