mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

BUG_ON() Conversion in mm/slab.c 

this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
This commit is contained in:
Eric Sesterhenn 2006-04-02 13:49:25 +02:00 committed by Adrian Bunk
parent 75babcaced
commit 40094fa652
1 changed files with 6 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
mm/slab.c
View File

@ -1297,8 +1297,7 @@ void __init kmem_cache_init(void)
if (cache_cache.num)
break;
}
if (!cache_cache.num)
BUG();
BUG_ON(!cache_cache.num);
cache_cache.gfporder = order;
cache_cache.colour = left_over / cache_cache.colour_off;
cache_cache.slab_size = ALIGN(cache_cache.num * sizeof(kmem_bufctl_t) +
@ -1974,8 +1973,7 @@ kmem_cache_create (const char *name, size_t size, size_t align,
* Always checks flags, a caller might be expecting debug support which
* isn't available.
*/
if (flags & ~CREATE_MASK)
BUG();
BUG_ON(flags & ~CREATE_MASK);
/*
* Check that size is in terms of words. This is needed to avoid
@ -2206,8 +2204,7 @@ static int __node_shrink(struct kmem_cache *cachep, int node)
slabp = list_entry(l3->slabs_free.prev, struct slab, list);
#if DEBUG
if (slabp->inuse)
BUG();
BUG_ON(slabp->inuse);
#endif
list_del(&slabp->list);
@ -2248,8 +2245,7 @@ static int __cache_shrink(struct kmem_cache *cachep)
*/
int kmem_cache_shrink(struct kmem_cache *cachep)
{
if (!cachep || in_interrupt())
BUG();
BUG_ON(!cachep || in_interrupt());
return __cache_shrink(cachep);
}
@ -2277,8 +2273,7 @@ int kmem_cache_destroy(struct kmem_cache *cachep)
int i;
struct kmem_list3 *l3;
if (!cachep || in_interrupt())
BUG();
BUG_ON(!cachep || in_interrupt());
/* Don't let CPUs to come and go */
lock_cpu_hotplug();
@ -2477,8 +2472,7 @@ static int cache_grow(struct kmem_cache *cachep, gfp_t flags, int nodeid)
* Be lazy and only check for valid flags here, keeping it out of the
* critical path in kmem_cache_alloc().
*/
if (flags & ~(SLAB_DMA | SLAB_LEVEL_MASK | SLAB_NO_GROW))
BUG();
BUG_ON(flags & ~(SLAB_DMA | SLAB_LEVEL_MASK | SLAB_NO_GROW));
if (flags & SLAB_NO_GROW)
return 0;