diff options
| author | Christoph Böhmwalder <christoph.boehmwalder@linbit.com> | 2026-02-05 18:39:29 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-02-11 10:35:56 -0700 |
| commit | 2ebc8d600fb907fa6b1e7095c0b6d84fc47e91ea (patch) | |
| tree | 0b2f231ef362b701f07a13826d69d0b85f1617c7 /block | |
| parent | 192c0159402e6bfbe13de6f8379546943297783d (diff) | |
drbd: always set BLK_FEAT_STABLE_WRITES
DRBD requires stable pages because it may read the same bio data
multiple times for local disk I/O and network transmission, and in
some cases for calculating checksums.
The BLK_FEAT_STABLE_WRITES flag is set when the device is first
created, but blk_set_stacking_limits() clears it whenever a
backing device is attached. In some cases the flag may be
inherited from the backing device, but we want it to be enabled
at all times.
Unconditionally re-enable BLK_FEAT_STABLE_WRITES in
drbd_reconsider_queue_parameters() after the queue parameter
negotiations.
Also, document why we want this flag enabled in the first place.
Fixes: 1a02f3a73f8c ("block: move the stable_writes flag to queue_limits")
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions