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| author | Denys Vlasenko | 2021-06-17 13:45:13 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2021-06-17 13:45:13 +0200 |
| commit | f02b64de864b03ac29b64efb7eb26658da05b1a2 (patch) | |
| tree | 4b61f0777fdcacbbf8b9c535abbbccded9cfa3a1 | |
| parent | c113796884c972244595040466975c74667d4359 (diff) | |
| download | busybox-f02b64de864b03ac29b64efb7eb26658da05b1a2.zip busybox-f02b64de864b03ac29b64efb7eb26658da05b1a2.tar.gz | |
ionice: implement -t
function old new delta
packed_usage 33618 33629 +11
ionice_main 272 282 +10
.rodata 103250 103251 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 22/0) Total: 22 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | util-linux/ionice.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/util-linux/ionice.c b/util-linux/ionice.c index ff5177a..82bd309 100644 --- a/util-linux/ionice.c +++ b/util-linux/ionice.c @@ -18,12 +18,13 @@ //kbuild:lib-$(CONFIG_IONICE) += ionice.o //usage:#define ionice_trivial_usage -//usage: "[-c 1-3] [-n 0-7] { -p PID | PROG ARGS }" +//usage: "[-c 1-3] [-n 0-7] [-t] { -p PID | PROG ARGS }" //TODO: | -P PGID | -u UID; also -pPu can take _list of_ IDs //usage:#define ionice_full_usage "\n\n" //usage: "Change I/O priority and class\n" //usage: "\n -c N Class. 1:realtime 2:best-effort 3:idle" //usage: "\n -n N Priority" +//usage: "\n -t Ignore errors" #include <sys/syscall.h> #include <asm/unistd.h> @@ -65,14 +66,15 @@ int ionice_main(int argc UNUSED_PARAM, char **argv) int pid = 0; /* affect own process */ int opt; enum { - OPT_n = 1, - OPT_c = 2, - OPT_p = 4, + OPT_n = 1 << 0, + OPT_c = 1 << 1, + OPT_p = 1 << 2, + OPT_t = 1 << 3, }; - /* Numeric params */ /* '+': stop at first non-option */ - opt = getopt32(argv, "+n:+c:+p:+", &pri, &ioclass, &pid); + /* numeric params for -n -c -p */ + opt = getopt32(argv, "+""n:+c:+p:+t", &pri, &ioclass, &pid); argv += optind; if (opt & OPT_c) { @@ -105,7 +107,8 @@ int ionice_main(int argc UNUSED_PARAM, char **argv) //pri, ioclass, pri | (ioclass << IOPRIO_CLASS_SHIFT)); pri |= (ioclass << IOPRIO_CLASS_SHIFT); if (ioprio_set(IOPRIO_WHO_PROCESS, pid, pri) == -1) - bb_perror_msg_and_die("ioprio_%cet", 's'); + if (!(opt & OPT_t)) + bb_perror_msg_and_die("ioprio_%cet", 's'); if (argv[0]) { BB_EXECVP_or_die(argv); } |