diff options
Diffstat (limited to 'fs/cifs/transport.c')
| -rw-r--r-- | fs/cifs/transport.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index d8865fbd876a..981ea0d8b9cd 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -59,7 +59,9 @@ AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses) temp->pid = current->pid; temp->command = smb_buffer->Command; cFYI(1, ("For smb_command %d", temp->command)); - do_gettimeofday(&temp->when_sent); + /* do_gettimeofday(&temp->when_sent);*/ /* easier to use jiffies */ + /* when mid allocated can be before when sent */ + temp->when_alloc = jiffies; temp->ses = ses; temp->tsk = current; } @@ -75,6 +77,9 @@ AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses) static void DeleteMidQEntry(struct mid_q_entry *midEntry) { +#ifdef CONFIG_CIFS_STATS2 + unsigned long now; +#endif spin_lock(&GlobalMid_Lock); midEntry->midState = MID_FREE; list_del(&midEntry->qhead); @@ -84,6 +89,22 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) cifs_buf_release(midEntry->resp_buf); else cifs_small_buf_release(midEntry->resp_buf); +#ifdef CONFIG_CIFS_STATS2 + now = jiffies; + /* commands taking longer than one second are indications that + something is wrong, unless it is quite a slow link or server */ + if((now - midEntry->when_alloc) > HZ) { + if((cifsFYI & CIFS_TIMER) && + (midEntry->command != SMB_COM_LOCKING_ANDX)) { + printk(KERN_DEBUG " CIFS slow rsp: cmd %d mid %d", + midEntry->command, midEntry->mid); + printk(" A: 0x%lx S: 0x%lx R: 0x%lx\n", + now - midEntry->when_alloc, + now - midEntry->when_sent, + now - midEntry->when_received); + } + } +#endif mempool_free(midEntry, cifs_mid_poolp); } @@ -382,6 +403,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, (struct sockaddr *) &(ses->server->addr.sockAddr)); #ifdef CONFIG_CIFS_STATS2 atomic_dec(&ses->server->inSend); + midQ->when_sent = jiffies; #endif if(rc < 0) { DeleteMidQEntry(midQ); @@ -646,6 +668,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, (struct sockaddr *) &(ses->server->addr.sockAddr)); #ifdef CONFIG_CIFS_STATS2 atomic_dec(&ses->server->inSend); + midQ->when_sent = jiffies; #endif if(rc < 0) { DeleteMidQEntry(midQ); |
