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mm/vmstat: Add functions to account folio statistics

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Allow page counters to be more readily modified by callers which have
a folio.  Name these wrappers with 'stat' instead of 'state' as requested
by Linus here:
https://lore.kernel.org/linux-mm/CAHk-=wj847SudR-kt+46fT3+xFFgiwpgThvm7DJWGdi4cVrbnQ@mail.gmail.com/
No change to generated code.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
This commit is contained in:
Matthew Wilcox (Oracle) 2021-01-18 08:14:00 -05:00
parent 32b8fc4865
commit a53e17e4e9
1 changed files with 107 additions and 0 deletions
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107
include/linux/vmstat.h
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@ -415,6 +415,78 @@ static inline void drain_zonestat(struct zone *zone,
struct per_cpu_zonestat *pzstats) { }
#endif /* CONFIG_SMP */
static inline void __zone_stat_mod_folio(struct folio *folio,
enum zone_stat_item item, long nr)
{
__mod_zone_page_state(folio_zone(folio), item, nr);
}
static inline void __zone_stat_add_folio(struct folio *folio,
enum zone_stat_item item)
{
__mod_zone_page_state(folio_zone(folio), item, folio_nr_pages(folio));
}
static inline void __zone_stat_sub_folio(struct folio *folio,
enum zone_stat_item item)
{
__mod_zone_page_state(folio_zone(folio), item, -folio_nr_pages(folio));
}
static inline void zone_stat_mod_folio(struct folio *folio,
enum zone_stat_item item, long nr)
{
mod_zone_page_state(folio_zone(folio), item, nr);
}
static inline void zone_stat_add_folio(struct folio *folio,
enum zone_stat_item item)
{
mod_zone_page_state(folio_zone(folio), item, folio_nr_pages(folio));
}
static inline void zone_stat_sub_folio(struct folio *folio,
enum zone_stat_item item)
{
mod_zone_page_state(folio_zone(folio), item, -folio_nr_pages(folio));
}
static inline void __node_stat_mod_folio(struct folio *folio,
enum node_stat_item item, long nr)
{
__mod_node_page_state(folio_pgdat(folio), item, nr);
}
static inline void __node_stat_add_folio(struct folio *folio,
enum node_stat_item item)
{
__mod_node_page_state(folio_pgdat(folio), item, folio_nr_pages(folio));
}
static inline void __node_stat_sub_folio(struct folio *folio,
enum node_stat_item item)
{
__mod_node_page_state(folio_pgdat(folio), item, -folio_nr_pages(folio));
}
static inline void node_stat_mod_folio(struct folio *folio,
enum node_stat_item item, long nr)
{
mod_node_page_state(folio_pgdat(folio), item, nr);
}
static inline void node_stat_add_folio(struct folio *folio,
enum node_stat_item item)
{
mod_node_page_state(folio_pgdat(folio), item, folio_nr_pages(folio));
}
static inline void node_stat_sub_folio(struct folio *folio,
enum node_stat_item item)
{
mod_node_page_state(folio_pgdat(folio), item, -folio_nr_pages(folio));
}
static inline void __mod_zone_freepage_state(struct zone *zone, int nr_pages,
int migratetype)
{
@ -543,6 +615,24 @@ static inline void __dec_lruvec_page_state(struct page *page,
__mod_lruvec_page_state(page, idx, -1);
}
static inline void __lruvec_stat_mod_folio(struct folio *folio,
enum node_stat_item idx, int val)
{
__mod_lruvec_page_state(&folio->page, idx, val);
}
static inline void __lruvec_stat_add_folio(struct folio *folio,
enum node_stat_item idx)
{
__lruvec_stat_mod_folio(folio, idx, folio_nr_pages(folio));
}
static inline void __lruvec_stat_sub_folio(struct folio *folio,
enum node_stat_item idx)
{
__lruvec_stat_mod_folio(folio, idx, -folio_nr_pages(folio));
}
static inline void inc_lruvec_page_state(struct page *page,
enum node_stat_item idx)
{
@ -555,4 +645,21 @@ static inline void dec_lruvec_page_state(struct page *page,
mod_lruvec_page_state(page, idx, -1);
}
static inline void lruvec_stat_mod_folio(struct folio *folio,
enum node_stat_item idx, int val)
{
mod_lruvec_page_state(&folio->page, idx, val);
}
static inline void lruvec_stat_add_folio(struct folio *folio,
enum node_stat_item idx)
{
lruvec_stat_mod_folio(folio, idx, folio_nr_pages(folio));
}
static inline void lruvec_stat_sub_folio(struct folio *folio,
enum node_stat_item idx)
{
lruvec_stat_mod_folio(folio, idx, -folio_nr_pages(folio));
}
#endif /* _LINUX_VMSTAT_H */