linux-6.12.1/mm/kmemleak.c

29  *   (atomic or kmemleak_lock). This lock is also held when scanning the
32  *   lock like kmemleak_lock during scanning.
36  *   scanned. This list is only modified during a scanning episode when the
41  *   modifications to the memory scanning parameters including the scan_thread
112 #define SECS_SCAN_WAIT		600	/* subsequent auto scanning delay */
117 /* scanning area inside a memory block */
237 /* enables or disables the task stacks scanning */
239 /* protects the memory scanning, parameters and debug/kmemleak file access */
938  * Add a scanning area to the object. If at least one such area is added,
965 		pr_warn_once("Cannot allocate a scan area, scanning the full object\n");  in add_scan_area()
1025 		kmemleak_warn("Not scanning unknown object at 0x%08lx\n", ptr);  in object_no_scan()
1040  *		scanning a number of references less than @min_count is found,
1424  * Memory scanning is a long process and it needs to be interruptible. This
1670 	/* per-cpu sections scanning */  in kmemleak_scan()
1677 	 * Struct page scanning for each node.  in kmemleak_scan()
1706 	 * Scanning the task stacks (may introduce false negatives).  in kmemleak_scan()
1761 	 * If scanning was stopped do not report any new unreferenced objects.  in kmemleak_scan()
1767 	 * Scanning result reporting.  in kmemleak_scan()
1805  * Thread function performing automatic memory scanning. Unreferenced objects
1812 	pr_info("Automatic memory scanning thread started\n");  in kmemleak_scan_thread()
1837 	pr_info("Automatic memory scanning thread ended\n");  in kmemleak_scan_thread()
1843  * Start the automatic memory scanning thread. This function must be called
1858  * Stop the automatic memory scanning thread.
1871  * a memory scanning when the pos argument points to the first position.
2013  *   stack=on	- enable the task stacks scanning
2014  *   stack=off	- disable the tasks stacks scanning
2015  *   scan=on	- start the automatic memory scanning thread
2016  *   scan=off	- stop the automatic memory scanning thread
2017  *   scan=...	- set the automatic memory scanning period in seconds (0 to
2122  * Stop the memory scanning thread and free the kmemleak internal objects if