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325ad0617a
linux/drivers/infiniband/core
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Guy Shapiro 325ad0617a IB/core: dma unmap optimizations 
While unmapping an ODP writable page, the dirty bit of the page is set. In
order to do so, the head of the compound page is found.
Currently, the compound head is found even on non-writable pages, where it is
never used, leading to unnecessary cpu barrier that impacts performance.

This patch moves the search for the compound head to be done only when needed.

Signed-off-by: Guy Shapiro <guysh@mellanox.com>
Acked-by: Shachar Raindel <raindel@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-05 09:18:02 -04:00
..
addr.c IB/addr: Improve address resolution callback scheduling 2014-12-15 18:10:13 -08:00
agent.c IB/mad: add new ioctl to ABI to support new registration options 2014-08-10 20:36:00 -07:00
agent.h
cache.c IB/core: Add ib_find_exact_cached_pkey() 2012-09-30 20:33:30 -07:00
cm_msgs.h IB/core: Move CM_xxx_ATTR_ID macros from cm_msgs.h to ib_cm.h 2012-07-08 18:05:06 -07:00
cm.c IB/mad: add new ioctl to ABI to support new registration options 2014-08-10 20:36:00 -07:00
cma.c RDMA/CMA: Canonize IPv4 on IPV6 sockets properly 2015-05-05 09:18:01 -04:00
core_priv.h IB/core: Resolve Ethernet L2 addresses when modifying QP 2014-01-19 15:14:04 -08:00
device.c IB/core: Handle table with full and partial membership for the same P_Key 2012-09-30 20:33:29 -07:00
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: Enable the iWarp Port Mapper to provide the actual address of the connecting peer to its clients 2015-05-05 09:18:01 -04:00
iwpm_util.c RDMA/core: Enable the iWarp Port Mapper to provide the actual address of the connecting peer to its clients 2015-05-05 09:18:01 -04:00
iwpm_util.h RDMA/core: Enable the iWarp Port Mapper to provide the actual address of the connecting peer to its clients 2015-05-05 09:18:01 -04:00
mad_priv.h IB/mad: Update module to [pr|dev]_* style print messages 2014-08-10 20:35:39 -07:00
mad_rmpp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mad_rmpp.h
mad.c IB/mad: Add user space RMPP support 2014-08-10 20:36:00 -07:00
Makefile IB/core: Implement support for MMU notifiers regarding on demand paging regions 2014-12-15 18:13:36 -08:00
multicast.c IB/core: Fix mgid key handling in SA agent multicast data-base 2014-12-15 18:10:13 -08:00
netlink.c RDMA/core: Add support for iWARP Port Mapper user space service 2014-06-10 10:11:45 -07:00
packer.c infiniband: add in export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:31:35 -04:00
sa_query.c IB/mad: add new ioctl to ABI to support new registration options 2014-08-10 20:36:00 -07:00
sa.h
smi.c
smi.h
sysfs.c IB/core: Fix kobject leak on device register error flow 2014-06-05 09:37:10 -07:00
ucm.c IB/core: convert to idr_alloc() 2013-02-27 19:10:16 -08:00
ucma.c IB/core: When marshaling ucma path from user-space, clear unused fields 2015-02-17 12:34:52 -08:00
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/mad: Add user space RMPP support 2014-08-10 20:36:00 -07:00
uverbs_cmd.c Merge branches 'core', 'cxgb4', 'iser', 'mlx4', 'mlx5', 'ocrdma', 'odp', 'qib' and 'srp' into for-next 2015-02-20 09:04:40 -08:00
uverbs_main.c ib_uverbs: Fix pages leak when using XRC SRQs 2015-04-15 16:06:39 -04:00
uverbs_marshall.c IB/core: When marshaling uverbs path, clear unused fields 2014-09-22 09:46:52 -07:00
uverbs.h IB/core: Add support for extended query device caps 2015-02-18 08:36:26 -08:00
verbs.c IB/core: Do not resolve VLAN if already resolved 2014-12-15 18:10:12 -08:00