Btrfs: make things static and include the right headers
Shut up various sparse warnings about symbols that should be either
static or have their declarations in scope.
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index fb04665..8a2bcc7 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -93,9 +93,9 @@
* extents on the btree inode are pretty simple, there's one extent
* that covers the entire device
*/
-struct extent_map *btree_get_extent(struct inode *inode, struct page *page,
- size_t page_offset, u64 start, u64 len,
- int create)
+static struct extent_map *btree_get_extent(struct inode *inode,
+ struct page *page, size_t page_offset, u64 start, u64 len,
+ int create)
{
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
struct extent_map *em;
@@ -295,7 +295,7 @@
* checksum a dirty tree block before IO. This has extra checks to make
* sure we only fill in the checksum field in the first page of a multi-page block
*/
-int csum_dirty_buffer(struct btrfs_root *root, struct page *page)
+static int csum_dirty_buffer(struct btrfs_root *root, struct page *page)
{
struct extent_io_tree *tree;
u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
@@ -365,7 +365,7 @@
return ret;
}
-int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end,
+static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end,
struct extent_state *state)
{
struct extent_io_tree *tree;
@@ -660,7 +660,7 @@
return extent_writepages(tree, mapping, btree_get_extent, wbc);
}
-int btree_readpage(struct file *file, struct page *page)
+static int btree_readpage(struct file *file, struct page *page)
{
struct extent_io_tree *tree;
tree = &BTRFS_I(page->mapping->host)->io_tree;
@@ -1200,7 +1200,7 @@
}
}
-void btrfs_unplug_io_fn(struct backing_dev_info *bdi, struct page *page)
+static void btrfs_unplug_io_fn(struct backing_dev_info *bdi, struct page *page)
{
struct inode *inode;
struct extent_map_tree *em_tree;
@@ -1842,7 +1842,7 @@
put_bh(bh);
}
-int write_all_supers(struct btrfs_root *root)
+static int write_all_supers(struct btrfs_root *root)
{
struct list_head *cur;
struct list_head *head = &root->fs_info->fs_devices->devices;
