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Steve French d7171cd1ac smb3: add dynamic trace points for socket connection
In debugging user problems with ip address/DNS issues with
smb3 mounts, we sometimes needed additional info on the hostname
and ip address.

Add two tracepoints, one to show socket connection success
and one for failures to connect to the socket.

Sample output:
      mount.cifs-14551   [005] .....  7636.547906: smb3_connect_done: conn_id=0x1 server=localhost addr=127.0.0.1:445
      mount.cifs-14558   [004] .....  7642.405413: smb3_connect_done: conn_id=0x2 server=smfrench.file.core.windows.net addr=52.239.158.232:445
      mount.cifs-14741   [005] .....  7818.490716: smb3_connect_done: conn_id=0x3 server=::1 addr=[::1]:445/0%0
      mount.cifs-14810   [000] .....  7966.380337: smb3_connect_err: rc=-101 conn_id=0x4 server=::2 addr=[::2]:445/0%0
      mount.cifs-14810   [000] .....  7966.380356: smb3_connect_err: rc=-101 conn_id=0x4 server=::2 addr=[::2]:139/0%0
      mount.cifs-14818   [003] .....  7986.771992: smb3_connect_done: conn_id=0x5 server=127.0.0.9 addr=127.0.0.9:445
      mount.cifs-14825   [008] .....  8008.178109: smb3_connect_err: rc=-115 conn_id=0x6 server=124.23.0.9 addr=124.23.0.9:445
      mount.cifs-14825   [008] .....  8013.298085: smb3_connect_err: rc=-115 conn_id=0x6 server=124.23.0.9 addr=124.23.0.9:139
           cifsd-14553   [006] .....  8036.735615: smb3_reconnect: conn_id=0x1 server=localhost current_mid=32
           cifsd-14743   [010] .....  8036.735644: smb3_reconnect: conn_id=0x3 server=::1 current_mid=29
           cifsd-14743   [010] .....  8039.921740: smb3_connect_err: rc=-111 conn_id=0x3 server=::1 addr=[::1]:445/0%0
           cifsd-14553   [008] .....  8042.993894: smb3_connect_err: rc=-111 conn_id=0x1 server=localhost addr=127.0.0.1:445
           cifsd-14743   [010] .....  8042.993894: smb3_connect_err: rc=-111 conn_id=0x3 server=::1 addr=[::1]:445/0%0
           cifsd-14553   [008] .....  8046.065824: smb3_connect_err: rc=-111 conn_id=0x1 server=localhost addr=127.0.0.1:445
           cifsd-14743   [010] .....  8046.065824: smb3_connect_err: rc=-111 conn_id=0x3 server=::1 addr=[::1]:445/0%0
           cifsd-14553   [008] .....  8049.137796: smb3_connect_done: conn_id=0x1 server=localhost addr=127.0.0.1:445
           cifsd-14743   [010] .....  8049.137796: smb3_connect_done: conn_id=0x3 server=::1 addr=[::1]:445/0%0

Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-11-05 16:20:24 -05:00
Documentation Pin control fixes for the v5.15 series: 2021-10-25 09:47:18 -07:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
arch ARM updates for 5.15: 2021-10-25 10:28:52 -07:00
block block-5.15-2021-10-22 2021-10-22 17:42:13 -10:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-08-30 12:57:10 -07:00
drivers spi: Fix tegra20 build with CONFIG_PM=n once again 2021-10-25 10:46:41 -07:00
fs smb3: add dynamic trace points for socket connection 2021-11-05 16:20:24 -05:00
include ACPI fixes for 5.15-rc7 2021-10-22 09:08:08 -10:00
init bootconfig: init: Fix memblock leak in xbc_make_cmdline() 2021-10-10 22:27:40 -04:00
ipc ipc: remove memcg accounting for sops objects in do_semtimedop() 2021-09-14 10:22:11 -07:00
kernel - Reset clang's Shadow Call Stack on hotplug to prevent it from overflowing 2021-10-24 07:04:21 -10:00
lib linux-kselftest-kunit-fixes-5.15-rc6 2021-10-11 17:25:08 -07:00
mm secretmem: Prevent secretmem_users from wrapping to zero 2021-10-25 11:27:31 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2021-10-21 12:32:41 +01:00
samples samples/bpf: Relicense bpf_insn.h as GPL-2.0-only OR BSD-2-Clause 2021-09-29 16:03:55 +02:00
scripts Tracing fixes for 5.15: 2021-10-16 10:51:41 -07:00
security Merge branch 'ucount-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-10-21 17:27:17 -10:00
sound ALSA: usb-audio: Fix microphone sound on Jieli webcam. 2021-10-19 08:07:01 +02:00
tools Networking fixes for 5.15-rc7, including fixes from netfilter, and can. 2021-10-21 15:36:50 -10:00
usr .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
virt KVM: Remove tlbs_dirty 2021-09-23 11:01:12 -04:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: Add Dave Hansen to the x86 maintainer team 2021-10-21 13:55:42 +02:00
Makefile Linux 5.15-rc7 2021-10-25 11:30:31 -07:00
README

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.