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| author | Fred Isaman <iisaman@netapp.com> | 2011-03-01 04:34:14 +0300 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-03-11 23:38:42 +0300 |
| commit | 94ad1c80e28f9700c84b4d28d1e5302ddf63a6fd (patch) | |
| tree | 2c600c1f8e85648c7693b5f0018b5d0b7e960b5f /fs/nfs/write.c | |
| parent | d684d2ae10a4f95d3035abf698d7d611ff2cd279 (diff) | |
| download | linux-94ad1c80e28f9700c84b4d28d1e5302ddf63a6fd.tar.xz | |
NFSv4.1: coelesce across layout stripes
Add a pg_test layout driver hook which is used to avoid coelescing I/O across
layout stripes.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/write.c')
| -rw-r--r-- | fs/nfs/write.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index ae528b98b804..40143c4747a5 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -28,6 +28,7 @@ #include "iostat.h" #include "nfs4_fs.h" #include "fscache.h" +#include "pnfs.h" #define NFSDBG_FACILITY NFSDBG_PAGECACHE @@ -982,6 +983,8 @@ static void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, { size_t wsize = NFS_SERVER(inode)->wsize; + pgio->pg_test = NULL; + if (wsize < PAGE_CACHE_SIZE) nfs_pageio_init(pgio, inode, nfs_flush_multi, wsize, ioflags); else |