Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

[mv-sheeva.git] / drivers / mtd / ubi / upd.c

diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c
index 8b89cc18ff0b69753326dbe48b87015726cf3cc1..6b4d1ae891ae81a187b9073b79e1ac29c1aad6e5 100644 (file)
--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -40,7 +40,7 @@
 
 #include <linux/err.h>
 #include <linux/uaccess.h>
-#include <asm/div64.h>
+#include <linux/math64.h>
 #include "ubi.h"
 
 /**
@@ -89,7 +89,6 @@ static int clear_update_marker(struct ubi_device *ubi, struct ubi_volume *vol,
                               long long bytes)
 {
        int err;
-       uint64_t tmp;
        struct ubi_vtbl_record vtbl_rec;
 
        dbg_gen("clear update marker for volume %d", vol->vol_id);
@@ -101,9 +100,9 @@ static int clear_update_marker(struct ubi_device *ubi, struct ubi_volume *vol,
 
        if (vol->vol_type == UBI_STATIC_VOLUME) {
                vol->corrupted = 0;
-               vol->used_bytes = tmp = bytes;
-               vol->last_eb_bytes = do_div(tmp, vol->usable_leb_size);
-               vol->used_ebs = tmp;
+               vol->used_bytes = bytes;
+               vol->used_ebs = div_u64_rem(bytes, vol->usable_leb_size,
+                                           &vol->last_eb_bytes);
                if (vol->last_eb_bytes)
                        vol->used_ebs += 1;
                else
@@ -131,7 +130,6 @@ int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol,
                     long long bytes)
 {
        int i, err;
-       uint64_t tmp;
 
        dbg_gen("start update of volume %d, %llu bytes", vol->vol_id, bytes);
        ubi_assert(!vol->updating && !vol->changing_leb);
@@ -161,9 +159,8 @@ int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol,
        if (!vol->upd_buf)
                return -ENOMEM;
 
-       tmp = bytes;
-       vol->upd_ebs = !!do_div(tmp, vol->usable_leb_size);
-       vol->upd_ebs += tmp;
+       vol->upd_ebs = div_u64(bytes + vol->usable_leb_size - 1,
+                              vol->usable_leb_size);
        vol->upd_bytes = bytes;
        vol->upd_received = 0;
        return 0;
@@ -282,7 +279,6 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
 int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol,
                         const void __user *buf, int count)
 {
-       uint64_t tmp;
        int lnum, offs, err = 0, len, to_write = count;
 
        dbg_gen("write %d of %lld bytes, %lld already passed",
@@ -291,10 +287,7 @@ int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol,
        if (ubi->ro_mode)
                return -EROFS;
 
-       tmp = vol->upd_received;
-       offs = do_div(tmp, vol->usable_leb_size);
-       lnum = tmp;
-
+       lnum = div_u64_rem(vol->upd_received,  vol->usable_leb_size, &offs);
        if (vol->upd_received + count > vol->upd_bytes)
                to_write = count = vol->upd_bytes - vol->upd_received;