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AndroidKernelMSM

fix the deadlock in xt_qtaguid when enable DDEBUG

Chenbo Feng authored Mar 23, 2017 and Patrick Tjin committed Mar 28, 2017

When DDEBUG is enabled, the prdebug_full_state() function will try to
recursively aquire the spinlock of sock_tag_list and causing deadlock. A
check statement is added before it aquire the spinlock to differentiate
the behavior depend on the caller of the function.

Bug: 36559739
Test: Compile and run test under system/extra/test/iptables/
Change-Id: Ie3397fbaa207e14fe214d47aaf5e8ca1f4a712ee
Signed-off-by: Chenbo Feng <fengc@google.com>
(cherry picked from commit 8cb8a69b83bd577b97e8247aec866e651c5b96f5)

e204b57e

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e204b57e Mar 23, 2017

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