Btrfs: move definition of the function btrfs_find_new_delalloc_bytes

Move the definition of the function btrfs_find_new_delalloc_bytes() closer
to the function btrfs_dirty_pages(), because in a future commit it will be
used exclusively by btrfs_dirty_pages(). This just moves the function's
definition, with no functional changes at all.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 41 insertions, 41 deletions

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index f80254d82f40..47e6ebad78c3 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -477,6 +477,47 @@ static void btrfs_drop_pages(struct page **pages, size_t num_pages)
         }
 }
 
+static int btrfs_find_new_delalloc_bytes(struct btrfs_inode *inode,
+                                         const u64 start,
+                                         const u64 len,
+                                         struct extent_state **cached_state)
+{
+        u64 search_start = start;
+        const u64 end = start + len - 1;
+
+        while (search_start < end) {
+                const u64 search_len = end - search_start + 1;
+                struct extent_map *em;
+                u64 em_len;
+                int ret = 0;
+
+                em = btrfs_get_extent(inode, NULL, 0, search_start,
+                                      search_len, 0);
+                if (IS_ERR(em))
+                        return PTR_ERR(em);
+
+                if (em->block_start != EXTENT_MAP_HOLE)
+                        goto next;
+
+                em_len = em->len;
+                if (em->start < search_start)
+                        em_len -= search_start - em->start;
+                if (em_len > search_len)
+                        em_len = search_len;
+
+                ret = set_extent_bit(&inode->io_tree, search_start,
+                                     search_start + em_len - 1,
+                                     EXTENT_DELALLOC_NEW,
+                                     NULL, cached_state, GFP_NOFS);
+next:
+                search_start = extent_map_end(em);
+                free_extent_map(em);
+                if (ret)
+                        return ret;
+        }
+        return 0;
+}
+
 /*
  * after copy_from_user, pages need to be dirtied and we need to make
  * sure holes are created between the current EOF and the start of
@@ -1404,47 +1445,6 @@ fail:
 
 }
 
-static int btrfs_find_new_delalloc_bytes(struct btrfs_inode *inode,
-                                         const u64 start,
-                                         const u64 len,
-                                         struct extent_state **cached_state)
-{
-        u64 search_start = start;
-        const u64 end = start + len - 1;
-
-        while (search_start < end) {
-                const u64 search_len = end - search_start + 1;
-                struct extent_map *em;
-                u64 em_len;
-                int ret = 0;
-
-                em = btrfs_get_extent(inode, NULL, 0, search_start,
-                                      search_len, 0);
-                if (IS_ERR(em))
-                        return PTR_ERR(em);
-
-                if (em->block_start != EXTENT_MAP_HOLE)
-                        goto next;
-
-                em_len = em->len;
-                if (em->start < search_start)
-                        em_len -= search_start - em->start;
-                if (em_len > search_len)
-                        em_len = search_len;
-
-                ret = set_extent_bit(&inode->io_tree, search_start,
-                                     search_start + em_len - 1,
-                                     EXTENT_DELALLOC_NEW,
-                                     NULL, cached_state, GFP_NOFS);
-next:
-                search_start = extent_map_end(em);
-                free_extent_map(em);
-                if (ret)
-                        return ret;
-        }
-        return 0;
-}
-
 /*
  * This function locks the extent and properly waits for data=ordered extents
  * to finish before allowing the pages to be modified if need.