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Remove unused function swap_pager_isswapped().

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Noted by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2017-07-19 17:28:46 +00:00
parent 2ad9a5011e
commit 9680bb9877
2 changed files with 0 additions and 38 deletions
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37
sys/vm/swap_pager.c
View File

@ -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)
{

1
sys/vm/swap_pager.h
View File

@ -82,7 +82,6 @@ void swap_pager_copy(vm_object_t, vm_object_t, vm_pindex_t, int);
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);