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Akinobu Mita
d472cf797c
The simple attribute files do not accept a negative value since the commit488dac0c92("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]>