USB: xhci: Fix TRB physical to virtual address translation.

[safe/jmp/linux-2.6] / drivers / md / raid6algos.c

diff --git a/drivers/md/raid6algos.c b/drivers/md/raid6algos.c
index acf386f..866215a 100644 (file)
--- a/drivers/md/raid6algos.c
+++ b/drivers/md/raid6algos.c
@@ -5,7 +5,7 @@
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
- *   Bostom MA 02111-1307, USA; either version 2 of the License, or
+ *   Boston MA 02111-1307, USA; either version 2 of the License, or
  *   (at your option) any later version; incorporated herein by reference.
  *
  * ----------------------------------------------------------------------- */
@@ -16,12 +16,20 @@
  * Algorithm list and algorithm selection for RAID-6
  */
 
-#include "raid6.h"
+#include <linux/raid/pq.h>
 #ifndef __KERNEL__
 #include <sys/mman.h>
+#include <stdio.h>
+#else
+#if !RAID6_USE_EMPTY_ZERO_PAGE
+/* In .bss so it's zeroed */
+const char raid6_empty_zero_page[PAGE_SIZE] __attribute__((aligned(256)));
+EXPORT_SYMBOL(raid6_empty_zero_page);
+#endif
 #endif
 
 struct raid6_calls raid6_call;
+EXPORT_SYMBOL_GPL(raid6_call);
 
 /* Various routine sets */
 extern const struct raid6_calls raid6_intx1;
@@ -51,7 +59,7 @@ const struct raid6_calls * const raid6_algos[] = {
        &raid6_intx16,
        &raid6_intx32,
 #endif
-#if defined(__i386__)
+#if defined(__i386__) && !defined(__arch_um__)
        &raid6_mmxx1,
        &raid6_mmxx2,
        &raid6_sse1x1,
@@ -59,7 +67,7 @@ const struct raid6_calls * const raid6_algos[] = {
        &raid6_sse2x1,
        &raid6_sse2x2,
 #endif
-#if defined(__x86_64__)
+#if defined(__x86_64__) && !defined(__arch_um__)
        &raid6_sse2x1,
        &raid6_sse2x2,
        &raid6_sse2x4,
@@ -78,6 +86,7 @@ const struct raid6_calls * const raid6_algos[] = {
 #else
 /* Need more time to be stable in userspace */
 #define RAID6_TIME_JIFFIES_LG2 9
+#define time_before(x, y) ((x) < (y))
 #endif
 
 /* Try to pick the best algorithm */
@@ -120,7 +129,8 @@ int __init raid6_select_algo(void)
                        j0 = jiffies;
                        while ( (j1 = jiffies) == j0 )
                                cpu_relax();
-                       while ( (jiffies-j1) < (1 << RAID6_TIME_JIFFIES_LG2) ) {
+                       while (time_before(jiffies,
+                                           j1 + (1<<RAID6_TIME_JIFFIES_LG2))) {
                                (*algo)->gen_syndrome(disks, PAGE_SIZE, dptrs);
                                perf++;
                        }
@@ -138,16 +148,24 @@ int __init raid6_select_algo(void)
                }
        }
 
-       if ( best )
+       if (best) {
                printk("raid6: using algorithm %s (%ld MB/s)\n",
                       best->name,
                       (bestperf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2));
-       else
+               raid6_call = *best;
+       } else
                printk("raid6: Yikes!  No algorithm found!\n");
 
-       raid6_call = *best;
-
        free_pages((unsigned long)syndromes, 1);
 
        return best ? 0 : -EINVAL;
 }
+
+static void raid6_exit(void)
+{
+       do { } while (0);
+}
+
+subsys_initcall(raid6_select_algo);
+module_exit(raid6_exit);
+MODULE_LICENSE("GPL");