tree e196939ff1df56179387f0ec440cc9ce52cf1f55
parent fd61af0384014ca29428ace7c17a978b755aeddd
author Jens Axboe <axboe@suse.de> 1150808472 +0200
committer Jens Axboe <axboe@nelson.home.kernel.dk> 1151075439 +0200

[PATCH] splice: retrieve mapping after locking the page

Otherwise we could be racing with truncate/mapping removal.

Problem found/fixed by Nick Piggin <npiggin@suse.de>, logic rewritten
by me.

Signed-off-by: Jens Axboe <axboe@suse.de>