Messages in this thread | | | Date | Wed, 4 Sep 2013 14:04:24 -0400 | Subject | Re: [PATCH 2/5] new fscache interface to check cache consistency | From | Milosz Tanski <> |
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David,
Is it as simple as stick a mutex at the top of the __fscache_check_consistency function before we try to find the object? This code should be called from a context that can sleep, in the Ceph code we call it from a delayed work queue (revalidate queue).
-- Milosz
On Wed, Sep 4, 2013 at 1:26 PM, David Howells <dhowells@redhat.com> wrote: > Milosz Tanski <milosz@adfin.com> wrote: > >> If the cache is withdrawn and we're starting anew I would consider >> that to okay. I would consider an empty page cache for a cookie to be >> consistent since there's nothing stale that I can read. Unless there's >> another synchronization issue that I'm missing in fscache. > > The problem is that the fscache_object struct may be deallocated whilst you're > using it. > > David
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