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Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/loop.c23
-rw-r--r--drivers/block/nbd.c51
-rw-r--r--drivers/block/null_blk/main.c5
-rw-r--r--drivers/block/null_blk/zoned.c13
4 files changed, 60 insertions, 32 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 93780f41646b..1153721bc7c2 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -302,6 +302,21 @@ static int lo_read_simple(struct loop_device *lo, struct request *rq,
return 0;
}
+static void loop_clear_limits(struct loop_device *lo, int mode)
+{
+ struct queue_limits lim = queue_limits_start_update(lo->lo_queue);
+
+ if (mode & FALLOC_FL_ZERO_RANGE)
+ lim.max_write_zeroes_sectors = 0;
+
+ if (mode & FALLOC_FL_PUNCH_HOLE) {
+ lim.max_hw_discard_sectors = 0;
+ lim.discard_granularity = 0;
+ }
+
+ queue_limits_commit_update(lo->lo_queue, &lim);
+}
+
static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
int mode)
{
@@ -320,6 +335,14 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
ret = file->f_op->fallocate(file, mode, pos, blk_rq_bytes(rq));
if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
return -EIO;
+
+ /*
+ * We initially configure the limits in a hope that fallocate is
+ * supported and clear them here if that turns out not to be true.
+ */
+ if (unlikely(ret == -EOPNOTSUPP))
+ loop_clear_limits(lo, mode);
+
return ret;
}
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 22a79a62cc4e..b87aa80a46dd 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -589,10 +589,11 @@ static inline int was_interrupted(int result)
}
/*
- * Returns BLK_STS_RESOURCE if the caller should retry after a delay. Returns
- * -EAGAIN if the caller should requeue @cmd. Returns -EIO if sending failed.
+ * Returns BLK_STS_RESOURCE if the caller should retry after a delay.
+ * Returns BLK_STS_IOERR if sending failed.
*/
-static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
+static blk_status_t nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd,
+ int index)
{
struct request *req = blk_mq_rq_from_pdu(cmd);
struct nbd_config *config = nbd->config;
@@ -614,13 +615,13 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
type = req_to_nbd_cmd_type(req);
if (type == U32_MAX)
- return -EIO;
+ return BLK_STS_IOERR;
if (rq_data_dir(req) == WRITE &&
(config->flags & NBD_FLAG_READ_ONLY)) {
dev_err_ratelimited(disk_to_dev(nbd->disk),
"Write on read-only\n");
- return -EIO;
+ return BLK_STS_IOERR;
}
if (req->cmd_flags & REQ_FUA)
@@ -674,11 +675,11 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
nsock->sent = sent;
}
set_bit(NBD_CMD_REQUEUED, &cmd->flags);
- return (__force int)BLK_STS_RESOURCE;
+ return BLK_STS_RESOURCE;
}
dev_err_ratelimited(disk_to_dev(nbd->disk),
"Send control failed (result %d)\n", result);
- return -EAGAIN;
+ goto requeue;
}
send_pages:
if (type != NBD_CMD_WRITE)
@@ -715,12 +716,12 @@ send_pages:
nsock->pending = req;
nsock->sent = sent;
set_bit(NBD_CMD_REQUEUED, &cmd->flags);
- return (__force int)BLK_STS_RESOURCE;
+ return BLK_STS_RESOURCE;
}
dev_err(disk_to_dev(nbd->disk),
"Send data failed (result %d)\n",
result);
- return -EAGAIN;
+ goto requeue;
}
/*
* The completion might already have come in,
@@ -737,7 +738,16 @@ out:
trace_nbd_payload_sent(req, handle);
nsock->pending = NULL;
nsock->sent = 0;
- return 0;
+ __set_bit(NBD_CMD_INFLIGHT, &cmd->flags);
+ return BLK_STS_OK;
+
+requeue:
+ /* retry on a different socket */
+ dev_err_ratelimited(disk_to_dev(nbd->disk),
+ "Request send failed, requeueing\n");
+ nbd_mark_nsock_dead(nbd, nsock, 1);
+ nbd_requeue_cmd(cmd);
+ return BLK_STS_OK;
}
static int nbd_read_reply(struct nbd_device *nbd, struct socket *sock,
@@ -1018,7 +1028,7 @@ static blk_status_t nbd_handle_cmd(struct nbd_cmd *cmd, int index)
struct nbd_device *nbd = cmd->nbd;
struct nbd_config *config;
struct nbd_sock *nsock;
- int ret;
+ blk_status_t ret;
lockdep_assert_held(&cmd->lock);
@@ -1072,28 +1082,11 @@ again:
ret = BLK_STS_OK;
goto out;
}
- /*
- * Some failures are related to the link going down, so anything that
- * returns EAGAIN can be retried on a different socket.
- */
ret = nbd_send_cmd(nbd, cmd, index);
- /*
- * Access to this flag is protected by cmd->lock, thus it's safe to set
- * the flag after nbd_send_cmd() succeed to send request to server.
- */
- if (!ret)
- __set_bit(NBD_CMD_INFLIGHT, &cmd->flags);
- else if (ret == -EAGAIN) {
- dev_err_ratelimited(disk_to_dev(nbd->disk),
- "Request send failed, requeueing\n");
- nbd_mark_nsock_dead(nbd, nsock, 1);
- nbd_requeue_cmd(cmd);
- ret = BLK_STS_OK;
- }
out:
mutex_unlock(&nsock->tx_lock);
nbd_config_put(nbd);
- return ret < 0 ? BLK_STS_IOERR : (__force blk_status_t)ret;
+ return ret;
}
static blk_status_t nbd_queue_rq(struct blk_mq_hw_ctx *hctx,
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index eb023d267369..75f189e42f88 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -494,6 +494,7 @@ static ssize_t nullb_device_power_store(struct config_item *item,
set_bit(NULLB_DEV_FL_CONFIGURED, &dev->flags);
dev->power = newp;
+ ret = count;
} else if (dev->power && !newp) {
if (test_and_clear_bit(NULLB_DEV_FL_UP, &dev->flags)) {
dev->power = newp;
@@ -1823,8 +1824,8 @@ static int null_validate_conf(struct nullb_device *dev)
dev->queue_mode = NULL_Q_MQ;
}
- dev->blocksize = round_down(dev->blocksize, 512);
- dev->blocksize = clamp_t(unsigned int, dev->blocksize, 512, 4096);
+ if (blk_validate_block_size(dev->blocksize))
+ return -EINVAL;
if (dev->use_per_node_hctx) {
if (dev->submit_queues != nr_online_nodes)
diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c
index 5b5a63adacc1..f118d304f310 100644
--- a/drivers/block/null_blk/zoned.c
+++ b/drivers/block/null_blk/zoned.c
@@ -74,6 +74,17 @@ int null_init_zoned_dev(struct nullb_device *dev,
return -EINVAL;
}
+ /*
+ * If a smaller zone capacity was requested, do not allow a smaller last
+ * zone at the same time as such zone configuration does not correspond
+ * to any real zoned device.
+ */
+ if (dev->zone_capacity != dev->zone_size &&
+ dev->size & (dev->zone_size - 1)) {
+ pr_err("A smaller last zone is not allowed with zone capacity smaller than zone size.\n");
+ return -EINVAL;
+ }
+
zone_capacity_sects = mb_to_sects(dev->zone_capacity);
dev_capacity_sects = mb_to_sects(dev->size);
dev->zone_size_sects = mb_to_sects(dev->zone_size);
@@ -108,7 +119,7 @@ int null_init_zoned_dev(struct nullb_device *dev,
if (dev->zone_max_active && dev->zone_max_open > dev->zone_max_active) {
dev->zone_max_open = dev->zone_max_active;
pr_info("changed the maximum number of open zones to %u\n",
- dev->nr_zones);
+ dev->zone_max_open);
} else if (dev->zone_max_open >= dev->nr_zones - dev->zone_nr_conv) {
dev->zone_max_open = 0;
pr_info("zone_max_open limit disabled, limit >= zone count\n");
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-16 16:45:43 +0300