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Code Issues Releases Activity

sys/malloc.h:

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Order the SYSINIT() for MALLOC_DEFINE() correctly so that malloc()
doesn't have to waste time initializing itself.  The
(SI_SUB_KMEM, SI_ORDER_ANY) order was shared with syscons' SYSINIT()
for scmeminit(), and scmeminit() calls malloc(), so malloc()
initialization was not always complete on the first call to malloc().

kern/kern_malloc.c:
- Removed self-initialization in malloc().
- Removed half-baked sanity check in free().  Trust MALLOC_DEFINE().
This commit is contained in:
Bruce Evans 2000-06-14 18:31:42 +00:00
parent 7c0bc50d70
commit 8e8cac5555
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=61689
2 changed files with 2 additions and 15 deletions
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15
sys/kern/kern_malloc.c
View File

@ -147,19 +147,9 @@ malloc(size, type, flags)
KASSERT(intr_nesting_level == 0,
("malloc(M_WAITOK) in interrupt context"));
#endif
/*
* Must be at splmem() prior to initializing segment to handle
* potential initialization race.
*/
s = splmem();
if (type->ks_limit == 0)
malloc_init(type);
indx = BUCKETINDX(size);
kbp = &bucket[indx];
s = splmem();
while (ksp->ks_memuse >= ksp->ks_limit) {
if (flags & M_ASLEEP) {
if (ksp->ks_limblocks < 65535)
@ -298,9 +288,6 @@ free(addr, type)
#endif
register struct malloc_type *ksp = type;
if (type->ks_limit == 0)
panic("freeing with unknown type (%s)", type->ks_shortdesc);
KASSERT(kmembase <= (char *)addr && (char *)addr < kmemlimit,
("free: address %p out of range", (void *)addr));
kup = btokup(addr);

2
sys/sys/malloc.h
View File

@ -68,7 +68,7 @@ struct malloc_type {
struct malloc_type type[1] = { \
{ NULL, 0, 0, 0, 0, 0, 0, M_MAGIC, shortdesc, 0, 0 } \
}; \
SYSINIT(type##_init, SI_SUB_KMEM, SI_ORDER_ANY, malloc_init, type); \
SYSINIT(type##_init, SI_SUB_KMEM, SI_ORDER_SECOND, malloc_init, type); \
SYSUNINIT(type##_uninit, SI_SUB_KMEM, SI_ORDER_ANY, malloc_uninit, type)
#define MALLOC_DECLARE(type) \