diff options
Diffstat (limited to 'drivers/md/raid5-cache.c')
| -rw-r--r-- | drivers/md/raid5-cache.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index 2dcbafa8e66c..0b7406ac8ce1 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -745,7 +745,7 @@ static struct bio *r5l_bio_alloc(struct r5l_log *log) struct bio *bio = bio_alloc_bioset(GFP_NOIO, BIO_MAX_PAGES, log->bs); bio_set_op_attrs(bio, REQ_OP_WRITE, 0); - bio->bi_bdev = log->rdev->bdev; + bio_set_dev(bio, log->rdev->bdev); bio->bi_iter.bi_sector = log->rdev->data_offset + log->log_start; return bio; @@ -1313,7 +1313,7 @@ void r5l_flush_stripe_to_raid(struct r5l_log *log) if (!do_flush) return; bio_reset(&log->flush_bio); - log->flush_bio.bi_bdev = log->rdev->bdev; + bio_set_dev(&log->flush_bio, log->rdev->bdev); log->flush_bio.bi_end_io = r5l_log_flush_endio; log->flush_bio.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH; submit_bio(&log->flush_bio); @@ -1691,7 +1691,7 @@ static int r5l_recovery_fetch_ra_pool(struct r5l_log *log, sector_t offset) { bio_reset(ctx->ra_bio); - ctx->ra_bio->bi_bdev = log->rdev->bdev; + bio_set_dev(ctx->ra_bio, log->rdev->bdev); bio_set_op_attrs(ctx->ra_bio, REQ_OP_READ, 0); ctx->ra_bio->bi_iter.bi_sector = log->rdev->data_offset + offset; @@ -2529,11 +2529,18 @@ static void r5l_write_super(struct r5l_log *log, sector_t cp) static ssize_t r5c_journal_mode_show(struct mddev *mddev, char *page) { - struct r5conf *conf = mddev->private; + struct r5conf *conf; int ret; - if (!conf->log) + ret = mddev_lock(mddev); + if (ret) + return ret; + + conf = mddev->private; + if (!conf || !conf->log) { + mddev_unlock(mddev); return 0; + } switch (conf->log->r5c_journal_mode) { case R5C_JOURNAL_MODE_WRITE_THROUGH: @@ -2551,6 +2558,7 @@ static ssize_t r5c_journal_mode_show(struct mddev *mddev, char *page) default: ret = 0; } + mddev_unlock(mddev); return ret; } |