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Filename Latest commit message Latest commit date
Heinz Mauelshagen 6e53636fe8 dm raid: add raid4/5/6 journal write-back support via journal_mode option
Commit 63c32ed4af ("dm raid: add raid4/5/6 journaling support") added
journal support to close the raid4/5/6 "write hole" -- in terms of
writethrough caching.

Introduce a "journal_mode" feature and use the new
r5c_journal_mode_set() API to add support for switching the journal
device's cache mode between write-through (the current default) and
write-back.

NOTE: If the journal device is not layered on resilent storage and it
fails, write-through mode will cause the "write hole" to reoccur.  But
if the journal fails while in write-back mode it will cause data loss
for any dirty cache entries unless resilent storage is used for the
journal.

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-03-27 12:08:07 -04:00
arch Second batch of KVM changes for 4.11 merge window 2017-03-04 11:36:19 -08:00
block
certs
crypto
Documentation dm raid: add raid4/5/6 journal write-back support via journal_mode option 2017-03-27 12:08:07 -04:00
drivers dm raid: add raid4/5/6 journal write-back support via journal_mode option 2017-03-27 12:08:07 -04:00
firmware
fs
include dm table: add flag to allow target to handle its own integrity metadata 2017-03-07 13:28:32 -05:00
init
ipc
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
lib
mm
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
samples
scripts
security
sound
tools Second batch of KVM changes for 4.11 merge window 2017-03-04 11:36:19 -08:00
usr
virt Second batch of KVM changes for 4.11 merge window 2017-03-04 11:36:19 -08:00
.cocciconfig
.get_maintainer.ignore
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Kbuild
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MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
Makefile Linux 4.11-rc1 2017-03-05 12:59:56 -08:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.