Commit b6676de8 authored by Dave Hansen's avatar Dave Hansen Committed by Linus Torvalds
Browse files

mm/vmscan: move RECLAIM* bits to uapi header 

It is currently not obvious that the RECLAIM_* bits are part of the uapi
since they are defined in vmscan.c.  Move them to a uapi header to make it
obvious.

This should have no functional impact.

Link: https://lkml.kernel.org/r/20210219172557.08074910@viggo.jf.intel.com


Signed-off-by: default avatarDave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: default avatarBen Widawsky <ben.widawsky@intel.com>
Reviewed-by: default avatarOscar Salvador <osalvador@suse.de>
Acked-by: default avatarDavid Rientjes <rientjes@google.com>
Acked-by: default avatarChristoph Lameter <cl@linux.com>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Daniel Wagner <dwagner@suse.de>
Cc: "Tobin C. Harding" <tobin@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Qian Cai <cai@lca.pw>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f0fa9433

include/uapi/linux/mempolicy.h

+7 −0
Original line number Diff line number Diff line
@@ -64,5 +64,12 @@ enum { 
#define MPOL_F_MOF	(1 << 3) /* this policy wants migrate on fault */

#define MPOL_F_MORON	(1 << 4) /* Migrate On protnone Reference On Node */



/*

 * These bit locations are exposed in the vm.zone_reclaim_mode sysctl

 * ABI.  New bits are OK, but existing bits can never change.

 */

#define RECLAIM_ZONE	(1<<0)	/* Run shrink_inactive_list on the zone */

#define RECLAIM_WRITE	(1<<1)	/* Writeout pages during reclaim */

#define RECLAIM_UNMAP	(1<<2)	/* Unmap pages during reclaim */



#endif /* _UAPI_LINUX_MEMPOLICY_H */

mm/vmscan.c

+0 −8
Original line number Diff line number Diff line
@@ -4086,14 +4086,6 @@ module_init(kswapd_init) 
 */

int node_reclaim_mode __read_mostly;



/*

 * These bit locations are exposed in the vm.zone_reclaim_mode sysctl

 * ABI.  New bits are OK, but existing bits can never change.

 */

#define RECLAIM_ZONE  (1<<0)   /* Run shrink_inactive_list on the zone */

#define RECLAIM_WRITE (1<<1)   /* Writeout pages during reclaim */

#define RECLAIM_UNMAP (1<<2)   /* Unmap pages during reclaim */



/*

 * Priority for NODE_RECLAIM. This determines the fraction of pages

 * of a node considered for each zone_reclaim. 4 scans 1/16th of