ext2: Simplify some functions
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
---
fs/ext2/dir.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
Index: mm/fs/ext2/dir.c
===================================================================
--- mm.orig/fs/ext2/dir.c 2007-11-28 19:51:05.038882954 -0800
+++ mm/fs/ext2/dir.c 2007-11-28 19:53:59.074132710 -0800
@@ -63,8 +63,7 @@ static inline void ext2_put_page(struct
static inline unsigned long dir_pages(struct inode *inode)
{
- return (inode->i_size+page_cache_size(inode->i_mapping)-1)>>
- page_cache_shift(inode->i_mapping);
+ return page_cache_next(inode->i_mapping, inode->i_size);
}
/*
@@ -74,13 +73,9 @@ static inline unsigned long dir_pages(st
static unsigned
ext2_last_byte(struct inode *inode, unsigned long page_nr)
{
- unsigned last_byte = inode->i_size;
struct address_space *mapping = inode->i_mapping;
- last_byte -= page_nr << page_cache_shift(mapping);
- if (last_byte > page_cache_size(mapping))
- last_byte = page_cache_size(mapping);
- return last_byte;
+ return inode->i_size - page_cache_pos(mapping, page_nr, 0);
}
static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len)
-
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