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Filename Latest commit message Latest commit date
Christoph Hellwig 485734f3fc x86/swiotlb: Enable swiotlb for > 4GiG RAM on 32-bit kernels
We already build the swiotlb code for 32-bit kernels with PAE support,
but the code to actually use swiotlb has only been enabled for 64-bit
kernels for an unknown reason.

Before Linux v4.18 we paper over this fact because the networking code,
the SCSI layer and some random block drivers implemented their own
bounce buffering scheme.

[ mingo: Changelog fixes. ]

Fixes: 21e07dba9f ("scsi: reduce use of block bounce buffers")
Fixes: ab74cfebaf ("net: remove the PCI_DMA_BUS_IS_PHYS check in illegal_highdma")
Reported-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Matthew Whitehead <tedheadster@gmail.com>
Cc: konrad.wilk@oracle.com
Cc: iommu@lists.linux-foundation.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20181014075208.2715-1-hch@lst.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-19 07:49:32 +02:00
arch x86/swiotlb: Enable swiotlb for > 4GiG RAM on 32-bit kernels 2018-10-19 07:49:32 +02:00
block blk-wbt: wake up all when we scale up, not down 2018-10-11 13:31:28 -06:00
certs
crypto
Documentation Char/Misc fixes for 4.19-rc7 2018-10-07 08:15:57 +02:00
drivers Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-10-14 08:33:35 +02:00
firmware
fs libnvdimm/dax 4.19-rc8 2018-10-14 08:34:31 +02:00
include More arm64 fixes 2018-10-13 09:05:37 +02:00
init
ipc ipc/shm.c: use ERR_CAST() for shm_lock() error return 2018-10-05 16:32:04 -07:00
kernel Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-10-12 12:35:02 +02:00
lib * Fix a stack overflow in lib/bch.c 2018-10-12 12:54:26 +02:00
LICENSES
mm mm/thp: fix call to mmu_notifier in set_pmd_migration_entry() v2 2018-10-13 09:31:02 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-12 09:01:59 +02:00
samples samples: disable CONFIG_SAMPLES for UML 2018-10-11 02:15:46 +09:00
scripts Kbuild fixes for v4.19 (2nd) 2018-10-11 19:23:07 +02:00
security Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" 2018-09-25 13:28:58 +02:00
sound ALSA: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 2018-10-04 07:50:48 +02:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-12 09:01:59 +02:00
usr
virt KVM: Remove obsolete kvm_unmap_hva notifier backend 2018-09-07 15:06:02 +02:00
.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 MAINTAINERS: use the correct location for dt-bindings includes for mux 2018-10-12 17:36:39 +02:00
Makefile Kbuild fixes for v4.19 (2nd) 2018-10-11 19:23:07 +02:00
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.