[LU-10883] llog backup files processing is not skipped because of string сomparison error

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.13.0
• Affects Version/s: Lustre 2.11.0
• Severity: 3
• Assignee: Artem Blagodarenko (Inactive)
• Reporter: Artem Blagodarenko (Inactive)

Description

Buggy code was introduced in LU-7160 fix

		/* filter out ".bak" files */
		/* sizeof(".bak") - 1 == 3 */
		if (key_sz >= 3 &&
		    !memcmp(".bak", key + key_sz - 3, 3)) {
			CDEBUG(D_MGS, "Skipping backup file %.*s\n",
			       key_sz, key);
			goto next;
		}

4 last key's bytes need to be compared with ".bak"

Issue Links

• is related to: LU-11648 Create white list for CONFIGS directory files processing
• is related to: LU-7160 Saved by change_nids .bak files on MGS should never be processed