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nfs: remove ->write_pageio_init from rpc ops

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The write_pageio_init method is just a very convoluted way to grab the
right nfs_pageio_ops vector.  The vector to chose is not a choice of
protocol version, but just a pNFS vs MDS I/O choice that can simply be
done inside nfs_pageio_init_write based on the presence of a layout
driver, and a new force_mds flag to the special case of falling back
to MDS I/O on a pNFS-capable volume.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Christoph Hellwig 2014-04-16 15:07:21 +02:00 • committed by Trond Myklebust
parent 1b33809ea8
commit a20c93e316
9 changed files with 17 additions and 39 deletions
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1
fs/nfs/nfs3proc.c
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@ -951,7 +951,6 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
.read_rpc_prepare = nfs3_proc_read_rpc_prepare,
.read_done = nfs3_read_done,
.write_setup = nfs3_proc_write_setup,
.write_pageio_init = nfs_pageio_init_write,
.write_rpc_prepare = nfs3_proc_write_rpc_prepare,
.write_done = nfs3_write_done,
.commit_setup = nfs3_proc_commit_setup,