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Ansify vm/vm_pager.c. Style.

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Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2016-12-31 19:30:22 +00:00
parent d35974ba4a
commit 03302b1380
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=310982
1 changed files with 22 additions and 36 deletions
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58
sys/vm/vm_pager.c
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@ -109,43 +109,35 @@ static vm_object_t
dead_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
vm_ooffset_t off, struct ucred *cred)
{
return NULL;
return (NULL);
}
static void
dead_pager_putpages(object, m, count, flags, rtvals)
vm_object_t object;
vm_page_t *m;
int count;
int flags;
int *rtvals;
dead_pager_putpages(vm_object_t object, vm_page_t *m, int count,
int flags, int *rtvals)
{
int i;
for (i = 0; i < count; i++) {
for (i = 0; i < count; i++)
rtvals[i] = VM_PAGER_AGAIN;
}
}
static int
dead_pager_haspage(object, pindex, prev, next)
vm_object_t object;
vm_pindex_t pindex;
int *prev;
int *next;
dead_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *prev, int *next)
{
if (prev)
if (prev != NULL)
*prev = 0;
if (next)
if (next != NULL)
*next = 0;
return FALSE;
return (FALSE);
}
static void
dead_pager_dealloc(object)
vm_object_t object;
dead_pager_dealloc(vm_object_t object)
{
return;
}
static struct pagerops deadpagerops = {
@ -181,7 +173,7 @@ static int bswneeded;
vm_offset_t swapbkva; /* swap buffers kva */
void
vm_pager_init()
vm_pager_init(void)
{
struct pagerops **pgops;
@ -191,11 +183,11 @@ vm_pager_init()
*/
for (pgops = pagertab; pgops < &pagertab[nitems(pagertab)]; pgops++)
if ((*pgops)->pgo_init != NULL)
(*(*pgops)->pgo_init) ();
(*(*pgops)->pgo_init)();
}
void
vm_pager_bufferinit()
vm_pager_bufferinit(void)
{
struct buf *bp;
int i;
@ -232,7 +224,7 @@ vm_pager_allocate(objtype_t type, void *handle, vm_ooffset_t size,
ops = pagertab[type];
if (ops)
ret = (*ops->pgo_alloc) (handle, size, prot, off, cred);
ret = (*ops->pgo_alloc)(handle, size, prot, off, cred);
else
ret = NULL;
return (ret);
@ -242,8 +234,7 @@ vm_pager_allocate(objtype_t type, void *handle, vm_ooffset_t size,
* The object must be locked.
*/
void
vm_pager_deallocate(object)
vm_object_t object;
vm_pager_deallocate(vm_object_t object)
{
VM_OBJECT_ASSERT_WLOCKED(object);
@ -366,12 +357,13 @@ vm_pager_object_lookup(struct pagerlst *pg_list, void *handle)
static void
initpbuf(struct buf *bp)
{
KASSERT(bp->b_bufobj == NULL, ("initpbuf with bufobj"));
KASSERT(bp->b_vp == NULL, ("initpbuf with vp"));
bp->b_rcred = NOCRED;
bp->b_wcred = NOCRED;
bp->b_qindex = 0; /* On no queue (QUEUE_NONE) */
bp->b_kvabase = (caddr_t) (MAXPHYS * (bp - swbuf)) + swapbkva;
bp->b_kvabase = (caddr_t)(MAXPHYS * (bp - swbuf)) + swapbkva;
bp->b_data = bp->b_kvabase;
bp->b_kvasize = MAXPHYS;
bp->b_flags = 0;
@ -404,9 +396,8 @@ getpbuf(int *pfreecnt)
struct buf *bp;
mtx_lock(&pbuf_mtx);
for (;;) {
if (pfreecnt) {
if (pfreecnt != NULL) {
while (*pfreecnt == 0) {
msleep(pfreecnt, &pbuf_mtx, PVM, "wswbuf0", 0);
}
@ -424,9 +415,8 @@ getpbuf(int *pfreecnt)
if (pfreecnt)
--*pfreecnt;
mtx_unlock(&pbuf_mtx);
initpbuf(bp);
return bp;
return (bp);
}
/*
@ -446,14 +436,10 @@ trypbuf(int *pfreecnt)
return NULL;
}
TAILQ_REMOVE(&bswlist, bp, b_freelist);
--*pfreecnt;
mtx_unlock(&pbuf_mtx);
initpbuf(bp);
return bp;
return (bp);
}
/*