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mm, pagevec: rename pagevec drained field

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According to Vlastimil Babka, the drained field in pagevec is
potentially misleading because it might be interpreted as draining this
pagevec instead of the percpu lru pagevecs.  Rename the field for
clarity.

Link: http://lkml.kernel.org/r/20171019093346.ylahzdpzmoriyf4v@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mel Gorman 2017-11-15 17:38:10 -08:00 committed by Linus Torvalds
parent 0fac3ba527
commit 7f0b5fb953
2 changed files with 4 additions and 4 deletions
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4
include/linux/pagevec.h
View File

@ -17,7 +17,7 @@ struct address_space;
struct pagevec { struct pagevec {
unsigned long nr; unsigned long nr;
bool drained; bool percpu_pvec_drained;
struct page *pages[PAGEVEC_SIZE]; struct page *pages[PAGEVEC_SIZE];
}; };
@ -53,7 +53,7 @@ static inline unsigned pagevec_lookup_tag(struct pagevec *pvec,
static inline void pagevec_init(struct pagevec *pvec) static inline void pagevec_init(struct pagevec *pvec)
{ {
pvec->nr = 0; pvec->nr = 0;
pvec->drained = false; pvec->percpu_pvec_drained = false;
} }
static inline void pagevec_reinit(struct pagevec *pvec) static inline void pagevec_reinit(struct pagevec *pvec)

4
mm/swap.c
View File

@ -833,9 +833,9 @@ EXPORT_SYMBOL(release_pages);
*/ */
void __pagevec_release(struct pagevec *pvec) void __pagevec_release(struct pagevec *pvec)
{ {
if (!pvec->drained) { if (!pvec->percpu_pvec_drained) {
lru_add_drain(); lru_add_drain();
pvec->drained = true; pvec->percpu_pvec_drained = true;
} }
release_pages(pvec->pages, pagevec_count(pvec)); release_pages(pvec->pages, pagevec_count(pvec));
pagevec_reinit(pvec); pagevec_reinit(pvec);