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| author | bp <bp@FreeBSD.org> | 2000-06-29 03:41:30 +0000 |
|---|---|---|
| committer | bp <bp@FreeBSD.org> | 2000-06-29 03:41:30 +0000 |
| commit | 12d92ca4840d8a4774f880ce5fffc9e30b05d810 (patch) | |
| tree | 6be0ff54f148965aebf646f04ffadd8c6bdf6a3b | |
| parent | 11a7e21e9c91061aa8b8e0790f26761e25a63b2f (diff) | |
| download | FreeBSD-src-12d92ca4840d8a4774f880ce5fffc9e30b05d810.zip FreeBSD-src-12d92ca4840d8a4774f880ce5fffc9e30b05d810.tar.gz | |
If kernel compiled with INVARIANTS:
On unload, remove references from freelist to memory type defined by module.
Print a warning if module defines and allocate its own memory type, but
didn't free it all on unload.
Reviewed by: peter
| -rw-r--r-- | sys/kern/kern_malloc.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sys/kern/kern_malloc.c b/sys/kern/kern_malloc.c index fe9459f..d228d8f 100644 --- a/sys/kern/kern_malloc.c +++ b/sys/kern/kern_malloc.c @@ -494,6 +494,12 @@ malloc_uninit(data) { struct malloc_type *type = (struct malloc_type *)data; struct malloc_type *t; + struct kmembuckets *kbp; + struct freelist *freep; + long indx; +#ifdef INVARIANTS + int s; +#endif if (type->ks_magic != M_MAGIC) panic("malloc type lacks magic"); @@ -504,6 +510,24 @@ malloc_uninit(data) if (type->ks_limit == 0) panic("malloc_uninit on uninitialized type"); +#ifdef INVARIANTS + s = splmem(); + for (indx = 0; indx < MINBUCKET + 16; indx++) { + kbp = bucket + indx; + freep = (struct freelist*)kbp->kb_next; + while (freep) { + if (freep->type == type) + freep->type = M_FREE; + freep = (struct freelist*)freep->next; + } + } + splx(s); + + if (type->ks_memuse != 0) + printf("malloc_uninit: %ld bytes of '%s' still allocated\n", + type->ks_memuse, type->ks_shortdesc); +#endif + if (type == kmemstatistics) kmemstatistics = type->ks_next; else { |
