...iven in the subsections below. Allocating disk space The default operation (i.e., mode is zero) of fallocate () allocates the disk space within the range specified by offset and…...(2const) UFFDIO_REGISTER (2const) UFFDIO_UNREGISTER (2const) UFFDIO_COPY (2const) UFFDIO_ZEROPAGE (2const) UFFDIO_WAKE (2const) UFFDIO_WRITEPROTECT (2const) UFFDIO_CONTINUE (2co…...on until the page fault is resolved from user-space by either an UFFDIO_COPY or an UFFDIO_ZEROPAGE ioctl. UFFDIO_REGISTER_MODE_MINOR (since Linux 5.13) When registered with UFFD…...nonymous mappings, and shmem-based techniques such as System V shared memory segments) or zero-fill-on-demand pages for anonymous private mappings. Note that, when applied to sh…...rnel buffer. If bufsz is less than memsz , then the excess bytes in the kernel buffer are zeroed out. In case of a normal kexec (i.e., the KEXEC_ON_CRASH flag is not set), the s…...rnel buffer. If bufsz is less than memsz , then the excess bytes in the kernel buffer are zeroed out. In case of a normal kexec (i.e., the KEXEC_ON_CRASH flag is not set), the s…...ss resource utilizations ( getrusage (2)) and CPU time counters ( times (2)) are reset to zero in the child. • The child's set of pending signals is initially empty ( sigpending…...the LDT, although the kernel may act as though the LDT is padded with additional trailing zero bytes. On success, modify_ldt () will return the number of bytes read. When func i…...ldt (2)). As a result, the only reliable way to clear a TLS entry is to use memset (3) to zero the entire user_desc structure, including padding bits, and then to set the read_e…...ldt (2)). As a result, the only reliable way to clear a TLS entry is to use memset (3) to zero the entire user_desc structure, including padding bits, and then to set the read_e…...a pointer to a union of type bpf_attr (see below). The unused fields and padding must be zeroed out before the call. The size argument is the size of the union pointed to by att…...); DESCRIPTION mbind () sets the NUMA memory policy, which consists of a policy mode and zero or more nodes, for the memory range starting with addr and continuing for len bytes…...in POSIX.1-2001 and POSIX.1-2008. MAP_SHARED_VALIDATE is a Linux extension. In addition, zero or more of the following values can be ORed in flags : MAP_32BIT (since Linux 2.4.2…...in POSIX.1-2001 and POSIX.1-2008. MAP_SHARED_VALIDATE is a Linux extension. In addition, zero or more of the following values can be ORed in flags : MAP_32BIT (since Linux 2.4.2…...nism for discovering holes. For the purposes of these operations, a hole is a sequence of zeros that (normally) has not been allocated in the underlying file storage. However, a…...es: unsigned short semval; /* semaphore value */ unsigned short semzcnt; /* # waiting for zero */ unsigned short semncnt; /* # waiting for increase */ pid_t sempid; /* PID of pr…...es: unsigned short semval; /* semaphore value */ unsigned short semzcnt; /* # waiting for zero */ unsigned short semncnt; /* # waiting for increase */ pid_t sempid; /* PID of pr…...ied when the timer was created by timer_create (2). If new_value->it_value specifies a nonzero value (i.e., either subfield is nonzero), then timer_settime () arms (starts) the …...ied when the timer was created by timer_create (2). If new_value->it_value specifies a nonzero value (i.e., either subfield is nonzero), then timer_settime () arms (starts) the …...by msg_ptr ; this length must be less than or equal to the queue's mq_msgsize attribute. Zero-length messages are allowed. The msg_prio argument is a nonnegative integer that sp…