Mike Marciniszyn d144da8c6f IB/core: use RCU for uverbs id lookup ... The current implementation gets a spin_lock, and at any scale with qib and hfi1 post send, the lock contention grows exponentially with the number of QPs. idr_find() is RCU compatibile, so read doesn't need the lock. Change to use rcu_read_lock() and rcu_read_unlock() in __idr_get_uobj(). kfree_rcu() is used to insure a grace period between the idr removal and actual free. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>		2015-12-07 16:39:26 -05:00
..
addr.c	IB/addr: Pass network namespace as a parameter	2015-10-28 12:32:47 -04:00
agent.c	IB: split struct ib_send_wr	2015-10-08 11:09:10 +01:00
agent.h	IB/mad: Add final OPA MAD processing	2015-06-12 14:49:18 -04:00
cache.c	IB/cache: Add ib_find_gid_by_filter cache API	2015-10-21 23:48:17 -04:00
cm_msgs.h	IB/core: Fix unaligned accesses	2015-05-05 13:21:27 -04:00
cm.c	IB/cm: Remove the usage of smac and vid of qp_attr and cm_av	2015-10-21 23:48:18 -04:00
cma.c	IB/core, cma: Make __attribute_const__ declarations sparse-friendly	2015-10-30 17:57:49 -04:00
core_priv.h	IB/core: Use GID table in AH creation and dmac resolution	2015-10-21 23:48:17 -04:00
device.c	IB/core: Expose and rename ib_find_cached_gid_by_port cache API	2015-10-21 23:48:17 -04:00
fmr_pool.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
iwcm.c	RDMA/iwcm: Use a default listen backlog if needed	2014-08-05 07:33:24 -07:00
iwcm.h
iwpm_msg.c	RDMA/core: Fixes for port mapper client registration	2015-07-14 13:20:10 -04:00
iwpm_util.c	RDMA/core: Fixes for port mapper client registration	2015-07-14 13:20:10 -04:00
iwpm_util.h	RDMA/core: Fixes for port mapper client registration	2015-07-14 13:20:10 -04:00
mad_priv.h	IB: split struct ib_send_wr	2015-10-08 11:09:10 +01:00
mad_rmpp.c	IB/mad: Add final OPA MAD processing	2015-06-12 14:49:18 -04:00
mad_rmpp.h
mad.c	Merge branch 'wr-cleanup' into k.o/for-4.4	2015-10-28 22:23:34 -04:00
Makefile	IB/core: Add RoCE GID table management	2015-08-30 18:08:50 -04:00
multicast.c	IB/core: Add netdev and gid attributes paramteres to cache	2015-10-21 23:48:17 -04:00
netlink.c	IB/core: Add rdma netlink helper functions	2015-08-30 18:12:25 -04:00
opa_smi.h	IB: Add rdma_cap_ib_switch helper and use where appropriate	2015-07-14 13:20:08 -04:00
packer.c	infiniband: add in export.h for files using EXPORT_SYMBOL/THIS_MODULE	2011-10-31 19:31:35 -04:00
roce_gid_mgmt.c	IB/core: Fix use after free of ifa	2015-10-20 13:10:46 -04:00
sa_query.c	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
sa.h
smi.c	IB: Add rdma_cap_ib_switch helper and use where appropriate	2015-07-14 13:20:08 -04:00
smi.h	IB: Add rdma_cap_ib_switch helper and use where appropriate	2015-07-14 13:20:08 -04:00
sysfs.c	IB/core: Add netdev and gid attributes paramteres to cache	2015-10-21 23:48:17 -04:00
ucm.c	IB/cm: Remove compare_data checks	2015-08-30 15:48:24 -04:00
ucma.c	IB/ucma: Take the network namespace from the process	2015-10-28 12:32:48 -04:00
ud_header.c	infiniband: add in export.h for files using EXPORT_SYMBOL/THIS_MODULE	2011-10-31 19:31:35 -04:00
umem_odp.c	IB/core: dma unmap optimizations	2015-05-05 09:18:02 -04:00
umem_rbtree.c	IB/core: Implement support for MMU notifiers regarding on demand paging regions	2014-12-15 18:13:36 -08:00
umem.c	IB/core: don't disallow registering region starting at 0x0	2015-04-15 16:05:02 -04:00
user_mad.c	IB/core: lock client data with lists_rwsem	2015-08-30 15:48:21 -04:00
uverbs_cmd.c	IB/core: use RCU for uverbs id lookup	2015-12-07 16:39:26 -05:00
uverbs_main.c	IB/core: Extend ib_uverbs_create_qp	2015-10-21 23:16:46 -04:00
uverbs_marshall.c	IB/core: Remove smac and vlan id from path record	2015-10-21 23:48:18 -04:00
uverbs.h	IB/core: Extend ib_uverbs_create_qp	2015-10-21 23:16:46 -04:00
verbs.c	IB/core, cma: Make __attribute_const__ declarations sparse-friendly	2015-10-30 17:57:49 -04:00