tree 5895100f41462c5aa2c68a8b992ba2f2845b134b
parent 8f26e0b176f3484c49d55d88fe6083a9cf9ff443
author Kirill A. Shutemov <kirill.shutemov@linux.intel.com> 1475884900 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1475891189 -0700

mm: clarify why we avoid page_mapcount() for slab pages in dump_page()

Let's add comment on why we skip page_mapcount() for sl[aou]b pages.

Link: http://lkml.kernel.org/r/20160922105532.GB24593@node
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>