[PATCH -mm] fs: define file_fsync() even for CONFIG_BLOCK=n

[Paul Mundt <lethal@linux-sh.org>]

There's nothing that is problematic for file_fsync() with CONFIG_BLOCK=n,
and it's built in unconditionally anyways, so move the prototype out to
reflect that. Without this, the unionfs build bails out.

  CC      fs/unionfs/file.o
fs/unionfs/file.c:148: error: 'file_fsync' undeclared here (not in a function)
make[2]: *** [fs/unionfs/file.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [fs/unionfs] Error 2

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

--

 include/linux/buffer_head.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- linux-2.6.23-rc4-mm1.orig/include/linux/buffer_head.h	2007-09-11 15:15:56.000000000 +0900
+++ linux-2.6.23-rc4-mm1/include/linux/buffer_head.h	2007-09-12 10:18:57.000000000 +0900
@@ -14,6 +14,8 @@
 #include <linux/wait.h>
 #include <asm/atomic.h>
 
+int file_fsync(struct file *, struct dentry *, int);
+
 #ifdef CONFIG_BLOCK
 
 enum bh_state_bits {
@@ -225,7 +227,6 @@
 sector_t generic_block_bmap(struct address_space *, sector_t, get_block_t *);
 int generic_commit_write(struct file *, struct page *, unsigned, unsigned);
 int block_truncate_page(struct address_space *, loff_t, get_block_t *);
-int file_fsync(struct file *, struct dentry *, int);
 int nobh_prepare_write(struct page*, unsigned, unsigned, get_block_t*);
 int nobh_commit_write(struct file *, struct page *, unsigned, unsigned);
 int nobh_truncate_page(struct address_space *, loff_t);