MIPS: math-emu: Use the bitmap API to allocate bitmaps

Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c
index e2d46cb..e02bd20 100644 (file)
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -82,11 +82,8 @@ retry:
 
        /* Ensure we have an allocation bitmap */
        if (!mm_ctx->bd_emupage_allocmap) {
-               mm_ctx->bd_emupage_allocmap =
-                       kcalloc(BITS_TO_LONGS(emupage_frame_count),
-                                             sizeof(unsigned long),
-                               GFP_ATOMIC);
-
+               mm_ctx->bd_emupage_allocmap = bitmap_zalloc(emupage_frame_count,
+                                                           GFP_ATOMIC);
                if (!mm_ctx->bd_emupage_allocmap) {
                        idx = BD_EMUFRAME_NONE;
                        goto out_unlock;
@@ -206,7 +203,7 @@ void dsemul_mm_cleanup(struct mm_struct *mm)
 {
        mm_context_t *mm_ctx = &mm->context;
 
-       kfree(mm_ctx->bd_emupage_allocmap);
+       bitmap_free(mm_ctx->bd_emupage_allocmap);
 }
 
 int mips_dsemul(struct pt_regs *regs, mips_instruction ir,