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[CIFS] Change notify support part 2

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Signed-off-by: Asser Ferno <asser@diku.dk>
Signed-off-by: Steve French <sfrench@us.ibm.com> and lightly modified
This commit is contained in:
Steve French 2005-08-24 17:10:36 -07:00
parent e2a98a7543
commit ff5dbd9ead
3 changed files with 34 additions and 0 deletions
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17
fs/cifs/cifsglob.h
View File

@ -391,6 +391,20 @@ struct oplock_q_entry {
__u16 netfid;
};
/* for pending dnotify requests */
struct dir_notify_req {
struct list_head lhead;
__le16 Pid;
__le16 PidHigh;
__u16 Mid;
__u16 Tid;
__u16 Uid;
__u16 netfid;
__u32 filter; /* CompletionFilter (for multishot) */
int multishot;
struct dentry * dentry;
};
#define MID_FREE 0
#define MID_REQUEST_ALLOCATED 1
#define MID_REQUEST_SUBMITTED 2
@ -459,6 +473,9 @@ GLOBAL_EXTERN rwlock_t GlobalSMBSeslock; /* protects list inserts on 3 above */
GLOBAL_EXTERN struct list_head GlobalOplock_Q;
GLOBAL_EXTERN struct list_head GlobalDnotifyReqList; /* Outstanding dir notify requests */
GLOBAL_EXTERN struct list_head GlobalDnotifyRsp_Q; /* Dir notify response queue */
/*
* Global transaction id (XID) information
*/

1
fs/cifs/cifspdu.h
View File

@ -53,6 +53,7 @@
#define SMB_COM_NT_TRANSACT 0xA0
#define SMB_COM_NT_TRANSACT_SECONDARY 0xA1
#define SMB_COM_NT_CREATE_ANDX 0xA2
#define SMB_COM_NT_CANCEL 0xA4 /* no response */
#define SMB_COM_NT_RENAME 0xA5 /* trivial response */
/* Transact2 subcommand codes */

16
fs/cifs/cifssmb.c
View File

@ -4015,6 +4015,22 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
(struct smb_hdr *) pSMBr, &bytes_returned, -1);
if (rc) {
cFYI(1, ("Error in Notify = %d", rc));
} else {
/* Add file to outstanding requests */
dnotify_req = (struct dir_notify_req *) kmalloc(
sizeof(struct dir_notify_req), GFP_KERNEL);
dnotify_req->Pid = pSMB->hdr.Pid;
dnotify_req->PidHigh = pSMB->hdr.PidHigh;
dnotify_req->Mid = pSMB->hdr.Mid;
dnotify_req->Tid = pSMB->hdr.Tid;
dnotify_req->Uid = pSMB->hdr.Uid;
dnotify_req->netfid = netfid;
dnotify_req->dentry = dentry;
dnotify_req->filter = filter;
dnotify_req->multishot = multishot;
spin_lock(&GlobalMid_Lock);
list_add_tail(&dnotify_req->lhead, &GlobalDnotifyReqList);
spin_unlock(&GlobalMid_Lock);
}
cifs_buf_release(pSMB);
return rc;