Messages in this thread | | | Date | Thu, 8 Feb 2007 01:01:21 -0800 | Subject | Re: [PATCH] remove sb->s_files and file_list_lock usage in dquot.c | From | Bill Huey (hui) <> |
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On Tue, Feb 06, 2007 at 02:23:33PM +0100, Christoph Hellwig wrote: > Iterate over sb->s_inodes instead of sb->s_files in add_dquot_ref. > This reduces list search and lock hold time aswell as getting rid of > one of the few uses of file_list_lock which Ingo identified as a > scalability problem.
Christoph,
The i_mutex lock the inode structure is also a source of contention heavy when running a lot of parallel "find"s. I'm sure that folks would be open to hearing suggestions regarding how to fix that.
bill
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