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block: remove timer canceling in throttle_config()

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throttle_config() cancels the timers of the calling BlockBackend. This
doesn't make sense because other BlockBackends in the group remain
untouched. There's no need to cancel the timers in the one specific
BlockBackend so let's not do that. Throttled requests will run as
scheduled and future requests will follow the new configuration. This
also allows a throttle group's configuration to be changed even when it
has no members.

Signed-off-by: Manos Pitsidianakis <el13635@mail.ntua.gr>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Manos Pitsidianakis 2017-07-02 13:06:46 +03:00 • committed by Kevin Wolf
parent dbe824cc57
commit 27e4cf1303
5 changed files with 4 additions and 27 deletions
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2
fsdev/qemu-fsdev-throttle.c
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@ -86,7 +86,7 @@ void fsdev_throttle_init(FsThrottle *fst)
fsdev_throttle_read_timer_cb,
fsdev_throttle_write_timer_cb,
fst);
throttle_config(&fst->ts, QEMU_CLOCK_REALTIME, &fst->tt, &fst->cfg);
throttle_config(&fst->ts, QEMU_CLOCK_REALTIME, &fst->cfg);
qemu_co_queue_init(&fst->throttled_reqs[0]);
qemu_co_queue_init(&fst->throttled_reqs[1]);
}