Messages in this thread | | | Subject | Re: [BLOCK] bh: Ensure bh fits within a page | From | Andi Kleen <> | Date | 01 Aug 2006 21:33:54 +0200 |
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Herbert Xu <herbert@gondor.apana.org.au> writes: > -- > diff --git a/fs/buffer.c b/fs/buffer.c > index 71649ef..b998f08 100644 > --- a/fs/buffer.c > +++ b/fs/buffer.c > @@ -2790,6 +2790,7 @@ int submit_bh(int rw, struct buffer_head > BUG_ON(!buffer_locked(bh)); > BUG_ON(!buffer_mapped(bh)); > BUG_ON(!bh->b_end_io); > + WARN_ON(bh_offset(bh) + bh->b_size > PAGE_SIZE);
What happens when someone implements direct large page IO?
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