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Retire vm_page_copy(). Its reason for being ended when peter@ modified

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pmap_copy_page() et al. to accept a vm_page_t rather than a physical
address.  Also, this change will facilitate locking access to the vm page's
valid field.
This commit is contained in:
Alan Cox 2003-10-08 05:35:12 +00:00
parent ff76fc7f16
commit 669890eaeb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=120903
3 changed files with 7 additions and 20 deletions
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6
sys/vm/vm_fault.c
View File

@ -738,7 +738,8 @@ RetryFault:;
/*
* Oh, well, lets copy it.
*/
vm_page_copy(fs.m, fs.first_m);
pmap_copy_page(fs.m, fs.first_m);
fs.first_m->valid = VM_PAGE_BITS_ALL;
}
if (fs.m) {
/*
@ -1183,7 +1184,8 @@ vm_fault_copy_entry(dst_map, src_map, dst_entry, src_entry)
if (src_m == NULL)
panic("vm_fault_copy_wired: page missing");
vm_page_copy(src_m, dst_m);
pmap_copy_page(src_m, dst_m);
dst_m->valid = VM_PAGE_BITS_ALL;
/*
* Enter it in the pmap...

20
sys/vm/vm_page.c
View File

@ -372,18 +372,6 @@ vm_page_unhold(vm_page_t mem)
vm_page_free_toq(mem);
}
/*
* vm_page_copy:
*
* Copy one page to another
*/
void
vm_page_copy(vm_page_t src_m, vm_page_t dest_m)
{
pmap_copy_page(src_m, dest_m);
dest_m->valid = VM_PAGE_BITS_ALL;
}
/*
* vm_page_free:
*
@ -1742,11 +1730,9 @@ vm_page_cowfault(vm_page_t m)
vm_page_free(mnew);
vm_page_insert(m, object, pindex);
} else { /* clear COW & copy page */
if (so_zerocp_fullpage) {
mnew->valid = VM_PAGE_BITS_ALL;
} else {
vm_page_copy(m, mnew);
}
if (!so_zerocp_fullpage)
pmap_copy_page(m, mnew);
mnew->valid = VM_PAGE_BITS_ALL;
vm_page_dirty(mnew);
vm_page_flag_clear(mnew, PG_BUSY);
}

1
sys/vm/vm_page.h
View File

@ -342,7 +342,6 @@ void vm_page_io_start(vm_page_t m);
void vm_page_io_finish(vm_page_t m);
void vm_page_hold(vm_page_t mem);
void vm_page_unhold(vm_page_t mem);
void vm_page_copy(vm_page_t src_m, vm_page_t dest_m);
void vm_page_free(vm_page_t m);
void vm_page_free_zero(vm_page_t m);
int vm_page_sleep_if_busy(vm_page_t m, int also_m_busy, const char *msg);