David S. Miller efdc1e2083 [SPARC64]: Simplify user fault fixup handling. ...

Instead of doing byte-at-a-time user accesses to figure
out where the fault occurred, read the saved fault_address
from the current thread structure.

For the sake of defensive programming, if the fault_address
does not fall into the user buffer range, simply assume the
whole area faulted.  This will cause the fixup for
copy_from_user() to clear the entire kernel side buffer.

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

2005-09-28 21:06:47 -07:00

1.6 KiB

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