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Rick Macklem authored
This patch modifies writing to mirrored pNFS DSs slightly so that there is only one m_copym() call for a mirrored pair instead of two of them. This call replaces the custom nfsm_copym() call, which is no longer needed and deleted by this patch. The patch does introduce a new nfsm_split() function that only calls m_split() for the non-ext_pgs case. The semantics of nfsm_uiombuflist() is changed to include code that nul pads the generated mbuf list. This was done by nfsm_copym() prior to this patch. The main reason for this change is that it allows the data to be a list of ext_pgs mbufs, since the m_copym() is for the entire mbuf list. This support will be added in a future commit. This patch only affects writing to mirrored flexible file layout pNFS servers.
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