diff options
| author | Javier González <javier@javigon.com> | 2018-10-09 13:12:07 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-10-09 08:25:08 -0600 |
| commit | 44cdbdc657b23f75736eca3e88b781f009104363 (patch) | |
| tree | db6d14e7d352ee04ff6f7ec6ea20a34fdf990d8d /mm/mlock.c | |
| parent | 02a1520d56d11982ccc8eab56e4c562fd05d2c86 (diff) | |
| download | linux-44cdbdc657b23f75736eca3e88b781f009104363.tar.bz2 | |
lightnvm: pblk: fix race on sysfs line state
pblk exposes a sysfs interface that represents its internal state. Part
of this state is the map bitmap for the current open line, which should
be protected by the line lock to avoid a race when freeing the line
metadata. Currently, it is not.
This patch makes sure that the line state is consistent and NULL
bitmap pointers are not dereferenced.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'mm/mlock.c')
0 files changed, 0 insertions, 0 deletions