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[PATCH] Remove near all BUGs in mm/mempolicy.c

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Most of them can never be triggered and were only for development.

Signed-off-by: "Andi Kleen" <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andi Kleen 2005-10-29 18:15:49 -07:00 committed by Linus Torvalds
parent dfcd3c0dc4
commit 662f3a0b94
1 changed files with 2 additions and 7 deletions
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9
mm/mempolicy.c
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@ -185,7 +185,6 @@ static struct zonelist *bind_zonelist(nodemask_t *nodes)
policy_zone = k;
}
}
BUG_ON(num >= max);
zl->zones[num] = NULL;
return zl;
}
@ -709,7 +708,6 @@ static unsigned interleave_nodes(struct mempolicy *policy)
struct task_struct *me = current;
nid = me->il_next;
BUG_ON(nid >= MAX_NUMNODES);
next = next_node(nid, policy->v.nodes);
if (next >= MAX_NUMNODES)
next = first_node(policy->v.nodes);
@ -731,18 +729,17 @@ static unsigned offset_il_node(struct mempolicy *pol,
nid = next_node(nid, pol->v.nodes);
c++;
} while (c <= target);
BUG_ON(nid >= MAX_NUMNODES);
return nid;
}
/* Allocate a page in interleaved policy.
Own path because it needs to do special accounting. */
static struct page *alloc_page_interleave(gfp_t gfp, unsigned order, unsigned nid)
static struct page *alloc_page_interleave(gfp_t gfp, unsigned order,
unsigned nid)
{
struct zonelist *zl;
struct page *page;
BUG_ON(!node_online(nid));
zl = NODE_DATA(nid)->node_zonelists + gfp_zone(gfp);
page = __alloc_pages(gfp, order, zl);
if (page && page_zone(page) == zl->zones[0]) {
@ -785,8 +782,6 @@ alloc_page_vma(gfp_t gfp, struct vm_area_struct *vma, unsigned long addr)
unsigned nid;
if (vma) {
unsigned long off;
BUG_ON(addr >= vma->vm_end);
BUG_ON(addr < vma->vm_start);
off = vma->vm_pgoff;
off += (addr - vma->vm_start) >> PAGE_SHIFT;
nid = offset_il_node(pol, vma, off);