fs/affs/file.c: remove unnecessary function parameters

- affs_do_readpage_ofs is always called with from = 0 ie reading from
  page->index

- File parameter is never used

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/affs/file.c b/fs/affs/file.c
index 8669b6e..fd168ef 100644 (file)
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -498,34 +498,36 @@ affs_getemptyblk_ino(struct inode *inode, int block)
 }
 
 static int
-affs_do_readpage_ofs(struct file *file, struct page *page, unsigned from, unsigned to)
+affs_do_readpage_ofs(struct page *page, unsigned to)
 {
        struct inode *inode = page->mapping->host;
        struct super_block *sb = inode->i_sb;
        struct buffer_head *bh;
        char *data;
+       unsigned pos = 0;
        u32 bidx, boff, bsize;
        u32 tmp;
 
-       pr_debug("AFFS: read_page(%u, %ld, %d, %d)\n", (u32)inode->i_ino, page->index, from, to);
-       BUG_ON(from > to || to > PAGE_CACHE_SIZE);
+       pr_debug("AFFS: read_page(%u, %ld, 0, %d)\n", (u32)inode->i_ino,
+                page->index, to);
+       BUG_ON(to > PAGE_CACHE_SIZE);
        kmap(page);
        data = page_address(page);
        bsize = AFFS_SB(sb)->s_data_blksize;
-       tmp = (page->index << PAGE_CACHE_SHIFT) + from;
+       tmp = page->index << PAGE_CACHE_SHIFT;
        bidx = tmp / bsize;
        boff = tmp % bsize;
 
-       while (from < to) {
+       while (pos < to) {
                bh = affs_bread_ino(inode, bidx, 0);
                if (IS_ERR(bh))
                        return PTR_ERR(bh);
-               tmp = min(bsize - boff, to - from);
-               BUG_ON(from + tmp > to || tmp > bsize);
-               memcpy(data + from, AFFS_DATA(bh) + boff, tmp);
+               tmp = min(bsize - boff, to - pos);
+               BUG_ON(pos + tmp > to || tmp > bsize);
+               memcpy(data + pos, AFFS_DATA(bh) + boff, tmp);
                affs_brelse(bh);
                bidx++;
-               from += tmp;
+               pos += tmp;
                boff = 0;
        }
        flush_dcache_page(page);
@@ -615,7 +617,7 @@ affs_readpage_ofs(struct file *file, struct page *page)
                memset(page_address(page) + to, 0, PAGE_CACHE_SIZE - to);
        }
 
-       err = affs_do_readpage_ofs(file, page, 0, to);
+       err = affs_do_readpage_ofs(page, to);
        if (!err)
                SetPageUptodate(page);
        unlock_page(page);
@@ -651,7 +653,7 @@ static int affs_write_begin_ofs(struct file *file, struct address_space *mapping
                return 0;
 
        /* XXX: inefficient but safe in the face of short writes */
-       err = affs_do_readpage_ofs(file, page, 0, PAGE_CACHE_SIZE);
+       err = affs_do_readpage_ofs(page, PAGE_CACHE_SIZE);
        if (err) {
                unlock_page(page);
                page_cache_release(page);