Fantastic! On Sat, 28 Dec 2019, Mark Johnston wrote:
Author: markj Date: Sat Dec 28 19:04:29 2019 New Revision: 356159 URL: https://svnweb.freebsd.org/changeset/base/356159 Log: Remove some unused functions. 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 Modified: head/sys/vm/vm_page.c head/sys/vm/vm_page.h Modified: head/sys/vm/vm_page.c ============================================================================== --- head/sys/vm/vm_page.c Sat Dec 28 19:04:15 2019 (r356158) +++ head/sys/vm/vm_page.c Sat Dec 28 19:04:29 2019 (r356159) @@ -3662,52 +3662,6 @@ vm_page_enqueue(vm_page_t m, uint8_t 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: * * Prepares the given page to be put on the free list, Modified: head/sys/vm/vm_page.h ============================================================================== --- head/sys/vm/vm_page.h Sat Dec 28 19:04:15 2019 (r356158) +++ head/sys/vm/vm_page.h Sat Dec 28 19:04:29 2019 (r356159) @@ -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); @@ -833,31 +831,6 @@ vm_page_aflag_set(vm_page_t m, uint16_t bits) addr = (void *)&m->a; val = bits << VM_PAGE_AFLAG_SHIFT; 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); } /*
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