kernel.git/drivers/lightnvm/pblk.h, branch linux-4.16.y

lightnvm: pblk: refactor pblk_ppa_comp function

2018-01-05T15:50:12Z

Shorten function to simply return the value of the if statement. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: pblk: add iostat support

2018-01-05T15:50:12Z

Since pblk registers its own block device, the iostat accounting is not automatically done for us. Therefore, add the necessary accounting logic to satisfy the iostat interface. Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: pblk: do not log recovery read errors

2018-01-05T15:50:12Z

On scan recovery, reads can fail. This happens because the first page for each line is read in order to determined if the line has been used (and thus needs to be recovered), or not. This can lead to "empty page" read errors. Since these errors are normal, do not log them, as they are confusing when reviewing the logs. Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: set target over-provision on create ioctl

2018-01-05T15:50:12Z

Allow to set the over-provision percentage on target creation. In case that the value is not provided, fall back to the default value set by the target. In pblk, set the default OP to 11% of the total size of the device Signed-off-by: Javier González Signed-off-by: Hans Holmberg Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: pblk: use exact free block counter in RL

2018-01-05T15:50:12Z

Until now, pblk's rate-limiter has used a heuristic to reserve space for GC I/O given that the over-provision area was fixed. In preparation for allowing to define the over-provision area on target creation, define a dedicated free_block counter in the rate-limiter to track the number of blocks being used for user data. Signed-off-by: Javier González Signed-off-by: Hans Holmberg Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: pblk: rename sync_point to flush_point

2018-01-05T15:50:12Z

Sync point is a really confusing name for keeping track of the last entry that needs to be flushed so change the name to to flush_point instead. Signed-off-by: Hans Holmberg Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: pblk: refactor emeta consistency check

2018-01-05T15:50:12Z

Currently pblk_recov_get_lba list does two separate things: it checks the consistency of the emeta and extracts the lba list. This patch separates the consistency check to make the code easier to read and to prepare for version checks of the line emeta persistent data format version. Signed-off-by: Hans Holmberg Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: pblk: remove pblk_for_each_lun helper

2018-01-05T15:50:12Z

Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: pblk: compress and reorder helper functions

2018-01-05T15:50:12Z

Through time, we have generated some redundant helper functions. Refactor them to eliminate redundant and unnecessary code. Also, reorder them to improve readability Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: make geometry structures 2.0 ready

2018-01-05T15:50:12Z

Prepare for the 2.0 revision by adapting the geometry structures to coexist with the 1.2 revision. Signed-off-by: Matias Bjørling Reviewed-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe