Messages in this thread | | | Date | Wed, 22 Apr 2020 03:34:07 +0100 | From | Al Viro <> | Subject | Re: [PATCH V9 09/11] fs: Introduce DCACHE_DONTCACHE |
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On Tue, Apr 21, 2020 at 01:25:19PM -0700, Darrick J. Wong wrote:
> > DCACHE_DONTCACHE indicates a dentry should not be cached on final > > dput(). > > > > Also add a helper function to mark DCACHE_DONTCACHE on all dentries > > pointing to a specific inode when that inode is being set I_DONTCACHE. > > > > This facilitates dropping dentry references to inodes sooner which > > require eviction to swap S_DAX mode.
Explain, please. Questions:
1) does that ever happen to directories? 2) how much trouble do we get if such inode is *NOT* evicted for, say, several days?
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