]> git.openfabrics.org - ~shefty/rdma-dev.git/blobdiff - fs/buffer.c
blkdev_max_block: make private to fs/buffer.c
[~shefty/rdma-dev.git] / fs / buffer.c
index 28a74ff5324b86928c3dabd18618ddfd422a550a..3586fb05c8ce03a4b0167b19f07c007c2095bf14 100644 (file)
@@ -911,6 +911,18 @@ link_dev_buffers(struct page *page, struct buffer_head *head)
        attach_page_buffers(page, head);
 }
 
+static sector_t blkdev_max_block(struct block_device *bdev, unsigned int size)
+{
+       sector_t retval = ~((sector_t)0);
+       loff_t sz = i_size_read(bdev->bd_inode);
+
+       if (sz) {
+               unsigned int sizebits = blksize_bits(size);
+               retval = (sz >> sizebits);
+       }
+       return retval;
+}
+
 /*
  * Initialise the state of a blockdev page's buffers.
  */ 
@@ -921,7 +933,7 @@ init_page_buffers(struct page *page, struct block_device *bdev,
        struct buffer_head *head = page_buffers(page);
        struct buffer_head *bh = head;
        int uptodate = PageUptodate(page);
-       sector_t end_block = blkdev_max_block(I_BDEV(bdev->bd_inode));
+       sector_t end_block = blkdev_max_block(I_BDEV(bdev->bd_inode), size);
 
        do {
                if (!buffer_mapped(bh)) {