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Code Issues Releases Activity

Two changes to vm_pgmoveco():

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- Eliminate an initialized but unused variable.
 - Eliminate an unnecessary call to clear the page's PG_BUSY flag.  (The
   call to vm_page_rename() already clears the page's PG_BUSY flag through
   its call to vm_page_remove().)
This commit is contained in:
Alan Cox 2004-11-05 06:52:29 +00:00
parent 34d9e6fdae
commit 1ac60dbce9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=137244
1 changed files with 1 additions and 3 deletions
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4
sys/kern/kern_subr.c
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@ -76,7 +76,7 @@ vm_pgmoveco(vm_map_t mapa, vm_object_t srcobj, vm_offset_t kaddr,
vm_page_t kern_pg, user_pg;
vm_object_t uobject;
vm_map_entry_t entry;
vm_pindex_t upindex, kpindex;
vm_pindex_t upindex;
vm_prot_t prot;
boolean_t wired;
@ -112,9 +112,7 @@ vm_pgmoveco(vm_map_t mapa, vm_object_t srcobj, vm_offset_t kaddr,
else
panic("vm_pgmoveco: renaming busy page");
}
kpindex = kern_pg->pindex;
vm_page_rename(kern_pg, uobject, upindex);
vm_page_flag_clear(kern_pg, PG_BUSY);
kern_pg->valid = VM_PAGE_BITS_ALL;
vm_page_unlock_queues();
VM_OBJECT_UNLOCK(uobject);