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author | Zhu Yanhai <gaoyang.zyh@taobao.com> | 2013-01-08 04:56:52 (GMT) |
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committer | Ingo Molnar <mingo@kernel.org> | 2013-01-24 13:41:00 (GMT) |
commit | a59f4e079d19464eebb9b06513a1d4f55fdae5ba (patch) | |
tree | 608a8b463cbc07bd252644ec25f73dfed480a71c /kernel/sched/rt.c | |
parent | ff7532ca2c631e7e96dcd305a967b610259dc0ea (diff) | |
download | linux-fsl-qoriq-a59f4e079d19464eebb9b06513a1d4f55fdae5ba.tar.xz |
sched: Fix the broken sched_rr_get_interval()
The caller of sched_sliced() should pass se.cfs_rq and se as the
arguments, however in sched_rr_get_interval() we gave it
rq.cfs_rq and se, which made the following computation obviously
wrong.
The change was introduced by commit:
77034937dc45 sched: fix crash in sys_sched_rr_get_interval()
... 5 years ago, while it had been the correct 'cfs_rq_of' before
the commit. The change seems to be irrelevant to the commit
msg, which was to return a 0 timeslice for tasks that are on an
idle runqueue. So I believe that was just a plain typo.
Signed-off-by: Zhu Yanhai <gaoyang.zyh@taobao.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Turner <pjt@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1357621012-15039-1-git-send-email-gaoyang.zyh@taobao.com
[ Since this is an ABI and an old bug, we'll test this via a
slow upstream route, to hopefully discover any app breakage. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/rt.c')
0 files changed, 0 insertions, 0 deletions