AcoSail/kernel_optimize_test
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lightnvm: move the pages per block check out of the loop

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There is no need to check whether dev's pages per block is
beyond rrpc support every time we init a lun, we only need
to check it once before enter the lun init loop.

Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Wenwei Tao 2016-01-12 07:49:27 +01:00 committed by Jens Axboe
parent 556755e941
commit 4b79beb4c3
1 changed files with 5 additions and 6 deletions
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11
drivers/lightnvm/rrpc.c
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@ -1114,6 +1114,11 @@ static int rrpc_luns_init(struct rrpc *rrpc, int lun_begin, int lun_end)
struct rrpc_lun *rlun;
int i, j;
if (dev->pgs_per_blk > MAX_INVALID_PAGES_STORAGE * BITS_PER_LONG) {
pr_err("rrpc: number of pages per block too high.");
return -EINVAL;
}
spin_lock_init(&rrpc->rev_lock);
rrpc->luns = kcalloc(rrpc->nr_luns, sizeof(struct rrpc_lun),
@ -1125,12 +1130,6 @@ static int rrpc_luns_init(struct rrpc *rrpc, int lun_begin, int lun_end)
for (i = 0; i < rrpc->nr_luns; i++) {
struct nvm_lun *lun = dev->mt->get_lun(dev, lun_begin + i);
if (dev->pgs_per_blk >
MAX_INVALID_PAGES_STORAGE * BITS_PER_LONG) {
pr_err("rrpc: number of pages per block too high.");
goto err;
}
rlun = &rrpc->luns[i];
rlun->rrpc = rrpc;
rlun->parent = lun;