UPSTREAM: sched/fair: Fix -Wunused-but-set-variable warnings
commit 763a9ec06c409dcde2a761aac4bb83ff3938e0b3 upstream.
Commit:
de53fd7aedb1 ("sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices")
introduced a few compilation warnings:
kernel/sched/fair.c: In function '__refill_cfs_bandwidth_runtime':
kernel/sched/fair.c:4365:6: warning: variable 'now' set but not used [-Wunused-but-set-variable]
kernel/sched/fair.c: In function 'start_cfs_bandwidth':
kernel/sched/fair.c:4992:6: warning: variable 'overrun' set but not used [-Wunused-but-set-variable]
Also, __refill_cfs_bandwidth_runtime() does no longer update the
expiration time, so fix the comments accordingly.
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ben Segall <bsegall@google.com>
Reviewed-by: Dave Chiluk <chiluk+linux@indeed.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: pauld@redhat.com
Fixes: de53fd7aedb1 ("sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices")
Link: https://lkml.kernel.org/r/1566326455-8038-1-git-send-email-cai@lca.pw
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit e9c0fc4a7ccd9fc28e78685d17c1943839c5579a
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-4.19.y)
Signed-off-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
BUG=b:136009299
TEST=tryjob, customer verified that the problem is resolved.
RELEASE_NOTE=Fixed CFS quota throttling issue
Change-Id: Ie316f282964c04c65368e0f6c7e7166e0c45d14d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/1955917
Reviewed-by: Xuewei Zhang <xueweiz@google.com>
Reviewed-by: Roy Yang <royyang@google.com>
Commit-Queue: Vaibhav Rustagi <vaibhavrustagi@google.com>
Tested-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
1 file changed
