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lightnvm: pblk: fix changing GC group list for a line

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[ Upstream commit 27b978725d895e704aab44b99242a0514485d798 ]

pblk_line_gc_list seems to had a bug since the introduction of pblk in
getting GC list for a line. In b20ba1bc7 while redesigning the GC
algorithm, the naming for the GC thresholds was altered, but the
values for high_thrs and mid_thrs were not. The result is that when
moving to the GC lists, the mid threshold is never evaluated.

Fixes: a4bd217b4("lightnvm: physical block device (pblk) target")
Signed-off-by: Rakesh Pandit <rakesh@tuxera.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rakesh Pandit 2017-10-13 14:46:28 +02:00 committed by Greg Kroah-Hartman
parent 1b07f7511a
commit e22f692fba
1 changed files with 2 additions and 2 deletions
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4
drivers/lightnvm/pblk-init.c
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@ -681,8 +681,8 @@ static int pblk_lines_init(struct pblk *pblk)
lm->blk_bitmap_len = BITS_TO_LONGS(geo->nr_luns) * sizeof(long);
lm->sec_bitmap_len = BITS_TO_LONGS(lm->sec_per_line) * sizeof(long);
lm->lun_bitmap_len = BITS_TO_LONGS(geo->nr_luns) * sizeof(long);
lm->high_thrs = lm->sec_per_line / 2;
lm->mid_thrs = lm->sec_per_line / 4;
lm->mid_thrs = lm->sec_per_line / 2;
lm->high_thrs = lm->sec_per_line / 4;
lm->meta_distance = (geo->nr_luns / 2) * pblk->min_write_pgs;
/* Calculate necessary pages for smeta. See comment over struct