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authorGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
committerGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
commitc71c03bda1e86c9d5198c5d83f712e695c4f2a1e (patch)
treeecb166cb3e2b7e2adb3b5e292245fefd23381ac8 /fs/nfs/callback.h
parentea53c912f8a86a8567697115b6a0d8152beee5c8 (diff)
parent6a00f206debf8a5c8899055726ad127dbeeed098 (diff)
Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp
Conflicts: litmus/sched_cedf.c
Diffstat (limited to 'fs/nfs/callback.h')
-rw-r--r--fs/nfs/callback.h76
1 files changed, 68 insertions, 8 deletions
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 85a7cfd1b8dd..b257383bb565 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -7,6 +7,7 @@
7 */ 7 */
8#ifndef __LINUX_FS_NFS_CALLBACK_H 8#ifndef __LINUX_FS_NFS_CALLBACK_H
9#define __LINUX_FS_NFS_CALLBACK_H 9#define __LINUX_FS_NFS_CALLBACK_H
10#include <linux/sunrpc/svc.h>
10 11
11#define NFS4_CALLBACK 0x40000000 12#define NFS4_CALLBACK 0x40000000
12#define NFS4_CALLBACK_XDRSIZE 2048 13#define NFS4_CALLBACK_XDRSIZE 2048
@@ -34,10 +35,16 @@ enum nfs4_callback_opnum {
34 OP_CB_ILLEGAL = 10044, 35 OP_CB_ILLEGAL = 10044,
35}; 36};
36 37
38struct cb_process_state {
39 __be32 drc_status;
40 struct nfs_client *clp;
41};
42
37struct cb_compound_hdr_arg { 43struct cb_compound_hdr_arg {
38 unsigned int taglen; 44 unsigned int taglen;
39 const char *tag; 45 const char *tag;
40 unsigned int minorversion; 46 unsigned int minorversion;
47 unsigned int cb_ident; /* v4.0 callback identifier */
41 unsigned nops; 48 unsigned nops;
42}; 49};
43 50
@@ -103,14 +110,23 @@ struct cb_sequenceres {
103 uint32_t csr_target_highestslotid; 110 uint32_t csr_target_highestslotid;
104}; 111};
105 112
106extern unsigned nfs4_callback_sequence(struct cb_sequenceargs *args, 113extern __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
107 struct cb_sequenceres *res); 114 struct cb_sequenceres *res,
115 struct cb_process_state *cps);
108 116
109extern int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation, 117extern int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation,
110 const nfs4_stateid *stateid); 118 const nfs4_stateid *stateid);
111 119
112#define RCA4_TYPE_MASK_RDATA_DLG 0 120#define RCA4_TYPE_MASK_RDATA_DLG 0
113#define RCA4_TYPE_MASK_WDATA_DLG 1 121#define RCA4_TYPE_MASK_WDATA_DLG 1
122#define RCA4_TYPE_MASK_DIR_DLG 2
123#define RCA4_TYPE_MASK_FILE_LAYOUT 3
124#define RCA4_TYPE_MASK_BLK_LAYOUT 4
125#define RCA4_TYPE_MASK_OBJ_LAYOUT_MIN 8
126#define RCA4_TYPE_MASK_OBJ_LAYOUT_MAX 9
127#define RCA4_TYPE_MASK_OTHER_LAYOUT_MIN 12
128#define RCA4_TYPE_MASK_OTHER_LAYOUT_MAX 15
129#define RCA4_TYPE_MASK_ALL 0xf31f
114 130
115struct cb_recallanyargs { 131struct cb_recallanyargs {
116 struct sockaddr *craa_addr; 132 struct sockaddr *craa_addr;
@@ -118,25 +134,69 @@ struct cb_recallanyargs {
118 uint32_t craa_type_mask; 134 uint32_t craa_type_mask;
119}; 135};
120 136
121extern unsigned nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy); 137extern __be32 nfs4_callback_recallany(struct cb_recallanyargs *args,
138 void *dummy,
139 struct cb_process_state *cps);
122 140
123struct cb_recallslotargs { 141struct cb_recallslotargs {
124 struct sockaddr *crsa_addr; 142 struct sockaddr *crsa_addr;
125 uint32_t crsa_target_max_slots; 143 uint32_t crsa_target_max_slots;
126}; 144};
127extern unsigned nfs4_callback_recallslot(struct cb_recallslotargs *args, 145extern __be32 nfs4_callback_recallslot(struct cb_recallslotargs *args,
128 void *dummy); 146 void *dummy,
147 struct cb_process_state *cps);
148
149struct cb_layoutrecallargs {
150 struct sockaddr *cbl_addr;
151 uint32_t cbl_recall_type;
152 uint32_t cbl_layout_type;
153 uint32_t cbl_layoutchanged;
154 union {
155 struct {
156 struct nfs_fh cbl_fh;
157 struct pnfs_layout_range cbl_range;
158 nfs4_stateid cbl_stateid;
159 };
160 struct nfs_fsid cbl_fsid;
161 };
162};
129 163
130#endif /* CONFIG_NFS_V4_1 */ 164extern unsigned nfs4_callback_layoutrecall(
165 struct cb_layoutrecallargs *args,
166 void *dummy, struct cb_process_state *cps);
167
168extern void nfs4_check_drain_bc_complete(struct nfs4_session *ses);
169extern void nfs4_cb_take_slot(struct nfs_client *clp);
131 170
132extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res); 171struct cb_devicenotifyitem {
133extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy); 172 uint32_t cbd_notify_type;
173 uint32_t cbd_layout_type;
174 struct nfs4_deviceid cbd_dev_id;
175 uint32_t cbd_immediate;
176};
177
178struct cb_devicenotifyargs {
179 int ndevs;
180 struct cb_devicenotifyitem *devs;
181};
134 182
183extern __be32 nfs4_callback_devicenotify(
184 struct cb_devicenotifyargs *args,
185 void *dummy, struct cb_process_state *cps);
186
187#endif /* CONFIG_NFS_V4_1 */
188extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *);
189extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
190 struct cb_getattrres *res,
191 struct cb_process_state *cps);
192extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
193 struct cb_process_state *cps);
135#ifdef CONFIG_NFS_V4 194#ifdef CONFIG_NFS_V4
136extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt); 195extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
137extern void nfs_callback_down(int minorversion); 196extern void nfs_callback_down(int minorversion);
138extern int nfs4_validate_delegation_stateid(struct nfs_delegation *delegation, 197extern int nfs4_validate_delegation_stateid(struct nfs_delegation *delegation,
139 const nfs4_stateid *stateid); 198 const nfs4_stateid *stateid);
199extern int nfs4_set_callback_sessionid(struct nfs_client *clp);
140#endif /* CONFIG_NFS_V4 */ 200#endif /* CONFIG_NFS_V4 */
141/* 201/*
142 * nfs41: Callbacks are expected to not cause substantial latency, 202 * nfs41: Callbacks are expected to not cause substantial latency,