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authorAlfred M. Szmidt <ams@gnu.org>2004-12-01 06:10:11 +0000
committerThomas Schwinge <tschwinge@gnu.org>2009-06-18 00:15:26 +0200
commit8f95dc8729437a6546a3777106f64d1c671d8ac3 (patch)
tree806d93a10c23bc2eda42628ba3fcbd29009b8a48 /kern/kalloc.c
parent7e2c3175d713af0d7ce14182fc188a24df176d36 (diff)
2004-09-07 Neal H. Walfield <neal@cs.uml.edu>
* linux/dev/glue/block.c (__brelse): Unconditionally kfree BH. (getblk): Unconditionally kalloc BH. * kern/kalloc.c [!NDEBUG] (kalloc_init_called): New static variable. (kalloc_init): Assert that kalloc_init_called is zero. [! NDEBUG] Set kalloc_init_called to 1 on success. (kalloc): Assert that kalloc_init_called is non-zero. (kget): Likewise. (kfree): Likewise.
Diffstat (limited to 'kern/kalloc.c')
-rw-r--r--kern/kalloc.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/kern/kalloc.c b/kern/kalloc.c
index 5390139..24dfe68 100644
--- a/kern/kalloc.c
+++ b/kern/kalloc.c
@@ -106,12 +106,18 @@ unsigned long k_zone_max[16] = {
* This initializes all of the zones.
*/
+#ifndef NDEBUG
+static int kalloc_init_called;
+#endif
+
void kalloc_init()
{
vm_offset_t min, max;
vm_size_t size;
register int i;
+ assert (! kalloc_init_called);
+
kalloc_map = kmem_suballoc(kernel_map, &min, &max,
kalloc_map_size, FALSE);
@@ -142,6 +148,10 @@ void kalloc_init()
size >= PAGE_SIZE ? ZONE_COLLECTABLE : 0,
k_zone_name[i]);
}
+
+#ifndef NDEBUG
+ kalloc_init_called = 1;
+#endif
}
vm_offset_t kalloc(size)
@@ -153,6 +163,8 @@ vm_offset_t kalloc(size)
/* compute the size of the block that we will actually allocate */
+ assert (kalloc_init_called);
+
allocsize = size;
if (size < kalloc_max) {
allocsize = MINSIZE;
@@ -185,6 +197,8 @@ vm_offset_t kget(size)
register vm_size_t allocsize;
vm_offset_t addr;
+ assert (kalloc_init_called);
+
/* compute the size of the block that we will actually allocate */
allocsize = size;
@@ -219,6 +233,8 @@ kfree(data, size)
register int zindex;
register vm_size_t freesize;
+ assert (kalloc_init_called);
+
freesize = size;
if (size < kalloc_max) {
freesize = MINSIZE;