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authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 23:38:01 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 23:38:01 +0200
commitd42f323a7df0b298c07313db00b44b78555ca8e6 (patch)
treee9ac2b9f20fed683ff78b294c3792acb157787e5 /Documentation/vm
parentMerge tag 'pinctrl-v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
parentmm/memory-failure: unnecessary amount of unmapping (diff)
downloadlinux-d42f323a7df0b298c07313db00b44b78555ca8e6.tar.xz
linux-d42f323a7df0b298c07313db00b44b78555ca8e6.zip
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "A few misc subsystems and some of MM. 175 patches. Subsystems affected by this patch series: ia64, kbuild, scripts, sh, ocfs2, kfifo, vfs, kernel/watchdog, and mm (slab-generic, slub, kmemleak, debug, pagecache, msync, gup, memremap, memcg, pagemap, mremap, dma, sparsemem, vmalloc, documentation, kasan, initialization, pagealloc, and memory-failure)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (175 commits) mm/memory-failure: unnecessary amount of unmapping mm/mmzone.h: fix existing kernel-doc comments and link them to core-api mm: page_alloc: ignore init_on_free=1 for debug_pagealloc=1 net: page_pool: use alloc_pages_bulk in refill code path net: page_pool: refactor dma_map into own function page_pool_dma_map SUNRPC: refresh rq_pages using a bulk page allocator SUNRPC: set rq_page_end differently mm/page_alloc: inline __rmqueue_pcplist mm/page_alloc: optimize code layout for __alloc_pages_bulk mm/page_alloc: add an array-based interface to the bulk page allocator mm/page_alloc: add a bulk page allocator mm/page_alloc: rename alloced to allocated mm/page_alloc: duplicate include linux/vmalloc.h mm, page_alloc: avoid page_to_pfn() in move_freepages() mm/Kconfig: remove default DISCONTIGMEM_MANUAL mm: page_alloc: dump migrate-failed pages mm/mempolicy: fix mpol_misplaced kernel-doc mm/mempolicy: rewrite alloc_pages_vma documentation mm/mempolicy: rewrite alloc_pages documentation mm/mempolicy: rename alloc_pages_current to alloc_pages ...
Diffstat (limited to 'Documentation/vm')
-rw-r--r--Documentation/vm/page_owner.rst2
-rw-r--r--Documentation/vm/transhuge.rst5
2 files changed, 1 insertions, 6 deletions
diff --git a/Documentation/vm/page_owner.rst b/Documentation/vm/page_owner.rst
index 4e67c2e9bbed..2175465c9bf2 100644
--- a/Documentation/vm/page_owner.rst
+++ b/Documentation/vm/page_owner.rst
@@ -47,7 +47,7 @@ size change due to this facility.
text data bss dec hex filename
48800 2445 644 51889 cab1 mm/page_alloc.o
- 6574 108 29 6711 1a37 mm/page_owner.o
+ 6662 108 29 6799 1a8f mm/page_owner.o
1025 8 8 1041 411 mm/page_ext.o
Although, roughly, 8 KB code is added in total, page_alloc.o increase by
diff --git a/Documentation/vm/transhuge.rst b/Documentation/vm/transhuge.rst
index 0ed23e59abe5..216db1d67d04 100644
--- a/Documentation/vm/transhuge.rst
+++ b/Documentation/vm/transhuge.rst
@@ -53,11 +53,6 @@ prevent the page from being split by anyone.
of handling GUP on hugetlbfs will also work fine on transparent
hugepage backed mappings.
-In case you can't handle compound pages if they're returned by
-follow_page, the FOLL_SPLIT bit can be specified as a parameter to
-follow_page, so that it will split the hugepages before returning
-them.
-
Graceful fallback
=================