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authorAndy Adamson <andros@netapp.com>2010-10-20 00:18:03 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-10-24 18:07:10 -0400
commitb1f69b754ee312ec75f2c7ead0e6851cd9598cc2 (patch)
tree1d8e70abb2cd087e3b97f73d86db8b9568467378 /include/linux/nfs_fs_sb.h
parent974cec8ca0352eb5d281535b714cf194a606e98f (diff)
downloadop-kernel-dev-b1f69b754ee312ec75f2c7ead0e6851cd9598cc2.zip
op-kernel-dev-b1f69b754ee312ec75f2c7ead0e6851cd9598cc2.tar.gz
NFSv4.1: pnfs: add LAYOUTGET and GETDEVICEINFO infrastructure
Add the ability to actually send LAYOUTGET and GETDEVICEINFO. This also adds in the machinery to handle layout state and the deviceid cache. Note that GETDEVICEINFO is not called directly by the generic layer. Instead it is called by the drivers while parsing the LAYOUTGET opaque data in response to an unknown device id embedded therein. RFC 5661 only encodes device ids within the driver-specific opaque data. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Dean Hildebrand <dhildebz@umich.edu> Signed-off-by: Marc Eshel <eshel@almaden.ibm.com> Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Ricardo Labiaga <ricardo.labiaga@netapp.com> Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs_sb.h')
-rw-r--r--include/linux/nfs_fs_sb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 4d62f15..452d964 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -83,6 +83,7 @@ struct nfs_client {
u32 cl_exchange_flags;
struct nfs4_session *cl_session; /* sharred session */
struct list_head cl_layouts;
+ struct pnfs_deviceid_cache *cl_devid_cache; /* pNFS deviceid cache */
#endif /* CONFIG_NFS_V4_1 */
#ifdef CONFIG_NFS_FSCACHE
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