All, There is a requirement in write-behind where during readdirp we may have to invalidate iatts/stats of some of the children of the directory [1]. For lack of better alternatives I added a dentry list to parent inode which contains all children that've been linked (through lookup or readdirp on directory). I myself am not too comfortable with this solution as it might eat up significant memory for large directories.
Thoughts? [1] https://review.gluster.org/20413 regards, Raghavendra
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