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Wenchao Hao cb6c33d4dc cma: tracing: print alloc result in trace_cma_alloc_finish
The result of the allocation attempt is not printed in
trace_cma_alloc_finish, but it's important to do it so we can set filters
to catch specific errors on allocation or to trigger some operations on
specific errors.

We have printed the result in log, but the log is conditional and could
not be filtered by tracing events.

It introduces little overhead to print this result.  The result of
allocation is named `errorno' in the trace.

Link: https://lkml.kernel.org/r/20221208142130.1501195-1-haowenchao@huawei.com
Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-01-18 17:12:41 -08:00
arch mm/uffd: always wr-protect pte in pte|pmd_mkuffd_wp() 2023-01-18 17:12:37 -08:00
block block-6.2-2023-01-13 2023-01-13 17:41:19 -06:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto This update includes the following changes: 2022-12-14 12:31:09 -08:00
Documentation Sync with v6.2-rc4 2023-01-18 16:52:20 -08:00
drivers - Fix the EDAC device's confusion in the polling setting units 2023-01-15 07:12:58 -06:00
fs mpage: use b_folio in do_mpage_readpage() 2023-01-18 17:12:41 -08:00
include cma: tracing: print alloc result in trace_cma_alloc_finish 2023-01-18 17:12:41 -08:00
init Sync with v6.2-rc4 2023-01-18 16:52:20 -08:00
io_uring io_uring: lock overflowing for IOPOLL 2023-01-13 07:32:46 -07:00
ipc Non-MM patches for 6.2-rc1. 2022-12-12 17:28:58 -08:00
kernel mm/memfd: add MFD_NOEXEC_SEAL and MFD_EXEC 2023-01-18 17:12:37 -08:00
lib lib/test_vmalloc.c: add parameter use_huge for fix_size_alloc_test 2023-01-18 17:12:41 -08:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm cma: tracing: print alloc result in trace_cma_alloc_finish 2023-01-18 17:12:41 -08:00
net Including fixes from rxrpc. 2023-01-12 18:20:44 -06:00
rust rust: types: add Opaque type 2022-12-04 01:59:16 +01:00
samples Char/Misc driver changes for 6.2-rc1 2022-12-16 03:49:24 -08:00
scripts kernel hardening fixes for v6.2-rc4 2023-01-14 10:04:00 -06:00
security kernel hardening fixes for v6.2-rc1 2022-12-23 12:00:24 -08:00
sound sound fixes for 6.2-rc4 2023-01-13 08:20:29 -06:00
tools selftests/memfd: add tests for MFD_NOEXEC_SEAL MFD_EXEC 2023-01-18 17:12:37 -08:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt KVM: Ensure lockdep knows about kvm->lock vs. vcpu->mutex ordering rule 2023-01-11 13:32:21 -05:00
.clang-format iommufd for 6.2 2022-12-14 09:15:43 -08:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore *.rpm 2022-12-30 17:22:14 +09:00
.mailmap Sync with v6.2-rc4 2023-01-18 16:52:20 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: zram: zsmalloc: Add an additional co-maintainer 2022-12-15 16:37:49 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Sync with v6.2-rc4 2023-01-18 16:52:20 -08:00
Makefile Linux 6.2-rc4 2023-01-15 09:22:43 -06:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.