Revision 5e714bf1713b4b096d20ec75c13880b7086964bd authored by Linus Torvalds on 14 October 2022, 19:28:43 UTC, committed by Linus Torvalds on 14 October 2022, 19:28:43 UTC
Pull more MM updates from Andrew Morton: - fix a race which causes page refcounting errors in ZONE_DEVICE pages (Alistair Popple) - fix userfaultfd test harness instability (Peter Xu) - various other patches in MM, mainly fixes * tag 'mm-stable-2022-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (29 commits) highmem: fix kmap_to_page() for kmap_local_page() addresses mm/page_alloc: fix incorrect PGFREE and PGALLOC for high-order page mm/selftest: uffd: explain the write missing fault check mm/hugetlb: use hugetlb_pte_stable in migration race check mm/hugetlb: fix race condition of uffd missing/minor handling zram: always expose rw_page LoongArch: update local TLB if PTE entry exists mm: use update_mmu_tlb() on the second thread kasan: fix array-bounds warnings in tests hmm-tests: add test for migrate_device_range() nouveau/dmem: evict device private memory during release nouveau/dmem: refactor nouveau_dmem_fault_copy_one() mm/migrate_device.c: add migrate_device_range() mm/migrate_device.c: refactor migrate_vma and migrate_deivce_coherent_page() mm/memremap.c: take a pgmap reference on page allocation mm: free device private pages have zero refcount mm/memory.c: fix race when faulting a device private page mm/damon: use damon_sz_region() in appropriate place mm/damon: move sz_damon_region to damon_sz_region lib/test_meminit: add checks for the allocation functions ...
checkversion.pl
#! /usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0
#
# checkversion finds uses of all macros in <linux/version.h>
# where the source files do not #include <linux/version.h>; or cases
# of including <linux/version.h> where it is not needed.
# Copyright (C) 2003, Randy Dunlap <rdunlap@infradead.org>
use strict;
$| = 1;
my $debugging;
foreach my $file (@ARGV) {
next if $file =~ "include/generated/uapi/linux/version\.h";
next if $file =~ "usr/include/linux/version\.h";
# Open this file.
open( my $f, '<', $file )
or die "Can't open $file: $!\n";
# Initialize variables.
my ($fInComment, $fInString, $fUseVersion);
my $iLinuxVersion = 0;
while (<$f>) {
# Strip comments.
$fInComment && (s+^.*?\*/+ +o ? ($fInComment = 0) : next);
m+/\*+o && (s+/\*.*?\*/+ +go, (s+/\*.*$+ +o && ($fInComment = 1)));
# Pick up definitions.
if ( m/^\s*#/o ) {
$iLinuxVersion = $. if m/^\s*#\s*include\s*"linux\/version\.h"/o;
}
# Strip strings.
$fInString && (s+^.*?"+ +o ? ($fInString = 0) : next);
m+"+o && (s+".*?"+ +go, (s+".*$+ +o && ($fInString = 1)));
# Pick up definitions.
if ( m/^\s*#/o ) {
$iLinuxVersion = $. if m/^\s*#\s*include\s*<linux\/version\.h>/o;
}
# Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION,
# LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL, LINUX_VERSION_SUBLEVEL
if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/) ||
($_ =~ /LINUX_VERSION_MAJOR/) || ($_ =~ /LINUX_VERSION_PATCHLEVEL/) ||
($_ =~ /LINUX_VERSION_SUBLEVEL/)) {
$fUseVersion = 1;
last if $iLinuxVersion;
}
}
# Report used version IDs without include?
if ($fUseVersion && ! $iLinuxVersion) {
print "$file: $.: need linux/version.h\n";
}
# Report superfluous includes.
if ($iLinuxVersion && ! $fUseVersion) {
print "$file: $iLinuxVersion linux/version.h not needed.\n";
}
# debug: report OK results:
if ($debugging) {
if ($iLinuxVersion && $fUseVersion) {
print "$file: version use is OK ($iLinuxVersion)\n";
}
if (! $iLinuxVersion && ! $fUseVersion) {
print "$file: version use is OK (none)\n";
}
}
close($f);
}
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