sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file

[safe/jmp/linux-2.6] / crypto / scatterwalk.c

diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index 206c39a..3de89a4 100644 (file)
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -13,6 +13,8 @@
  * any later version.
  *
  */
+
+#include <crypto/scatterwalk.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/module.h>
@@ -20,9 +22,6 @@
 #include <linux/highmem.h>
 #include <linux/scatterlist.h>
 
-#include "internal.h"
-#include "scatterwalk.h"
-
 static inline void memcpy_dir(void *buf, void *sgdata, size_t nbytes, int out)
 {
        void *src = out ? buf : sgdata;
@@ -55,14 +54,15 @@ static void scatterwalk_pagedone(struct scatter_walk *walk, int out,
                struct page *page;
 
                page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT);
-               flush_dcache_page(page);
+               if (!PageSlab(page))
+                       flush_dcache_page(page);
        }
 
        if (more) {
                walk->offset += PAGE_SIZE - 1;
                walk->offset &= PAGE_MASK;
                if (walk->offset >= walk->sg->offset + walk->sg->length)
-                       scatterwalk_start(walk, sg_next(walk->sg));
+                       scatterwalk_start(walk, scatterwalk_sg_next(walk->sg));
        }
 }
 
@@ -106,6 +106,9 @@ void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,
        struct scatter_walk walk;
        unsigned int offset = 0;
 
+       if (!nbytes)
+               return;
+
        for (;;) {
                scatterwalk_start(&walk, sg);
 
@@ -113,7 +116,7 @@ void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,
                        break;
 
                offset += sg->length;
-               sg = sg_next(sg);
+               sg = scatterwalk_sg_next(sg);
        }
 
        scatterwalk_advance(&walk, start - offset);