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| author | Fred Isaman <iisaman@netapp.com> | 2011-03-03 18:13:44 +0300 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-03-11 23:38:44 +0300 |
| commit | 44b83799a922a153957c65ccfc985a8c902958c8 (patch) | |
| tree | 4dad6ec4655a876c3f12a15919fad407fd22ef59 /fs/nfs/pnfs.c | |
| parent | 5053aa568d4017aeb1fa35247d4ad96be262920f (diff) | |
| download | linux-44b83799a922a153957c65ccfc985a8c902958c8.tar.xz | |
NFSv4.1: trigger LAYOUTGET for writes
Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.c')
| -rw-r--r-- | fs/nfs/pnfs.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 3e545144a0b2..5f205d31d96c 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -873,6 +873,28 @@ pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode) pgio->pg_test = (ld && ld->pg_test) ? pnfs_read_pg_test : NULL; } +static int pnfs_write_pg_test(struct nfs_pageio_descriptor *pgio, + struct nfs_page *prev, + struct nfs_page *req) +{ + if (pgio->pg_count == prev->wb_bytes) { + /* This is first coelesce call for a series of nfs_pages */ + pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, + prev->wb_context, + IOMODE_RW); + } + return NFS_SERVER(pgio->pg_inode)->pnfs_curr_ld->pg_test(pgio, prev, req); +} + +void +pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode) +{ + struct pnfs_layoutdriver_type *ld; + + ld = NFS_SERVER(inode)->pnfs_curr_ld; + pgio->pg_test = (ld && ld->pg_test) ? pnfs_write_pg_test : NULL; +} + /* * Call the appropriate parallel I/O subsystem read function. */ |