Add function for getting member drive sector size

[thirdparty/mdadm.git] / mdadm.h

diff --git a/mdadm.h b/mdadm.h
index cfa5bebe8cffbe576530640aa75949fc8ffae99c..240ab7f831bc971a15db21de744d48f2678f5936 100755 (executable)
--- a/mdadm.h
+++ b/mdadm.h
@@ -1112,6 +1112,7 @@ static inline struct supertype *guess_super(int fd) {
 }
 extern struct supertype *dup_super(struct supertype *st);
 extern int get_dev_size(int fd, char *dname, unsigned long long *sizep);
+extern int get_dev_sector_size(int fd, char *dname, unsigned int *sectsizep);
 extern int must_be_container(int fd);
 extern int dev_size_from_id(dev_t id, unsigned long long *size);
 void wait_for(char *dev, int fd);
@@ -1331,7 +1332,14 @@ extern int CreateBitmap(char *filename, int force, char uuid[16],
 extern int ExamineBitmap(char *filename, int brief, struct supertype *st);
 extern int Write_rules(char *rule_name);
 extern int bitmap_update_uuid(int fd, int *uuid, int swap);
-extern unsigned long bitmap_sectors(struct bitmap_super_s *bsb);
+
+/* calculate the size of the bitmap given the array size and bitmap chunksize */
+static inline unsigned long long
+bitmap_bits(unsigned long long array_size, unsigned long chunksize)
+{
+       return (array_size * 512 + chunksize - 1) / chunksize;
+}
+
 extern int Dump_metadata(char *dev, char *dir, struct context *c,
                         struct supertype *st);
 extern int Restore_metadata(char *dev, char *dir, struct context *c,
@@ -1470,6 +1478,7 @@ extern int mdmon_running(char *devnm);
 extern int mdmon_pid(char *devnm);
 extern int check_env(char *name);
 extern __u32 random32(void);
+extern void random_uuid(__u8 *buf);
 extern int start_mdmon(char *devnm);
 
 extern int child_monitor(int afd, struct mdinfo *sra, struct reshape *reshape,