1 files changed, 7 insertions, 7 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index e2b54d546b7c..bd0f45fb38c4 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1025,16 +1025,16 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
         }
 
         /* make sure our super fits in the device */
-        if (bytenr + PAGE_CACHE_SIZE >= i_size_read(bdev->bd_inode))
+        if (bytenr + PAGE_SIZE >= i_size_read(bdev->bd_inode))
                 goto error_bdev_put;
 
         /* make sure our super fits in the page */
-        if (sizeof(*disk_super) > PAGE_CACHE_SIZE)
+        if (sizeof(*disk_super) > PAGE_SIZE)
                 goto error_bdev_put;
 
         /* make sure our super doesn't straddle pages on disk */
-        index = bytenr >> PAGE_CACHE_SHIFT;
-        if ((bytenr + sizeof(*disk_super) - 1) >> PAGE_CACHE_SHIFT != index)
+        index = bytenr >> PAGE_SHIFT;
+        if ((bytenr + sizeof(*disk_super) - 1) >> PAGE_SHIFT != index)
                 goto error_bdev_put;
 
         /* pull in the page with our super */
@@ -1047,7 +1047,7 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
         p = kmap(page);
 
         /* align our pointer to the offset of the super block */
-        disk_super = p + (bytenr & ~PAGE_CACHE_MASK);
+        disk_super = p + (bytenr & ~PAGE_MASK);
 
         if (btrfs_super_bytenr(disk_super) != bytenr ||
             btrfs_super_magic(disk_super) != BTRFS_MAGIC)
@@ -1075,7 +1075,7 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
 
 error_unmap:
         kunmap(page);
-        page_cache_release(page);
+        put_page(page);
 
 error_bdev_put:
         blkdev_put(bdev, flags);
@@ -6527,7 +6527,7 @@ int btrfs_read_sys_array(struct btrfs_root *root)
          * but sb spans only this function. Add an explicit SetPageUptodate call
          * to silence the warning eg. on PowerPC 64.
          */
-        if (PAGE_CACHE_SIZE > BTRFS_SUPER_INFO_SIZE)
+        if (PAGE_SIZE > BTRFS_SUPER_INFO_SIZE)
                 SetPageUptodate(sb->pages[0]);
 
         write_extent_buffer(sb, super_copy, 0, BTRFS_SUPER_INFO_SIZE);