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DateFri, 2 Jun 2006 01:54:45 -0400
From"Xin Zhao" <>
SubjectWhy NFS enforce size limit on readdirplus
Maybe this question is a little dumb.

I am wondering why in NFS readdirplus can be used only for directories
of size less than 8*PAGE_SIZE, otherwise, it will switch to use normal
readdir?

In nfs/inode.c, I noticed the following code:
			    if (nfs_server_capable(inode, NFS_CAP_READDIRPLUS) &&
fattr->size <= NFS_LIMIT_READDIRPLUS)
				    set_bit(NFS_INO_ADVISE_RDPLUS, &NFS_FLAGS(inode));
Can someone kindly explain the reason?

Thanks a lot!

Xin
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