[OpenBIOS] [PATCH] ppc: fix reuse of MMU translation slots

[Alyssa Milburn]

The current code always picks slot 0 in the reuse case. (This doesn't seem
to matter in the cases I've tested, though.)

Signed-off-by: Alyssa Milburn 
---
 arch/ppc/qemu/ofmem.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/ppc/qemu/ofmem.c b/arch/ppc/qemu/ofmem.c
index 6f346a3..c9fe154 100644
--- a/arch/ppc/qemu/ofmem.c
+++ b/arch/ppc/qemu/ofmem.c
@@ -359,9 +359,11 @@ hash_page_64(unsigned long ea, phys_addr_t phys, ucell mode)
             found = 1;

/* otherwise use a free slot */
-    for (i = 0; !found && i < 8; i++)
-        if (!pp[i].v)
-            found = 1;
+    if (!found) {
+        for (i = 0; !found && i < 8; i++)
+            if (!pp[i].v)
+                found = 1;
+    }

/* out of slots, just evict one */
     if (!found)
@@ -414,9 +416,11 @@ hash_page_32(unsigned long ea, phys_addr_t phys, ucell mode)
             found = 1;

/* otherwise use a free slot */
-    for (i = 0; !found && i < 8; i++)
-        if (!pp[i].v)
-            found = 1;
+    if (!found) {
+        for (i = 0; !found && i < 8; i++)
+            if (!pp[i].v)
+                found = 1;
+    }

/* out of slots, just evict one */
     if (!found)