Re: [PATCH 04/11] quota: make dquot lists per-sb

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On Tue, Oct 05, 2010 at 10:20:20PM +0400, Dmitry Monakhov wrote:
> Currently quota lists are global which is very bad for scalability.
> * inuse_lists -> sb->s_dquot->dq_inuse_list
> * free_lists  -> sb->s_dquot->dq_free_lists
> * Add per sb lock for quota's lists protection
> 
> Do not remove dq_lists_lock is used now only for protecting quota_hash

I'm not a big fan of adding tons of new fields to the generic superblock
for a handfull filesystems actually using it.  Can you look into
introducing a quota_sb structure that the few filesystems that use
it can embedd into their superblock?

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