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-rw-r--r--include/linux/mm.h13
1 files changed, 11 insertions, 2 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8e2f2cd821f7..32cfa9602d00 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1162,6 +1162,15 @@ static inline void sync_mm_rss(struct task_struct *task, struct mm_struct *mm)
#endif
/*
+ * This struct is used to pass information from page reclaim to the shrinkers.
+ * We consolidate the values for easier extention later.
+ */
+struct shrink_control {
+ unsigned long nr_scanned;
+ gfp_t gfp_mask;
+};
+
+/*
* A callback you can register to apply pressure to ageable caches.
*
* 'shrink' is passed a count 'nr_to_scan' and a 'gfpmask'. It should
@@ -1630,8 +1639,8 @@ int in_gate_area_no_mm(unsigned long addr);
int drop_caches_sysctl_handler(struct ctl_table *, int,
void __user *, size_t *, loff_t *);
-unsigned long shrink_slab(unsigned long scanned, gfp_t gfp_mask,
- unsigned long lru_pages);
+unsigned long shrink_slab(struct shrink_control *shrink,
+ unsigned long lru_pages);
#ifndef CONFIG_MMU
#define randomize_va_space 0