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lightnvm: pblk: rollback on error during gc read 

A line is left unsigned to the blocks lists in case pblk_gc_line
returns an error.

This moves the line back to be appropriate list, which can then be
picked up by the garbage collector.

Signed-off-by: Igor Konopko <igor.j.konopko@intel.com>
Reviewed-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
hifive-unleashed-5.2
Igor Konopko 2019-05-04 20:37:47 +02:00 committed by Jens Axboe
parent 7e5434eece
commit 8935ebfc5d
1 changed files with 6 additions and 1 deletions
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7
drivers/lightnvm/pblk-gc.c
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@ -358,8 +358,13 @@ static int pblk_gc_read(struct pblk *pblk)
pblk_gc_kick(pblk);
if (pblk_gc_line(pblk, line))
if (pblk_gc_line(pblk, line)) {
pblk_err(pblk, "failed to GC line %d\n", line->id);
/* rollback */
spin_lock(&gc->r_lock);
list_add_tail(&line->list, &gc->r_list);
spin_unlock(&gc->r_lock);
}
return 0;
}