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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-08-16 01:20:10 -0400
committerEric Van Hensbergen <ericvh@gmail.com>2011-10-24 12:13:11 -0400
commitabfa034e4b8ed0046fa589769e9840af645bc4ba (patch)
tree146195e891a2fd63e3fc91f803547abb904b2087 /include/net/9p/transport.h
parentc3b92c8787367a8bb53d57d9789b558f1295cc96 (diff)
fs/9p: Update zero-copy implementation in 9p
* remove lot of update to different data structure * add a seperate callback for zero copy request. * above makes non zero copy code path simpler * remove conditionalizing TREAD/TREADDIR/TWRITE in the zero copy path * Fix the dotu p9_check_errors with zero copy. Add sufficient doc around * Add support for both in and output buffers in zero copy callback * pin and unpin pages in the same context * use helpers instead of defining page offset and rest of page ourself * Fix mem leak in p9_check_errors * Remove 'E' and 'F' in p9pdu_vwritef Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'include/net/9p/transport.h')
-rw-r--r--include/net/9p/transport.h10
1 files changed, 2 insertions, 8 deletions
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 83531ebeee9..adcbb20f651 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -26,13 +26,6 @@
26#ifndef NET_9P_TRANSPORT_H 26#ifndef NET_9P_TRANSPORT_H
27#define NET_9P_TRANSPORT_H 27#define NET_9P_TRANSPORT_H
28 28
29#define P9_TRANS_PREF_PAYLOAD_MASK 0x1
30
31/* Default. Add Payload to PDU before sending it down to transport layer */
32#define P9_TRANS_PREF_PAYLOAD_DEF 0x0
33/* Send pay load separately to transport layer along with PDU.*/
34#define P9_TRANS_PREF_PAYLOAD_SEP 0x1
35
36/** 29/**
37 * struct p9_trans_module - transport module interface 30 * struct p9_trans_module - transport module interface
38 * @list: used to maintain a list of currently available transports 31 * @list: used to maintain a list of currently available transports
@@ -56,13 +49,14 @@ struct p9_trans_module {
56 struct list_head list; 49 struct list_head list;
57 char *name; /* name of transport */ 50 char *name; /* name of transport */
58 int maxsize; /* max message size of transport */ 51 int maxsize; /* max message size of transport */
59 int pref; /* Preferences of this transport */
60 int def; /* this transport should be default */ 52 int def; /* this transport should be default */
61 struct module *owner; 53 struct module *owner;
62 int (*create)(struct p9_client *, const char *, char *); 54 int (*create)(struct p9_client *, const char *, char *);
63 void (*close) (struct p9_client *); 55 void (*close) (struct p9_client *);
64 int (*request) (struct p9_client *, struct p9_req_t *req); 56 int (*request) (struct p9_client *, struct p9_req_t *req);
65 int (*cancel) (struct p9_client *, struct p9_req_t *req); 57 int (*cancel) (struct p9_client *, struct p9_req_t *req);
58 int (*zc_request)(struct p9_client *, struct p9_req_t *,
59 char *, char *, int , int, int, int);
66}; 60};
67 61
68void v9fs_register_trans(struct p9_trans_module *m); 62void v9fs_register_trans(struct p9_trans_module *m);