diff options
| author | Javier González <[email protected]> | 2018-10-09 11:11:35 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2018-10-09 14:25:06 +0000 |
| commit | d8adaa3b86324c6186d0adf74bc256bdacfffdb6 (patch) | |
| tree | 57dc2d2307041907fd8b116876e668565f400b25 /drivers/lightnvm/pblk-init.c | |
| parent | lightnvm: move device L2P detection to core (diff) | |
| download | kernel-d8adaa3b86324c6186d0adf74bc256bdacfffdb6.tar.gz kernel-d8adaa3b86324c6186d0adf74bc256bdacfffdb6.zip | |
lightnvm: pblk: fix race condition on metadata I/O
In pblk, when a new line is allocated, metadata for the previously
written line is scheduled. This is done through a fixed memory region
that is shared through time and contexts across different lines and
therefore protected by a lock. Unfortunately, this lock is not properly
covering all the metadata used for sharing this memory regions,
resulting in a race condition.
This patch fixes this race condition by protecting this metadata
properly.
Fixes: dd2a43437337 ("lightnvm: pblk: sched. metadata on write thread")
Signed-off-by: Javier González <[email protected]>
Signed-off-by: Matias Bjørling <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'drivers/lightnvm/pblk-init.c')
0 files changed, 0 insertions, 0 deletions