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Jens Axboe 30e066286e nvme: fix boot hang with only being able to get one IRQ vector
NVMe always asks for io_queues + 1 worth of IRQ vectors, which
means that even when we scale all the way down, we still ask
for 2 vectors and get -ENOSPC in return if the system can't
support more than 1.

Getting just 1 vector is fine, it just means that we'll have
1 IO queue and 1 admin queue, with a shared vector between them.
Check for this case and don't add our + 1 if it happens.

Fixes: 3b6592f70a ("nvme: utilize two queue maps, one for reads and one for writes")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-14 10:13:50 -07:00
arch ARM: SoC fixes 2018-11-07 09:13:34 -08:00
block block: remove set but not used variable 'et' 2018-11-09 20:08:00 -07:00
certs
crypto
Documentation block: remove legacy IO schedulers 2018-11-07 13:42:32 -07:00
drivers nvme: fix boot hang with only being able to get one IRQ vector 2018-11-14 10:13:50 -07:00
firmware
fs block: add REQ_HIPRI and inherit it from IOCB_HIPRI 2018-11-07 13:45:00 -07:00
include ide: don't use req->special 2018-11-10 08:03:52 -07:00
init block: remove dead elevator code 2018-11-07 13:42:32 -07:00
ipc
kernel Merge branch 'irq/for-block' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into for-4.21/block 2018-11-07 13:43:54 -07:00
lib
LICENSES This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
mm memory_hotplug: cond_resched in __remove_pages 2018-11-03 10:09:38 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-11-06 07:44:04 -08:00
samples
scripts Kbuild updates for v4.20 (2nd) 2018-11-03 10:47:33 -07:00
security
sound sound fixes for 4.20-rc1 2018-11-02 11:02:52 -07:00
tools Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-03 18:25:17 -07:00
usr
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MAINTAINERS Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2018-11-07 09:05:58 -08:00
Makefile Linux 4.20-rc1 2018-11-04 15:37:52 -08:00
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.

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.