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Jens Axboe 394918ebb8 io_uring: enable use of bio alloc cache 
Mark polled IO as being safe for dipping into the bio allocation
cache, in case the targeted bio_set has it enabled.

This brings an IOPOLL gen2 Optane QD=128 workload from ~3.2M IOPS to
~3.5M IOPS.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-08-23 13:44:55 -06:00
arch
Merge tag 'powerpc-5.14-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2021-08-22 09:49:31 -07:00
block
block: clear BIO_PERCPU_CACHE flag if polling isn't supported
2021-08-23 13:44:51 -06:00
certs
Merge tag 'kbuild-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2021-05-08 10:00:11 -07:00
crypto
crypto: drbg - select SHA512
2021-07-16 15:49:31 +08:00
Documentation
Merge tag 'riscv-for-linus-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2021-08-21 11:04:26 -07:00
drivers
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
2021-08-21 11:27:16 -07:00
fs
io_uring: enable use of bio alloc cache
2021-08-23 13:44:55 -06:00
include
bio: add allocation cache abstraction
2021-08-23 13:44:43 -06:00
init
init: Suppress wrong warning for bootconfig cmdline parameter
2021-08-12 13:35:57 -04:00
ipc
Merge branch 'akpm' (patches from Andrew)
2021-07-02 12:08:10 -07:00
kernel
Merge tag 'net-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2021-08-19 12:33:43 -07:00
lib
lib: use PFN_PHYS() in devmem_is_allowed()
2021-08-13 14:09:32 -10:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
hugetlb: don't pass page cache pages to restore_reserve_on_error
2021-08-20 11:31:42 -07:00
net
mptcp: full fully established support after ADD_ADDR
2021-08-19 12:16:54 +01:00
samples
Merge tag 'net-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2021-07-14 09:24:32 -07:00
scripts
Merge tag 'kbuild-fixes-v5.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2021-08-07 10:03:02 -07:00
security
bpf: Add lockdown check for probe_write_user helper
2021-08-10 10:10:10 +02:00
sound
Merge tag 'sound-5.14-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
2021-08-20 12:31:10 -07:00
tools
Merge tag 'net-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2021-08-19 12:33:43 -07:00
usr
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +09:00
virt
KVM: Do not leak memory for duplicate debugfs directories
2021-08-04 06:02:03 -04:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
Merge tag 'm68k-for-v5.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
2021-06-28 14:01:03 -07:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: move Murali Karicheri to credits
2021-04-29 15:47:30 -07:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
Merge branch 'akpm' (patches from Andrew)
2021-08-20 13:08:56 -07:00
Makefile
Linux 5.14-rc7
2021-08-22 14:24:56 -07:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

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.
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