Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

[powerpc.git] / drivers / s390 / block / xpram.c

diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 1140302..a04d912 100644 (file)
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -48,15 +48,6 @@
 #define PRINT_ERR(x...)                printk(KERN_ERR XPRAM_NAME " error:" x)
 
 
-static struct sysdev_class xpram_sysclass = {
-       set_kset_name("xpram"),
-};
-
-static struct sys_device xpram_sys_device = {
-       .id     = 0,
-       .cls    = &xpram_sysclass,
-}; 
-
 typedef struct {
        unsigned int    size;           /* size of xpram segment in pages */
        unsigned int    offset;         /* start page of xpram segment */
@@ -98,28 +89,15 @@ MODULE_LICENSE("GPL");
  */
 static int xpram_page_in (unsigned long page_addr, unsigned int xpage_index)
 {
-       int cc;
+       int cc = 2;     /* return unused cc 2 if pgin traps */
 
-       __asm__ __volatile__ (
-               "   lhi   %0,2\n"  /* return unused cc 2 if pgin traps */
-               "   .insn rre,0xb22e0000,%1,%2\n"  /* pgin %1,%2 */
-                "0: ipm   %0\n"
-               "   srl   %0,28\n"
+       asm volatile(
+               "       .insn   rre,0xb22e0000,%1,%2\n"  /* pgin %1,%2 */
+               "0:     ipm     %0\n"
+               "       srl     %0,28\n"
                "1:\n"
-#ifndef CONFIG_64BIT
-               ".section __ex_table,\"a\"\n"
-               "   .align 4\n"
-               "   .long  0b,1b\n"
-               ".previous"
-#else
-                ".section __ex_table,\"a\"\n"
-                "   .align 8\n"
-                "   .quad 0b,1b\n"
-                ".previous"
-#endif
-               : "=&d" (cc) 
-               : "a" (__pa(page_addr)), "a" (xpage_index) 
-               : "cc" );
+               EX_TABLE(0b,1b)
+               : "+d" (cc) : "a" (__pa(page_addr)), "d" (xpage_index) : "cc");
        if (cc == 3)
                return -ENXIO;
        if (cc == 2) {
@@ -146,28 +124,15 @@ static int xpram_page_in (unsigned long page_addr, unsigned int xpage_index)
  */
 static long xpram_page_out (unsigned long page_addr, unsigned int xpage_index)
 {
-       int cc;
+       int cc = 2;     /* return unused cc 2 if pgin traps */
 
-       __asm__ __volatile__ (
-               "   lhi   %0,2\n"  /* return unused cc 2 if pgout traps */
-               "   .insn rre,0xb22f0000,%1,%2\n"  /* pgout %1,%2 */
-                "0: ipm   %0\n"
-               "   srl   %0,28\n"
+       asm volatile(
+               "       .insn   rre,0xb22f0000,%1,%2\n"  /* pgout %1,%2 */
+               "0:     ipm     %0\n"
+               "       srl     %0,28\n"
                "1:\n"
-#ifndef CONFIG_64BIT
-               ".section __ex_table,\"a\"\n"
-               "   .align 4\n"
-               "   .long  0b,1b\n"
-               ".previous"
-#else
-                ".section __ex_table,\"a\"\n"
-                "   .align 8\n"
-                "   .quad 0b,1b\n"
-                ".previous"
-#endif
-               : "=&d" (cc) 
-               : "a" (__pa(page_addr)), "a" (xpage_index) 
-               : "cc" );
+               EX_TABLE(0b,1b)
+               : "+d" (cc) : "a" (__pa(page_addr)), "d" (xpage_index) : "cc");
        if (cc == 3)
                return -ENXIO;
        if (cc == 2) {
@@ -451,8 +416,6 @@ static void __exit xpram_exit(void)
        }
        unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME);
        blk_cleanup_queue(xpram_queue);
-       sysdev_unregister(&xpram_sys_device);
-       sysdev_class_unregister(&xpram_sysclass);
 }
 
 static int __init xpram_init(void)
@@ -464,25 +427,13 @@ static int __init xpram_init(void)
                PRINT_WARN("No expanded memory available\n");
                return -ENODEV;
        }
-       xpram_pages = xpram_highest_page_index();
+       xpram_pages = xpram_highest_page_index() + 1;
        PRINT_INFO("  %u pages expanded memory found (%lu KB).\n",
                   xpram_pages, (unsigned long) xpram_pages*4);
        rc = xpram_setup_sizes(xpram_pages);
        if (rc)
                return rc;
-       rc = sysdev_class_register(&xpram_sysclass);
-       if (rc)
-               return rc;
-
-       rc = sysdev_register(&xpram_sys_device);
-       if (rc) {
-               sysdev_class_unregister(&xpram_sysclass);
-               return rc;
-       }
-       rc = xpram_setup_blkdev();
-       if (rc)
-               sysdev_unregister(&xpram_sys_device);
-       return rc;
+       return xpram_setup_blkdev();
 }
 
 module_init(xpram_init);