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NFS: rewrite directio read to use async coalesce code

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This also has the advantage that it allows directio to use pnfs.

Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Fred Isaman
2012-04-20 14:47:51 -04:00
committed by Trond Myklebust
parent 1825a0d08f
commit 584aa810b6
6 changed files with 139 additions and 145 deletions
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include/linux/nfs_page.h
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@@ -68,6 +68,7 @@ struct nfs_pageio_descriptor {
const struct rpc_call_ops *pg_rpc_callops;
const struct nfs_pgio_completion_ops *pg_completion_ops;
struct pnfs_layout_segment *pg_lseg;
struct nfs_direct_req *pg_dreq;
};
#define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags))