Messages in this thread | | | Date | Tue, 27 Jun 2023 23:11:53 -0700 | From | Christoph Hellwig <> | Subject | Re: [PATCH] mm: introduce statistic for inode's gen&tier |
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On Tue, Jun 27, 2023 at 05:17:18PM +0800, zhaoyang.huang wrote: > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -434,6 +434,8 @@ struct address_space { > struct rb_root_cached i_mmap; > struct rw_semaphore i_mmap_rwsem; > unsigned long nrpages; > + atomic_long_t gen; > + atomic_long_t tier;
This increases the size of the inode by 16 byes, and better have really good data supporting it, as increases of the inode size impact a lot of workloads.
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