tree 75f55f54c2b399eae5c1b25c83e8f3fbce908efb
parent 1368d95b060802f3032bb662144faa99bd521b56
author Vincent Fu <vincent.fu@wdc.com> 1539792203 -0400
committer Jens Axboe <axboe@kernel.dk> 1539968957 -0600

fio: enable cross-thread overlap checking with processes

Overlap checking with io_submit_mode=offload requires relevant jobs to
access each other's io_u's and io_u_all members. This patch modifies the
fio_memalign and io_u_queue helpers to include an indicator signifying
whether operations should use the shared memory pool. When fio is
carrying out cross-job overlap checking in offload submission mode,
these variables will be allocated from shared memory so that processes
can be used and threads will no longer be required.

Signed-off-by: Jens Axboe <axboe@kernel.dk>