frontswap_curr_pages is never called, so remove it.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
include/linux/frontswap.h | 1 -
mm/frontswap.c | 28 ----------------------------
2 files changed, 29 deletions(-)
diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
index d268d7bb65134..5205c2977b208 100644
--- a/include/linux/frontswap.h
+++ b/include/linux/frontswap.h
@@ -24,7 +24,6 @@ struct frontswap_ops {
};
extern void frontswap_register_ops(struct frontswap_ops *ops);
-extern unsigned long frontswap_curr_pages(void);
extern bool __frontswap_test(struct swap_info_struct *, pgoff_t);
extern void __frontswap_init(unsigned type, unsigned long *map);
diff --git a/mm/frontswap.c b/mm/frontswap.c
index a77ebba6101bd..af8f68d0e5cc0 100644
--- a/mm/frontswap.c
+++ b/mm/frontswap.c
@@ -330,34 +330,6 @@ void __frontswap_invalidate_area(unsigned type)
}
EXPORT_SYMBOL(__frontswap_invalidate_area);
-static unsigned long __frontswap_curr_pages(void)
-{
- unsigned long totalpages = 0;
- struct swap_info_struct *si = NULL;
-
- assert_spin_locked(&swap_lock);
- plist_for_each_entry(si, &swap_active_head, list)
- totalpages += atomic_read(&si->frontswap_pages);
- return totalpages;
-}
-
-/*
- * Count and return the number of frontswap pages across all
- * swap devices. This is exported so that backend drivers can
- * determine current usage without reading debugfs.
- */
-unsigned long frontswap_curr_pages(void)
-{
- unsigned long totalpages = 0;
-
- spin_lock(&swap_lock);
- totalpages = __frontswap_curr_pages();
- spin_unlock(&swap_lock);
-
- return totalpages;
-}
-EXPORT_SYMBOL(frontswap_curr_pages);
-
static int __init init_frontswap(void)
{
#ifdef CONFIG_DEBUG_FS
--
2.30.2
