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Remove some unused functions.

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The previous series of patches orphaned some vm_page functions, so
remove them.

Reviewed by:	dougm, kib
Sponsored by:	Netflix, Intel
Differential Revision:	https://reviews.freebsd.org/D22886
This commit is contained in:
Mark Johnston 2019-12-28 19:04:29 +00:00
parent dc71caa037
commit 727150ff03
2 changed files with 0 additions and 73 deletions
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46
sys/vm/vm_page.c
View File

@ -3661,52 +3661,6 @@ vm_page_enqueue(vm_page_t m, uint8_t queue)
vm_page_pqbatch_submit(m, queue);
}
/*
* vm_page_requeue: [ internal use only ]
*
* Schedule a requeue of the given page.
*
* The page must be locked.
*/
void
vm_page_requeue(vm_page_t m)
{
vm_page_assert_locked(m);
KASSERT(vm_page_queue(m) != PQ_NONE,
("%s: page %p is not logically enqueued", __func__, m));
KASSERT(m->ref_count > 0,
("%s: page %p does not carry any references", __func__, m));
if ((m->a.flags & PGA_REQUEUE) == 0)
vm_page_aflag_set(m, PGA_REQUEUE);
vm_page_pqbatch_submit(m, atomic_load_8(&m->a.queue));
}
/*
* vm_page_swapqueue: [ internal use only ]
*
* Move the page from one queue to another, or to the tail of its
* current queue, in the face of a possible concurrent free of the
* page.
*/
void
vm_page_swapqueue(vm_page_t m, uint8_t oldq, uint8_t newq)
{
vm_page_astate_t new, old;
old = vm_page_astate_load(m);
do {
if (old.queue != oldq || (old.flags & PGA_DEQUEUE) != 0)
return;
new = old;
new.flags |= PGA_REQUEUE;
new.queue = newq;
} while (!vm_page_pqstate_commit_dequeue(m, &old, new));
vm_page_pqbatch_submit(m, newq);
}
/*
* vm_page_free_prep:
*

27
sys/vm/vm_page.h
View File

@ -649,7 +649,6 @@ bool vm_page_remove_xbusy(vm_page_t);
int vm_page_rename(vm_page_t, vm_object_t, vm_pindex_t);
void vm_page_replace(vm_page_t mnew, vm_object_t object,
vm_pindex_t pindex, vm_page_t mold);
void vm_page_requeue(vm_page_t m);
int vm_page_sbusied(vm_page_t m);
vm_page_t vm_page_scan_contig(u_long npages, vm_page_t m_start,
vm_page_t m_end, u_long alignment, vm_paddr_t boundary, int options);
@ -659,7 +658,6 @@ int vm_page_sleep_if_busy(vm_page_t m, const char *msg);
int vm_page_sleep_if_xbusy(vm_page_t m, const char *msg);
vm_offset_t vm_page_startup(vm_offset_t vaddr);
void vm_page_sunbusy(vm_page_t m);
void vm_page_swapqueue(vm_page_t m, uint8_t oldq, uint8_t newq);
bool vm_page_try_remove_all(vm_page_t m);
bool vm_page_try_remove_write(vm_page_t m);
int vm_page_trysbusy(vm_page_t m);
@ -835,31 +833,6 @@ vm_page_aflag_set(vm_page_t m, uint16_t bits)
atomic_set_32(addr, val);
}
/*
* Atomically update the queue state of the page. The operation fails if
* any of the queue flags in "fflags" are set or if the "queue" field of
* the page does not match the expected value; if the operation is
* successful, the flags in "nflags" are set and all other queue state
* flags are cleared.
*/
static inline bool
vm_page_pqstate_cmpset(vm_page_t m, uint32_t oldq, uint32_t newq,
uint32_t fflags, uint32_t nflags)
{
vm_page_astate_t new, old;
old = vm_page_astate_load(m);
do {
if ((old.flags & fflags) != 0 || old.queue != oldq)
return (false);
new = old;
new.flags = (new.flags & ~PGA_QUEUE_OP_MASK) | nflags;
new.queue = newq;
} while (!vm_page_astate_fcmpset(m, &old, new));
return (true);
}
/*
* vm_page_dirty:
*