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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-24 11:53:15 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-24 11:53:15 -0700 |
commit | c41c3ec4a2bcd3f24ab753bb337ec342f24bdf94 (patch) | |
tree | 4fe1f5576883ab02e118ad0f1502c0df7ffafec1 /drivers/block | |
parent | 2bf74771ca5610b10c3ac4cd17aacc389e6927ca (diff) | |
parent | 2d62e6b038e729c3e4bfbfcfbd44800ef0883680 (diff) | |
download | linux-stable-c41c3ec4a2bcd3f24ab753bb337ec342f24bdf94.tar.gz linux-stable-c41c3ec4a2bcd3f24ab753bb337ec342f24bdf94.tar.bz2 linux-stable-c41c3ec4a2bcd3f24ab753bb337ec342f24bdf94.zip |
Merge tag 'io_uring-5.9-2020-08-23' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request from Sagi:
- nvme completion rework from Christoph and Chao that mostly came
from a bit of divergence of how we classify errors related to
pathing/retry etc.
- nvmet passthru fixes from Chaitanya
- minor nvmet fixes from Amit and I
- mpath round-robin path selection fix from Martin
- ignore noiob for zoned devices from Keith
- minor nvme-fc fix from Tianjia"
- BFQ cgroup leak fix (Dmitry)
- block layer MAINTAINERS addition (Geert)
- fix null_blk FUA checking (Hou)
- get_max_io_size() size fix (Keith)
- fix block page_is_mergeable() for compound pages (Matthew)
- discard granularity fixes (Ming)
- IO scheduler ordering fix (Ming)
- misc fixes
* tag 'io_uring-5.9-2020-08-23' of git://git.kernel.dk/linux-block: (31 commits)
null_blk: fix passing of REQ_FUA flag in null_handle_rq
nvmet: Disable keep-alive timer when kato is cleared to 0h
nvme: redirect commands on dying queue
nvme: just check the status code type in nvme_is_path_error
nvme: refactor command completion
nvme: rename and document nvme_end_request
nvme: skip noiob for zoned devices
nvme-pci: fix PRP pool size
nvme-pci: Use u32 for nvme_dev.q_depth and nvme_queue.q_depth
nvme: Use spin_lock_irq() when taking the ctrl->lock
nvmet: call blk_mq_free_request() directly
nvmet: fix oops in pt cmd execution
nvmet: add ns tear down label for pt-cmd handling
nvme: multipath: round-robin: eliminate "fallback" variable
nvme: multipath: round-robin: fix single non-optimized path case
nvme-fc: Fix wrong return value in __nvme_fc_init_request()
nvmet-passthru: Reject commands with non-sgl flags set
nvmet: fix a memory leak
blkcg: fix memleak for iolatency
MAINTAINERS: Add missing header files to BLOCK LAYER section
...
Diffstat (limited to 'drivers/block')
-rw-r--r-- | drivers/block/loop.c | 33 | ||||
-rw-r--r-- | drivers/block/null_blk_main.c | 2 | ||||
-rw-r--r-- | drivers/block/rnbd/rnbd-srv.c | 3 | ||||
-rw-r--r-- | drivers/block/virtio_blk.c | 31 |
4 files changed, 44 insertions, 25 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 33cc6558f9d2..5a9915101362 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -878,6 +878,7 @@ static void loop_config_discard(struct loop_device *lo) struct file *file = lo->lo_backing_file; struct inode *inode = file->f_mapping->host; struct request_queue *q = lo->lo_queue; + u32 granularity, max_discard_sectors; /* * If the backing device is a block device, mirror its zeroing @@ -890,11 +891,10 @@ static void loop_config_discard(struct loop_device *lo) struct request_queue *backingq; backingq = bdev_get_queue(inode->i_bdev); - blk_queue_max_discard_sectors(q, - backingq->limits.max_write_zeroes_sectors); - blk_queue_max_write_zeroes_sectors(q, - backingq->limits.max_write_zeroes_sectors); + max_discard_sectors = backingq->limits.max_write_zeroes_sectors; + granularity = backingq->limits.discard_granularity ?: + queue_physical_block_size(backingq); /* * We use punch hole to reclaim the free space used by the @@ -903,23 +903,26 @@ static void loop_config_discard(struct loop_device *lo) * useful information. */ } else if (!file->f_op->fallocate || lo->lo_encrypt_key_size) { - q->limits.discard_granularity = 0; - q->limits.discard_alignment = 0; - blk_queue_max_discard_sectors(q, 0); - blk_queue_max_write_zeroes_sectors(q, 0); + max_discard_sectors = 0; + granularity = 0; } else { - q->limits.discard_granularity = inode->i_sb->s_blocksize; - q->limits.discard_alignment = 0; - - blk_queue_max_discard_sectors(q, UINT_MAX >> 9); - blk_queue_max_write_zeroes_sectors(q, UINT_MAX >> 9); + max_discard_sectors = UINT_MAX >> 9; + granularity = inode->i_sb->s_blocksize; } - if (q->limits.max_write_zeroes_sectors) + if (max_discard_sectors) { + q->limits.discard_granularity = granularity; + blk_queue_max_discard_sectors(q, max_discard_sectors); + blk_queue_max_write_zeroes_sectors(q, max_discard_sectors); blk_queue_flag_set(QUEUE_FLAG_DISCARD, q); - else + } else { + q->limits.discard_granularity = 0; + blk_queue_max_discard_sectors(q, 0); + blk_queue_max_write_zeroes_sectors(q, 0); blk_queue_flag_clear(QUEUE_FLAG_DISCARD, q); + } + q->limits.discard_alignment = 0; } static void loop_unprepare_queue(struct loop_device *lo) diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c index 47a9dad880af..d74443a9c8fa 100644 --- a/drivers/block/null_blk_main.c +++ b/drivers/block/null_blk_main.c @@ -1147,7 +1147,7 @@ static int null_handle_rq(struct nullb_cmd *cmd) len = bvec.bv_len; err = null_transfer(nullb, bvec.bv_page, len, bvec.bv_offset, op_is_write(req_op(rq)), sector, - req_op(rq) & REQ_FUA); + rq->cmd_flags & REQ_FUA); if (err) { spin_unlock_irq(&nullb->lock); return err; diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c index 0fb94843a495..e1bc8b4cd592 100644 --- a/drivers/block/rnbd/rnbd-srv.c +++ b/drivers/block/rnbd/rnbd-srv.c @@ -148,7 +148,8 @@ static int process_rdma(struct rtrs_srv *sess, /* Generate bio with pages pointing to the rdma buffer */ bio = rnbd_bio_map_kern(data, sess_dev->rnbd_dev->ibd_bio_set, datalen, GFP_KERNEL); if (IS_ERR(bio)) { - rnbd_srv_err(sess_dev, "Failed to generate bio, err: %ld\n", PTR_ERR(bio)); + err = PTR_ERR(bio); + rnbd_srv_err(sess_dev, "Failed to generate bio, err: %d\n", err); goto sess_dev_put; } diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 63b213e00b37..b2e48dac1ebd 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -126,16 +126,31 @@ static int virtblk_setup_discard_write_zeroes(struct request *req, bool unmap) if (!range) return -ENOMEM; - __rq_for_each_bio(bio, req) { - u64 sector = bio->bi_iter.bi_sector; - u32 num_sectors = bio->bi_iter.bi_size >> SECTOR_SHIFT; - - range[n].flags = cpu_to_le32(flags); - range[n].num_sectors = cpu_to_le32(num_sectors); - range[n].sector = cpu_to_le64(sector); - n++; + /* + * Single max discard segment means multi-range discard isn't + * supported, and block layer only runs contiguity merge like + * normal RW request. So we can't reply on bio for retrieving + * each range info. + */ + if (queue_max_discard_segments(req->q) == 1) { + range[0].flags = cpu_to_le32(flags); + range[0].num_sectors = cpu_to_le32(blk_rq_sectors(req)); + range[0].sector = cpu_to_le64(blk_rq_pos(req)); + n = 1; + } else { + __rq_for_each_bio(bio, req) { + u64 sector = bio->bi_iter.bi_sector; + u32 num_sectors = bio->bi_iter.bi_size >> SECTOR_SHIFT; + + range[n].flags = cpu_to_le32(flags); + range[n].num_sectors = cpu_to_le32(num_sectors); + range[n].sector = cpu_to_le64(sector); + n++; + } } + WARN_ON_ONCE(n != segments); + req->special_vec.bv_page = virt_to_page(range); req->special_vec.bv_offset = offset_in_page(range); req->special_vec.bv_len = sizeof(*range) * segments; |