Re: [PATCH] fix return value for mb_cache_shrink_fn when nr_to_scan > 0

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On Sunday 18 July 2010 08:36:59 Wang Sheng-Hui wrote:
> I regenerated the patch. Please check it.

The logic for calculating how many objects to free is still wrong: 
mb_cache_shrink_fn returns the number of entries scaled by 
sysctl_vfs_cache_pressure / 100.  It should also scale nr_to_scan by the 
inverse of that.  The sysctl_vfs_cache_pressure == 0 case (never scale) may 
require special attention.

See dcache_shrinker() in fs/dcache.c.

Thanks,
Andreas
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