arm64/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()

Replace deprecated kmap_atomic() with kmap_local_page().

Signed-off-by: Keke Ming <ming.jvle@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Link: https://patch.msgid.link/20260103084243.195125-3-ming.jvle@gmail.com

diff --git a/arch/arm64/kernel/probes/uprobes.c b/arch/arm64/kernel/probes/uprobes.c
index 941668800aeae4e2fce90d93ea2f42815bc0fc7a..4c55bf832ec3ae446c7c2d91ec5cc3bb49557eb3 100644 (file)
--- a/arch/arm64/kernel/probes/uprobes.c
+++ b/arch/arm64/kernel/probes/uprobes.c
@@ -15,7 +15,7 @@
 void arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
                void *src, unsigned long len)
 {
-       void *xol_page_kaddr = kmap_atomic(page);
+       void *xol_page_kaddr = kmap_local_page(page);
        void *dst = xol_page_kaddr + (vaddr & ~PAGE_MASK);
 
        /*
@@ -32,7 +32,7 @@ void arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
        sync_icache_aliases((unsigned long)dst, (unsigned long)dst + len);
 
 done:
-       kunmap_atomic(xol_page_kaddr);
+       kunmap_local(xol_page_kaddr);
 }
 
 unsigned long uprobe_get_swbp_addr(struct pt_regs *regs)