diff options
Diffstat (limited to 'drivers/block/loop/loop_file_fmt_qcow_main.h')
| -rw-r--r-- | drivers/block/loop/loop_file_fmt_qcow_main.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/block/loop/loop_file_fmt_qcow_main.h b/drivers/block/loop/loop_file_fmt_qcow_main.h index c04aa4547799..8f2fa32cb422 100644 --- a/drivers/block/loop/loop_file_fmt_qcow_main.h +++ b/drivers/block/loop/loop_file_fmt_qcow_main.h @@ -16,9 +16,14 @@ #define _LINUX_LOOP_FILE_FMT_QCOW_H #include <linux/list.h> +#include <linux/mutex.h> #include <linux/types.h> #include <linux/zlib.h> +#ifdef CONFIG_DEBUG_FS +#include <linux/debugfs.h> +#endif + #include "loop_file_fmt.h" #ifdef CONFIG_DEBUG_DRIVER @@ -89,6 +94,14 @@ do { \ #define QCOW_DEFAULT_CLUSTER_SIZE 65536 +/* Buffer size for debugfs file buffer to display QCOW header information */ +#define QCOW_HEADER_BUF_LEN 1024 + +/* Buffer size for debugfs file buffer to receive and display offset and + * cluster offset information */ +#define QCOW_OFFSET_BUF_LEN 32 +#define QCOW_CLUSTER_BUF_LEN 128 + struct loop_file_fmt_qcow_header { u32 magic; u32 version; @@ -221,6 +234,18 @@ struct loop_file_fmt_qcow_data { u64 autoclear_features; struct z_stream_s *strm; + + /* debugfs entries */ +#ifdef CONFIG_DEBUG_FS + struct dentry *dbgfs_dir; + struct dentry *dbgfs_file_qcow_header; + char dbgfs_file_qcow_header_buf[QCOW_HEADER_BUF_LEN]; + struct dentry *dbgfs_file_qcow_offset; + char dbgfs_file_qcow_offset_buf[QCOW_OFFSET_BUF_LEN]; + char dbgfs_file_qcow_cluster_buf[QCOW_CLUSTER_BUF_LEN]; + u64 dbgfs_qcow_offset; + struct mutex dbgfs_qcow_offset_mutex; +#endif }; struct loop_file_fmt_qcow_cow_region { |