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Roland Dreier 1bf66a3042 IB: Put rlimit accounting struct in struct ib_umem ... When memory pinned with ib_umem_get() is released, ib_umem_release() needs to subtract the amount of memory being unpinned from mm->locked_vm. However, ib_umem_release() may be called with mm->mmap_sem already held for writing if the memory is being released as part of an munmap() call, so it is sometimes necessary to defer this accounting into a workqueue. However, the work struct used to defer this accounting is dynamically allocated before it is queued, so there is the possibility of failing that allocation. If the allocation fails, then ib_umem_release has no choice except to bail out and leave the process with a permanently elevated locked_vm. Fix this by allocating the structure to defer accounting as part of the original struct ib_umem, so there's no possibility of failing a later allocation if creating the struct ib_umem and pinning memory succeeds. Signed-off-by: Roland Dreier <rolandd@cisco.com>		18 years ago
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Makefile	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	18 years ago
addr.c	…
agent.c	…
agent.h	…
cache.c	…
cm.c	…
cm_msgs.h	…
cma.c	…
core_priv.h	…
device.c	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	18 years ago
fmr_pool.c	…
iwcm.c	…
iwcm.h	…
mad.c	IB: Add CQ comp_vector support	18 years ago
mad_priv.h	…
mad_rmpp.c	…
mad_rmpp.h	…
multicast.c	…
packer.c	…
sa.h	…
sa_query.c	…
smi.c	…
smi.h	…
sysfs.c	…
ucm.c	…
ucma.c	…
ud_header.c	…
umem.c	IB: Put rlimit accounting struct in struct ib_umem	18 years ago
user_mad.c	…
uverbs.h	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	18 years ago
uverbs_cmd.c	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	18 years ago
uverbs_main.c	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	18 years ago
uverbs_marshall.c	…
verbs.c	IB: Add CQ comp_vector support	18 years ago