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| author |   Tejun Heo <tj@kernel.org> | 2008-11-28 13:32:04 +0900 |
|---|---|---|
| committer |   Jens Axboe <jens.axboe@oracle.com> | 2008-12-29 08:28:45 +0100 |
| commit | f671620e7d895af221bdfeda751d54fa55ed9546 (patch) | |
| tree | beeb843a4a356d94b6b4faec97e078b2a4ad1f09 /block/elevator.c | |
| parent | block: remove duplicate or unused barrier/discard error paths (diff) | |
| download | linux-dev-f671620e7d895af221bdfeda751d54fa55ed9546.tar.xz linux-dev-f671620e7d895af221bdfeda751d54fa55ed9546.zip | |
block: make every barrier action optional
In all barrier sequences, the barrier write itself was always assumed
to be issued and thus didn't have corresponding control flag. This
patch adds QUEUE_ORDERED_DO_BAR and unify action mask handling in
start_ordered() such that any barrier action can be skipped.
This patch doesn't introduce any visible behavior changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/elevator.c')
0 files changed, 0 insertions, 0 deletions