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dbfe7d7437
linux/net/rds
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John Hubbard dbfe7d7437 rds: convert get_user_pages() --> pin_user_pages() 
This code was using get_user_pages_fast(), in a "Case 2" scenario
(DMA/RDMA), using the categorization from [1]. That means that it's
time to convert the get_user_pages_fast() + put_page() calls to
pin_user_pages_fast() + unpin_user_pages() calls.

There is some helpful background in [2]: basically, this is a small
part of fixing a long-standing disconnect between pinning pages, and
file systems' use of those pages.

[1] Documentation/core-api/pin_user_pages.rst

[2] "Explicit pinning of user-space pages":
    https://lwn.net/Articles/807108/

Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: rds-devel@oss.oracle.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-17 12:37:45 -07:00
..
af_rds.c Convert usage of IN_MULTICAST to ipv4_is_multicast 2019-09-05 09:38:32 +02:00
bind.c net/rds: Check laddr_check before calling it 2019-09-27 12:10:55 +02:00
cong.c rds: Changing IP address internal representation to struct in6_addr 2018-07-23 21:17:44 -07:00
connection.c rds: Return proper "tos" value to user-space 2019-07-09 21:45:42 -07:00
ib_cm.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-16 21:51:42 -08:00
ib_fmr.c net: rds: exchange of 8K and 1M pool 2019-04-24 12:07:08 -07:00
ib_frmr.c net/rds: Keep track of and wait for FRWR segments in use upon shutdown 2019-07-17 12:06:52 -07:00
ib_mr.h net/rds: Handle ODP mr registration/unregistration 2020-01-18 11:48:19 +02:00
ib_rdma.c net/rds: Use prefetch for On-Demand-Paging MR 2020-01-18 11:48:19 +02:00
ib_recv.c net/rds: Use DMA memory pool allocation for rds_header 2019-10-03 12:11:08 -07:00
ib_ring.c
ib_send.c net/rds: Handle ODP mr registration/unregistration 2020-01-18 11:48:19 +02:00
ib_stats.c net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names' 2019-09-15 20:56:19 +02:00
ib_sysctl.c
ib.c net/rds: Handle ODP mr registration/unregistration 2020-01-18 11:48:19 +02:00
ib.h net/rds: Handle ODP mr registration/unregistration 2020-01-18 11:48:19 +02:00
info.c rds: convert get_user_pages() --> pin_user_pages() 2020-05-17 12:37:45 -07:00
info.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
loop.c rds: Changing IP address internal representation to struct in6_addr 2018-07-23 21:17:44 -07:00
loop.h rds: clean up loopback rds_connections on netns deletion 2018-06-27 10:11:03 +09:00
Makefile rds: remove trailing whitespace and blank lines 2018-07-24 14:10:42 -07:00
message.c net/rds: Use ERR_PTR for rds_message_alloc_sgs() 2020-04-15 12:33:29 -07:00
page.c rds: remove dead code 2016-12-26 21:35:39 -05:00
rdma_transport.c net: rds: add service level support in rds-info 2019-08-24 16:55:25 -07:00
rdma_transport.h rds: rdma: add consumer reject 2019-02-04 14:59:11 -08:00
rdma.c net/rds: Use ERR_PTR for rds_message_alloc_sgs() 2020-04-15 12:33:29 -07:00
rds_single_path.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rds.h net/rds: Use ERR_PTR for rds_message_alloc_sgs() 2020-04-15 12:33:29 -07:00
recv.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-02 11:20:17 -07:00
send.c net/rds: Use ERR_PTR for rds_message_alloc_sgs() 2020-04-15 12:33:29 -07:00
stats.c rds: check for excessive looping in rds_send_xmit 2019-08-15 12:04:24 -07:00
sysctl.c net: rds: fix coding style issues 2016-06-18 21:34:09 -07:00
tcp_connect.c rds: Enable RDS IPv6 support 2018-07-23 21:17:44 -07:00
tcp_listen.c rds: add type of service(tos) infrastructure 2019-02-04 14:59:12 -08:00
tcp_recv.c rds: Changing IP address internal representation to struct in6_addr 2018-07-23 21:17:44 -07:00
tcp_send.c rds: Changing IP address internal representation to struct in6_addr 2018-07-23 21:17:44 -07:00
tcp_stats.c
tcp.c sysctl: pass kernel pointers to ->proc_handler 2020-04-27 02:07:40 -04:00
tcp.h rds: Enable RDS IPv6 support 2018-07-23 21:17:44 -07:00
threads.c rds: make v3.1 as compat version 2019-02-04 14:59:11 -08:00
transport.c rds: remove trailing whitespace and blank lines 2018-07-24 14:10:42 -07:00