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[IB] umad: further ib_unregister_mad_agent() deadlock fixes
authorRoland Dreier <rolandd@cisco.com>
Thu, 10 Nov 2005 18:18:23 +0000 (10:18 -0800)
committerRoland Dreier <rolandd@cisco.com>
Thu, 10 Nov 2005 18:22:51 +0000 (10:22 -0800)
commit94382f3562e350ed7c8f7dcd6fc968bdece31328
treecf4cb4d1d1dc79326f68511addc1391d7d81e0cetree | snapshot
parentae57e24a4006fd46b73d842ee99db9580ef74a02commit | diff
[IB] umad: further ib_unregister_mad_agent() deadlock fixes

The previous umad deadlock fix left ib_umad_kill_port() still
vulnerable to deadlocking.  This patch fixes that by downgrading our
lock to a read lock when we might end up trying to reacquire the lock
for reading.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
drivers/infiniband/core/user_mad.c diff | blob | history
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