xfs: get rid of count from xfs_iomap_write_allocate()

Get rid of function variable count from xfs_iomap_write_allocate() as
it is unused.

Additionally, checkpatch warn me of the following for this change:
WARNING: extern prototypes should be avoided in .h files
+extern int xfs_iomap_write_allocate(struct xfs_inode *, xfs_off_t,

So this patch also remove all extern function prototypes at xfs_iomap.h
to suppress it to make this code style in consistent manner in this file.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index e51e581454e9..f3f95f094af8 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -333,7 +333,7 @@ xfs_map_blocks(
 
         if (type == XFS_IO_DELALLOC &&
             (!nimaps || isnullstartblock(imap->br_startblock))) {
-                error = xfs_iomap_write_allocate(ip, offset, count, imap);
+                error = xfs_iomap_write_allocate(ip, offset, imap);
                 if (!error)
                         trace_xfs_map_blocks_alloc(ip, offset, count, type, imap);
                 return -XFS_ERROR(error);