md: remove the second argument of k[un]map_atomic()
Cong Wang [Mon, 28 Nov 2011 05:25:44 +0000 (13:25 +0800)]
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Cong Wang <amwang@redhat.com>

drivers/md/bitmap.c

index cdf36b1..045e086 100644 (file)
@@ -457,7 +457,7 @@ void bitmap_update_sb(struct bitmap *bitmap)
                return;
        }
        spin_unlock_irqrestore(&bitmap->lock, flags);
-       sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+       sb = kmap_atomic(bitmap->sb_page);
        sb->events = cpu_to_le64(bitmap->mddev->events);
        if (bitmap->mddev->events < bitmap->events_cleared)
                /* rocking back to read-only */
@@ -467,7 +467,7 @@ void bitmap_update_sb(struct bitmap *bitmap)
        /* Just in case these have been changed via sysfs: */
        sb->daemon_sleep = cpu_to_le32(bitmap->mddev->bitmap_info.daemon_sleep/HZ);
        sb->write_behind = cpu_to_le32(bitmap->mddev->bitmap_info.max_write_behind);
-       kunmap_atomic(sb, KM_USER0);
+       kunmap_atomic(sb);
        write_page(bitmap, bitmap->sb_page, 1);
 }
 
@@ -478,7 +478,7 @@ void bitmap_print_sb(struct bitmap *bitmap)
 
        if (!bitmap || !bitmap->sb_page)
                return;
-       sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+       sb = kmap_atomic(bitmap->sb_page);
        printk(KERN_DEBUG "%s: bitmap file superblock:\n", bmname(bitmap));
        printk(KERN_DEBUG "         magic: %08x\n", le32_to_cpu(sb->magic));
        printk(KERN_DEBUG "       version: %d\n", le32_to_cpu(sb->version));
@@ -497,7 +497,7 @@ void bitmap_print_sb(struct bitmap *bitmap)
        printk(KERN_DEBUG "     sync size: %llu KB\n",
                        (unsigned long long)le64_to_cpu(sb->sync_size)/2);
        printk(KERN_DEBUG "max write behind: %d\n", le32_to_cpu(sb->write_behind));
-       kunmap_atomic(sb, KM_USER0);
+       kunmap_atomic(sb);
 }
 
 /*
@@ -525,7 +525,7 @@ static int bitmap_new_disk_sb(struct bitmap *bitmap)
        }
        bitmap->sb_page->index = 0;
 
-       sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+       sb = kmap_atomic(bitmap->sb_page);
 
        sb->magic = cpu_to_le32(BITMAP_MAGIC);
        sb->version = cpu_to_le32(BITMAP_MAJOR_HI);
@@ -533,7 +533,7 @@ static int bitmap_new_disk_sb(struct bitmap *bitmap)
        chunksize = bitmap->mddev->bitmap_info.chunksize;
        BUG_ON(!chunksize);
        if (!is_power_of_2(chunksize)) {
-               kunmap_atomic(sb, KM_USER0);
+               kunmap_atomic(sb);
                printk(KERN_ERR "bitmap chunksize not a power of 2\n");
                return -EINVAL;
        }
@@ -571,7 +571,7 @@ static int bitmap_new_disk_sb(struct bitmap *bitmap)
        bitmap->flags |= BITMAP_HOSTENDIAN;
        sb->version = cpu_to_le32(BITMAP_MAJOR_HOSTENDIAN);
 
-       kunmap_atomic(sb, KM_USER0);
+       kunmap_atomic(sb);
 
        return 0;
 }
@@ -603,7 +603,7 @@ static int bitmap_read_sb(struct bitmap *bitmap)
                return err;
        }
 
-       sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+       sb = kmap_atomic(bitmap->sb_page);
 
        chunksize = le32_to_cpu(sb->chunksize);
        daemon_sleep = le32_to_cpu(sb->daemon_sleep) * HZ;
@@ -664,7 +664,7 @@ success:
                bitmap->events_cleared = bitmap->mddev->events;
        err = 0;
 out:
-       kunmap_atomic(sb, KM_USER0);
+       kunmap_atomic(sb);
        if (err)
                bitmap_print_sb(bitmap);
        return err;
@@ -689,7 +689,7 @@ static int bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits,
                return 0;
        }
        spin_unlock_irqrestore(&bitmap->lock, flags);
-       sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+       sb = kmap_atomic(bitmap->sb_page);
        old = le32_to_cpu(sb->state) & bits;
        switch (op) {
        case MASK_SET:
@@ -703,7 +703,7 @@ static int bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits,
        default:
                BUG();
        }
-       kunmap_atomic(sb, KM_USER0);
+       kunmap_atomic(sb);
        return old;
 }
 
@@ -881,12 +881,12 @@ static void bitmap_file_set_bit(struct bitmap *bitmap, sector_t block)
        bit = file_page_offset(bitmap, chunk);
 
        /* set the bit */
-       kaddr = kmap_atomic(page, KM_USER0);
+       kaddr = kmap_atomic(page);
        if (bitmap->flags & BITMAP_HOSTENDIAN)
                set_bit(bit, kaddr);
        else
                __set_bit_le(bit, kaddr);
-       kunmap_atomic(kaddr, KM_USER0);
+       kunmap_atomic(kaddr);
        pr_debug("set file bit %lu page %lu\n", bit, page->index);
        /* record page number so it gets flushed to disk when unplug occurs */
        set_page_attr(bitmap, page, BITMAP_PAGE_DIRTY);
@@ -1050,10 +1050,10 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
                                 * if bitmap is out of date, dirty the
                                 * whole page and write it out
                                 */
-                               paddr = kmap_atomic(page, KM_USER0);
+                               paddr = kmap_atomic(page);
                                memset(paddr + offset, 0xff,
                                       PAGE_SIZE - offset);
-                               kunmap_atomic(paddr, KM_USER0);
+                               kunmap_atomic(paddr);
                                write_page(bitmap, page, 1);
 
                                ret = -EIO;
@@ -1061,12 +1061,12 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
                                        goto err;
                        }
                }
-               paddr = kmap_atomic(page, KM_USER0);
+               paddr = kmap_atomic(page);
                if (bitmap->flags & BITMAP_HOSTENDIAN)
                        b = test_bit(bit, paddr);
                else
                        b = test_bit_le(bit, paddr);
-               kunmap_atomic(paddr, KM_USER0);
+               kunmap_atomic(paddr);
                if (b) {
                        /* if the disk bit is set, set the memory bit */
                        int needed = ((sector_t)(i+1) << (CHUNK_BLOCK_SHIFT(bitmap))
@@ -1209,10 +1209,10 @@ void bitmap_daemon_work(struct mddev *mddev)
                            mddev->bitmap_info.external == 0) {
                                bitmap_super_t *sb;
                                bitmap->need_sync = 0;
-                               sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+                               sb = kmap_atomic(bitmap->sb_page);
                                sb->events_cleared =
                                        cpu_to_le64(bitmap->events_cleared);
-                               kunmap_atomic(sb, KM_USER0);
+                               kunmap_atomic(sb);
                                write_page(bitmap, bitmap->sb_page, 1);
                        }
                        spin_lock_irqsave(&bitmap->lock, flags);
@@ -1235,7 +1235,7 @@ void bitmap_daemon_work(struct mddev *mddev)
                                                  -1);
 
                                /* clear the bit */
-                               paddr = kmap_atomic(page, KM_USER0);
+                               paddr = kmap_atomic(page);
                                if (bitmap->flags & BITMAP_HOSTENDIAN)
                                        clear_bit(file_page_offset(bitmap, j),
                                                  paddr);
@@ -1244,7 +1244,7 @@ void bitmap_daemon_work(struct mddev *mddev)
                                                file_page_offset(bitmap,
                                                                 j),
                                                paddr);
-                               kunmap_atomic(paddr, KM_USER0);
+                               kunmap_atomic(paddr);
                        } else if (*bmc <= 2) {
                                *bmc = 1; /* maybe clear the bit next time */
                                set_page_attr(bitmap, page, BITMAP_PAGE_PENDING);