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| author |   Javier González <javier@javigon.com> | 2018-06-01 15:04:24 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2018-06-01 07:43:53 -0600 |
| commit | a7c9e9109ca1142f33b882615cc5fa048e07f3ea (patch) | |
| tree | d82d1ed53aa6053714b27c2fcd491fc9c32d0c2f /include | |
| parent | lightnvm: pblk: check for chunk size before allocating it (diff) | |
| download | linux-dev-a7c9e9109ca1142f33b882615cc5fa048e07f3ea.tar.xz linux-dev-a7c9e9109ca1142f33b882615cc5fa048e07f3ea.zip | |
lightnvm: pass flag on graceful teardown to targets
If the namespace is unregistered before the LightNVM target is removed
(e.g., on hot unplug) it is too late for the target to store any metadata
on the device - any attempt to write to the device will fail. In this
case, pass on a "gracefull teardown" flag to the target to let it know
when this happens.
In the case of pblk, we pad the open line (close all open chunks) to
improve data retention. In the event of an ungraceful shutdown, avoid
this part and just clean up.
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 'include')
| -rw-r--r-- | include/linux/lightnvm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index 6e0859b9d4d2..e9e0d1c7eaf5 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -489,7 +489,7 @@ typedef blk_qc_t (nvm_tgt_make_rq_fn)(struct request_queue *, struct bio *); typedef sector_t (nvm_tgt_capacity_fn)(void *); typedef void *(nvm_tgt_init_fn)(struct nvm_tgt_dev *, struct gendisk *, int flags); -typedef void (nvm_tgt_exit_fn)(void *); +typedef void (nvm_tgt_exit_fn)(void *, bool); typedef int (nvm_tgt_sysfs_init_fn)(struct gendisk *); typedef void (nvm_tgt_sysfs_exit_fn)(struct gendisk *); |