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Arjun Roy 8efd6f5b17 mm/memory.c: refactor insert_page to prepare for batched-lock insert
Add helper methods for vm_insert_page()/insert_page() to prepare for
vm_insert_pages(), which batch-inserts pages to reduce spinlock
operations when inserting multiple consecutive pages into the user page
table.

The intention of this patch-set is to reduce atomic ops for tcp zerocopy
receives, which normally hits the same spinlock multiple times
consecutively.

Signed-off-by: Arjun Roy <arjunroy@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David Miller <davem@davemloft.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Link: http://lkml.kernel.org/r/20200128025958.43490-1-arjunroy.kdev@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-10 15:36:21 -07:00
arch mm: hugetlb: optionally allocate gigantic hugepages using cma 2020-04-10 15:36:21 -07:00
block
certs
crypto
Documentation mm: hugetlb: optionally allocate gigantic hugepages using cma 2020-04-10 15:36:21 -07:00
drivers arm64 fixes: 2020-04-09 11:04:16 -07:00
fs ocfs2: no need try to truncate file beyond i_size 2020-04-10 15:36:21 -07:00
include mm: hugetlb: optionally allocate gigantic hugepages using cma 2020-04-10 15:36:21 -07:00
init arm64 fixes: 2020-04-09 11:04:16 -07:00
ipc
kernel Modules updates for v5.7 2020-04-09 12:52:34 -07:00
lib libnvdimm for 5.7 2020-04-08 21:03:40 -07:00
LICENSES
mm mm/memory.c: refactor insert_page to prepare for batched-lock insert 2020-04-10 15:36:21 -07:00
net The main items are: 2020-04-08 21:44:05 -07:00
samples
scripts
security
sound
tools powerpc updates for 5.7 #2 2020-04-09 11:01:42 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS libnvdimm for 5.7 2020-04-08 21:03:40 -07:00
Makefile
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.