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(parent: 8f26e0b) | patch
mm: clarify why we avoid page_mapcount() for slab pages in dump_page()
authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Sat, 8 Oct 2016 00:01:40 +0000 (17:01 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 8 Oct 2016 01:46:29 +0000 (18:46 -0700)
commit9996f05eac09815121bb718249f21914a667791f
tree5895100f41462c5aa2c68a8b992ba2f2845b134btree | snapshot (tar.gz zip)
parent8f26e0b176f3484c49d55d88fe6083a9cf9ff443commit | diff
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>
mm/debug.c diff | blob | blame | history