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authorLinus Torvalds <torvalds@linux-foundation.org>2018-10-27 05:33:41 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-27 05:33:41 +0300
commit345671ea0f9258f410eb057b9ced9cefbbe5dc78 (patch)
treefe97ba3d27679789e6aa34e39b002ee64ce25412 /Documentation/admin-guide/kernel-parameters.txt
parent4904008165c8a1c48602b8316139691b8c735e6e (diff)
parent22146c3ce98962436e401f7b7016a6f664c9ffb5 (diff)
downloadlinux-345671ea0f9258f410eb057b9ced9cefbbe5dc78.tar.xz
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - a few misc things - ocfs2 updates - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (132 commits) hugetlbfs: dirty pages as they are added to pagecache mm: export add_swap_extent() mm: split SWP_FILE into SWP_ACTIVATED and SWP_FS tools/testing/selftests/vm/map_fixed_noreplace.c: add test for MAP_FIXED_NOREPLACE mm: thp: relocate flush_cache_range() in migrate_misplaced_transhuge_page() mm: thp: fix mmu_notifier in migrate_misplaced_transhuge_page() mm: thp: fix MADV_DONTNEED vs migrate_misplaced_transhuge_page race condition mm/kasan/quarantine.c: make quarantine_lock a raw_spinlock_t mm/gup: cache dev_pagemap while pinning pages Revert "x86/e820: put !E820_TYPE_RAM regions into memblock.reserved" mm: return zero_resv_unavail optimization mm: zero remaining unavailable struct pages tools/testing/selftests/vm/gup_benchmark.c: add MAP_HUGETLB option tools/testing/selftests/vm/gup_benchmark.c: add MAP_SHARED option tools/testing/selftests/vm/gup_benchmark.c: allow user specified file tools/testing/selftests/vm/gup_benchmark.c: fix 'write' flag usage mm/gup_benchmark.c: add additional pinning methods mm/gup_benchmark.c: time put_page() mm: don't raise MEMCG_OOM event due to failed high-order allocation mm/page-writeback.c: fix range_cyclic writeback vs writepages deadlock ...
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt12
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diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 47ca5cda0eef..b90fe3b6bc6c 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4851,6 +4851,18 @@
This is actually a boot loader parameter; the value is
passed to the kernel using a special protocol.
+ vm_debug[=options] [KNL] Available with CONFIG_DEBUG_VM=y.
+ May slow down system boot speed, especially when
+ enabled on systems with a large amount of memory.
+ All options are enabled by default, and this
+ interface is meant to allow for selectively
+ enabling or disabling specific virtual memory
+ debugging features.
+
+ Available options are:
+ P Enable page structure init time poisoning
+ - Disable all of the above options
+
vmalloc=nn[KMG] [KNL,BOOT] Forces the vmalloc area to have an exact
size of <nn>. This can be used to increase the
minimum size (128MB on x86). It can also be used to