diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-06-10 13:30:23 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-07-12 13:40:28 -0400 |
| commit | e885de1a5bc9f46ef8f934c5a7602c89d2d51e8d (patch) | |
| tree | fec97da658ce241c055f5fc8bb7e2e84ee1cc259 /fs/nfs/pnfs.c | |
| parent | d8007d4dd6ff8749cc8a4063c3ec87442db76d82 (diff) | |
NFSv4.1: Fall back to ordinary i/o through the mds if we have no layout segment
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.c')
| -rw-r--r-- | fs/nfs/pnfs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 69a0c3f1e462..cc807fe46953 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1066,6 +1066,10 @@ pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *r req->wb_bytes, IOMODE_READ, GFP_KERNEL); + /* If no lseg, fall back to read through mds */ + if (pgio->pg_lseg == NULL) + nfs_pageio_init_read_mds(pgio, pgio->pg_inode); + } EXPORT_SYMBOL_GPL(pnfs_generic_pg_init_read); @@ -1080,6 +1084,9 @@ pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page * req->wb_bytes, IOMODE_RW, GFP_NOFS); + /* If no lseg, fall back to write through mds */ + if (pgio->pg_lseg == NULL) + nfs_pageio_init_write_mds(pgio, pgio->pg_inode, pgio->pg_ioflags); } EXPORT_SYMBOL_GPL(pnfs_generic_pg_init_write); |