From 8935ebfc5d462891e9dccec1f5cf438fb7bb96b4 Mon Sep 17 00:00:00 2001 From: Igor Konopko Date: Sat, 4 May 2019 20:37:47 +0200 Subject: 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 Reviewed-by: Hans Holmberg Reviewed-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/lightnvm/pblk-gc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c index 901e49951ab5..65692e6d76e6 100644 --- a/drivers/lightnvm/pblk-gc.c +++ b/drivers/lightnvm/pblk-gc.c @@ -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; } -- cgit v1.2.3