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authorPeng Tao <tao.peng@primarydata.com>2014-05-29 21:06:57 +0800
committerTom Haynes <loghyr@primarydata.com>2015-02-03 11:06:32 -0800
commit875ae0694be48f3e3bdddd435b79abf52b680299 (patch)
tree67d05d85741b68eddacdf048072257901185e791 /fs/nfs/pnfs.h
parent085d1e33a6a8495d9afa58ad2b8b7ea74d613515 (diff)
downloadlinux-875ae0694be48f3e3bdddd435b79abf52b680299.tar.bz2
nfs41: pull data server cache from file layout to generic pnfs
Also pull nfs4_pnfs_ds_addr and nfs4_pnfs_ds to generic pnfs. They can all be reused by flexfile layout as well. Reviewed-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Tom Haynes <Thomas.Haynes@primarydata.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index e94f6050e9b1..b0168f1dd072 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -40,6 +40,24 @@ enum {
NFS_LSEG_LAYOUTCOMMIT, /* layoutcommit bit set for layoutcommit */
};
+/* Individual ip address */
+struct nfs4_pnfs_ds_addr {
+ struct sockaddr_storage da_addr;
+ size_t da_addrlen;
+ struct list_head da_node; /* nfs4_pnfs_dev_hlist dev_dslist */
+ char *da_remotestr; /* human readable addr+port */
+};
+
+struct nfs4_pnfs_ds {
+ struct list_head ds_node; /* nfs4_pnfs_dev_hlist dev_dslist */
+ char *ds_remotestr; /* comma sep list of addrs */
+ struct list_head ds_addrs;
+ struct nfs_client *ds_clp;
+ atomic_t ds_count;
+ unsigned long ds_state;
+#define NFS4DS_CONNECTING 0 /* ds is establishing connection */
+};
+
struct pnfs_layout_segment {
struct list_head pls_list;
struct list_head pls_lc_list;
@@ -291,6 +309,9 @@ int pnfs_generic_commit_pagelist(struct inode *inode,
int how));
int pnfs_generic_scan_commit_lists(struct nfs_commit_info *cinfo, int max);
void pnfs_generic_write_commit_done(struct rpc_task *task, void *data);
+void nfs4_pnfs_ds_put(struct nfs4_pnfs_ds *ds);
+struct nfs4_pnfs_ds *nfs4_pnfs_ds_add(struct list_head *dsaddrs,
+ gfp_t gfp_flags);
static inline struct nfs4_deviceid_node *
nfs4_get_deviceid(struct nfs4_deviceid_node *d)