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authorSteve French <sfrench@us.ibm.com>2011-08-09 18:44:44 +0000
committerSteve French <sfrench@us.ibm.com>2011-08-11 18:23:45 +0000
commit789e66612367f9975d704c9e4990025cbbbb45ec (patch)
treea3c466f3137ac319b9e15656a1d72aabd7050126 /fs/cifs/transport.c
parente6a99d312687a42c077a9b8cb5e757f186edb1b9 (diff)
downloadop-kernel-dev-789e66612367f9975d704c9e4990025cbbbb45ec.zip
op-kernel-dev-789e66612367f9975d704c9e4990025cbbbb45ec.tar.gz
[CIFS] Cleanup use of CONFIG_CIFS_STATS2 ifdef to make transport routines more readable
Christoph had requested that the stats related code (in CONFIG_CIFS_STATS2) be moved into helpers to make code flow more readable. This patch should help. For example the following section from transport.c spin_unlock(&GlobalMid_Lock); atomic_inc(&ses->server->num_waiters); wait_event(ses->server->request_q, atomic_read(&ses->server->inFlight) < cifs_max_pending); atomic_dec(&ses->server->num_waiters); spin_lock(&GlobalMid_Lock); becomes simpler (with the patch below): spin_unlock(&GlobalMid_Lock); cifs_num_waiters_inc(server); wait_event(server->request_q, atomic_read(&server->inFlight) < cifs_max_pending); cifs_num_waiters_dec(server); spin_lock(&GlobalMid_Lock); Reviewed-by: Jeff Layton <jlayton@redhat.com> CC: Christoph Hellwig <hch@infradead.org> Signed-off-by: Steve French <sfrench@us.ibm.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Diffstat (limited to 'fs/cifs/transport.c')
-rw-r--r--fs/cifs/transport.c51
1 files changed, 17 insertions, 34 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index c1b9c4b..10ca6b2 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -266,15 +266,11 @@ static int wait_for_free_request(struct TCP_Server_Info *server,
while (1) {
if (atomic_read(&server->inFlight) >= cifs_max_pending) {
spin_unlock(&GlobalMid_Lock);
-#ifdef CONFIG_CIFS_STATS2
- atomic_inc(&server->num_waiters);
-#endif
+ cifs_num_waiters_inc(server);
wait_event(server->request_q,
atomic_read(&server->inFlight)
< cifs_max_pending);
-#ifdef CONFIG_CIFS_STATS2
- atomic_dec(&server->num_waiters);
-#endif
+ cifs_num_waiters_dec(server);
spin_lock(&GlobalMid_Lock);
} else {
if (server->tcpStatus == CifsExiting) {
@@ -381,15 +377,13 @@ cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
mid->callback = callback;
mid->callback_data = cbdata;
mid->midState = MID_REQUEST_SUBMITTED;
-#ifdef CONFIG_CIFS_STATS2
- atomic_inc(&server->inSend);
-#endif
+
+ cifs_in_send_inc(server);
rc = smb_sendv(server, iov, nvec);
-#ifdef CONFIG_CIFS_STATS2
- atomic_dec(&server->inSend);
- mid->when_sent = jiffies;
-#endif
+ cifs_in_send_dec(server);
+ cifs_save_when_sent(mid);
mutex_unlock(&server->srv_mutex);
+
if (rc)
goto out_err;
@@ -575,14 +569,10 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
}
midQ->midState = MID_REQUEST_SUBMITTED;
-#ifdef CONFIG_CIFS_STATS2
- atomic_inc(&ses->server->inSend);
-#endif
+ cifs_in_send_inc(ses->server);
rc = smb_sendv(ses->server, iov, n_vec);
-#ifdef CONFIG_CIFS_STATS2
- atomic_dec(&ses->server->inSend);
- midQ->when_sent = jiffies;
-#endif
+ cifs_in_send_dec(ses->server);
+ cifs_save_when_sent(midQ);
mutex_unlock(&ses->server->srv_mutex);
@@ -703,14 +693,11 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
}
midQ->midState = MID_REQUEST_SUBMITTED;
-#ifdef CONFIG_CIFS_STATS2
- atomic_inc(&ses->server->inSend);
-#endif
+
+ cifs_in_send_inc(ses->server);
rc = smb_send(ses->server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
-#ifdef CONFIG_CIFS_STATS2
- atomic_dec(&ses->server->inSend);
- midQ->when_sent = jiffies;
-#endif
+ cifs_in_send_dec(ses->server);
+ cifs_save_when_sent(midQ);
mutex_unlock(&ses->server->srv_mutex);
if (rc < 0)
@@ -843,14 +830,10 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
}
midQ->midState = MID_REQUEST_SUBMITTED;
-#ifdef CONFIG_CIFS_STATS2
- atomic_inc(&ses->server->inSend);
-#endif
+ cifs_in_send_inc(ses->server);
rc = smb_send(ses->server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
-#ifdef CONFIG_CIFS_STATS2
- atomic_dec(&ses->server->inSend);
- midQ->when_sent = jiffies;
-#endif
+ cifs_in_send_dec(ses->server);
+ cifs_save_when_sent(midQ);
mutex_unlock(&ses->server->srv_mutex);
if (rc < 0) {
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