diff options
| author | Steve French | 2020-10-19 18:18:15 -0500 |
|---|---|---|
| committer | Steve French | 2020-10-20 11:50:42 -0500 |
| commit | 9eec21bfbe9096141f15c624d3d0c2142121f6cb (patch) | |
| tree | ccff1a0a2a1dd876da6220d5395d13116a31f517 /fs/cifs/trace.h | |
| parent | acf96fef46f271642b90aa658ba49e33ae34ddf0 (diff) | |
smb3: add dynamic trace point to trace when credits obtained
SMB3 crediting is used for flow control, and it can be useful to
trace for problem determination how many credits were acquired
and for which operation.
Here is an example ("trace-cmd record -e *add_credits"):
cifsd-9522 [010] .... 5995.202712: smb3_add_credits:
server=localhost current_mid=0x12 credits=373 credits_to_add=10
cifsd-9522 [010] .... 5995.204040: smb3_add_credits:
server=localhost current_mid=0x15 credits=400 credits_to_add=30
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/trace.h')
| -rw-r--r-- | fs/cifs/trace.h | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/cifs/trace.h b/fs/cifs/trace.h index eef4b08c7208..90e0fab69bb8 100644 --- a/fs/cifs/trace.h +++ b/fs/cifs/trace.h @@ -878,33 +878,39 @@ DEFINE_SMB3_RECONNECT_EVENT(partial_send_reconnect); DECLARE_EVENT_CLASS(smb3_credit_class, TP_PROTO(__u64 currmid, char *hostname, - int credits), - TP_ARGS(currmid, hostname, credits), + int credits, + int credits_to_add), + TP_ARGS(currmid, hostname, credits, credits_to_add), TP_STRUCT__entry( __field(__u64, currmid) __field(char *, hostname) __field(int, credits) + __field(int, credits_to_add) ), TP_fast_assign( __entry->currmid = currmid; __entry->hostname = hostname; __entry->credits = credits; + __entry->credits_to_add = credits_to_add; ), - TP_printk("server=%s current_mid=0x%llx credits=%d", + TP_printk("server=%s current_mid=0x%llx credits=%d credits_to_add=%d", __entry->hostname, __entry->currmid, - __entry->credits) + __entry->credits, + __entry->credits_to_add) ) #define DEFINE_SMB3_CREDIT_EVENT(name) \ DEFINE_EVENT(smb3_credit_class, smb3_##name, \ TP_PROTO(__u64 currmid, \ char *hostname, \ - int credits), \ - TP_ARGS(currmid, hostname, credits)) + int credits, \ + int credits_to_add), \ + TP_ARGS(currmid, hostname, credits, credits_to_add)) DEFINE_SMB3_CREDIT_EVENT(reconnect_with_invalid_credits); DEFINE_SMB3_CREDIT_EVENT(credit_timeout); +DEFINE_SMB3_CREDIT_EVENT(add_credits); #endif /* _CIFS_TRACE_H */ |