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blkdev.h (358B) - Raw

      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 #ifndef _LINUX_BLKDEV_H
      3 #define _LINUX_BLKDEV_H
      4 
      5 #include <linux/ioctl.h>
      6 #include <linux/types.h>
      7 
      8 /*
      9  * io_uring block file commands, see IORING_OP_URING_CMD.
     10  * It's a different number space from ioctl(), reuse the block's code 0x12.
     11  */
     12 #define BLOCK_URING_CMD_DISCARD			_IO(0x12, 0)
     13 
     14 #endif