mm/zswap.c: avoid unnecessary copy-in at map time

The buf mapped via zpool_map_handle() is only used to store compressed
page buffer and there is no information to extract from it. So we could
use ZPOOL_MM_WO instead to avoid unnecessary copy-in at map time.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Miaohe Lin <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Dan Streetman <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Sebastian Andrzej Siewior <[email protected]>
Cc: Seth Jennings <[email protected]>
Cc: Tian Tao <[email protected]>
Cc: Vitaly Wool <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions