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       1  /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
       2  #ifndef __LINUX_BLKPG_H
       3  #define __LINUX_BLKPG_H
       4  
       5  
       6  #include <linux/ioctl.h>
       7  
       8  #define BLKPG      _IO(0x12,105)
       9  
      10  /* The argument structure */
      11  struct blkpg_ioctl_arg {
      12          int op;
      13          int flags;
      14          int datalen;
      15          void *data;
      16  };
      17  
      18  /* The subfunctions (for the op field) */
      19  #define BLKPG_ADD_PARTITION	1
      20  #define BLKPG_DEL_PARTITION	2
      21  #define BLKPG_RESIZE_PARTITION	3
      22  
      23  /* Sizes of name fields. Unused at present. */
      24  #define BLKPG_DEVNAMELTH	64
      25  #define BLKPG_VOLNAMELTH	64
      26  
      27  /* The data structure for ADD_PARTITION and DEL_PARTITION */
      28  struct blkpg_partition {
      29  	long long start;		/* starting offset in bytes */
      30  	long long length;		/* length in bytes */
      31  	int pno;			/* partition number */
      32  	char devname[BLKPG_DEVNAMELTH];	/* unused / ignored */
      33  	char volname[BLKPG_VOLNAMELTH];	/* unused / ignore */
      34  };
      35  
      36  #endif /* __LINUX_BLKPG_H */