Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / cmdline-parser.h

diff --git a/kernel/include/linux/cmdline-parser.h b/kernel/include/linux/cmdline-parser.h
new file mode 100644 (file)
index 0000000..2e6dce6
--- /dev/null
+++ b/kernel/include/linux/cmdline-parser.h
@@ -0,0 +1,45 @@
+/*
+ * Parsing command line, get the partitions information.
+ *
+ * Written by Cai Zhiyong <caizhiyong@huawei.com>
+ *
+ */
+#ifndef CMDLINEPARSEH
+#define CMDLINEPARSEH
+
+#include <linux/blkdev.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+
+/* partition flags */
+#define PF_RDONLY                   0x01 /* Device is read only */
+#define PF_POWERUP_LOCK             0x02 /* Always locked after reset */
+
+struct cmdline_subpart {
+       char name[BDEVNAME_SIZE]; /* partition name, such as 'rootfs' */
+       sector_t from;
+       sector_t size;
+       int flags;
+       struct cmdline_subpart *next_subpart;
+};
+
+struct cmdline_parts {
+       char name[BDEVNAME_SIZE]; /* block device, such as 'mmcblk0' */
+       unsigned int nr_subparts;
+       struct cmdline_subpart *subpart;
+       struct cmdline_parts *next_parts;
+};
+
+void cmdline_parts_free(struct cmdline_parts **parts);
+
+int cmdline_parts_parse(struct cmdline_parts **parts, const char *cmdline);
+
+struct cmdline_parts *cmdline_parts_find(struct cmdline_parts *parts,
+                                        const char *bdev);
+
+int cmdline_parts_set(struct cmdline_parts *parts, sector_t disk_size,
+                     int slot,
+                     int (*add_part)(int, struct cmdline_subpart *, void *),
+                     void *param);
+
+#endif /* CMDLINEPARSEH */