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cifs: clean up sync_mid_result

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Make it use a switch statement based on the value of the midStatus. If
the resp_buf is set, then MID_RESPONSE_RECEIVED is too.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton 2011-01-11 07:24:02 -05:00 committed by Steve French
parent dad255b182
commit 74dd92a881
1 changed files with 18 additions and 17 deletions
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35
fs/cifs/transport.c
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@ -363,28 +363,29 @@ sync_mid_result(struct mid_q_entry *mid, struct TCP_Server_Info *server)
{
int rc = 0;
spin_lock(&GlobalMid_Lock);
cFYI(1, "%s: cmd=%d mid=%d state=%d", __func__, mid->command,
mid->mid, mid->midState);
if (mid->resp_buf) {
spin_lock(&GlobalMid_Lock);
switch (mid->midState) {
case MID_RESPONSE_RECEIVED:
spin_unlock(&GlobalMid_Lock);
return rc;
}
cERROR(1, "No response to cmd %d mid %d", mid->command, mid->mid);
if (mid->midState == MID_REQUEST_SUBMITTED) {
if (server->tcpStatus == CifsExiting)
case MID_REQUEST_SUBMITTED:
/* socket is going down, reject all calls */
if (server->tcpStatus == CifsExiting) {
cERROR(1, "%s: canceling mid=%d cmd=0x%x state=%d",
__func__, mid->mid, mid->command, mid->midState);
rc = -EHOSTDOWN;
else
mid->midState = MID_RETRY_NEEDED;
}
if (rc != -EHOSTDOWN) {
if (mid->midState == MID_RETRY_NEEDED) {
rc = -EAGAIN;
cFYI(1, "marking request for retry");
} else {
rc = -EIO;
break;
}
case MID_RETRY_NEEDED:
rc = -EAGAIN;
break;
default:
cERROR(1, "%s: invalid mid state mid=%d state=%d", __func__,
mid->mid, mid->midState);
rc = -EIO;
}
spin_unlock(&GlobalMid_Lock);