Commit fa5e084e43eb ("vmscan: do not unconditionally treat zones that
fail zone_reclaim() as full") changed the return value of node_reclaim().
The original return value 0 means NODE_RECLAIM_SOME after this commit.
While the return value of node_reclaim() when CONFIG_NUMA is n is not
changed. This will leads to call zone_watermark_ok() again.
This patch fix the return value by adjusting to NODE_RECLAIM_NOSCAN. Since
it is not proper to include "mm/internal.h", just hard coded it.
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
---
This doesn't effect the system functionally. I am not sure we need to cc to
stable tree?
---
include/linux/swap.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/swap.h b/include/linux/swap.h
index d8a07a4f171d..2bd993280470 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -364,7 +364,7 @@ extern int node_reclaim(struct pglist_data *, gfp_t, unsigned int);
static inline int node_reclaim(struct pglist_data *pgdat, gfp_t mask,
unsigned int order)
{
- return 0;
+ return -2; /* NODE_RECLAIM_NOSCAN */
}
#endif
--
2.15.1
