mm: rename flush_icache_user_range to flush_icache_user_page

The function currently known as flush_icache_user_range only operates on
a single page.  Rename it to flush_icache_user_page as we'll need the
name flush_icache_user_range for something else soon.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20200515143646.3857579-20-hch@lst.deSigned-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/alpha/include/asm/cacheflush.h

@@ -35,7 +35,7 @@ extern void smp_imb(void);
 
 extern void __load_new_mm_context(struct mm_struct *);
 static inline void
-flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 			unsigned long addr, int len)
 {
 	if (vma->vm_flags & VM_EXEC) {
@@ -46,16 +46,16 @@ flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
 			mm->context[smp_processor_id()] = 0;
 	}
 }
-#define flush_icache_user_range flush_icache_user_range
+#define flush_icache_user_page flush_icache_user_page
 #else /* CONFIG_SMP */
-extern void flush_icache_user_range(struct vm_area_struct *vma,
+extern void flush_icache_user_page(struct vm_area_struct *vma,
 		struct page *page, unsigned long addr, int len);
-#define flush_icache_user_range flush_icache_user_range
+#define flush_icache_user_page flush_icache_user_page
 #endif /* CONFIG_SMP */
 
 /* This is used only in __do_fault and do_swap_page.  */
 #define flush_icache_page(vma, page) \
-	flush_icache_user_range((vma), (page), 0, 0)
+	flush_icache_user_page((vma), (page), 0, 0)
 
 #include <asm-generic/cacheflush.h>
 

arch/alpha/kernel/smp.c

@@ -740,7 +740,7 @@ ipi_flush_icache_page(void *x)
 }
 
 void
-flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 			unsigned long addr, int len)
 {
 	struct mm_struct *mm = vma->vm_mm;

arch/ia64/include/asm/cacheflush.h

@@ -22,7 +22,7 @@ extern void flush_icache_range(unsigned long start, unsigned long end);
 #define flush_icache_range flush_icache_range
 extern void clflush_cache_range(void *addr, int size);
 
-#define flush_icache_user_range(vma, page, user_addr, len)					\
+#define flush_icache_user_page(vma, page, user_addr, len)					\
 do {												\
 	unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK);	\
 	flush_icache_range(_addr, _addr + (len));						\

arch/m68k/include/asm/cacheflush_mm.h

@@ -254,7 +254,7 @@ static inline void __flush_page_to_ram(void *vaddr)
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
 #define flush_icache_page(vma, page)	__flush_page_to_ram(page_address(page))
 
-extern void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+extern void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 				    unsigned long addr, int len);
 extern void flush_icache_range(unsigned long address, unsigned long endaddr);
 
@@ -264,7 +264,7 @@ static inline void copy_to_user_page(struct vm_area_struct *vma,
 {
 	flush_cache_page(vma, vaddr, page_to_pfn(page));
 	memcpy(dst, src, len);
-	flush_icache_user_range(vma, page, vaddr, len);
+	flush_icache_user_page(vma, page, vaddr, len);
 }
 static inline void copy_from_user_page(struct vm_area_struct *vma,
 				       struct page *page, unsigned long vaddr,

arch/m68k/mm/cache.c

@@ -106,7 +106,7 @@ void flush_icache_range(unsigned long address, unsigned long endaddr)
 }
 EXPORT_SYMBOL(flush_icache_range);
 
-void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 			     unsigned long addr, int len)
 {
 	if (CPU_IS_COLDFIRE) {

arch/nds32/include/asm/cacheflush.h

@@ -44,9 +44,9 @@ void invalidate_kernel_vmap_range(void *addr, int size);
 #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&(mapping)->i_pages)
 
 #else
-void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 	                     unsigned long addr, int len);
-#define flush_icache_user_range flush_icache_user_range
+#define flush_icache_user_page flush_icache_user_page
 
 #include <asm-generic/cacheflush.h>
 #endif

arch/nds32/mm/cacheflush.c

@@ -36,7 +36,7 @@ void flush_icache_page(struct vm_area_struct *vma, struct page *page)
 	local_irq_restore(flags);
 }
 
-void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 	                     unsigned long addr, int len)
 {
 	unsigned long kaddr;

arch/openrisc/include/asm/cacheflush.h

@@ -62,7 +62,7 @@ static inline void flush_dcache_page(struct page *page)
 	clear_bit(PG_dc_clean, &page->flags);
 }
 
-#define flush_icache_user_range(vma, page, addr, len)	\
+#define flush_icache_user_page(vma, page, addr, len)	\
 do {							\
 	if (vma->vm_flags & VM_EXEC)			\
 		sync_icache_dcache(page);		\

arch/powerpc/include/asm/cacheflush.h

@@ -28,9 +28,9 @@ extern void flush_dcache_page(struct page *page);
 void flush_icache_range(unsigned long start, unsigned long stop);
 #define flush_icache_range flush_icache_range
 
-void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 		unsigned long addr, int len);
-#define flush_icache_user_range flush_icache_user_range
+#define flush_icache_user_page flush_icache_user_page
 
 void flush_dcache_icache_page(struct page *page);
 void __flush_dcache_icache(void *page);

arch/powerpc/mm/mem.c

@@ -577,7 +577,7 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 	flush_dcache_page(pg);
 }
 
-void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 			     unsigned long addr, int len)
 {
 	unsigned long maddr;

arch/riscv/include/asm/cacheflush.h

@@ -27,7 +27,8 @@ static inline void flush_dcache_page(struct page *page)
  * so instead we just flush the whole thing.
  */
 #define flush_icache_range(start, end) flush_icache_all()
-#define flush_icache_user_range(vma, pg, addr, len) flush_icache_mm(vma->vm_mm, 0)
+#define flush_icache_user_page(vma, pg, addr, len) \
+	flush_icache_mm(vma->vm_mm, 0)
 
 #ifndef CONFIG_SMP
 

include/asm-generic/cacheflush.h

@@ -73,8 +73,8 @@ static inline void flush_icache_page(struct vm_area_struct *vma,
 }
 #endif
 
-#ifndef flush_icache_user_range
-static inline void flush_icache_user_range(struct vm_area_struct *vma,
+#ifndef flush_icache_user_page
+static inline void flush_icache_user_page(struct vm_area_struct *vma,
 					   struct page *page,
 					   unsigned long addr, int len)
 {
@@ -97,7 +97,7 @@ static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
 #define copy_to_user_page(vma, page, vaddr, dst, src, len)	\
 	do { \
 		memcpy(dst, src, len); \
-		flush_icache_user_range(vma, page, vaddr, len); \
+		flush_icache_user_page(vma, page, vaddr, len); \
 	} while (0)
 #endif
 

kernel/events/uprobes.c

@@ -1668,7 +1668,7 @@ void __weak arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
 	copy_to_page(page, vaddr, src, len);
 
 	/*
-	 * We probably need flush_icache_user_range() but it needs vma.
+	 * We probably need flush_icache_user_page() but it needs vma.
 	 * This should work on most of architectures by default. If
 	 * architecture needs to do something different it can define
 	 * its own version of the function.