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| author | Christoph Hellwig <hch@lst.de> | 2024-06-17 08:04:48 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-06-19 07:58:28 -0600 |
| commit | 8023e144f9d6e35f8786937e2f0c2fea0aba6dbc (patch) | |
| tree | 5c3e0b93942aa38e885554f1b06926fdd6992ba0 /block/blk-core.c | |
| parent | f467fee48da4500786e145489787b37adae317c3 (diff) | |
| download | lwn-8023e144f9d6e35f8786937e2f0c2fea0aba6dbc.tar.gz lwn-8023e144f9d6e35f8786937e2f0c2fea0aba6dbc.zip | |
block: move the poll flag to queue_limits
Move the poll flag into the queue_limits feature field so that it can
be set atomically with the queue frozen.
Stacking drivers are simplified in that they now can simply set the
flag, and blk_stack_limits will clear it when the features is not
supported by any of the underlying devices.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20240617060532.127975-22-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 2b45a4df9a1a..8d9fbd353fc7 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -791,7 +791,7 @@ void submit_bio_noacct(struct bio *bio) } } - if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags)) + if (!(q->limits.features & BLK_FEAT_POLL)) bio_clear_polled(bio); switch (bio_op(bio)) { @@ -915,8 +915,7 @@ int bio_poll(struct bio *bio, struct io_comp_batch *iob, unsigned int flags) return 0; q = bdev_get_queue(bdev); - if (cookie == BLK_QC_T_NONE || - !test_bit(QUEUE_FLAG_POLL, &q->queue_flags)) + if (cookie == BLK_QC_T_NONE || !(q->limits.features & BLK_FEAT_POLL)) return 0; blk_flush_plug(current->plug, false); |