Messages in this thread | | | From | David Howells <> | Subject | Re: [PATCH 1/4] fs, afs: convert afs_cell.usage from atomic_t to refcount_t | Date | Wed, 22 Feb 2017 17:29:14 +0000 |
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Reshetova, Elena <elena.reshetova@intel.com> wrote:
> Thank you very much David for testing the patches! > I guess for this one and other two patches it means that if we want to do the atomic_t --> refcount_t conversions, > we need to do +1 on the whole counting scheme to avoid issues around reaching zero. > Do you see this approach reasonable? I can give it a try, if it makes sense in your opinion.
Or you could create a refcount_inc_may_resurrect() function that does allow increment from 0. Make it take a lock-check like the rcu functions do.
David
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