Alex Tomas writes:
> >>>>> Andi Kleen (AK) writes:
> AK> On Tue, 08 Jul 2003 15:50:27 +0000
> AK> email@example.com wrote:
> >> well, it makes sense. AFAIU, only problem with this solution is that we need
> >> very well-tuned hash function.
> AK> A small rbtree or similar would work too. Linux already has the utility code for this.
> AK> And a fast path to avoid the overhead when it isn't needed (e.g. first locker uses a
> AK> preallocated lock node, which is cheap to queue)
> hmm. interesting! thanks for review.
By taking this approach one step further you may just add a semaphore
into struct dentry and take it instead of directory ->i_sem. I think
Alexander Viro tried something similar in the past, but it slowed down
common case when there is no concurrent access to the directory.
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This archive was generated by hypermail 2b29 : Tue Jul 15 2003 - 22:00:27 EST