Changeset 2299914 in mainline for arch/ia64

Timestamp:

2006-03-16T12:57:31Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e898a8d7

Parents:

b7dcabb

Message:

Page table locking.

File:

• arch/ia64/src/mm/tlb.c (modified) (12 diffs)

arch/ia64/src/mm/tlb.c

@@ -424 +424 @@
         
         va = istate->cr_ifa;    /* faulting address */
+        page_table_lock(AS, true);
         t = page_mapping_find(AS, va);
         if (t) {
@@ -431 +432 @@
                  */
                 itc_pte_copy(t);
+                page_table_unlock(AS, true);
         } else {
                 /*
                  * Forward the page fault to address space page fault handler.
                  */
+                page_table_unlock(AS, true);
                 if (!as_page_fault(va)) {
+                        page_table_unlock(AS, true);
                         panic("%s: va=%P, rid=%d\n", __FUNCTION__, istate->cr_ifa, rr.map.rid);
                 }
@@ -467 +471 @@
         }
 
+        page_table_lock(AS, true);
         t = page_mapping_find(AS, va);
         if (t) {
@@ -474 +479 @@
                  */
                 dtc_pte_copy(t);
+                page_table_unlock(AS, true);
         } else {
                 /*
                  * Forward the page fault to address space page fault handler.
                  */
+                page_table_unlock(AS, true);
                 if (!as_page_fault(va)) {
                         panic("%s: va=%P, rid=%d, iip=%P\n", __FUNCTION__, va, rid, istate->cr_iip);
@@ -505 +512 @@
         pte_t *t;
 
+        page_table_lock(AS, true);
         t = page_mapping_find(AS, istate->cr_ifa);
         ASSERT(t && t->p);
@@ -515 +523 @@
                 dtc_pte_copy(t);
         }
+        page_table_unlock(AS, true);
 }
 
@@ -526 +535 @@
         pte_t *t;
 
+        page_table_lock(AS, true);
         t = page_mapping_find(AS, istate->cr_ifa);
         ASSERT(t && t->p);
@@ -536 +546 @@
                 itc_pte_copy(t);
         }
+        page_table_unlock(AS, true);
 }
 
@@ -547 +558 @@
         pte_t *t;
 
+        page_table_lock(AS, true);
         t = page_mapping_find(AS, istate->cr_ifa);
         ASSERT(t && t->p);
@@ -557 +569 @@
                 dtc_pte_copy(t);
         }
+        page_table_unlock(AS, true);
 }
 
@@ -571 +584 @@
         
         va = istate->cr_ifa;    /* faulting address */
+        page_table_lock(AS, true);
         t = page_mapping_find(AS, va);
         ASSERT(t);
@@ -583 +597 @@
                 else
                         dtc_pte_copy(t);
+                page_table_unlock(AS, true);
         } else {
+                page_table_unlock(AS, true);
                 if (!as_page_fault(va)) {
                         panic("%s: va=%P, rid=%d\n", __FUNCTION__, va, rr.map.rid);