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SubjectRe: [PATCH 7/5] Optimise d_find_alias()
Date
Andrew Morton <akpm@osdl.org> wrote:

> How can we get away without a barrier?

Is this what you're thinking of:

struct dentry * d_find_alias(struct inode *inode)
{
struct dentry *de = NULL;

smp_rb();
if (!list_empty(&inode->i_dentry)) {
spin_lock(&dcache_lock);
de = __d_find_alias(inode, 0);
spin_unlock(&dcache_lock);
}
return de;
}


David
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