btrfs: move btrfs_check_trunc_cache_free_space into block-rsv.c

This is completely related to block rsv's, move it out of the free space
cache code and into block-rsv.c.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/block-rsv.c b/fs/btrfs/block-rsv.c
index ac18c43..6279d20 100644 (file)
--- a/fs/btrfs/block-rsv.c
+++ b/fs/btrfs/block-rsv.c
@@ -541,3 +541,22 @@ try_reserve:
 
        return ERR_PTR(ret);
 }
+
+int btrfs_check_trunc_cache_free_space(struct btrfs_fs_info *fs_info,
+                                      struct btrfs_block_rsv *rsv)
+{
+       u64 needed_bytes;
+       int ret;
+
+       /* 1 for slack space, 1 for updating the inode */
+       needed_bytes = btrfs_calc_insert_metadata_size(fs_info, 1) +
+               btrfs_calc_metadata_size(fs_info, 1);
+
+       spin_lock(&rsv->lock);
+       if (rsv->reserved < needed_bytes)
+               ret = -ENOSPC;
+       else
+               ret = 0;
+       spin_unlock(&rsv->lock);
+       return ret;
+}

diff --git a/fs/btrfs/block-rsv.h b/fs/btrfs/block-rsv.h
index 6dc7817..b0bd12b 100644 (file)
--- a/fs/btrfs/block-rsv.h
+++ b/fs/btrfs/block-rsv.h
@@ -82,6 +82,8 @@ void btrfs_release_global_block_rsv(struct btrfs_fs_info *fs_info);
 struct btrfs_block_rsv *btrfs_use_block_rsv(struct btrfs_trans_handle *trans,
                                            struct btrfs_root *root,
                                            u32 blocksize);
+int btrfs_check_trunc_cache_free_space(struct btrfs_fs_info *fs_info,
+                                      struct btrfs_block_rsv *rsv);
 static inline void btrfs_unuse_block_rsv(struct btrfs_fs_info *fs_info,
                                         struct btrfs_block_rsv *block_rsv,
                                         u32 blocksize)

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index fb60669..8808004 100644 (file)
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -292,25 +292,6 @@ out:
        return ret;
 }
 
-int btrfs_check_trunc_cache_free_space(struct btrfs_fs_info *fs_info,
-                                      struct btrfs_block_rsv *rsv)
-{
-       u64 needed_bytes;
-       int ret;
-
-       /* 1 for slack space, 1 for updating the inode */
-       needed_bytes = btrfs_calc_insert_metadata_size(fs_info, 1) +
-               btrfs_calc_metadata_size(fs_info, 1);
-
-       spin_lock(&rsv->lock);
-       if (rsv->reserved < needed_bytes)
-               ret = -ENOSPC;
-       else
-               ret = 0;
-       spin_unlock(&rsv->lock);
-       return ret;
-}
-
 int btrfs_truncate_free_space_cache(struct btrfs_trans_handle *trans,
                                    struct btrfs_block_group *block_group,
                                    struct inode *vfs_inode)

diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index a855e04..33b4da3 100644 (file)
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -101,8 +101,6 @@ int btrfs_remove_free_space_inode(struct btrfs_trans_handle *trans,
                                  struct inode *inode,
                                  struct btrfs_block_group *block_group);
 
-int btrfs_check_trunc_cache_free_space(struct btrfs_fs_info *fs_info,
-                                      struct btrfs_block_rsv *rsv);
 int btrfs_truncate_free_space_cache(struct btrfs_trans_handle *trans,
                                    struct btrfs_block_group *block_group,
                                    struct inode *inode);