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author | Dmitry Vyukov <dvyukov@google.com> | 2021-03-23 07:49:23 +0100 |
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committer | David S. Miller <davem@davemloft.net> | 2021-03-23 17:22:50 -0700 |
commit | 5aa3afe107d9099fc0dea2acf82c3e3c8f0f20e2 (patch) | |
tree | 03a69b161a77f895e1c47c6c0f46eb617207181a /drivers/net/ethernet/hisilicon/hns | |
parent | net: ethernet: Remove duplicate include of vhca_event.h (diff) | |
download | linux-dev-5aa3afe107d9099fc0dea2acf82c3e3c8f0f20e2.tar.xz linux-dev-5aa3afe107d9099fc0dea2acf82c3e3c8f0f20e2.zip |
net: make unregister netdev warning timeout configurable
netdev_wait_allrefs() issues a warning if refcount does not drop to 0
after 10 seconds. While 10 second wait generally should not happen
under normal workload in normal environment, it seems to fire falsely
very often during fuzzing and/or in qemu emulation (~10x slower).
At least it's not possible to understand if it's really a false
positive or not. Automated testing generally bumps all timeouts
to very high values to avoid flake failures.
Add net.core.netdev_unregister_timeout_secs sysctl to make
the timeout configurable for automated testing systems.
Lowering the timeout may also be useful for e.g. manual bisection.
The default value matches the current behavior.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=211877
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns')
0 files changed, 0 insertions, 0 deletions