diff --git a/block/ioctl.c b/block/ioctl.c index 24beec9ca9c95b776c6976bb5e6d5f129420c326..0c3a4a53fa11822e160cd107376471b02bf5d901 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -469,6 +469,8 @@ static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode, BLKDEV_DISCARD_SECURE); case BLKZEROOUT: return blk_ioctl_zeroout(bdev, mode, arg); + case BLKGETDISKSEQ: + return put_u64(argp, bdev->bd_disk->diskseq); case BLKREPORTZONE: return blkdev_report_zones_ioctl(bdev, mode, cmd, arg); case BLKRESETZONE: diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 4c32e97dcdf00a22ebbcfc3c03f849ea90b2d9f5..bdf7b404b3e723e2def3acad8354f6f32e02a3e7 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -184,6 +184,7 @@ struct fsxattr { #define BLKSECDISCARD _IO(0x12,125) #define BLKROTATIONAL _IO(0x12,126) #define BLKZEROOUT _IO(0x12,127) +#define BLKGETDISKSEQ _IOR(0x12,128,__u64) /* * A jump here: 130-136 are reserved for zoned block devices * (see uapi/linux/blkzoned.h)