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authorHATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>2016-09-27 00:36:20 +0900
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-09-26 11:36:20 -0400
commiteeb084806be1cc7f579d61634fe7b9b3dd5b3df9 (patch)
treea34fae9a3b27c73007d58cf347ccac4eb9a0990c /src/journal
parenta5ca3649d34c5649ca04fc81000a80e476a81a64 (diff)
journald,ratelimit: fix wrong calculation of burst_modulate() (#4218)
This patch fixes wrong calculation of burst_modulate(), which now calculates the values smaller than really expected ones if available disk space is strictly more than 1MB. In particular, if available disk space is strictly more than 1MB and strictly less than 16MB, the resulted value becomes smaller than its original one. >>> (math.log2(1*1024**2)-16) / 4 1.0 >>> (math.log2(16*1024**2)-16) / 4 2.0 >>> (math.log2(256*1024**2)-16) / 4 3.0 → This matches the comment in the function.
Diffstat (limited to 'src/journal')
-rw-r--r--src/journal/journald-rate-limit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/journal/journald-rate-limit.c b/src/journal/journald-rate-limit.c
index fce799a6ce..d30bf92cec 100644
--- a/src/journal/journald-rate-limit.c
+++ b/src/journal/journald-rate-limit.c
@@ -190,7 +190,7 @@ static unsigned burst_modulate(unsigned burst, uint64_t available) {
if (k <= 20)
return burst;
- burst = (burst * (k-20)) / 4;
+ burst = (burst * (k-16)) / 4;
/*
* Example: