mdadm.h: Introduced unaligned {get,put}_unaligned{16,32}()

[thirdparty/mdadm.git] / mdadm.h

diff --git a/mdadm.h b/mdadm.h
index 191ae8f7552b64030f47f7757d803b73a2ef0c74..0fa9e1bd3080de51597ee26898f32f95f8aa3f72 100644 (file)
--- a/mdadm.h
+++ b/mdadm.h
@@ -191,6 +191,36 @@ struct dlm_lksb {
 #endif
 #endif /* __KLIBC__ */
 
+/*
+ * Partially stolen from include/linux/unaligned/packed_struct.h
+ */
+struct __una_u16 { __u16 x; } __attribute__ ((packed));
+struct __una_u32 { __u32 x; } __attribute__ ((packed));
+
+static inline __u16 __get_unaligned16(const void *p)
+{
+       const struct __una_u16 *ptr = (const struct __una_u16 *)p;
+       return ptr->x;
+}
+
+static inline __u32 __get_unaligned32(const void *p)
+{
+       const struct __una_u32 *ptr = (const struct __una_u32 *)p;
+       return ptr->x;
+}
+
+static inline void __put_unaligned16(__u16 val, void *p)
+{
+       struct __una_u16 *ptr = (struct __una_u16 *)p;
+       ptr->x = val;
+}
+
+static inline void __put_unaligned32(__u32 val, void *p)
+{
+       struct __una_u32 *ptr = (struct __una_u32 *)p;
+       ptr->x = val;
+}
+
 /*
   * Check at compile time that something is of a particular type.
   * Always evaluates to 1 so you may use it easily in comparisons.
@@ -647,6 +677,7 @@ enum sysfs_read_flags {
        GET_ERROR       = (1 << 24),
        GET_ARRAY_STATE = (1 << 25),
        GET_CONSISTENCY_POLICY  = (1 << 26),
+       GET_DEVS_ALL    = (1 << 27),
 };
 
 /* If fd >= 0, get the array it is open on,
@@ -654,7 +685,7 @@ enum sysfs_read_flags {
  */
 extern int sysfs_open(char *devnm, char *devname, char *attr);
 extern int sysfs_init(struct mdinfo *mdi, int fd, char *devnm);
-extern void sysfs_init_dev(struct mdinfo *mdi, unsigned long devid);
+extern void sysfs_init_dev(struct mdinfo *mdi, dev_t devid);
 extern void sysfs_free(struct mdinfo *sra);
 extern struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options);
 extern int sysfs_attr_match(const char *attr, const char *str);
@@ -687,6 +718,7 @@ extern int sysfs_unique_holder(char *devnm, long rdev);
 extern int sysfs_freeze_array(struct mdinfo *sra);
 extern int sysfs_wait(int fd, int *msec);
 extern int load_sys(char *path, char *buf, int len);
+extern int zero_disk_range(int fd, unsigned long long sector, size_t count);
 extern int reshape_prepare_fdlist(char *devname,
                                  struct mdinfo *sra,
                                  int raid_disks,
@@ -1246,7 +1278,7 @@ extern void policyline(char *line, char *type);
 extern void policy_add(char *type, ...);
 extern void policy_free(void);
 
-extern struct dev_policy *path_policy(char *path, char *type);
+extern struct dev_policy *path_policy(char **paths, char *type);
 extern struct dev_policy *disk_policy(struct mdinfo *disk);
 extern struct dev_policy *devid_policy(int devid);
 extern void dev_policy_free(struct dev_policy *p);
@@ -1394,7 +1426,7 @@ extern int Kill(char *dev, struct supertype *st, int force, int verbose, int noe
 extern int Kill_subarray(char *dev, char *subarray, int verbose);
 extern int Update_subarray(char *dev, char *subarray, char *update, struct mddev_ident *ident, int quiet);
 extern int Wait(char *dev);
-extern int WaitClean(char *dev, int sock, int verbose);
+extern int WaitClean(char *dev, int verbose);
 extern int SetAction(char *dev, char *action);
 
 extern int Incremental(struct mddev_dev *devlist, struct context *c,
@@ -1433,6 +1465,7 @@ extern int get_linux_version(void);
 extern int mdadm_version(char *version);
 extern unsigned long long parse_size(char *size);
 extern int parse_uuid(char *str, int uuid[4]);
+extern int is_near_layout_10(int layout);
 extern int parse_layout_10(char *layout);
 extern int parse_layout_faulty(char *layout);
 extern long parse_num(char *num);
@@ -1483,7 +1516,6 @@ extern struct mddev_ident *conf_match(struct supertype *st,
                                      struct mdinfo *info,
                                      char *devname,
                                      int verbose, int *rvp);
-extern int experimental(void);
 
 extern void free_line(char *line);
 extern int match_oneof(char *devices, char *devname);
@@ -1537,7 +1569,7 @@ extern void print_r10_layout(int layout);
 extern char *find_free_devnm(int use_partitions);
 
 extern void put_md_name(char *name);
-extern char *devid2kname(int devid);
+extern char *devid2kname(dev_t devid);
 extern char *devid2devnm(dev_t devid);
 extern dev_t devnm2devid(char *devnm);
 extern char *get_md_name(char *devnm);
@@ -1602,6 +1634,7 @@ struct dlm_hooks {
 
        dlm_lshandle_t (*create_lockspace)(const char *name,
                                           unsigned int mode);
+       dlm_lshandle_t (*open_lockspace)(const char *name);
        int (*release_lockspace)(const char *name, dlm_lshandle_t ls,
                                 int force);
        int (*ls_lock)(dlm_lshandle_t lockspace, uint32_t mode,
@@ -1610,17 +1643,16 @@ struct dlm_hooks {
                       uint32_t parent, void (*astaddr) (void *astarg),
                       void *astarg, void (*bastaddr) (void *astarg),
                       void *range);
-       int (*ls_unlock)(dlm_lshandle_t lockspace, uint32_t lkid,
-                        uint32_t flags, struct dlm_lksb *lksb,
-                        void *astarg);
+       int (*ls_unlock_wait)(dlm_lshandle_t lockspace, uint32_t lkid,
+                             uint32_t flags, struct dlm_lksb *lksb);
        int (*ls_get_fd)(dlm_lshandle_t ls);
        int (*dispatch)(int fd);
 };
 
 extern int get_cluster_name(char **name);
 extern int dlm_funs_ready(void);
-extern int cluster_get_dlmlock(int *lockid);
-extern int cluster_release_dlmlock(int lockid);
+extern int cluster_get_dlmlock(void);
+extern int cluster_release_dlmlock(void);
 extern void set_dlm_hooks(void);
 
 #define _ROUND_UP(val, base)   (((val) + (base) - 1) & ~(base - 1))