7bebfe9dd8
Sysfs show formats of files in /sys/devices/cpu/events/ are not unified,
some end with "\n", and some do not. Modify sysfs show format of events
defined by EVENT_ATTR_STR to end with "\n".
Before:
$ ls /sys/devices/cpu/events/* | xargs -i sh -c 'echo -n "{}: "; cat -A {}; echo'
branch-instructions: event=0xc4$
branch-misses: event=0xc5$
bus-cycles: event=0x3c,umask=0x01$
cache-misses: event=0x2e,umask=0x41$
cache-references: event=0x2e,umask=0x4f$
cpu-cycles: event=0x3c$
instructions: event=0xc0$
ref-cycles: event=0x00,umask=0x03$
slots: event=0x00,umask=0x4
topdown-bad-spec: event=0x00,umask=0x81
topdown-be-bound: event=0x00,umask=0x83
topdown-fe-bound: event=0x00,umask=0x82
topdown-retiring: event=0x00,umask=0x80
After:
$ ls /sys/devices/cpu/events/* | xargs -i sh -c 'echo -n "{}: "; cat -A {}; echo'
/sys/devices/cpu/events/branch-instructions: event=0xc4$
/sys/devices/cpu/events/branch-misses: event=0xc5$
/sys/devices/cpu/events/bus-cycles: event=0x3c,umask=0x01$
/sys/devices/cpu/events/cache-misses: event=0x2e,umask=0x41$
/sys/devices/cpu/events/cache-references: event=0x2e,umask=0x4f$
/sys/devices/cpu/events/cpu-cycles: event=0x3c$
/sys/devices/cpu/events/instructions: event=0xc0$
/sys/devices/cpu/events/ref-cycles: event=0x00,umask=0x03$
/sys/devices/cpu/events/slots: event=0x00,umask=0x4$
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220324031957.135595-1-yangjihong1@huawei.com
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.