[PATCH 5/5] uprobes: use kmap_local_page() for temporary page mappings

[Keke Ming]

Replace deprecated kmap_atomic() with kmap_local_page().

Signed-off-by: Keke Ming <ming.j...@gmail.com>
---
 kernel/events/uprobes.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index d546d32390a8..a7d7d83ca1d7 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -179,16 +179,16 @@ bool __weak is_trap_insn(uprobe_opcode_t *insn)
 
 void uprobe_copy_from_page(struct page *page, unsigned long vaddr, void *dst, 
int len)
 {
-       void *kaddr = kmap_atomic(page);
+       void *kaddr = kmap_local_page(page);
        memcpy(dst, kaddr + (vaddr & ~PAGE_MASK), len);
-       kunmap_atomic(kaddr);
+       kunmap_local(kaddr);
 }
 
 static void copy_to_page(struct page *page, unsigned long vaddr, const void 
*src, int len)
 {
-       void *kaddr = kmap_atomic(page);
+       void *kaddr = kmap_local_page(page);
        memcpy(kaddr + (vaddr & ~PAGE_MASK), src, len);
-       kunmap_atomic(kaddr);
+       kunmap_local(kaddr);
 }
 
 static int verify_opcode(struct page *page, unsigned long vaddr, 
uprobe_opcode_t *insn,
@@ -323,7 +323,7 @@ __update_ref_ctr(struct mm_struct *mm, unsigned long vaddr, 
short d)
                return ret == 0 ? -EBUSY : ret;
        }
 
-       kaddr = kmap_atomic(page);
+       kaddr = kmap_local_page(page);
        ptr = kaddr + (vaddr & ~PAGE_MASK);
 
        if (unlikely(*ptr + d < 0)) {
@@ -336,7 +336,7 @@ __update_ref_ctr(struct mm_struct *mm, unsigned long vaddr, 
short d)
        *ptr += d;
        ret = 0;
 out:
-       kunmap_atomic(kaddr);
+       kunmap_local(kaddr);
        put_page(page);
        return ret;
 }
-- 
2.43.0