Messages in this thread | | | Date | Wed, 20 Jul 2022 04:02:40 +0100 | From | Matthew Wilcox <> | Subject | Re: [PATCH] fs: drop_caches: skip dropping pagecache which is always dirty |
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On Wed, Jul 20, 2022 at 02:21:19AM +0000, cgel.zte@gmail.com wrote: > From: Yang Yang <yang.yang29@zte.com.cn> > > Pagecache of some kind of fs has PG_dirty bit set once it was > allocated, so it can't be dropped. These fs include ramfs and > tmpfs. This can make drop_pagecache_sb() more efficient.
Why do we want to make drop_pagecache_sb() more efficient?
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