r0 = creat(&(0x7f00000003c0)='./file0\x00', 0x0) ioctl$FS_IOC_RESVSP(r0, 0x40305828, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x400005}) truncate(&(0x7f0000000100)='./file0\x00', 0x80) pwritev(r0, &(0x7f00000001c0)=[{&(0x7f0000000280)="b7", 0x1}], 0x1, 0x1000, 0x0) lseek(r0, 0x0, 0x3)