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Add page locking to pmap_mincore().

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Submitted (in part) by:	tjr@
This commit is contained in:
Alan Cox 2002-12-14 07:06:27 +00:00
parent 5df0c0ea08
commit 0ced3981d1
2 changed files with 40 additions and 24 deletions
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32
sys/amd64/amd64/pmap.c
View File

@ -3323,23 +3323,31 @@ pmap_mincore(pmap, addr)
*/
if (pte & PG_M)
val |= MINCORE_MODIFIED|MINCORE_MODIFIED_OTHER;
/*
* Modified by someone
*/
else if (m->dirty || pmap_is_modified(m))
val |= MINCORE_MODIFIED_OTHER;
else {
/*
* Modified by someone else
*/
vm_page_lock_queues();
if (m->dirty || pmap_is_modified(m))
val |= MINCORE_MODIFIED_OTHER;
vm_page_unlock_queues();
}
/*
* Referenced by us
*/
if (pte & PG_A)
val |= MINCORE_REFERENCED|MINCORE_REFERENCED_OTHER;
/*
* Referenced by someone
*/
else if ((m->flags & PG_REFERENCED) || pmap_ts_referenced(m)) {
val |= MINCORE_REFERENCED_OTHER;
vm_page_flag_set(m, PG_REFERENCED);
else {
/*
* Referenced by someone else
*/
vm_page_lock_queues();
if ((m->flags & PG_REFERENCED) ||
pmap_ts_referenced(m)) {
val |= MINCORE_REFERENCED_OTHER;
vm_page_flag_set(m, PG_REFERENCED);
}
vm_page_unlock_queues();
}
}
return val;

32
sys/i386/i386/pmap.c
View File

@ -3323,23 +3323,31 @@ pmap_mincore(pmap, addr)
*/
if (pte & PG_M)
val |= MINCORE_MODIFIED|MINCORE_MODIFIED_OTHER;
/*
* Modified by someone
*/
else if (m->dirty || pmap_is_modified(m))
val |= MINCORE_MODIFIED_OTHER;
else {
/*
* Modified by someone else
*/
vm_page_lock_queues();
if (m->dirty || pmap_is_modified(m))
val |= MINCORE_MODIFIED_OTHER;
vm_page_unlock_queues();
}
/*
* Referenced by us
*/
if (pte & PG_A)
val |= MINCORE_REFERENCED|MINCORE_REFERENCED_OTHER;
/*
* Referenced by someone
*/
else if ((m->flags & PG_REFERENCED) || pmap_ts_referenced(m)) {
val |= MINCORE_REFERENCED_OTHER;
vm_page_flag_set(m, PG_REFERENCED);
else {
/*
* Referenced by someone else
*/
vm_page_lock_queues();
if ((m->flags & PG_REFERENCED) ||
pmap_ts_referenced(m)) {
val |= MINCORE_REFERENCED_OTHER;
vm_page_flag_set(m, PG_REFERENCED);
}
vm_page_unlock_queues();
}
}
return val;