btrfs: mark extent_buffer_under_io static

extent_buffer_under_io is only used in extent_io.c, so mark it static.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index d8becf1cdbc09e44c14e3d100302bece0b35b8de..9827403ce2fbe1239f44715be30ce3102f706e42 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3421,7 +3421,7 @@ static void __free_extent_buffer(struct extent_buffer *eb)
        kmem_cache_free(extent_buffer_cache, eb);
 }
 
-int extent_buffer_under_io(const struct extent_buffer *eb)
+static int extent_buffer_under_io(const struct extent_buffer *eb)
 {
        return (atomic_read(&eb->io_pages) ||
                test_bit(EXTENT_BUFFER_WRITEBACK, &eb->bflags) ||

diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 6f3cfadd232c957eb620783b25cc0a62178c116a..e11ee09ab26b6468e4432a1d08ddcd6d6bc58d2d 100644 (file)
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -264,7 +264,6 @@ void extent_buffer_bitmap_clear(const struct extent_buffer *eb,
 void set_extent_buffer_dirty(struct extent_buffer *eb);
 void set_extent_buffer_uptodate(struct extent_buffer *eb);
 void clear_extent_buffer_uptodate(struct extent_buffer *eb);
-int extent_buffer_under_io(const struct extent_buffer *eb);
 void extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
 void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
 void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end,