mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/fs/btrfs/lzo.c
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@@ -27,7 +27,7 @@
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  *     Records the total size (including the header) of compressed data.
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  *
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  * 2.  Segment(s)
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- *     Variable size. Each segment includes one segment header, followd by data
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+ *     Variable size. Each segment includes one segment header, followed by data
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  *     payload.
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  *     One regular LZO compressed extent can have one or more segments.
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  *     For inlined LZO compressed extent, only one segment is allowed.
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@@ -61,7 +61,9 @@
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 	struct list_head list;
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 };
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-static void lzo_free_workspace(struct list_head *ws)
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+static struct workspace_manager wsm;
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+
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+void lzo_free_workspace(struct list_head *ws)
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 {
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 	struct workspace *workspace = list_entry(ws, struct workspace, list);
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@@ -71,7 +73,7 @@
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 	kfree(workspace);
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 }
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-static struct list_head *lzo_alloc_workspace(void)
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+struct list_head *lzo_alloc_workspace(unsigned int level)
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 {
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 	struct workspace *workspace;
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@@ -109,13 +111,9 @@
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 	return le32_to_cpu(dlen);
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 }
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-static int lzo_compress_pages(struct list_head *ws,
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-			      struct address_space *mapping,
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-			      u64 start,
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-			      struct page **pages,
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-			      unsigned long *out_pages,
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-			      unsigned long *total_in,
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-			      unsigned long *total_out)
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+int lzo_compress_pages(struct list_head *ws, struct address_space *mapping,
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+		u64 start, struct page **pages, unsigned long *out_pages,
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+		unsigned long *total_in, unsigned long *total_out)
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 {
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 	struct workspace *workspace = list_entry(ws, struct workspace, list);
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 	int ret = 0;
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@@ -281,7 +279,7 @@
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 	return ret;
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 }
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-static int lzo_decompress_bio(struct list_head *ws, struct compressed_bio *cb)
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+int lzo_decompress_bio(struct list_head *ws, struct compressed_bio *cb)
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 {
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 	struct workspace *workspace = list_entry(ws, struct workspace, list);
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 	int ret = 0, ret2;
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@@ -422,10 +420,9 @@
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 	return ret;
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 }
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-static int lzo_decompress(struct list_head *ws, unsigned char *data_in,
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-			  struct page *dest_page,
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-			  unsigned long start_byte,
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-			  size_t srclen, size_t destlen)
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+int lzo_decompress(struct list_head *ws, unsigned char *data_in,
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+		struct page *dest_page, unsigned long start_byte, size_t srclen,
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+		size_t destlen)
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 {
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 	struct workspace *workspace = list_entry(ws, struct workspace, list);
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 	size_t in_len;
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@@ -485,15 +482,8 @@
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 	return ret;
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 }
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-static void lzo_set_level(struct list_head *ws, unsigned int type)
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-{
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-}
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-
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 const struct btrfs_compress_op btrfs_lzo_compress = {
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-	.alloc_workspace	= lzo_alloc_workspace,
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-	.free_workspace		= lzo_free_workspace,
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-	.compress_pages		= lzo_compress_pages,
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-	.decompress_bio		= lzo_decompress_bio,
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-	.decompress		= lzo_decompress,
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-	.set_level		= lzo_set_level,
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+	.workspace_manager	= &wsm,
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+	.max_level		= 1,
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+	.default_level		= 1,
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 };