Re: mmap over nfs leads to excessive system load

From: Andrew Morton
Date: Wed Nov 16 2005 - 19:25:45 EST

Trond Myklebust <trond.myklebust@xxxxxxxxxx> wrote:
> The accompanying NFS patch makes use of this in order to figure out when
> to flush the data correctly.

OK. So with that patch, nfs_writepages() may still leave I/O pending,
uninitiated, yes?

I don't understand why NFS hasn't been BUGging as it stands at present. It
has several end_page_writeback() calls but no set_page_writeback()s.
end_page_writeback() or rotate_reclaimable_page() will go BUG if the page
wasn't PageWriteback().
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at