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Peter Xu 79fea6c654 mm/arm: use general page fault accounting
Use the general page fault accounting by passing regs into
handle_mm_fault().  It naturally solve the issue of multiple page fault
accounting when page fault retry happened.  To do this, we need to pass
the pt_regs pointer into __do_page_fault().

Fix PERF_COUNT_SW_PAGE_FAULTS perf event manually for page fault retries,
by moving it before taking mmap_sem.

Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/20200707225021.200906-5-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-12 10:58:03 -07:00
arch mm/arm: use general page fault accounting 2020-08-12 10:58:03 -07:00
block A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
certs
crypto mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
Documentation coredump: add %f for executable filename 2020-08-12 10:58:01 -07:00
drivers mm: do page fault accounting in handle_mm_fault 2020-08-12 10:58:02 -07:00
fs exec: move path_noexec() check earlier 2020-08-12 10:58:01 -07:00
include mm: do page fault accounting in handle_mm_fault 2020-08-12 10:58:02 -07:00
init A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
ipc ipc/shm.c: remove the superfluous break 2020-08-12 10:58:02 -07:00
kernel kcov: make some symbols static 2020-08-12 10:58:02 -07:00
lib lib/Kconfig.debug: fix typo in the help text of CONFIG_PANIC_TIMEOUT 2020-08-12 10:58:02 -07:00
LICENSES
mm mm: do page fault accounting in handle_mm_fault 2020-08-12 10:58:02 -07:00
net A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
samples Kbuild updates for v5.9 2020-08-09 14:10:26 -07:00
scripts scripts/gdb: fix python 3.8 SyntaxWarning 2020-08-12 10:58:02 -07:00
security mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
sound
tools selftests: kmod: use variable NAME in kmod_test_0001() 2020-08-12 10:58:01 -07:00
usr Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-07 13:29:39 -07:00
virt A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
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Kconfig
MAINTAINERS pci-v5.9-changes 2020-08-07 18:48:15 -07:00
Makefile ./Makefile: add debug option to enable function aligned on 32 bytes 2020-08-12 10:57:59 -07:00
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.