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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>
This commit is contained in:
Fabian Frederick 2014-06-06 14:37:23 -07:00 committed by Linus Torvalds
parent d55875f5d5
commit 0c89d67016
1 changed files with 13 additions and 11 deletions
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24
fs/affs/file.c
View File

@ -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);