Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [RFC] parallel directory operations | From | bzzz@tmi ... | Date | Tue, 08 Jul 2003 17:15:26 +0000 |
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>>>>> Nikita Danilov (ND) writes:
ND> By taking this approach one step further you may just add a semaphore ND> into struct dentry and take it instead of directory ->i_sem. I think ND> Alexander Viro tried something similar in the past, but it slowed down ND> common case when there is no concurrent access to the directory.
it's not semaphore. locks are created on demand to protect part of directory. we can't have a lots of semaphores allocated statically for each part of each directory.
BTW, all of this have to be enabled by 'pdirops' ext3's mount option. so, things don't slow down w/o this option.
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