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Leon Romanovsky 103140eccb RDMA/restrack: Move restrack_clean to be symmetrical to restrack_init 
The fact that resource tracking commit 02d8883f52 ("RDMA/restrack: Add
general infrastructure to track RDMA resources") was added immediately
after commit 16c1975f10 ("IB/mlx5: Create profile infrastructure to add
and remove stages") caused us to miss the fact that PD and CQ are created
after ib_register_device, but released after ib_unregister_device() and
not before as it is expected from normal flow.

Fix introduced in commit 42cea83f95 ("IB/mlx5: Fix cleanup order on
unload") revealed this fact, so this patch is needed to avoid from
restrack warnings

It fixes resource tracking warnings during shutdown.

[   43.473906] CPU: 5 PID: 3016 Comm: modprobe Not tainted 4.16.0-rc5-for-linust-perf-2018-03-19_07-01-58-14 #1
[   43.473907] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu2 04/01/2014
[   43.473919] RIP: 0010:rdma_restrack_clean+0x25/0x30 [ib_core]
[   43.473921] RSP: 0018:ffffc9000267be48 EFLAGS: 00010282
[   43.473924] RAX: 0000000000000000 RBX: ffff88033c690070 RCX: 0000000180080006
[   43.473925] RDX: ffff88035ce922e0 RSI: ffffea000cf1a200 RDI: ffff88033c6907c8
[   43.473926] RBP: ffff88033c690070 R08: ffff88033c689000 R09: 0000000180080006
[   43.473927] R10: 000000003c68a001 R11: ffff88033c689000 R12: ffff88033c690000
[   43.473929] R13: ffff88033c69005c R14: 0000000000000000 R15: 0000000000000000
[   43.473932] FS:  00007f5928359740(0000) GS:ffff88036c540000(0000) knlGS:0000000000000000
[   43.473933] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.473935] CR2: 00007ffffc760cc8 CR3: 000000035620c000 CR4: 00000000000006e0
[   43.473940] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   43.473941] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   43.473942] Call Trace:
[   43.473969]  ib_unregister_device+0xf5/0x190 [ib_core]
[   43.474000]  __mlx5_ib_remove+0x2e/0x40 [mlx5_ib]
[   43.474098]  mlx5_remove_device+0xf5/0x120 [mlx5_core]
[   43.474132]  mlx5_unregister_interface+0x37/0x90 [mlx5_core]
[   43.474142]  mlx5_ib_cleanup+0xc/0x16a [mlx5_ib]
[   43.474152]  SyS_delete_module+0x159/0x260
[   43.474159]  do_syscall_64+0x61/0x110
[   43.474165]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   43.474168] RIP: 0033:0x7f59278466b7
[   43.474170] RSP: 002b:00007ffffc763e38 EFLAGS: 00000202 ORIG_RAX: 00000000000000b0
[   43.474172] RAX: ffffffffffffffda RBX: 000000000130d590 RCX: 00007f59278466b7
[   43.474173] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 000000000130d5f8
[   43.474175] RBP: 0000000000000000 R08: 00007f5927b0b060 R09: 00007f59278b6a40
[   43.474176] R10: 00007ffffc763bc0 R11: 0000000000000202 R12: 0000000000000000
[   43.474177] R13: 0000000000000001 R14: 000000000130d5f8 R15: 0000000000000000
[   43.474179] Code: 84 00 00 00 00 00 0f 1f 44 00 00 48 83 c7 28 31 c0
eb 0c 48 83 c0 08 48 3d 00 08 00 00 74 0f 48 8d 14 07 48 8b 12 48 85 d2
74 e8 <0f> 0b c3 f3 c3 66 0f 1f 44 00 00 0f 1f 44 00 00 53 48 8b 47 28
[   43.474221] ---[ end trace e89771e2250ffc23 ]---

Fixes: 42cea83f95 ("IB/mlx5: Fix cleanup order on unload")
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-21 14:22:22 -06:00
arch unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
block vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
certs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crypto vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
Documentation KVM changes for 4.16 2018-02-10 13:16:35 -08:00
drivers RDMA/restrack: Move restrack_clean to be symmetrical to restrack_init 2018-03-21 14:22:22 -06:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
include RDMA/verbs: Remove restrack entry from XRCD structure 2018-03-19 14:10:30 -06:00
init membarrier: Provide core serializing command, *_SYNC_CORE 2018-02-05 21:35:03 +01:00
ipc vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
kernel vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
lib Kbuild updates for v4.16 (2nd) 2018-02-09 19:32:41 -08:00
LICENSES LICENSES: Add MPL-1.1 license 2018-01-06 10:59:44 -07:00
mm vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
net vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
samples sample/bpf: fix erspan metadata 2018-02-06 11:32:49 -05:00
scripts Kbuild updates for v4.16 (2nd) 2018-02-09 19:32:41 -08:00
security vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
sound vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-09 15:34:18 -08:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore scripts/package: snap-pkg target 2017-12-13 00:00:18 +09:00
.mailmap mailmap: update Mark Yao's email address 2018-01-04 16:45:09 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS KVM changes for 4.16 2018-02-10 13:16:35 -08:00
Makefile Linux 4.16-rc1 2018-02-11 15:04:29 -08:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README 

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.