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authorBenny Halevy <bhalevy@panasas.com>2010-10-20 00:18:01 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-10-24 18:07:10 -0400
commite5e940170b2136ad4d5483ef293ae284b9cc8d53 (patch)
tree1568bf55addee6a6fdc091026083426b087e68df /fs/nfs/file.c
parent7ab672ce312133ee4a5d85b71447b2b334403681 (diff)
NFS: create and destroy inode's layout cache
At the start of the io paths, try to grab the relevant layout information. This will initiate the inode's layout cache, but stubs ensure the cache stays empty. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Dean Hildebrand <dhildebz@umich.edu> Signed-off-by: Marc Eshel <eshel@almaden.ibm.com> Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn> Signed-off-by: Ricardo Labiaga <ricardo.labiaga@netapp.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/file.c')
-rw-r--r--fs/nfs/file.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index c3f2477c16c..91d019d3912 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -36,6 +36,7 @@
#include "internal.h"
#include "iostat.h"
#include "fscache.h"
+#include "pnfs.h"
#define NFSDBG_FACILITY NFSDBG_FILE
@@ -386,6 +387,10 @@ static int nfs_write_begin(struct file *file, struct address_space *mapping,
file->f_path.dentry->d_name.name,
mapping->host->i_ino, len, (long long) pos);
+ pnfs_update_layout(mapping->host,
+ nfs_file_open_context(file),
+ IOMODE_RW);
+
start:
/*
* Prevent starvation issues if someone is doing a consistency