Second Extended Filesystem (ext2) and other improvements (#33)

[lunaix-os.git] / lunaix-os / kernel / mm / valloc.c

diff --git a/lunaix-os/kernel/mm/valloc.c b/lunaix-os/kernel/mm/valloc.c
index 6d6783449b7d9d52df27260fbd293fbc0515f274..67c8eacb3f43f45b8b68c421e72c5f157c33583e 100644 (file)
--- a/lunaix-os/kernel/mm/valloc.c
+++ b/lunaix-os/kernel/mm/valloc.c
@@ -5,24 +5,18 @@
 
 #define CLASS_LEN(class) (sizeof(class) / sizeof(class[0]))
 
-static char piles_names[][PILE_NAME_MAXLEN] = {"valloc_8",
-                                               "valloc_16",
-                                               "valloc_32",
-                                               "valloc_64",
-                                               "valloc_128",
-                                               "valloc_256",
-                                               "valloc_512",
-                                               "valloc_1k",
-                                               "valloc_2k",
-                                               "valloc_4k",
-                                               "valloc_8k"};
-
-static char piles_names_dma[][PILE_NAME_MAXLEN] = {"valloc_dma_128",
-                                                   "valloc_dma_256",
-                                                   "valloc_dma_512",
-                                                   "valloc_dma_1k",
-                                                   "valloc_dma_2k",
-                                                   "valloc_dma_4k"};
+static char piles_names[][PILE_NAME_MAXLEN] = 
+{
+    "valloc_8",   "valloc_16",  "valloc_32",  "valloc_64",
+    "valloc_128", "valloc_256", "valloc_512", "valloc_1k",
+    "valloc_2k",  "valloc_4k",  "valloc_8k"  
+};
+
+static char piles_names_dma[][PILE_NAME_MAXLEN] = 
+{
+    "valloc_dma_128", "valloc_dma_256", "valloc_dma_512",
+    "valloc_dma_1k",  "valloc_dma_2k",  "valloc_dma_4k"
+};
 
 static struct cake_pile* piles[CLASS_LEN(piles_names)];
 static struct cake_pile* piles_dma[CLASS_LEN(piles_names_dma)];
@@ -49,12 +43,12 @@ __valloc(unsigned int size,
          size_t len,
          size_t boffset)
 {
-    size_t i = ILOG2(size);
+    size_t i = ilog2(size);
     i += (size - (1 << i) != 0);
     i -= boffset;
 
     if (i >= len)
-        return NULL;
+        i = 0;
 
     return cake_grab(segregate_list[i]);
 }
@@ -88,7 +82,7 @@ void*
 vcalloc(unsigned int size, unsigned int count)
 {
     unsigned int alloc_size;
-    if (umul_overflow(size, count, &alloc_size)) {
+    if (umul_of(size, count, &alloc_size)) {
         return 0;
     }
 
@@ -131,4 +125,9 @@ void
 vfree_dma(void* ptr)
 {
     __vfree(ptr, piles_dma, CLASS_LEN(piles_names_dma));
+}
+
+inline void must_inline
+valloc_ensure_valid(void* ptr) {
+    cake_ensure_valid(ptr);
 }
\ No newline at end of file