mm: use VM_BUG_ON_MM where possible

Dump the contents of the relevant struct_mm when we hit the bug condition.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

kernel/fork.c

@@ -601,9 +601,8 @@ static void check_mm(struct mm_struct *mm)
 			printk(KERN_ALERT "BUG: Bad rss-counter state "
 					  "mm:%p idx:%d val:%ld\n", mm, i, x);
 	}
-
 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
-	VM_BUG_ON(mm->pmd_huge_pte);
+	VM_BUG_ON_MM(mm->pmd_huge_pte, mm);
 #endif
 }
 

kernel/sys.c

@@ -1634,7 +1634,7 @@ static int prctl_set_mm_exe_file_locked(struct mm_struct *mm, unsigned int fd)
 	struct inode *inode;
 	int err;
 
-	VM_BUG_ON(!rwsem_is_locked(&mm->mmap_sem));
+	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_sem), mm);
 
 	exe = fdget(fd);
 	if (!exe.file)