generic swap(): dcache: use swap() instead of private do_switch()

Use the new generic implementation.

Signed-off-by: Wu Fengguang <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
1 file changed