write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/mm/init-mm.c
..
..
@@ -5,10 +5,11 @@
5
5
 #include <linux/spinlock.h>
6
6
 #include <linux/list.h>
7
7
 #include <linux/cpumask.h>
8
+#include <linux/mman.h>
9
+#include <linux/pgtable.h>
8
10
 
9
11
 #include <linux/atomic.h>
10
12
 #include <linux/user_namespace.h>
11
-#include <asm/pgtable.h>
12
13
 #include <asm/mmu.h>
13
14
 
14
15
 #ifndef INIT_MM_CONTEXT
..
..
@@ -27,14 +28,18 @@
27
28
  */
28
29
 struct mm_struct init_mm = {
29
30
 	.mm_rb		= RB_ROOT,
31
+#ifdef CONFIG_SPECULATIVE_PAGE_FAULT
32
+	.mm_rb_lock	= __RW_LOCK_UNLOCKED(init_mm.mm_rb_lock),
33
+#endif
30
34
 	.pgd		= swapper_pg_dir,
31
35
 	.mm_users	= ATOMIC_INIT(2),
32
36
 	.mm_count	= ATOMIC_INIT(1),
33
-	.mmap_sem	= __RWSEM_INITIALIZER(init_mm.mmap_sem),
37
+	.write_protect_seq = SEQCNT_ZERO(init_mm.write_protect_seq),
38
+	MMAP_LOCK_INITIALIZER(init_mm)
34
39
 	.page_table_lock =  __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
35
40
 	.arg_lock	=  __SPIN_LOCK_UNLOCKED(init_mm.arg_lock),
36
41
 	.mmlist		= LIST_HEAD_INIT(init_mm.mmlist),
37
42
 	.user_ns	= &init_user_ns,
38
-	.cpu_bitmap	= { [BITS_TO_LONGS(NR_CPUS)] = 0},
43
+	.cpu_bitmap	= CPU_BITS_NONE,
39
44
 	INIT_MM_CONTEXT(init_mm)
40
45
 };