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/extent_io.c b/fs/btrfs/extent_io.c
index d79ccdb..c3dfe2a 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -112,7 +112,7 @@
}
EXPORT_SYMBOL(extent_io_tree_init);
-struct extent_state *alloc_extent_state(gfp_t mask)
+static struct extent_state *alloc_extent_state(gfp_t mask)
{
struct extent_state *state;
#ifdef LEAK_DEBUG
@@ -136,7 +136,7 @@
}
EXPORT_SYMBOL(alloc_extent_state);
-void free_extent_state(struct extent_state *state)
+static void free_extent_state(struct extent_state *state)
{
if (!state)
return;
@@ -662,7 +662,7 @@
* [start, end] is inclusive
* This takes the tree lock.
*/
-int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, int bits,
+static int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, int bits,
int exclusive, u64 *failed_start, gfp_t mask)
{
struct extent_state *state;
@@ -879,12 +879,11 @@
}
EXPORT_SYMBOL(set_extent_new);
-int clear_extent_new(struct extent_io_tree *tree, u64 start, u64 end,
+static int clear_extent_new(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask)
{
return clear_extent_bit(tree, start, end, EXTENT_NEW, 0, 0, mask);
}
-EXPORT_SYMBOL(clear_extent_new);
int set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask)
@@ -894,27 +893,24 @@
}
EXPORT_SYMBOL(set_extent_uptodate);
-int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
+static int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask)
{
return clear_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, 0, mask);
}
-EXPORT_SYMBOL(clear_extent_uptodate);
-int set_extent_writeback(struct extent_io_tree *tree, u64 start, u64 end,
+static int set_extent_writeback(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask)
{
return set_extent_bit(tree, start, end, EXTENT_WRITEBACK,
0, NULL, mask);
}
-EXPORT_SYMBOL(set_extent_writeback);
-int clear_extent_writeback(struct extent_io_tree *tree, u64 start, u64 end,
+static int clear_extent_writeback(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask)
{
return clear_extent_bit(tree, start, end, EXTENT_WRITEBACK, 1, 0, mask);
}
-EXPORT_SYMBOL(clear_extent_writeback);
int wait_on_extent_writeback(struct extent_io_tree *tree, u64 start, u64 end)
{
@@ -994,7 +990,7 @@
/*
* helper function to set both pages and extents in the tree writeback
*/
-int set_range_writeback(struct extent_io_tree *tree, u64 start, u64 end)
+static int set_range_writeback(struct extent_io_tree *tree, u64 start, u64 end)
{
unsigned long index = start >> PAGE_CACHE_SHIFT;
unsigned long end_index = end >> PAGE_CACHE_SHIFT;
@@ -1010,7 +1006,6 @@
set_extent_writeback(tree, start, end, GFP_NOFS);
return 0;
}
-EXPORT_SYMBOL(set_range_writeback);
/*
* find the first offset in the io tree with 'bits' set. zero is
@@ -1432,11 +1427,13 @@
spin_unlock_irq(&tree->lock);
return total_bytes;
}
+
+#if 0
/*
* helper function to lock both pages and extents in the tree.
* pages must be locked first.
*/
-int lock_range(struct extent_io_tree *tree, u64 start, u64 end)
+static int lock_range(struct extent_io_tree *tree, u64 start, u64 end)
{
unsigned long index = start >> PAGE_CACHE_SHIFT;
unsigned long end_index = end >> PAGE_CACHE_SHIFT;
@@ -1473,12 +1470,11 @@
}
return err;
}
-EXPORT_SYMBOL(lock_range);
/*
* helper function to unlock both pages and extents in the tree.
*/
-int unlock_range(struct extent_io_tree *tree, u64 start, u64 end)
+static int unlock_range(struct extent_io_tree *tree, u64 start, u64 end)
{
unsigned long index = start >> PAGE_CACHE_SHIFT;
unsigned long end_index = end >> PAGE_CACHE_SHIFT;
@@ -1493,7 +1489,7 @@
unlock_extent(tree, start, end, GFP_NOFS);
return 0;
}
-EXPORT_SYMBOL(unlock_range);
+#endif
/*
* set the private field for a given byte offset in the tree. If there isn't
@@ -1956,7 +1952,7 @@
}
EXPORT_SYMBOL(set_page_extent_mapped);
-void set_page_extent_head(struct page *page, unsigned long len)
+static void set_page_extent_head(struct page *page, unsigned long len)
{
set_page_private(page, EXTENT_PAGE_PRIVATE_FIRST_PAGE | len << 2);
}
@@ -2397,7 +2393,7 @@
* WB_SYNC_ALL then we were called for data integrity and we must wait for
* existing IO to complete.
*/
-int extent_write_cache_pages(struct extent_io_tree *tree,
+static int extent_write_cache_pages(struct extent_io_tree *tree,
struct address_space *mapping,
struct writeback_control *wbc,
writepage_t writepage, void *data,
@@ -2502,7 +2498,6 @@
}
return ret;
}
-EXPORT_SYMBOL(extent_write_cache_pages);
static noinline void flush_write_bio(void *data)
{