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NFSv4.1: don't send COMMIT to ds for data sync writes 

Based on consensus reached in Feb 2011 interim IETF meeting regarding
use of LAYOUTCOMMIT, it has been decided that a NFS_DATA_SYNC return
from a WRITE to data server should not initiate a COMMIT.

Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
hifive-unleashed-5.1
Fred Isaman 2011-03-23 13:27:44 +00:00 committed by Trond Myklebust
parent 8ef2ce3e16
commit 465d52437d
1 changed files with 4 additions and 1 deletions
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5
fs/nfs/write.c
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@ -474,7 +474,10 @@ nfs_clear_request_commit(struct nfs_page *req)
static inline
int nfs_write_need_commit(struct nfs_write_data *data)
{
return data->verf.committed != NFS_FILE_SYNC;
if (data->verf.committed == NFS_DATA_SYNC)
return data->lseg == NULL;
else
return data->verf.committed != NFS_FILE_SYNC;
}
static inline