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authorBenny Halevy <bhalevy@panasas.com>2011-05-20 10:45:05 +0200
committerBoaz Harrosh <bharrosh@panasas.com>2011-05-29 12:09:47 +0300
commit67d51f65bde233b17de304baec4f7c4d086471fe (patch)
treed9a5e9f93e9ab85e04350166a94a521c780da229 /fs/nfs/nfs4filelayout.h
parent3b6445a6f68b839d1b437756b9c72312e33339b2 (diff)
NFSv4.1: use struct nfs_client to qualify deviceid
deviceids are unique per server, per layout type. Therefore, in the global cache in the files layout driver deviceids from different servers may clash so we need to qualify them with a struct nfs_client that represents the nfs server that returned the deviceid. Introduced in 2.6.39 commit ea8eecdd "NFSv4.1 move deviceid cache to filelayout driver" Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Diffstat (limited to 'fs/nfs/nfs4filelayout.h')
-rw-r--r--fs/nfs/nfs4filelayout.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h
index 2b461d77b43..301b95568bd 100644
--- a/fs/nfs/nfs4filelayout.h
+++ b/fs/nfs/nfs4filelayout.h
@@ -60,6 +60,7 @@ struct nfs4_pnfs_ds {
struct nfs4_file_layout_dsaddr {
struct hlist_node node;
+ struct nfs_client *nfs_client;
struct nfs4_deviceid deviceid;
atomic_t ref;
unsigned long flags;
@@ -101,7 +102,7 @@ u32 nfs4_fl_calc_ds_index(struct pnfs_layout_segment *lseg, u32 j);
struct nfs4_pnfs_ds *nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg,
u32 ds_idx);
extern struct nfs4_file_layout_dsaddr *
-nfs4_fl_find_get_deviceid(struct nfs4_deviceid *dev_id);
+nfs4_fl_find_get_deviceid(struct nfs_client *, struct nfs4_deviceid *dev_id);
extern void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr);
struct nfs4_file_layout_dsaddr *
get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags);