sparc64: Convert U3copy_{from,to}_user to accurate exception reporting.

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Report the exact number of bytes which have not been successfully
copied when an exception occurs, using the running remaining length.

Signed-off-by: David S. Miller <davem@davemloft.net>

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David S. Miller 2016-10-24 21:20:35 -07:00

parent e93704e446

commit ee841d0aff

3 changed files with 162 additions and 81 deletions

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8

arch/sparc/lib/U3copy_from_user.S

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8

arch/sparc/lib/U3copy_to_user.S

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227

arch/sparc/lib/U3memcpy.S

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