xtensa: implement flush_icache_user_range

The Xtensa implementation of flush_icache_range seems to be able to cope
with user addresses.  Just define flush_icache_user_range to
flush_icache_range.

[[email protected]: fix flush_icache_user_range in noMMU configs]
  Link: http://lkml.kernel.org/r/[email protected]

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: Max Filippov <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
1 file changed