Hi, On Wed, 2006-11-29 at 01:48 -0800, Andreas Dilger wrote:I agree that this is a good plan, but I'd been looking at this idea from a different direction recently. The in kernel NFS server calls vfs_getattr from its filldir routine for readdirplus and this means not only are we unable to optimise performance by (for example) sorting groups of getattr calls so that we read the inodes in disk block order, but also that its effectively enforcing a locking order of the inodes on us too. Since we can have async locking in GFS2, we should be able to do "lockahead" with readdirplus too. I had been considering proposing a readdirplus export operation, but since this thread has come up, perhaps a file operation would be preferable as it could solve two problems with one operation? Steve. - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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