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Leon Romanovsky 7922d3de4d Revert "RDMA/core: Fix ib_qp_usecnt_dec() called when error" This reverts commit `7c4a539ec3`. which causes to the following error in mlx4. Destroy of kernel CQ shouldn't fail WARNING: CPU: 4 PID: 18064 at include/rdma/ib_verbs.h:3936 mlx4_ib_dealloc_xrcd+0x12e/0x1b0 [mlx4_ib] Modules linked in: bonding ib_ipoib ip_gre ipip tunnel4 geneve rdma_ucm nf_tables ib_umad mlx4_en mlx4_ib ib_uverbs mlx4_core ip6_gre gre ip6_tunnel tunnel6 iptable_raw openvswitch nsh rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter overlay fuse [last unloaded: mlx4_core] CPU: 4 PID: 18064 Comm: ibv_xsrq_pingpo Not tainted 5.17.0-rc7_master_62c6ecb #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:mlx4_ib_dealloc_xrcd+0x12e/0x1b0 [mlx4_ib] Code: 1e 93 08 00 40 80 fd 01 0f 87 fa f1 04 00 83 e5 01 0f 85 2b ff ff ff 48 c7 c7 20 4f b6 a0 c6 05 fd 92 08 00 01 e8 47 c9 82 e2 <0f> 0b e9 11 ff ff ff 0f b6 2d eb 92 08 00 40 80 fd 01 0f 87 b1 f1 RSP: 0018:ffff8881a4957750 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8881ac4b6800 RCX: 0000000000000000 RDX: 0000000000000027 RSI: 0000000000000004 RDI: ffffed103492aedc RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8884d2e378eb R10: ffffed109a5c6f1d R11: 0000000000000001 R12: ffff888132620000 R13: ffff8881a4957a90 R14: ffff8881aa2d4000 R15: ffff8881a4957ad0 FS: 00007f0401747740(0000) GS:ffff8884d2e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f8ae036118 CR3: 000000012fe94005 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ib_dealloc_xrcd_user+0xce/0x120 [ib_core] ib_uverbs_dealloc_xrcd+0xad/0x210 [ib_uverbs] uverbs_free_xrcd+0xe8/0x190 [ib_uverbs] destroy_hw_idr_uobject+0x7a/0x130 [ib_uverbs] uverbs_destroy_uobject+0x164/0x730 [ib_uverbs] uobj_destroy+0x72/0xf0 [ib_uverbs] ib_uverbs_cmd_verbs+0x19fb/0x3110 [ib_uverbs] ib_uverbs_ioctl+0x169/0x260 [ib_uverbs] __x64_sys_ioctl+0x856/0x1550 do_syscall_64+0x3d/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae Fixes: `7c4a539ec3` ("RDMA/core: Fix ib_qp_usecnt_dec() called when error") Link: https://lore.kernel.org/r/74c11029adaf449b3b9228a77cc82f39e9e892c8.1646851220.git.leonro@nvidia.com Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>		2022-03-14 20:39:21 -03:00
arch	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
block	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
certs	certs: Fix build error when CONFIG_MODULE_SIG_KEY is empty	2022-01-23 00:08:44 +09:00
crypto	lib/crypto: add prompts back to crypto libraries	2022-01-18 13:03:55 +01:00
Documentation	Merge branch 'akpm' (patches from Andrew)	2022-01-22 11:28:23 +02:00
drivers	Revert "RDMA/core: Fix ib_qp_usecnt_dec() called when error"	2022-03-14 20:39:21 -03:00
fs	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
include	ice: add support for DSCP QoS for IDC	2022-02-03 15:22:03 -08:00
init	lib/stackdepot: allow optional init and stack_table allocation by kvmalloc()	2022-01-22 08:33:37 +02:00
ipc	proc: remove PDE_DATA() completely	2022-01-22 08:33:37 +02:00
kernel	ftrace: Fix s390 breakage from sorting mcount tables	2022-01-23 08:07:02 +02:00
lib	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
LICENSES	LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers	2021-12-16 14:33:10 +01:00
mm	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
net	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
samples	Merge branch 'akpm' (patches from Andrew)	2022-01-20 10:41:01 +02:00
scripts	Devicetree fixes for v5.17, take 1:	2022-01-22 09:52:17 +02:00
security	fs.idmapped.v5.17	2022-01-11 14:26:55 -08:00
sound	proc: remove PDE_DATA() completely	2022-01-22 08:33:37 +02:00
tools	perf tools changes for v5.17: 2nd batch	2022-01-23 08:14:21 +02:00
usr	usr/include/Makefile: add linux/nfc.h to the compile-test coverage	2022-01-22 21:48:45 +09:00
virt	Generic:	2022-01-22 09:40:01 +02:00
.clang-format	genirq/msi: Make interrupt allocation less convoluted	2021-12-16 22:22:20 +01:00
.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: ignore only top-level modules.builtin	2021-05-02 00:43:35 +09:00
.mailmap	RISCV:	2022-01-16 16:15:14 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Removing Ohad from remoteproc/rpmsg maintenance	2021-12-08 10:09:40 -07:00
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	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
Makefile	Linux 5.17-rc1	2022-01-23 10:12:53 +02:00
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.