On 08/25/2011 01:05 AM, KAMEZAWA Hiroyuki wrote: > On Tue, 23 Aug 2011 07:58:15 -0700 > Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> wrote: > >> From: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> >> Subject: [PATCH V7 2/4] mm: frontswap: core code >> >> This second patch of four in this frontswap series provides the core code >> for frontswap that interfaces between the hooks in the swap subsystem and >> a frontswap backend via frontswap_ops. >> >> Two new files are added: mm/frontswap.c and include/linux/frontswap.h >> >> Credits: Frontswap_ops design derived from Jeremy Fitzhardinge >> design for tmem; sysfs code modelled after mm/ksm.c >> >> [v7: rebase to 3.0-rc3] >> [v7: JBeulich@xxxxxxxxxx: new static inlines resolve to no-ops if not config'd] >> [v7: JBeulich@xxxxxxxxxx: avoid redundant shifts/divides for *_bit lib calls] >> [v6: rebase to 3.1-rc1] >> [v6: lliubbo@xxxxxxxxx: fix null pointer deref if vzalloc fails] >> [v6: konrad.wilk@xxxxxxxxx: various checks and code clarifications/comments] >> [v5: no change from v4] >> [v4: rebase to 2.6.39] >> Signed-off-by: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> >> Reviewed-by: Konrad Wilk <konrad.wilk@xxxxxxxxxx> >> Acked-by: Jan Beulich <JBeulich@xxxxxxxxxx> >> Acked-by: Seth Jennings <sjenning@xxxxxxxxxxxxxxxxxx> >> Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx> >> Cc: Hugh Dickins <hughd@xxxxxxxxxx> >> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> >> Cc: Nitin Gupta <ngupta@xxxxxxxxxx> >> Cc: Matthew Wilcox <matthew@xxxxxx> >> Cc: Chris Mason <chris.mason@xxxxxxxxxx> >> Cc: Rik Riel <riel@xxxxxxxxxx> >> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> >> <cut> > > > I'm sorry if I miss codes but.... is an implementation of frontswap.ops included > in this patch set ? Or how to test the work ? The zcache driver (in drivers/staging/zcache) is the one that registers frontswap ops. You can test frontswap by enabling CONFIG_FRONTSWAP and CONFIG_ZCACHE, and putting "zcache" in the kernel boot parameters. > > Thanks, > -Kame > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@xxxxxxxxx. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>