22542eca18
function old new delta vgetopt32 1318 1392 +74 runsvdir_main 703 713 +10 bb_make_directory 423 425 +2 collect_cpu 546 545 -1 opt_chars 3 - -3 opt_complementary 4 - -4 tftpd_main 567 562 -5 ntp_init 476 471 -5 zcip_main 1266 1256 -10 xxd_main 428 418 -10 whois_main 140 130 -10 who_main 463 453 -10 which_main 212 202 -10 wget_main 2535 2525 -10 watchdog_main 291 281 -10 watch_main 222 212 -10 vlock_main 399 389 -10 uuencode_main 332 322 -10 uudecode_main 316 306 -10 unlink_main 45 35 -10 udhcpd_main 1482 1472 -10 udhcpc_main 2762 2752 -10 tune2fs_main 290 280 -10 tunctl_main 366 356 -10 truncate_main 218 208 -10 tr_main 518 508 -10 time_main 1134 1124 -10 tftp_main 286 276 -10 telnetd_main 1873 1863 -10 tcpudpsvd_main 1785 1775 -10 taskset_main 521 511 -10 tar_main 1009 999 -10 tail_main 1644 1634 -10 syslogd_main 1967 1957 -10 switch_root_main 368 358 -10 svlogd_main 1454 1444 -10 sv 1296 1286 -10 stat_main 104 94 -10 start_stop_daemon_main 1028 1018 -10 split_main 542 532 -10 sort_main 796 786 -10 slattach_main 624 614 -10 shuf_main 504 494 -10 setsid_main 96 86 -10 setserial_main 1132 1122 -10 setfont_main 388 378 -10 setconsole_main 78 68 -10 sendmail_main 1209 1199 -10 sed_main 677 667 -10 script_main 1077 1067 -10 run_parts_main 325 315 -10 rtcwake_main 454 444 -10 rm_main 175 165 -10 reformime_main 119 109 -10 readlink_main 123 113 -10 rdate_main 246 236 -10 pwdx_main 189 179 -10 pstree_main 317 307 -10 pscan_main 663 653 -10 popmaildir_main 818 808 -10 pmap_main 80 70 -10 nc_main 1042 1032 -10 mv_main 558 548 -10 mountpoint_main 477 467 -10 mount_main 1264 1254 -10 modprobe_main 768 758 -10 modinfo_main 333 323 -10 mktemp_main 200 190 -10 mkswap_main 324 314 -10 mkfs_vfat_main 1489 1479 -10 microcom_main 715 705 -10 md5_sha1_sum_main 521 511 -10 man_main 867 857 -10 makedevs_main 1052 1042 -10 ls_main 563 553 -10 losetup_main 432 422 -10 loadfont_main 89 79 -10 ln_main 524 514 -10 link_main 75 65 -10 ipcalc_main 544 534 -10 iostat_main 2397 2387 -10 install_main 768 758 -10 id_main 480 470 -10 i2cset_main 1239 1229 -10 i2cget_main 380 370 -10 i2cdump_main 1482 1472 -10 i2cdetect_main 682 672 -10 hwclock_main 406 396 -10 httpd_main 741 731 -10 grep_main 837 827 -10 getty_main 1559 1549 -10 fuser_main 297 287 -10 ftpgetput_main 345 335 -10 ftpd_main 2232 2222 -10 fstrim_main 251 241 -10 fsfreeze_main 77 67 -10 fsck_minix_main 2921 2911 -10 flock_main 314 304 -10 flashcp_main 740 730 -10 flash_eraseall_main 833 823 -10 fdformat_main 532 522 -10 expand_main 680 670 -10 eject_main 335 325 -10 dumpleases_main 630 620 -10 du_main 314 304 -10 dos2unix_main 441 431 -10 diff_main 1350 1340 -10 df_main 1064 1054 -10 date_main 1095 1085 -10 cut_main 961 951 -10 cryptpw_main 228 218 -10 crontab_main 575 565 -10 crond_main 1149 1139 -10 cp_main 370 360 -10 common_traceroute_main 3834 3824 -10 common_ping_main 1767 1757 -10 comm_main 239 229 -10 cmp_main 655 645 -10 chrt_main 379 369 -10 chpst_main 704 694 -10 chpasswd_main 308 298 -10 chown_main 171 161 -10 chmod_main 158 148 -10 cat_main 428 418 -10 bzip2_main 120 110 -10 blkdiscard_main 264 254 -10 base64_main 221 211 -10 arping_main 1665 1655 -10 ar_main 556 546 -10 adjtimex_main 406 396 -10 adduser_main 882 872 -10 addgroup_main 411 401 -10 acpid_main 1198 1188 -10 optstring 11 - -11 opt_string 18 - -18 OPT_STR 25 - -25 ubi_tools_main 1288 1258 -30 ls_options 31 - -31 ------------------------------------------------------------------------------ (add/remove: 0/6 grow/shrink: 3/129 up/down: 86/-1383) Total: -1297 bytes text data bss dec hex filename 915428 485 6876 922789 e14a5 busybox_old 914629 485 6872 921986 e1182 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* fstrim.c - discard the part (or whole) of mounted filesystem.
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*
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* 03 March 2012 - Malek Degachi <malek-degachi@laposte.net>
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* Adapted for busybox from util-linux-2.12a.
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*
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* Licensed under GPLv2 or later, see file LICENSE in this source tree.
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*/
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//config:config FSTRIM
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//config: bool "fstrim (5.5 kb)"
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//config: default y
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//config: select PLATFORM_LINUX
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//config: help
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//config: Discard unused blocks on a mounted filesystem.
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//applet:IF_FSTRIM(APPLET_NOEXEC(fstrim, fstrim, BB_DIR_SBIN, BB_SUID_DROP, fstrim))
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//kbuild:lib-$(CONFIG_FSTRIM) += fstrim.o
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//usage:#define fstrim_trivial_usage
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//usage: "[OPTIONS] MOUNTPOINT"
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//usage:#define fstrim_full_usage "\n\n"
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//usage: IF_LONG_OPTS(
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//usage: " -o,--offset OFFSET Offset in bytes to discard from"
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//usage: "\n -l,--length LEN Bytes to discard"
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//usage: "\n -m,--minimum MIN Minimum extent length"
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//usage: "\n -v,--verbose Print number of discarded bytes"
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//usage: )
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//usage: IF_NOT_LONG_OPTS(
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//usage: " -o OFFSET Offset in bytes to discard from"
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//usage: "\n -l LEN Bytes to discard"
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//usage: "\n -m MIN Minimum extent length"
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//usage: "\n -v Print number of discarded bytes"
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//usage: )
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#include "libbb.h"
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#include <linux/fs.h>
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#ifndef FITRIM
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struct fstrim_range {
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uint64_t start;
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uint64_t len;
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uint64_t minlen;
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};
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#define FITRIM _IOWR('X', 121, struct fstrim_range)
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#endif
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int fstrim_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int fstrim_main(int argc UNUSED_PARAM, char **argv)
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{
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struct fstrim_range range;
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char *arg_o, *arg_l, *arg_m, *mp;
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unsigned opts;
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int fd;
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enum {
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OPT_o = (1 << 0),
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OPT_l = (1 << 1),
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OPT_m = (1 << 2),
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OPT_v = (1 << 3),
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};
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#if ENABLE_LONG_OPTS
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static const char fstrim_longopts[] ALIGN1 =
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"offset\0" Required_argument "o"
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"length\0" Required_argument "l"
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"minimum\0" Required_argument "m"
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"verbose\0" No_argument "v"
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;
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#endif
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opts = getopt32long(argv, "^" "o:l:m:v" "\0" "=1", fstrim_longopts,
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&arg_o, &arg_l, &arg_m
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);
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memset(&range, 0, sizeof(range));
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range.len = ULLONG_MAX;
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if (opts & OPT_o)
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range.start = xatoull_sfx(arg_o, kmg_i_suffixes);
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if (opts & OPT_l)
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range.len = xatoull_sfx(arg_l, kmg_i_suffixes);
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if (opts & OPT_m)
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range.minlen = xatoull_sfx(arg_m, kmg_i_suffixes);
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mp = argv[optind];
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if (find_block_device(mp)) {
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fd = xopen_nonblocking(mp);
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xioctl(fd, FITRIM, &range);
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if (ENABLE_FEATURE_CLEAN_UP)
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close(fd);
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if (opts & OPT_v)
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printf("%s: %llu bytes trimmed\n", mp, (unsigned long long)range.len);
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return EXIT_SUCCESS;
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}
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return EXIT_FAILURE;
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}
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