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(parent: 2847cf9) | patch
mm/rmap: calculate page offset when needed
authorDavidlohr Bueso <dave@stgolabs.net>
Sat, 13 Dec 2014 00:55:04 +0000 (16:55 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 13 Dec 2014 20:42:46 +0000 (12:42 -0800)
commitb258d860652934b5e014408302335430b81bd7ce
tree2c6735a682f865dec8cb85504b4667fe219112dctree | snapshot (tar.gz zip)
parent2847cf95c68fa5fa391c58a669e761c4b0c8fc57commit | diff
mm/rmap: calculate page offset when needed

Call page_to_pgoff() to get the page offset once we are sure we actually
need it, and any very obvious initial function checks have passed.
Trivial micro-optimization, and potentially save some cycles.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/rmap.c diff | blob | blame | history