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Diffstat (limited to '')
| -rw-r--r-- | fs/cifs/transport.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 333729cf46cd..a1a1199578d5 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -113,9 +113,18 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) 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 (time_after(now, midEntry->when_alloc + HZ) && + /* + * commands taking longer than one second (default) can be indications + * that something is wrong, unless it is quite a slow link or a very + * busy server. Note that this calc is unlikely or impossible to wrap + * as long as slow_rsp_threshold is not set way above recommended max + * value (32767 ie 9 hours) and is generally harmless even if wrong + * since only affects debug counters - so leaving the calc as simple + * comparison rather than doing multiple conversions and overflow + * checks + */ + if ((slow_rsp_threshold != 0) && + time_after(now, midEntry->when_alloc + (slow_rsp_threshold * HZ)) && (midEntry->command != command)) { /* smb2slowcmd[NUMBER_OF_SMB2_COMMANDS] counts by command */ if ((le16_to_cpu(midEntry->command) < NUMBER_OF_SMB2_COMMANDS) && |