Roland Dreier 24bce50803 IB/umem: Fix possible hang on process exit ... If ib_umem_release() is called after ib_uverbs_close() sets context->closing, then a process can get stuck in a D state, because the code boils down to if (down_write_trylock(&mm->mmap_sem)) down_write(&mm->mmap_sem); which is obviously a stupid instant deadlock. Fix the code so that we only try to take the lock once. This bug was introduced in commit f7c6a7b5 ("IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules") which fortunately never made it into a release, and was reported by Pete Wyckoff <pw@osc.edu>. Signed-off-by: Roland Dreier <rolandd@cisco.com>		2007-06-21 11:05:58 -07:00
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addr.c
agent.c
agent.h
cache.c	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
cm_msgs.h
cm.c	IB/cm: Fix stale connection detection	2007-05-29 16:07:09 -07:00
cma.c	RDMA/cma: Fix initialization of next_port	2007-06-07 23:24:38 -07:00
core_priv.h
device.c	Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband	2007-05-21 16:19:32 -07:00
fmr_pool.c
iwcm.c
iwcm.h
mad_priv.h
mad_rmpp.c
mad_rmpp.h
mad.c
Makefile
multicast.c
packer.c
sa_query.c
sa.h
smi.c
smi.h
sysfs.c
ucm.c
ucma.c
ud_header.c
umem.c	IB/umem: Fix possible hang on process exit	2007-06-21 11:05:58 -07:00
user_mad.c
uverbs_cmd.c
uverbs_main.c
uverbs_marshall.c
uverbs.h
verbs.c