Changeset 498b201 in mainline

Timestamp:

2008-07-06T20:07:59Z (16 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

b5a1730

Parents:

5f7a0ef

Message:

The real intention of the previous commit was to put the boundary
on 4 GiB, not 16 GiB.

Location:

kernel/generic

Files:

• include/mm/frame.h (modified) (1 diff)
• src/mm/frame.c (modified) (2 diffs)

kernel/generic/include/mm/frame.h

@@ -64 +64 @@
 /** Do not start reclaiming when no free memory. */
 #define FRAME_NO_RECLAIM        0x4
-/** Do not allocate above 16GiB. */
-#define FRAME_LOW_16_GiB        0x8
+/** Do not allocate above 4 GiB. */
+#define FRAME_LOW_4_GiB         0x8
 
 static inline uintptr_t PFN2ADDR(pfn_t frame)

kernel/generic/src/mm/frame.c

@@ -266 +266 @@
         
         /* Mask off flags that are not applicable. */
-        flags &= FRAME_LOW_16_GiB;
+        flags &= FRAME_LOW_4_GiB;
 
         spinlock_lock(&zones.lock);
@@ -824 +824 @@
 
         /* Mask off flags that are calculated automatically. */
-        flags &= ~FRAME_LOW_16_GiB;
+        flags &= ~FRAME_LOW_4_GiB;
         /* Determine calculated flags. */
-        if (z->base + count < (1ULL << (34 - FRAME_WIDTH)))     /* 16 GiB */
-                flags |= FRAME_LOW_16_GiB;
+        if (z->base + count < (1ULL << (32 - FRAME_WIDTH)))     /* 4 GiB */
+                flags |= FRAME_LOW_4_GiB;
 
         z->flags = flags;