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NFS: Add attribute update barriers to NFS writebacks

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Ensure that other operations that race with our write RPC calls
cannot revert the file size updates that were made on the server.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Trond Myklebust
2015-02-26 17:36:09 -05:00
parent f506200346
commit a08a8cd375
7 changed files with 57 additions and 8 deletions
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fs/nfs/nfs3proc.c
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@@ -834,7 +834,7 @@ static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
if (nfs3_async_handle_jukebox(task, inode))
return -EAGAIN;
if (task->tk_status >= 0)
nfs_post_op_update_inode_force_wcc(inode, hdr->res.fattr);
nfs_writeback_update_inode(hdr);
return 0;
}