From: Steve French Date: Wed, 27 Feb 2019 03:26:20 +0000 (-0600) Subject: smb3: add dynamic trace point for smb3_cmd_enter X-Git-Tag: v5.1-rc1~90^2~9 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=53a3e0d96c708bca1607507ab2470a3c911c8c81;p=tomoyo%2Ftomoyo-test1.git smb3: add dynamic trace point for smb3_cmd_enter Add tracepoint before sending an SMB3 command on the wire (ie add an smb3_cmd_enter tracepoint). This allows us to look in much more detail at response times (between request and response). Signed-off-by: Steve French Reviewed-by: Pavel Shilovsky --- diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c index 63264db78b89..fa1fec2e3c8d 100644 --- a/fs/cifs/smb2transport.c +++ b/fs/cifs/smb2transport.c @@ -602,6 +602,8 @@ smb2_mid_entry_alloc(const struct smb2_sync_hdr *shdr, atomic_inc(&midCount); temp->mid_state = MID_REQUEST_ALLOCATED; + trace_smb3_cmd_enter(shdr->TreeId, shdr->SessionId, + le16_to_cpu(shdr->Command), temp->mid); return temp; } @@ -636,6 +638,7 @@ smb2_get_mid_entry(struct cifs_ses *ses, struct smb2_sync_hdr *shdr, spin_lock(&GlobalMid_Lock); list_add_tail(&(*mid)->qhead, &ses->server->pending_mid_q); spin_unlock(&GlobalMid_Lock); + return 0; } diff --git a/fs/cifs/trace.h b/fs/cifs/trace.h index b6352b68f18b..2a0be3e1927f 100644 --- a/fs/cifs/trace.h +++ b/fs/cifs/trace.h @@ -275,6 +275,7 @@ DEFINE_EVENT(smb3_cmd_done_class, smb3_##name, \ __u64 mid), \ TP_ARGS(tid, sesid, cmd, mid)) +DEFINE_SMB3_CMD_DONE_EVENT(cmd_enter); DEFINE_SMB3_CMD_DONE_EVENT(cmd_done); DEFINE_SMB3_CMD_DONE_EVENT(ses_expired);