Searched hist:"79 ffdfc6522ae33d8a33e971070c08ee5f27439b" (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/include/linux/ |
H A D | rtnetlink.h | diff 79ffdfc6522ae33d8a33e971070c08ee5f27439b Wed Mar 14 14:17:20 CDT 2018 Kirill Tkhai <ktkhai@virtuozzo.com> net: Add rtnl_lock_killable()
rtnl_lock() is widely used mutex in kernel. Some of kernel code does memory allocations under it. In case of memory deficit this may invoke OOM killer, but the problem is a killed task can't exit if it's waiting for the mutex. This may be a reason of deadlock and panic.
This patch adds a new primitive, which responds on SIGKILL, and it allows to use it in the places, where we don't want to sleep forever.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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/openbmc/linux/net/core/ |
H A D | rtnetlink.c | diff 79ffdfc6522ae33d8a33e971070c08ee5f27439b Wed Mar 14 14:17:20 CDT 2018 Kirill Tkhai <ktkhai@virtuozzo.com> net: Add rtnl_lock_killable()
rtnl_lock() is widely used mutex in kernel. Some of kernel code does memory allocations under it. In case of memory deficit this may invoke OOM killer, but the problem is a killed task can't exit if it's waiting for the mutex. This may be a reason of deadlock and panic.
This patch adds a new primitive, which responds on SIGKILL, and it allows to use it in the places, where we don't want to sleep forever.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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