Akinobu Mita d472cf797c debugfs: fix error when writing negative value to atomic_t debugfs file ...

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/[email protected]
Fixes: 488dac0c92 ("libfs: fix error cast of negative value in simple_attr_write()")
Signed-off-by: Akinobu Mita <[email protected]>
Reported-by: Zhao Gongyi <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Reviewed-by: Greg Kroah-Hartman <[email protected]>
Cc: Alexander Viro <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Oscar Salvador <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Wei Yongjun <[email protected]>
Cc: Yicong Yang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

2022-11-30 16:13:16 -08:00

..

file.c

debugfs: fix error when writing negative value to atomic_t debugfs file

2022-11-30 16:13:16 -08:00

inode.c

debugfs: Only clobber mode/uid/gid on remount if asked

2022-09-24 14:01:37 +02:00

internal.h

debugfs: Add access restriction option

2020-07-23 17:10:25 +02:00

Makefile

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