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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 21:39:33 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 21:39:33 +0300
commit81e11336d97e7a4c25a65c302ef2bf9cd9808ed4 (patch)
tree44e069e0bb26068137a1bda7ca5125c5b068b4ab /Documentation/vm/memory-model.rst
parent5631c5e0eb9035d92ceb20fcd9cdb7779a3f5cc7 (diff)
parent912c05720f00d039103d356a59c37dc7c3995e01 (diff)
downloadlinux-81e11336d97e7a4c25a65c302ef2bf9cd9808ed4.tar.xz
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: - a few MM hotfixes - kthread, tools, scripts, ntfs and ocfs2 - some of MM Subsystems affected by this patch series: kthread, tools, scripts, ntfs, ocfs2 and mm (hofixes, pagealloc, slab-generic, slab, slub, kcsan, debug, pagecache, gup, swap, shmem, memcg, pagemap, mremap, mincore, sparsemem, vmalloc, kasan, pagealloc, hugetlb and vmscan). * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (162 commits) mm: vmscan: consistent update to pgrefill mm/vmscan.c: fix typo khugepaged: khugepaged_test_exit() check mmget_still_valid() khugepaged: retract_page_tables() remember to test exit khugepaged: collapse_pte_mapped_thp() protect the pmd lock khugepaged: collapse_pte_mapped_thp() flush the right range mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible mm: thp: replace HTTP links with HTTPS ones mm/page_alloc: fix memalloc_nocma_{save/restore} APIs mm/page_alloc.c: skip setting nodemask when we are in interrupt mm/page_alloc: fallbacks at most has 3 elements mm/page_alloc: silence a KASAN false positive mm/page_alloc.c: remove unnecessary end_bitidx for [set|get]_pfnblock_flags_mask() mm/page_alloc.c: simplify pageblock bitmap access mm/page_alloc.c: extract the common part in pfn_to_bitidx() mm/page_alloc.c: replace the definition of NR_MIGRATETYPE_BITS with PB_migratetype_bits mm/shuffle: remove dynamic reconfiguration mm/memory_hotplug: document why shuffle_zone() is relevant mm/page_alloc: remove nr_free_pagecache_pages() mm: remove vm_total_pages ...
Diffstat (limited to 'Documentation/vm/memory-model.rst')
-rw-r--r--Documentation/vm/memory-model.rst9
1 files changed, 3 insertions, 6 deletions
diff --git a/Documentation/vm/memory-model.rst b/Documentation/vm/memory-model.rst
index cc65bc85d260..769449734573 100644
--- a/Documentation/vm/memory-model.rst
+++ b/Documentation/vm/memory-model.rst
@@ -141,11 +141,8 @@ sections:
`mem_section` objects and the number of rows is calculated to fit
all the memory sections.
-The architecture setup code should call :c:func:`memory_present` for
-each active memory range or use :c:func:`memblocks_present` or
-:c:func:`sparse_memory_present_with_active_regions` wrappers to
-initialize the memory sections. Next, the actual memory maps should be
-set up using :c:func:`sparse_init`.
+The architecture setup code should call sparse_init() to
+initialize the memory sections and the memory maps.
With SPARSEMEM there are two possible ways to convert a PFN to the
corresponding `struct page` - a "classic sparse" and "sparse
@@ -178,7 +175,7 @@ for persistent memory devices in pre-allocated storage on those
devices. This storage is represented with :c:type:`struct vmem_altmap`
that is eventually passed to vmemmap_populate() through a long chain
of function calls. The vmemmap_populate() implementation may use the
-`vmem_altmap` along with :c:func:`altmap_alloc_block_buf` helper to
+`vmem_altmap` along with :c:func:`vmemmap_alloc_block_buf` helper to
allocate memory map on the persistent memory device.
ZONE_DEVICE