| commit | efdc1e2083e04cc70721d55803889b346c1a3de2 | [log] [tgz] |
|---|---|---|
| author | David S. Miller <davem@sunset.davemloft.net> | Wed Sep 28 21:06:47 2005 -0700 |
| committer | David S. Miller <davem@sunset.davemloft.net> | Wed Sep 28 21:06:47 2005 -0700 |
| tree | 9f24fab33f795a69bb2dc43a8f3613392762ff02 | |
| parent | 5fd29752f09cabff582f65c0ce35518db4c64937 [diff] |
[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>