Re: [RFC, PATCH] dont insert sockets/pipes dentries into dentry_hashtable.

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Al Viro a écrit :
On Wed, Nov 01, 2006 at 09:21:06AM +0100, Eric Dumazet wrote:

And " (deleted)" is correctly added to deleted files.
The hell it will.

touch a
touch b
exec 5<a
mv b a
ls -l /proc/$$/fd/5

With your patch and without it, please.
Yes I will do, thanks.

PS: getting rid of socket dentries is a bad idea with the capital "Fuck, No".
For those who want to see where does that path lead and are attracted to
trainwrecks in general I can recommend *BSD socket handling.  They have
paid quite painfully for lack of proper vnodes.  It's simply not worth
the resulting trouble.
I have one server with one million sockets, wasting 210 MB of ram for dentries
that are only used when some guy does some /proc/$pid/fd work
Socket hot path already dont use anymore dentries, thanks to file->private_data

Eric

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