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pnfs/blocklayout: set up layoutupdate_pages properly 

We need to replace the __be32 with a void pointer to do proper arithmentics
on the virtual addresses so that we can get the right page pointers.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Christoph Hellwig 2015-08-17 18:40:58 +02:00 committed by Trond Myklebust
parent 29662fa646
commit 68596bd188
1 changed files with 2 additions and 5 deletions
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7
fs/nfs/blocklayout/extent_tree.c
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@ -558,14 +558,11 @@ ext_tree_prepare_commit(struct nfs4_layoutcommit_args *arg)
arg->layoutupdate_len = ext_tree_layoutupdate_size(count);
if (unlikely(arg->layoutupdate_pages != &arg->layoutupdate_page)) {
__be32 *p = start_p;
void *p = start_p, *end = p + arg->layoutupdate_len;
int i = 0;
for (p = start_p;
p < start_p + arg->layoutupdate_len;
p += PAGE_SIZE) {
for ( ; p < end; p += PAGE_SIZE)
arg->layoutupdate_pages[i++] = vmalloc_to_page(p);
}
}
dprintk("%s found %zu ranges\n", __func__, count);