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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/um/drivers/cow.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/um/drivers/cow.h')
-rw-r--r--kernel/arch/um/drivers/cow.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/kernel/arch/um/drivers/cow.h b/kernel/arch/um/drivers/cow.h
new file mode 100644
index 000000000..6673508f3
--- /dev/null
+++ b/kernel/arch/um/drivers/cow.h
@@ -0,0 +1,32 @@
+#ifndef __COW_H__
+#define __COW_H__
+
+#include <asm/types.h>
+
+extern int init_cow_file(int fd, char *cow_file, char *backing_file,
+ int sectorsize, int alignment, int *bitmap_offset_out,
+ unsigned long *bitmap_len_out, int *data_offset_out);
+
+extern int file_reader(__u64 offset, char *buf, int len, void *arg);
+extern int read_cow_header(int (*reader)(__u64, char *, int, void *),
+ void *arg, __u32 *version_out,
+ char **backing_file_out, time_t *mtime_out,
+ unsigned long long *size_out, int *sectorsize_out,
+ __u32 *align_out, int *bitmap_offset_out);
+
+extern int write_cow_header(char *cow_file, int fd, char *backing_file,
+ int sectorsize, int alignment,
+ unsigned long long *size);
+
+extern void cow_sizes(int version, __u64 size, int sectorsize, int align,
+ int bitmap_offset, unsigned long *bitmap_len_out,
+ int *data_offset_out);
+
+#endif
+
+/*
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */