btrfs: move inline function code to header file

When building btrfs from kernel code, it will report:

	fs/btrfs/extent_io.h:281: warning: 'extent_buffer_page' declared inline after being called
	fs/btrfs/extent_io.h:281: warning: previous declaration of 'extent_buffer_page' was here
	fs/btrfs/extent_io.h:280: warning: 'num_extent_pages' declared inline after being called
	fs/btrfs/extent_io.h:280: warning: previous declaration of 'num_extent_pages' was here

because of the wrong declaration of inline functions.

Signed-off-by: Robin Dong <sanbai@taobao.com>

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 67fe401..b82d244 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3986,18 +3986,6 @@ out:
        return ret;
 }
 
-inline struct page *extent_buffer_page(struct extent_buffer *eb,
-                                             unsigned long i)
-{
-       return eb->pages[i];
-}
-
-inline unsigned long num_extent_pages(u64 start, u64 len)
-{
-       return ((start + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT) -
-               (start >> PAGE_CACHE_SHIFT);
-}
-
 static void __free_extent_buffer(struct extent_buffer *eb)
 {
 #if LEAK_DEBUG

diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 7aeb310..711d12b 100644 (file)
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -282,8 +282,18 @@ void free_extent_buffer_stale(struct extent_buffer *eb);
 int read_extent_buffer_pages(struct extent_io_tree *tree,
                             struct extent_buffer *eb, u64 start, int wait,
                             get_extent_t *get_extent, int mirror_num);
-unsigned long num_extent_pages(u64 start, u64 len);
-struct page *extent_buffer_page(struct extent_buffer *eb, unsigned long i);
+
+static inline unsigned long num_extent_pages(u64 start, u64 len)
+{
+       return ((start + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT) -
+               (start >> PAGE_CACHE_SHIFT);
+}
+
+static inline struct page *extent_buffer_page(struct extent_buffer *eb,
+                                             unsigned long i)
+{
+       return eb->pages[i];
+}
 
 static inline void extent_buffer_get(struct extent_buffer *eb)
 {