GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-23 07:01:23 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
Star64_linux/Documentation/fault-injection
History
Exact
Akinobu Mita e78c33f453 debugfs: fix error when writing negative value to atomic_t debugfs file 
[ Upstream commit d472cf797c ]

The simple attribute files do not accept a negative value since the commit
488dac0c92 ("libfs: fix error cast of negative value in
simple_attr_write()"), so we have to use a 64-bit value to write a
negative value for a debugfs file created by debugfs_create_atomic_t().

This restores the previous behaviour by introducing
DEFINE_DEBUGFS_ATTRIBUTE_SIGNED for a signed value.

Link: https://lkml.kernel.org/r/20220919172418.45257-4-akinobu.mita@gmail.com
Fixes: 488dac0c92 ("libfs: fix error cast of negative value in simple_attr_write()")
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reported-by: Zhao Gongyi <zhaogongyi@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-19 17:57:15 +08:00
..
fault-injection.rst debugfs: fix error when writing negative value to atomic_t debugfs file 2023-04-19 17:57:15 +08:00
index.rst docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
notifier-error-inject.rst docs: fault-injection: convert docs to ReST and rename to *.rst 2019-06-14 14:21:07 -06:00
nvme-fault-injection.rst nvme: rename and document nvme_end_request 2020-08-21 17:14:28 -06:00
provoke-crashes.rst lkdtm: remove IDE_CORE_CP crashpoint 2021-08-19 07:40:22 +02:00