On Mon, Mar 14, 2005 at 10:49:16AM -0700, Matthew Wilcox wrote:
> What does it mean to release a resource with children? Should the
> children become children of the released resource's parent? Should they
> be released too? Should we fail the release?
I've been running kernels with:
+ if (old->child) {
+ printk("Resource %p still has children: %s\n", old, old->name);
+ return -EINVAL;
+ }
+
here and it hasn't triggered once. I suspect the reason it hasn't is
because no one does release a resource with children, but I suspect
that's just by mere luck than design.
The only thing I'd question is whether we really need to BUG_ON() here.
ISTR Linus' policy for BUG()/BUG_ON() was only if the condition lead
directly to a filesystem-corrupting bug.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
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