diff options
| author | Peng Tao <bergwolf@gmail.com> | 2012-09-25 08:55:57 +0200 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-10-09 01:32:22 +0200 |
| commit | 6296556f0b31eaff29f2a3aee2c17b7eae895b98 (patch) | |
| tree | 19f39cac9cff045e8c753ab8908deadc1c9c6bab /fs/nfs/objlayout/objio_osd.c | |
| parent | NFS: track direct IO left bytes (diff) | |
| download | linux-6296556f0b31eaff29f2a3aee2c17b7eae895b98.tar.xz linux-6296556f0b31eaff29f2a3aee2c17b7eae895b98.zip | |
NFS41: send real write size in layoutget
For buffer write, block layout client scan inode mapping to find
next hole and use offset-to-hole as layoutget length. Object
layout client uses offset-to-isize as layoutget length.
For direct write, both block layout and object layout use dreq->bytes_left.
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/objlayout/objio_osd.c')
| -rw-r--r-- | fs/nfs/objlayout/objio_osd.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c index ea6d111b03e9..be731e6b7b9c 100644 --- a/fs/nfs/objlayout/objio_osd.c +++ b/fs/nfs/objlayout/objio_osd.c @@ -41,6 +41,7 @@ #include <scsi/osd_ore.h> #include "objlayout.h" +#include "../internal.h" #define NFSDBG_FACILITY NFSDBG_PNFS_LD @@ -606,8 +607,14 @@ static bool aligned_on_raid_stripe(u64 offset, struct ore_layout *layout, void objio_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req) { unsigned long stripe_end = 0; + u64 wb_size; - pnfs_generic_pg_init_write(pgio, req); + if (pgio->pg_dreq == NULL) + wb_size = i_size_read(pgio->pg_inode) - req_offset(req); + else + wb_size = nfs_dreq_bytes_left(pgio->pg_dreq); + + pnfs_generic_pg_init_write(pgio, req, wb_size); if (unlikely(pgio->pg_lseg == NULL)) return; /* Not pNFS */ |