/* vi: set sw=4 ts=4: */ /* * Copyright (C) 2017 Denys Vlasenko <vda.linux@googlemail.com> * * Licensed under GPLv2, see file LICENSE in this source tree. */ //config:config PARTPROBE //config: bool "partprobe (3.6 kb)" //config: default y //config: select PLATFORM_LINUX //config: help //config: Ask kernel to rescan partition table. //applet:IF_PARTPROBE(APPLET_NOEXEC(partprobe, partprobe, BB_DIR_USR_SBIN, BB_SUID_DROP, partprobe)) //kbuild:lib-$(CONFIG_PARTPROBE) += partprobe.o #include <linux/fs.h> #include "libbb.h" #ifndef BLKRRPART # define BLKRRPART _IO(0x12,95) #endif //usage:#define partprobe_trivial_usage //usage: "DEVICE..." //usage:#define partprobe_full_usage "\n\n" //usage: "Ask kernel to rescan partition table" // // partprobe (GNU parted) 3.2: // -d, --dry-run Don't update the kernel // -s, --summary Show a summary of devices and their partitions int partprobe_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int partprobe_main(int argc UNUSED_PARAM, char **argv) { getopt32(argv, ""); argv += optind; /* "partprobe" with no arguments just does nothing */ while (*argv) { int fd = xopen(*argv, O_RDONLY); /* * Newer versions of parted scan partition tables themselves and * use BLKPG ioctl (BLKPG_DEL_PARTITION / BLKPG_ADD_PARTITION) * since this way kernel does not need to know * partition table formats. * We use good old BLKRRPART: */ ioctl_or_perror_and_die(fd, BLKRRPART, NULL, "%s", *argv); close(fd); argv++; } return EXIT_SUCCESS; }