block: set REQ_SYNC if we clear REQ_FUA|REQ_PREFLUSH

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If we insert a flush request, we clear REQ_PREFLUSH and/or REQ_FUA,
depending on flush settings. Since op_is_sync() factors those flags
in for deciding whether this request is sync or not, we should
set REQ_SYNC to avoid screwing up this accounting.

This should be less fragile.

Reported-by: Logan Gunthorpe <logang@deltatee.com>
Fixes: b685d3d65a ("block: treat REQ_FUA and REQ_PREFLUSH as synchronous")
Signed-off-by: Jens Axboe <axboe@fb.com>

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Jens Axboe 2016-11-08 19:39:28 -07:00

parent b57d74aff9

commit ae5b2ec8ad

1 changed files with 7 additions and 0 deletions

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block/blk-flush.c

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