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Filename Latest commit message Latest commit date
Paul Burton f8dcd9e817 irqchip/mips-gic: Separate IPI reservation & usage tracking 
Since commit 2af70a9620 ("irqchip/mips-gic: Add a IPI hierarchy
domain") introduced the GIC IPI IRQ domain we have tracked both
reservation of interrupts & their use with a single bitmap - ipi_resrv.
If an interrupt is reserved for use as an IPI but not actually in use
then the appropriate bit is set in ipi_resrv. If an interrupt is either
not reserved for use as an IPI or has been allocated as one then the
appropriate bit is clear in ipi_resrv.

Unfortunately this means that checking whether a bit is set in ipi_resrv
to prevent IPI interrupts being allocated for use with a device is
broken, because if the interrupt has been allocated as an IPI first then
its bit will be clear.

Fix this by separating the tracking of IPI reservation & usage,
introducing a separate ipi_available bitmap for the latter. This means
that ipi_resrv will now always have bits set corresponding to all
interrupts reserved for use as IPIs, whether or not they have been
allocated yet, and therefore that checking it when allocating device
interrupts works as expected.

Fixes: 2af70a9620 ("irqchip/mips-gic: Add a IPI hierarchy domain")
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Link: http://lkml.kernel.org/r/1492679256-14513-2-git-send-email-matt.redfearn@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20 16:07:02 +02:00
arch Merge branch 'linus' into irq/core 2017-04-20 16:05:13 +02:00
block blk-mq: Restart a single queue if tag sets are shared 2017-04-07 12:40:09 -06:00
certs
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-04-18 09:03:50 -07:00
Documentation Merge branch 'linus' into irq/core 2017-04-20 16:05:13 +02:00
drivers irqchip/mips-gic: Separate IPI reservation & usage tracking 2017-04-20 16:07:02 +02:00
firmware
fs Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6 2017-04-19 17:12:46 -07:00
include Merge branch 'linus' into irq/core 2017-04-20 16:05:13 +02:00
init mm: move mm_percpu_wq initialization earlier 2017-03-31 17:13:30 -07:00
ipc Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-03 10:16:38 -08:00
kernel Merge branch 'linus' into irq/core 2017-04-20 16:05:13 +02:00
lib sparc64: Use LOCKDEP_SMALL, not PROVE_LOCKING_SMALL 2017-04-18 13:11:07 -07:00
mm mm: make mm_percpu_wq non freezable 2017-04-19 15:53:48 -07:00
net ipv6: drop non loopback packets claiming to originate from ::1 2017-04-17 15:09:23 -04:00
samples statx: Include a mask for stx_attributes in struct statx 2017-04-03 01:06:00 -04:00
scripts Kbuild fixes for v4.11 2017-04-05 08:37:28 -07:00
security Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-03 10:16:38 -08:00
sound ALSA: hda - fix a problem for lineout on a Dell AIO machine 2017-03-31 10:58:26 +02:00
tools While testing my development branch, without the fix for the pid use 2017-04-18 10:19:47 -07:00
usr
virt KVM/ARM Fixes for v4.11-rc6 2017-04-05 16:27:47 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: add Martin Kepplinger's email 2017-04-13 18:24:21 -07:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS virtio: oops fixes 2017-04-14 08:49:39 -07:00
Makefile Linux 4.11-rc7 2017-04-16 13:00:18 -07:00
README

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.