kmemleak: Remove some of the kmemleak false positives (2e1483c9) · Commits · 戴 / test

drivers/char/vt.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -104,6 +104,7 @@
		#include <linux/io.h>
		#include <asm/system.h>
		#include <linux/uaccess.h>
		#include <linux/kmemleak.h>

		#define MAX_NR_CON_DRIVER 16

		@@ -2880,6 +2881,12 @@ static int __init con_init(void)
		*/
		for (currcons = 0; currcons < MIN_NR_CONSOLES; currcons++) {
		vc_cons[currcons].d = vc = alloc_bootmem(sizeof(struct vc_data));
		/*
		* Kmemleak does not track the memory allocated via
		* alloc_bootmem() but this block contains pointers to
		* other blocks allocated via kmalloc.
		*/
		kmemleak_alloc(vc, sizeof(struct vc_data), 1, GFP_ATOMIC);
		INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
		visual_init(vc, currcons, 1);
		vc->vc_screenbuf = (unsigned short *)alloc_bootmem(vc->vc_screenbuf_size);

+6 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@
		#include <linux/uio.h>
		#include <linux/namei.h>
		#include <linux/log2.h>
		#include <linux/kmemleak.h>
		#include <asm/uaccess.h>
		#include "internal.h"

		@@ -492,6 +493,11 @@ void __init bdev_cache_init(void)
		bd_mnt = kern_mount(&bd_type);
		if (IS_ERR(bd_mnt))
		panic("Cannot create bdev pseudo-fs");
		/*
		* This vfsmount structure is only used to obtain the
		* blockdev_superblock, so tell kmemleak not to report it.
		*/
		kmemleak_not_leak(bd_mnt);
		blockdev_superblock = bd_mnt->mnt_sb; /* For writeback */
		}

+5 −0

Original line number	Diff line number	Diff line
		@@ -86,7 +86,12 @@ struct percpu_data {
		void *ptrs[1];
		};

		/* pointer disguising messes up the kmemleak objects tracking */
		#ifndef CONFIG_DEBUG_KMEMLEAK
		#define __percpu_disguise(pdata) (struct percpu_data *)~(unsigned long)(pdata)
		#else
		#define __percpu_disguise(pdata) (struct percpu_data *)(pdata)
		#endif

		#define per_cpu_ptr(ptr, cpu) \
		({ \