btrfs: plumb level through the compression interface

[sfrench/cifs-2.6.git] / fs / btrfs / lzo.c

diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index 90639140439fe8f5586ccc1cd676b320cb010659..f132af45a924d371761dd69f6afda86337866292 100644 (file)
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -61,6 +61,28 @@ struct workspace {
        struct list_head list;
 };
 
+static struct workspace_manager wsm;
+
+static void lzo_init_workspace_manager(void)
+{
+       btrfs_init_workspace_manager(&wsm, &btrfs_lzo_compress);
+}
+
+static void lzo_cleanup_workspace_manager(void)
+{
+       btrfs_cleanup_workspace_manager(&wsm);
+}
+
+static struct list_head *lzo_get_workspace(unsigned int level)
+{
+       return btrfs_get_workspace(&wsm, level);
+}
+
+static void lzo_put_workspace(struct list_head *ws)
+{
+       btrfs_put_workspace(&wsm, ws);
+}
+
 static void lzo_free_workspace(struct list_head *ws)
 {
        struct workspace *workspace = list_entry(ws, struct workspace, list);
@@ -71,7 +93,7 @@ static void lzo_free_workspace(struct list_head *ws)
        kfree(workspace);
 }
 
-static struct list_head *lzo_alloc_workspace(void)
+static struct list_head *lzo_alloc_workspace(unsigned int level)
 {
        struct workspace *workspace;
 
@@ -490,6 +512,10 @@ static void lzo_set_level(struct list_head *ws, unsigned int type)
 }
 
 const struct btrfs_compress_op btrfs_lzo_compress = {
+       .init_workspace_manager = lzo_init_workspace_manager,
+       .cleanup_workspace_manager = lzo_cleanup_workspace_manager,
+       .get_workspace          = lzo_get_workspace,
+       .put_workspace          = lzo_put_workspace,
        .alloc_workspace        = lzo_alloc_workspace,
        .free_workspace         = lzo_free_workspace,
        .compress_pages         = lzo_compress_pages,