Messages in this thread | | | Date | Sat, 4 Jun 2011 01:25:52 +0100 | From | Al Viro <> | Subject | Re: [PATCH 06/12] inode: Make unused inode LRU per superblock |
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On Thu, Jun 02, 2011 at 05:01:01PM +1000, Dave Chinner wrote: > From: Dave Chinner <dchinner@redhat.com> > > The inode unused list is currently a global LRU. This does not match > the other global filesystem cache - the dentry cache - which uses > per-superblock LRU lists. Hence we have related filesystem object > types using different LRU reclaimation schemes. > > To enable a per-superblock filesystem cache shrinker, both of these > caches need to have per-sb unused object LRU lists. Hence this patch > converts the global inode LRU to per-sb LRUs. > > The patch only does rudimentary per-sb propotioning in the shrinker > infrastructure, as this gets removed when the per-sb shrinker > callouts are introduced later on.
What protects s_nr_inodes_unused?
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