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authorPavel Shilovsky <pshilovsky@samba.org>2012-05-23 16:14:34 +0400
committerSteve French <smfrench@gmail.com>2012-07-24 00:32:48 -0500
commita891f0f895f4a760fdb99636fab05e60597b8224 (patch)
tree0f911230af82d5b8cbbbbbb423b032ae8f5dc957 /fs/cifs/cifsglob.h
parent316cf94a910f6f93d43cc574359d163ccae098a3 (diff)
CIFS: Extend credit mechanism to process request type
Split all requests to echos, oplocks and others - each group uses its own credit slot. This is indicated by new flags CIFS_ECHO_OP and CIFS_OBREAK_OP that are not used now for CIFS. This change is required to support SMB2 protocol because of different processing of these commands. Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/cifsglob.h')
-rw-r--r--fs/cifs/cifsglob.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 2aac4e5fb334..844b77c2bc9c 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -171,9 +171,11 @@ struct smb_version_operations {
/* check response: verify signature, map error */
int (*check_receive)(struct mid_q_entry *, struct TCP_Server_Info *,
bool);
- void (*add_credits)(struct TCP_Server_Info *, const unsigned int);
+ void (*add_credits)(struct TCP_Server_Info *, const unsigned int,
+ const int);
void (*set_credits)(struct TCP_Server_Info *, const int);
- int * (*get_credits_field)(struct TCP_Server_Info *);
+ int * (*get_credits_field)(struct TCP_Server_Info *, const int);
+ unsigned int (*get_credits)(struct mid_q_entry *);
__u64 (*get_next_mid)(struct TCP_Server_Info *);
/* data offset from read response message */
unsigned int (*read_data_offset)(char *);
@@ -392,9 +394,10 @@ has_credits(struct TCP_Server_Info *server, int *credits)
}
static inline void
-add_credits(struct TCP_Server_Info *server, const unsigned int add)
+add_credits(struct TCP_Server_Info *server, const unsigned int add,
+ const int optype)
{
- server->ops->add_credits(server, add);
+ server->ops->add_credits(server, add, optype);
}
static inline void
@@ -957,6 +960,11 @@ static inline void free_dfs_info_array(struct dfs_info3_param *param,
#define CIFS_LARGE_BUF_OP 0x020 /* large request buffer */
#define CIFS_NO_RESP 0x040 /* no response buffer required */
+/* Type of request operation */
+#define CIFS_ECHO_OP 0x080 /* echo request */
+#define CIFS_OBREAK_OP 0x0100 /* oplock break request */
+#define CIFS_OP_MASK 0x0180 /* mask request type */
+
/* Security Flags: indicate type of session setup needed */
#define CIFSSEC_MAY_SIGN 0x00001
#define CIFSSEC_MAY_NTLM 0x00002