[PATCH] mm: Fixup pagecache_isize_extended() definitions for !CONFIG_MMU

Jan Kara
2014-10-10T14:24:10Z

For !CONFIG_MMU systems we defined pagecache_isize_extended() in both
include/linux/mm.h and mm/truncate.c which causes compilation error.
Although pagecache_isize_extended() doesn't do anything useful for
!CONFIG_MMU systems, it could do something in future and it's overhead
isn't huge. So don't try to be too smart and remove !CONFIG_MMU
definition of pagecache_isize_extended().

Signed-off-by: Jan Kara <jack@suse.cz>
---
include/linux/mm.h | 7 -------
1 file changed, 7 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index f0e53e5a3b17..5005464fe012 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1155,14 +1155,7 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,

extern void truncate_pagecache(struct inode *inode, loff_t new);
extern void truncate_setsize(struct inode *inode, loff_t newsize);
-#ifdef CONFIG_MMU
void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to);
-#else
-static inline void pagecache_isize_extended(struct inode *inode, loff_t from,
- loff_t to)
-{
-}
-#endif
void truncate_pagecache_range(struct inode *inode, loff_t offset, loff_t end);
int truncate_inode_page(struct address_space *mapping, struct page *page);
int generic_error_remove_page(struct address_space *mapping, struct page *page);