NFSv4.1: layoutcommit
The filelayout driver sends LAYOUTCOMMIT only when COMMIT goes to the data server (as opposed to the MDS) and the data server WRITE is not NFS_FILE_SYNC. Only whole file layout support means that there is only one IOMODE_RW layout segment. Signed-off-by: NAndy Adamson <andros@netapp.com> Signed-off-by: NAlexandros Batsakis <batsakis@netapp.com> Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> Signed-off-by: NDean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: NFred Isaman <iisaman@citi.umich.edu> Signed-off-by: NMingyang Guo <guomingyang@nrchpc.ac.cn> Signed-off-by: NTao Guo <guotao@nrchpc.ac.cn> Signed-off-by: NZhang Jingwang <zhangjingwang@nrchpc.ac.cn> Tested-by: NBoaz Harrosh <bharrosh@panasas.com> Signed-off-by: NBenny Halevy <bhalevy@panasas.com> Signed-off-by: NFred Isaman <iisaman@netapp.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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