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| author | Omri Mann <omri@nvidia.com> | 2025-04-21 13:59:50 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-04-21 09:25:41 -0600 |
| commit | 98b995660bff011d8e00af03abd74ac7d1ac1390 (patch) | |
| tree | 62feac730bd053a08e406a87c52167b7a6a6a577 /rust/helpers/rbtree.c | |
| parent | 033b667a823ee403509e7156bc7fa335bd566bff (diff) | |
ublk: Add UBLK_U_CMD_UPDATE_SIZE
Currently ublk only allows the size of the ublkb block device to be
set via UBLK_CMD_SET_PARAMS before UBLK_CMD_START_DEV is triggered.
This does not provide support for extendable user-space block devices
without having to stop and restart the underlying ublkb block device
causing IO interruption.
This patch adds a new ublk command UBLK_U_CMD_UPDATE_SIZE to allow the
ublk block device to be resized on-the-fly.
Feature flag UBLK_F_UPDATE_SIZE is also added to indicate support.
Signed-off-by: Omri Mann <omri@nvidia.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/2a370ab1-d85b-409d-b762-f9f3f6bdf705@nvidia.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'rust/helpers/rbtree.c')
0 files changed, 0 insertions, 0 deletions