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author | Lennart Poettering <lennart@poettering.net> | 2019-07-12 10:41:06 +0200 |
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committer | Lennart Poettering <lennart@poettering.net> | 2019-07-13 11:05:07 +0200 |
commit | 477851f5d628785265bc84975745ec4dc1e083a7 (patch) | |
tree | c3a4d5a17021ebd4087fe42588f509e349925afa /src/shutdown | |
parent | 6a47f2a7149ec86eb682cc178b3ea7fcf3151564 (diff) | |
download | systemd-477851f5d628785265bc84975745ec4dc1e083a7.tar.gz |
shutdown: rework bump_sysctl_printk_log_level() to use sysctl_writef()
Diffstat (limited to 'src/shutdown')
-rw-r--r-- | src/shutdown/shutdown.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/shutdown/shutdown.c b/src/shutdown/shutdown.c index 33f9de52a4..3c6aed1121 100644 --- a/src/shutdown/shutdown.c +++ b/src/shutdown/shutdown.c @@ -281,16 +281,17 @@ static int read_current_sysctl_printk_log_level(void) { } static void bump_sysctl_printk_log_level(int min_level) { + int current_lvl, r; + /* Set the logging level to be able to see messages with log level smaller or equal to min_level */ - int current_lvl = read_current_sysctl_printk_log_level(); - if (current_lvl >= 0 && current_lvl <= min_level) { - char buf[DECIMAL_STR_MAX(int)]; - xsprintf(buf, "%d", min_level + 1); - int r = sysctl_write("kernel/printk", buf); - if (r < 0) - log_debug_errno(r, "Failed to bump kernel.printk to %s: %m", buf); - } + current_lvl = read_current_sysctl_printk_log_level(); + if (current_lvl < 0 || current_lvl >= min_level + 1) + return; + + r = sysctl_writef("kernel/printk", "%i", min_level + 1); + if (r < 0) + log_debug_errno(r, "Failed to bump kernel.printk to %i: %m", min_level + 1); } int main(int argc, char *argv[]) { |