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Chuck Lever 278f74b39e RDMA/core: Move and rename trace_cm_id_create() 
The restrack ID for an rdma_cm_id is not assigned until it is
associated with a device.

Here's an example I captured while testing NFS/RDMA's support for
DEVICE_REMOVAL. The new tracepoint name is "cm_id_attach".

           <...>-4261  [001]   366.581299: cm_event_handler:     cm.id=0 src=0.0.0.0:45919 dst=192.168.2.55:20049 tos=0 ADDR_ERROR (1/-19)
           <...>-4261  [001]   366.581304: cm_event_done:        cm.id=0 src=0.0.0.0:45919 dst=192.168.2.55:20049 tos=0 ADDR_ERROR consumer returns 0
           <...>-1950  [000]   366.581309: cm_id_destroy:        cm.id=0 src=0.0.0.0:45919 dst=192.168.2.55:20049 tos=0
           <...>-7     [001]   369.589400: cm_event_handler:     cm.id=0 src=0.0.0.0:49023 dst=192.168.2.55:20049 tos=0 ADDR_ERROR (1/-19)
           <...>-7     [001]   369.589404: cm_event_done:        cm.id=0 src=0.0.0.0:49023 dst=192.168.2.55:20049 tos=0 ADDR_ERROR consumer returns 0
           <...>-1950  [000]   369.589407: cm_id_destroy:        cm.id=0 src=0.0.0.0:49023 dst=192.168.2.55:20049 tos=0
           <...>-4261  [001]   372.597650: cm_id_attach:         cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 device=mlx4_0
           <...>-4261  [001]   372.597652: cm_event_handler:     cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ADDR_RESOLVED (0/0)
           <...>-4261  [001]   372.597654: cm_event_done:        cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ADDR_RESOLVED consumer returns 0
           <...>-4261  [001]   372.597738: cm_event_handler:     cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ROUTE_RESOLVED (2/0)
           <...>-4261  [001]   372.597740: cm_event_done:        cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ROUTE_RESOLVED consumer returns 0
           <...>-4691  [007]   372.600101: cm_qp_create:         cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 pd.id=2 qp_type=RC send_wr=4091 recv_wr=256 qp_num=530 rc=0
           <...>-4691  [007]   372.600207: cm_send_req:          cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 qp_num=530
           <...>-185   [002]   372.601212: cm_send_mra:          cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0
           <...>-185   [002]   372.601362: cm_send_rtu:          cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0
           <...>-185   [002]   372.601372: cm_event_handler:     cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ESTABLISHED (9/0)
           <...>-185   [002]   372.601379: cm_event_done:        cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ESTABLISHED consumer returns 0

Fixes: ed999f820a ("RDMA/cma: Add trace points in RDMA Connection Manager")
Link: https://lore.kernel.org/r/20200530174934.21362.56754.stgit@manet.1015granger.net
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-06-02 20:32:54 -03:00
arch A single bugfix for the ORC unwinder to ensure that the error flag which 2020-05-17 12:20:14 -07:00
block bdi: use bdi_dev_name() to get device name 2020-05-09 16:07:39 -06:00
certs .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
crypto gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-09 15:58:04 -07:00
Documentation RDMA/core: Remove FMR device ops 2020-06-02 20:32:54 -03:00
drivers RDMA/core: Move and rename trace_cm_id_create() 2020-06-02 20:32:54 -03:00
fs Linux 5.7-rc6 2020-05-21 17:08:27 -03:00
include RDMA: Remove 'max_map_per_fmr' 2020-06-02 20:32:54 -03:00
init A single fix for early boot crashes of kernels built with gcc10 and 2020-05-17 11:08:29 -07:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-14 10:00:35 -07:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:10:06 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:10:06 -07:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
mm kasan: add missing functions declarations to kasan.h 2020-05-14 10:00:35 -07:00
net RDMA: Remove 'max_fmr' 2020-06-02 20:32:54 -03:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:10:06 -07:00
scripts scripts/gdb: repair rb_first() and rb_last() 2020-05-07 19:27:20 -07:00
security selinux/stable-5.7 PR 20200430 2020-04-30 16:35:45 -07:00
sound sound fixes for 5.7-rc6 2020-05-15 10:06:49 -07:00
tools A new testcase for guest debugging (gdbstub) that exposed a bunch of 2020-05-16 13:39:22 -07:00
usr kbuild: fix comment about missing include guard detection 2020-04-11 12:09:48 +09:00
virt KVM: Introduce kvm_make_all_cpus_request_except() 2020-05-08 07:44:32 -04:00
.clang-format clang-format: Update with the latest for_each macro list 2020-04-18 13:49:33 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
.mailmap mailmap: Add Sedat Dilek (replacement for expired email address) 2020-04-11 09:28:34 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Hand MIPS over to Thomas 2020-02-24 22:43:18 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS Linux 5.7-rc6 2020-05-21 17:08:27 -03:00
Makefile Linux 5.7-rc6 2020-05-17 16:48:37 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.