On 9 Apr 2002, Dag-Erling Smorgrav wrote:
> Considering that neither LOOKUP_SHARED nor LOOKUP_EXCLUSIVE is
> documented anywhere, could you enlighten us as to what, exactly, they
Right, sorry. There was some minimal discussion about this on arch quite
a while ago. Basically, it allows namei to return leafs locked with
shared locks instead of exclusive locks when a flag is set.
This not only reduces contention, but also the number of exclusive locks
that are floating around in the system.
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