svn commit: r321217 - head/sys/vm

[Konstantin Belousov]

Author: kib
Date: Wed Jul 19 17:28:46 2017
New Revision: 321217
URL: https://svnweb.freebsd.org/changeset/base/321217

Log:
  Remove unused function swap_pager_isswapped().
  
  Noted by:	alc
  Sponsored by:	The FreeBSD Foundation
  MFC after:	1 week

Modified:
  head/sys/vm/swap_pager.c
  head/sys/vm/swap_pager.h

Modified: head/sys/vm/swap_pager.c
==============================================================================
--- head/sys/vm/swap_pager.c	Wed Jul 19 16:54:34 2017	(r321216)
+++ head/sys/vm/swap_pager.c	Wed Jul 19 17:28:46 2017	(r321217)
@@ -1585,43 +1585,6 @@ swp_pager_async_iodone(struct buf *bp)
 	);
 }
 
-/*
- *	swap_pager_isswapped:
- *
- *	Return 1 if at least one page in the given object is paged
- *	out to the given swap device.
- *
- *	This routine may not sleep.
- */
-int
-swap_pager_isswapped(vm_object_t object, struct swdevt *sp)
-{
-	daddr_t index = 0;
-	int bcount;
-	int i;
-
-	VM_OBJECT_ASSERT_WLOCKED(object);
-	if (object->type != OBJT_SWAP)
-		return (0);
-
-	mtx_lock(&swhash_mtx);
-	for (bcount = 0; bcount < object->un_pager.swp.swp_bcount; bcount++) {
-		struct swblock *swap;
-
-		if ((swap = *swp_pager_hash(object, index)) != NULL) {
-			for (i = 0; i < SWAP_META_PAGES; ++i) {
-				if (swp_pager_isondev(swap->swb_pages[i], sp)) {
-					mtx_unlock(&swhash_mtx);
-					return (1);
-				}
-			}
-		}
-		index += SWAP_META_PAGES;
-	}
-	mtx_unlock(&swhash_mtx);
-	return (0);
-}
-
 int
 swap_pager_nswapdev(void)
 {

Modified: head/sys/vm/swap_pager.h
==============================================================================
--- head/sys/vm/swap_pager.h	Wed Jul 19 16:54:34 2017	(r321216)
+++ head/sys/vm/swap_pager.h	Wed Jul 19 17:28:46 2017	(r321217)
@@ -82,7 +82,6 @@ void swap_pager_copy(vm_object_t, vm_object_t, vm_pind
 vm_pindex_t swap_pager_find_least(vm_object_t object, vm_pindex_t pindex);
 void swap_pager_freespace(vm_object_t, vm_pindex_t, vm_size_t);
 void swap_pager_swap_init(void);
-int swap_pager_isswapped(vm_object_t, struct swdevt *);
 int swap_pager_nswapdev(void);
 int swap_pager_reserve(vm_object_t, vm_pindex_t, vm_size_t);
 void swap_pager_status(int *total, int *used);