projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 5fd2975) | patch
[SPARC64]: Simplify user fault fixup handling.
authorDavid S. Miller <davem@sunset.davemloft.net>
Thu, 29 Sep 2005 04:06:47 +0000 (21:06 -0700)
committerDavid S. Miller <davem@sunset.davemloft.net>
Thu, 29 Sep 2005 04:06:47 +0000 (21:06 -0700)
commitefdc1e2083e04cc70721d55803889b346c1a3de2
tree9f24fab33f795a69bb2dc43a8f3613392762ff02tree | snapshot (tar.gz zip)
parent5fd29752f09cabff582f65c0ce35518db4c64937commit | 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>
arch/sparc64/lib/user_fixup.c diff | blob | blame | history
arch/sparc64/mm/fault.c diff | blob | blame | history
include/asm-sparc64/uaccess.h diff | blob | blame | history