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| author | Matthew Wilcox | 2018-06-08 02:08:39 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2018-06-08 02:34:37 +0200 |
| commit | 66a6ffd2af42b0bafaecccbd7c1c30d386de21ab (patch) | |
| tree | e84faf8badf6ca15db9380b8b743a675156be828 /mm/huge_memory.c | |
| parent | mm: move _refcount out of struct page union (diff) | |
| download | kernel-qcow2-linux-66a6ffd2af42b0bafaecccbd7c1c30d386de21ab.tar.gz kernel-qcow2-linux-66a6ffd2af42b0bafaecccbd7c1c30d386de21ab.tar.xz kernel-qcow2-linux-66a6ffd2af42b0bafaecccbd7c1c30d386de21ab.zip | |
mm: combine first three unions in struct page
By combining these three one-word unions into one three-word union, we
make it easier for users to add their own multi-word fields to struct
page, as well as making it obvious that SLUB needs to keep its double-word
alignment for its freelist & counters.
No field moves position; verified with pahole.
Link: http://lkml.kernel.org/r/20180518194519.3820-8-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
0 files changed, 0 insertions, 0 deletions