[LU-7567] lfs_changelog() misprints timestamps

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.10.0
• Affects Version/s: Lustre 2.8.0
• Labels: easy lfs patch
• Severity: 3
• Assignee: WC Triage
• Reporter: John Hammond

Description

The cr_time field of a changelog record is (secs << 30) + nsecs. So lfs_changelog() should use ".09d" when printing the fractional part. Instead it uses ".06d":

		secs = rec->cr_time >> 30;
                gmtime_r(&secs, &ts);
		printf(LPU64" %02d%-5s %02d:%02d:%02d.%06d %04d.%02d.%02d "
		       "0x%x t="DFID, rec->cr_index, rec->cr_type,
        	       changelog_type2str(rec->cr_type),
                       ts.tm_hour, ts.tm_min, ts.tm_sec,
		       (int)(rec->cr_time & ((1<<30) - 1)),
                       ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
		       rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));