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>
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 6eec286..314f571 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -48,6 +48,7 @@
#include "internal.h"
#include "fscache.h"
#include "dns_resolve.h"
+#include "pnfs.h"
#define NFSDBG_FACILITY NFSDBG_VFS
@@ -1410,6 +1411,7 @@
{
truncate_inode_pages(&inode->i_data, 0);
end_writeback(inode);
+ pnfs_destroy_layout(NFS_I(inode));
/* If we are holding a delegation, return it! */
nfs_inode_return_delegation_noreclaim(inode);
/* First call standard NFS clear_inode() code */
@@ -1447,6 +1449,7 @@
nfsi->delegation = NULL;
nfsi->delegation_state = 0;
init_rwsem(&nfsi->rwsem);
+ nfsi->layout = NULL;
#endif
}