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-rw-r--r--.mailmap5
-rw-r--r--Documentation/admin-guide/blockdev/nbd.rst2
-rw-r--r--block/bdev.c13
-rw-r--r--block/blk-cgroup.c3
-rw-r--r--block/blk-integrity.c175
-rw-r--r--block/blk.h12
-rw-r--r--block/genhd.c19
-rw-r--r--block/partitions/core.c8
-rw-r--r--drivers/block/brd.c1
-rw-r--r--drivers/block/drbd/drbd_receiver.c2
-rw-r--r--drivers/block/nbd.c7
-rw-r--r--drivers/block/null_blk/main.c1
-rw-r--r--drivers/block/ublk_drv.c31
-rw-r--r--drivers/block/zram/zram_drv.c1
-rw-r--r--drivers/md/bcache/super.c1
-rw-r--r--drivers/md/md-bitmap.c6
-rw-r--r--drivers/md/raid5.c45
-rw-r--r--fs/fs-writeback.c2
-rw-r--r--include/linux/blkdev.h3
-rw-r--r--include/uapi/linux/nbd.h25
20 files changed, 192 insertions, 170 deletions
diff --git a/.mailmap b/.mailmap
index d3eb862f71ab..71127b2608d2 100644
--- a/.mailmap
+++ b/.mailmap
@@ -213,7 +213,10 @@ Jeff Garzik <jgarzik@pretzel.yyz.us>
Jeff Layton <jlayton@kernel.org> <jlayton@poochiereds.net>
Jeff Layton <jlayton@kernel.org> <jlayton@primarydata.com>
Jeff Layton <jlayton@kernel.org> <jlayton@redhat.com>
-Jens Axboe <axboe@suse.de>
+Jens Axboe <axboe@kernel.dk> <axboe@suse.de>
+Jens Axboe <axboe@kernel.dk> <jens.axboe@oracle.com>
+Jens Axboe <axboe@kernel.dk> <axboe@fb.com>
+Jens Axboe <axboe@kernel.dk> <axboe@meta.com>
Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Jernej Skrabec <jernej.skrabec@gmail.com> <jernej.skrabec@siol.net>
Jessica Zhang <quic_jesszhan@quicinc.com> <jesszhan@codeaurora.org>
diff --git a/Documentation/admin-guide/blockdev/nbd.rst b/Documentation/admin-guide/blockdev/nbd.rst
index d78dfe559dcf..faf2ac4b1509 100644
--- a/Documentation/admin-guide/blockdev/nbd.rst
+++ b/Documentation/admin-guide/blockdev/nbd.rst
@@ -14,7 +14,7 @@ to borrow disk space from another computer.
Unlike NFS, it is possible to put any filesystem on it, etc.
For more information, or to download the nbd-client and nbd-server
-tools, go to http://nbd.sf.net/.
+tools, go to https://github.com/NetworkBlockDevice/nbd.
The nbd kernel module need only be installed on the client
system, as the nbd-server is completely in userspace. In fact,
diff --git a/block/bdev.c b/block/bdev.c
index 850852fe4b78..21c63bfef323 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -418,8 +418,11 @@ struct block_device *bdev_alloc(struct gendisk *disk, u8 partno)
bdev->bd_partno = partno;
bdev->bd_inode = inode;
bdev->bd_queue = disk->queue;
+ if (partno)
+ bdev->bd_has_submit_bio = disk->part0->bd_has_submit_bio;
+ else
+ bdev->bd_has_submit_bio = false;
bdev->bd_stats = alloc_percpu(struct disk_stats);
- bdev->bd_has_submit_bio = false;
if (!bdev->bd_stats) {
iput(inode);
return NULL;
@@ -428,6 +431,14 @@ struct block_device *bdev_alloc(struct gendisk *disk, u8 partno)
return bdev;
}
+void bdev_set_nr_sectors(struct block_device *bdev, sector_t sectors)
+{
+ spin_lock(&bdev->bd_size_lock);
+ i_size_write(bdev->bd_inode, (loff_t)sectors << SECTOR_SHIFT);
+ bdev->bd_nr_sectors = sectors;
+ spin_unlock(&bdev->bd_size_lock);
+}
+
void bdev_add(struct block_device *bdev, dev_t dev)
{
bdev->bd_dev = dev;
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index ff45649361e7..0ce64dd73cfe 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -567,6 +567,9 @@ restart:
list_for_each_entry_safe(blkg, n, &q->blkg_list, q_node) {
struct blkcg *blkcg = blkg->blkcg;
+ if (hlist_unhashed(&blkg->blkcg_node))
+ continue;
+
spin_lock(&blkcg->lock);
blkg_destroy(blkg);
spin_unlock(&blkcg->lock);
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 8f01d786f5cb..d4e9b4556d14 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -212,61 +212,44 @@ bool blk_integrity_merge_bio(struct request_queue *q, struct request *req,
return true;
}
-struct integrity_sysfs_entry {
- struct attribute attr;
- ssize_t (*show)(struct blk_integrity *, char *);
- ssize_t (*store)(struct blk_integrity *, const char *, size_t);
-};
-
-static ssize_t integrity_attr_show(struct kobject *kobj, struct attribute *attr,
- char *page)
+static inline struct blk_integrity *dev_to_bi(struct device *dev)
{
- struct gendisk *disk = container_of(kobj, struct gendisk, integrity_kobj);
- struct blk_integrity *bi = &disk->queue->integrity;
- struct integrity_sysfs_entry *entry =
- container_of(attr, struct integrity_sysfs_entry, attr);
-
- return entry->show(bi, page);
+ return &dev_to_disk(dev)->queue->integrity;
}
-static ssize_t integrity_attr_store(struct kobject *kobj,
- struct attribute *attr, const char *page,
- size_t count)
+static ssize_t format_show(struct device *dev, struct device_attribute *attr,
+ char *page)
{
- struct gendisk *disk = container_of(kobj, struct gendisk, integrity_kobj);
- struct blk_integrity *bi = &disk->queue->integrity;
- struct integrity_sysfs_entry *entry =
- container_of(attr, struct integrity_sysfs_entry, attr);
- ssize_t ret = 0;
+ struct blk_integrity *bi = dev_to_bi(dev);
- if (entry->store)
- ret = entry->store(bi, page, count);
-
- return ret;
-}
-
-static ssize_t integrity_format_show(struct blk_integrity *bi, char *page)
-{
if (bi->profile && bi->profile->name)
- return sprintf(page, "%s\n", bi->profile->name);
- else
- return sprintf(page, "none\n");
+ return sysfs_emit(page, "%s\n", bi->profile->name);
+ return sysfs_emit(page, "none\n");
}
-static ssize_t integrity_tag_size_show(struct blk_integrity *bi, char *page)
+static ssize_t tag_size_show(struct device *dev, struct device_attribute *attr,
+ char *page)
{
- return sprintf(page, "%u\n", bi->tag_size);
+ struct blk_integrity *bi = dev_to_bi(dev);
+
+ return sysfs_emit(page, "%u\n", bi->tag_size);
}
-static ssize_t integrity_interval_show(struct blk_integrity *bi, char *page)
+static ssize_t protection_interval_bytes_show(struct device *dev,
+ struct device_attribute *attr,
+ char *page)
{
- return sprintf(page, "%u\n",
- bi->interval_exp ? 1 << bi->interval_exp : 0);
+ struct blk_integrity *bi = dev_to_bi(dev);
+
+ return sysfs_emit(page, "%u\n",
+ bi->interval_exp ? 1 << bi->interval_exp : 0);
}
-static ssize_t integrity_verify_store(struct blk_integrity *bi,
- const char *page, size_t count)
+static ssize_t read_verify_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *page, size_t count)
{
+ struct blk_integrity *bi = dev_to_bi(dev);
char *p = (char *) page;
unsigned long val = simple_strtoul(p, &p, 10);
@@ -278,14 +261,20 @@ static ssize_t integrity_verify_store(struct blk_integrity *bi,
return count;
}
-static ssize_t integrity_verify_show(struct blk_integrity *bi, char *page)
+static ssize_t read_verify_show(struct device *dev,
+ struct device_attribute *attr, char *page)
{
- return sprintf(page, "%d\n", (bi->flags & BLK_INTEGRITY_VERIFY) != 0);
+ struct blk_integrity *bi = dev_to_bi(dev);
+
+ return sysfs_emit(page, "%d\n", !!(bi->flags & BLK_INTEGRITY_VERIFY));
}
-static ssize_t integrity_generate_store(struct blk_integrity *bi,
- const char *page, size_t count)
+static ssize_t write_generate_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *page, size_t count)
{
+ struct blk_integrity *bi = dev_to_bi(dev);
+
char *p = (char *) page;
unsigned long val = simple_strtoul(p, &p, 10);
@@ -297,68 +286,44 @@ static ssize_t integrity_generate_store(struct blk_integrity *bi,
return count;
}
-static ssize_t integrity_generate_show(struct blk_integrity *bi, char *page)
+static ssize_t write_generate_show(struct device *dev,
+ struct device_attribute *attr, char *page)
{
- return sprintf(page, "%d\n", (bi->flags & BLK_INTEGRITY_GENERATE) != 0);
-}
+ struct blk_integrity *bi = dev_to_bi(dev);
-static ssize_t integrity_device_show(struct blk_integrity *bi, char *page)
-{
- return sprintf(page, "%u\n",
- (bi->flags & BLK_INTEGRITY_DEVICE_CAPABLE) != 0);
+ return sysfs_emit(page, "%d\n", !!(bi->flags & BLK_INTEGRITY_GENERATE));
}
-static struct integrity_sysfs_entry integrity_format_entry = {
- .attr = { .name = "format", .mode = 0444 },
- .show = integrity_format_show,
-};
-
-static struct integrity_sysfs_entry integrity_tag_size_entry = {
- .attr = { .name = "tag_size", .mode = 0444 },
- .show = integrity_tag_size_show,
-};
-
-static struct integrity_sysfs_entry integrity_interval_entry = {
- .attr = { .name = "protection_interval_bytes", .mode = 0444 },
- .show = integrity_interval_show,
-};
-
-static struct integrity_sysfs_entry integrity_verify_entry = {
- .attr = { .name = "read_verify", .mode = 0644 },
- .show = integrity_verify_show,
- .store = integrity_verify_store,
-};
+static ssize_t device_is_integrity_capable_show(struct device *dev,
+ struct device_attribute *attr,
+ char *page)
+{
+ struct blk_integrity *bi = dev_to_bi(dev);
-static struct integrity_sysfs_entry integrity_generate_entry = {
- .attr = { .name = "write_generate", .mode = 0644 },
- .show = integrity_generate_show,
- .store = integrity_generate_store,
-};
+ return sysfs_emit(page, "%u\n",
+ !!(bi->flags & BLK_INTEGRITY_DEVICE_CAPABLE));
+}
-static struct integrity_sysfs_entry integrity_device_entry = {
- .attr = { .name = "device_is_integrity_capable", .mode = 0444 },
- .show = integrity_device_show,
-};
+static DEVICE_ATTR_RO(format);
+static DEVICE_ATTR_RO(tag_size);
+static DEVICE_ATTR_RO(protection_interval_bytes);
+static DEVICE_ATTR_RW(read_verify);
+static DEVICE_ATTR_RW(write_generate);
+static DEVICE_ATTR_RO(device_is_integrity_capable);
static struct attribute *integrity_attrs[] = {
- &integrity_format_entry.attr,
- &integrity_tag_size_entry.attr,
- &integrity_interval_entry.attr,
- &integrity_verify_entry.attr,
- &integrity_generate_entry.attr,
- &integrity_device_entry.attr,
- NULL,
+ &dev_attr_format.attr,
+ &dev_attr_tag_size.attr,
+ &dev_attr_protection_interval_bytes.attr,
+ &dev_attr_read_verify.attr,
+ &dev_attr_write_generate.attr,
+ &dev_attr_device_is_integrity_capable.attr,
+ NULL
};
-ATTRIBUTE_GROUPS(integrity);
-static const struct sysfs_ops integrity_ops = {
- .show = &integrity_attr_show,
- .store = &integrity_attr_store,
-};
-
-static const struct kobj_type integrity_ktype = {
- .default_groups = integrity_groups,
- .sysfs_ops = &integrity_ops,
+const struct attribute_group blk_integrity_attr_group = {
+ .name = "integrity",
+ .attrs = integrity_attrs,
};
static blk_status_t blk_integrity_nop_fn(struct blk_integrity_iter *iter)
@@ -437,21 +402,3 @@ void blk_integrity_unregister(struct gendisk *disk)
memset(bi, 0, sizeof(*bi));
}
EXPORT_SYMBOL(blk_integrity_unregister);
-
-int blk_integrity_add(struct gendisk *disk)
-{
- int ret;
-
- ret = kobject_init_and_add(&disk->integrity_kobj, &integrity_ktype,
- &disk_to_dev(disk)->kobj, "%s", "integrity");
- if (!ret)
- kobject_uevent(&disk->integrity_kobj, KOBJ_ADD);
- return ret;
-}
-
-void blk_integrity_del(struct gendisk *disk)
-{
- kobject_uevent(&disk->integrity_kobj, KOBJ_REMOVE);
- kobject_del(&disk->integrity_kobj);
- kobject_put(&disk->integrity_kobj);
-}
diff --git a/block/blk.h b/block/blk.h
index 2da831103471..45547bcf1119 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -214,8 +214,7 @@ static inline bool integrity_req_gap_front_merge(struct request *req,
bip_next->bip_vec[0].bv_offset);
}
-int blk_integrity_add(struct gendisk *disk);
-void blk_integrity_del(struct gendisk *);
+extern const struct attribute_group blk_integrity_attr_group;
#else /* CONFIG_BLK_DEV_INTEGRITY */
static inline bool blk_integrity_merge_rq(struct request_queue *rq,
struct request *r1, struct request *r2)
@@ -248,13 +247,6 @@ static inline bool bio_integrity_endio(struct bio *bio)
static inline void bio_integrity_free(struct bio *bio)
{
}
-static inline int blk_integrity_add(struct gendisk *disk)
-{
- return 0;
-}
-static inline void blk_integrity_del(struct gendisk *disk)
-{
-}
#endif /* CONFIG_BLK_DEV_INTEGRITY */
unsigned long blk_rq_timeout(unsigned long timeout);
@@ -419,6 +411,8 @@ int bdev_resize_partition(struct gendisk *disk, int partno, sector_t start,
sector_t length);
void blk_drop_partitions(struct gendisk *disk);
+void bdev_set_nr_sectors(struct block_device *bdev, sector_t sectors);
+
struct gendisk *__alloc_disk_node(struct request_queue *q, int node_id,
struct lock_class_key *lkclass);
diff --git a/block/genhd.c b/block/genhd.c
index 90c402771bb5..1cb489b927d5 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -57,12 +57,7 @@ static DEFINE_IDA(ext_devt_ida);
void set_capacity(struct gendisk *disk, sector_t sectors)
{
- struct block_device *bdev = disk->part0;
-
- spin_lock(&bdev->bd_size_lock);
- i_size_write(bdev->bd_inode, (loff_t)sectors << SECTOR_SHIFT);
- bdev->bd_nr_sectors = sectors;
- spin_unlock(&bdev->bd_size_lock);
+ bdev_set_nr_sectors(disk->part0, sectors);
}
EXPORT_SYMBOL(set_capacity);
@@ -487,15 +482,11 @@ int __must_check device_add_disk(struct device *parent, struct gendisk *disk,
*/
pm_runtime_set_memalloc_noio(ddev, true);
- ret = blk_integrity_add(disk);
- if (ret)
- goto out_del_block_link;
-
disk->part0->bd_holder_dir =
kobject_create_and_add("holders", &ddev->kobj);
if (!disk->part0->bd_holder_dir) {
ret = -ENOMEM;
- goto out_del_integrity;
+ goto out_del_block_link;
}
disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj);
if (!disk->slave_dir) {
@@ -558,8 +549,6 @@ out_put_slave_dir:
disk->slave_dir = NULL;
out_put_holder_dir:
kobject_put(disk->part0->bd_holder_dir);
-out_del_integrity:
- blk_integrity_del(disk);
out_del_block_link:
sysfs_remove_link(block_depr, dev_name(ddev));
out_device_del:
@@ -621,7 +610,6 @@ void del_gendisk(struct gendisk *disk)
if (WARN_ON_ONCE(!disk_live(disk) && !(disk->flags & GENHD_FL_HIDDEN)))
return;
- blk_integrity_del(disk);
disk_del_events(disk);
mutex_lock(&disk->open_mutex);
@@ -1156,6 +1144,9 @@ static const struct attribute_group *disk_attr_groups[] = {
#ifdef CONFIG_BLK_DEV_IO_TRACE
&blk_trace_attr_group,
#endif
+#ifdef CONFIG_BLK_DEV_INTEGRITY
+ &blk_integrity_attr_group,
+#endif
NULL
};
diff --git a/block/partitions/core.c b/block/partitions/core.c
index 7b8ef6296abd..49e0496ff23c 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -85,14 +85,6 @@ static int (*check_part[])(struct parsed_partitions *) = {
NULL
};
-static void bdev_set_nr_sectors(struct block_device *bdev, sector_t sectors)
-{
- spin_lock(&bdev->bd_size_lock);
- i_size_write(bdev->bd_inode, (loff_t)sectors << SECTOR_SHIFT);
- bdev->bd_nr_sectors = sectors;
- spin_unlock(&bdev->bd_size_lock);
-}
-
static struct parsed_partitions *allocate_partitions(struct gendisk *hd)
{
struct parsed_partitions *state;
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 34177f1bd97d..bcad9b926b0c 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -404,7 +404,6 @@ static int brd_alloc(int i)
/* Tell the block layer that this is not a rotational device */
blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue);
blk_queue_flag_set(QUEUE_FLAG_SYNCHRONOUS, disk->queue);
- blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue);
blk_queue_flag_set(QUEUE_FLAG_NOWAIT, disk->queue);
err = add_disk(disk);
if (err)
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 719a7260c22b..8c2bc47de473 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1283,7 +1283,7 @@ static void one_flush_endio(struct bio *bio)
static void submit_one_flush(struct drbd_device *device, struct issue_flush_context *ctx)
{
struct bio *bio = bio_alloc(device->ldev->backing_bdev, 0,
- REQ_OP_FLUSH | REQ_PREFLUSH, GFP_NOIO);
+ REQ_OP_WRITE | REQ_PREFLUSH, GFP_NOIO);
struct one_flush_context *octx = kmalloc(sizeof(*octx), GFP_NOIO);
if (!octx) {
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index d445fd0934bd..9c35c958f2c8 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -609,7 +609,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
request.len = htonl(size);
}
handle = nbd_cmd_handle(cmd);
- memcpy(request.handle, &handle, sizeof(handle));
+ request.cookie = cpu_to_be64(handle);
trace_nbd_send_request(&request, nbd->index, blk_mq_rq_from_pdu(cmd));
@@ -621,7 +621,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
trace_nbd_header_sent(req, handle);
if (result < 0) {
if (was_interrupted(result)) {
- /* If we havne't sent anything we can just return BUSY,
+ /* If we haven't sent anything we can just return BUSY,
* however if we have sent something we need to make
* sure we only allow this req to be sent until we are
* completely done.
@@ -735,7 +735,7 @@ static struct nbd_cmd *nbd_handle_reply(struct nbd_device *nbd, int index,
u32 tag;
int ret = 0;
- memcpy(&handle, reply->handle, sizeof(handle));
+ handle = be64_to_cpu(reply->cookie);
tag = nbd_handle_to_tag(handle);
hwq = blk_mq_unique_tag_to_hwq(tag);
if (hwq < nbd->tag_set.nr_hw_queues)
@@ -1805,7 +1805,6 @@ static struct nbd_device *nbd_dev_add(int index, unsigned int refs)
* Tell the block layer that we are not a rotational device
*/
blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue);
- blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue);
disk->queue->limits.discard_granularity = 0;
blk_queue_max_discard_sectors(disk->queue, 0);
blk_queue_max_segment_size(disk->queue, UINT_MAX);
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index b195b8b9fe32..b3fedafe301e 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -2144,7 +2144,6 @@ static int null_add_dev(struct nullb_device *dev)
nullb->q->queuedata = nullb;
blk_queue_flag_set(QUEUE_FLAG_NONROT, nullb->q);
- blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, nullb->q);
mutex_lock(&lock);
rv = ida_simple_get(&nullb_indexes, 0, 0, GFP_KERNEL);
diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index 6b8aa0d030f7..72a5cde9a5af 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -129,6 +129,7 @@ struct ublk_queue {
unsigned long io_addr; /* mapped vm address */
unsigned int max_io_sz;
bool force_abort;
+ bool timeout;
unsigned short nr_io_ready; /* how many ios setup */
struct ublk_device *dev;
struct ublk_io ios[];
@@ -898,6 +899,22 @@ static void ublk_queue_cmd(struct ublk_queue *ubq, struct request *rq)
}
}
+static enum blk_eh_timer_return ublk_timeout(struct request *rq)
+{
+ struct ublk_queue *ubq = rq->mq_hctx->driver_data;
+
+ if (ubq->flags & UBLK_F_UNPRIVILEGED_DEV) {
+ if (!ubq->timeout) {
+ send_sig(SIGKILL, ubq->ubq_daemon, 0);
+ ubq->timeout = true;
+ }
+
+ return BLK_EH_DONE;
+ }
+
+ return BLK_EH_RESET_TIMER;
+}
+
static blk_status_t ublk_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
@@ -957,6 +974,7 @@ static const struct blk_mq_ops ublk_mq_ops = {
.queue_rq = ublk_queue_rq,
.init_hctx = ublk_init_hctx,
.init_request = ublk_init_rq,
+ .timeout = ublk_timeout,
};
static int ublk_ch_open(struct inode *inode, struct file *filp)
@@ -1737,6 +1755,18 @@ static int ublk_ctrl_add_dev(struct io_uring_cmd *cmd)
else if (!(info.flags & UBLK_F_UNPRIVILEGED_DEV))
return -EPERM;
+ /*
+ * unprivileged device can't be trusted, but RECOVERY and
+ * RECOVERY_REISSUE still may hang error handling, so can't
+ * support recovery features for unprivileged ublk now
+ *
+ * TODO: provide forward progress for RECOVERY handler, so that
+ * unprivileged device can benefit from it
+ */
+ if (info.flags & UBLK_F_UNPRIVILEGED_DEV)
+ info.flags &= ~(UBLK_F_USER_RECOVERY_REISSUE |
+ UBLK_F_USER_RECOVERY);
+
/* the created device is always owned by current user */
ublk_store_owner_uid_gid(&info.owner_uid, &info.owner_gid);
@@ -2007,6 +2037,7 @@ static void ublk_queue_reinit(struct ublk_device *ub, struct ublk_queue *ubq)
put_task_struct(ubq->ubq_daemon);
/* We have to reset it to NULL, otherwise ub won't accept new FETCH_REQ */
ubq->ubq_daemon = NULL;
+ ubq->timeout = false;
for (i = 0; i < ubq->q_depth; i++) {
struct ublk_io *io = &ubq->ios[i];
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index a84c4268257a..f6d90f1ba5cf 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -2215,7 +2215,6 @@ static int zram_add(void)
/* zram devices sort of resembles non-rotational disks */
blk_queue_flag_set(QUEUE_FLAG_NONROT, zram->disk->queue);
blk_queue_flag_set(QUEUE_FLAG_SYNCHRONOUS, zram->disk->queue);
- blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, zram->disk->queue);
/*
* To ensure that we always get PAGE_SIZE aligned
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index ba3909bb6bea..7e9d19fd21dd 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -971,7 +971,6 @@ static int bcache_device_init(struct bcache_device *d, unsigned int block_size,
}
blk_queue_flag_set(QUEUE_FLAG_NONROT, d->disk->queue);
- blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, d->disk->queue);
blk_queue_write_cache(q, true, true);
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index 920bb68156d2..bc8d7565171d 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -219,7 +219,7 @@ static unsigned int optimal_io_size(struct block_device *bdev,
}
static unsigned int bitmap_io_size(unsigned int io_size, unsigned int opt_size,
- sector_t start, sector_t boundary)
+ loff_t start, loff_t boundary)
{
if (io_size != opt_size &&
start + opt_size / SECTOR_SIZE <= boundary)
@@ -237,8 +237,8 @@ static int __write_sb_page(struct md_rdev *rdev, struct bitmap *bitmap,
struct block_device *bdev;
struct mddev *mddev = bitmap->mddev;
struct bitmap_storage *store = &bitmap->storage;
- sector_t offset = mddev->bitmap_info.offset;
- sector_t ps, sboff, doff;
+ loff_t sboff, offset = mddev->bitmap_info.offset;
+ sector_t ps, doff;
unsigned int size = PAGE_SIZE;
unsigned int opt_size = PAGE_SIZE;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 812a12e3e41a..4739ed891e75 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -6079,6 +6079,38 @@ out_release:
return ret;
}
+/*
+ * If the bio covers multiple data disks, find sector within the bio that has
+ * the lowest chunk offset in the first chunk.
+ */
+static sector_t raid5_bio_lowest_chunk_sector(struct r5conf *conf,
+ struct bio *bi)
+{
+ int sectors_per_chunk = conf->chunk_sectors;
+ int raid_disks = conf->raid_disks;
+ int dd_idx;
+ struct stripe_head sh;
+ unsigned int chunk_offset;
+ sector_t r_sector = bi->bi_iter.bi_sector & ~((sector_t)RAID5_STRIPE_SECTORS(conf)-1);
+ sector_t sector;
+
+ /* We pass in fake stripe_head to get back parity disk numbers */
+ sector = raid5_compute_sector(conf, r_sector, 0, &dd_idx, &sh);
+ chunk_offset = sector_div(sector, sectors_per_chunk);
+ if (sectors_per_chunk - chunk_offset >= bio_sectors(bi))
+ return r_sector;
+ /*
+ * Bio crosses to the next data disk. Check whether it's in the same
+ * chunk.
+ */
+ dd_idx++;
+ while (dd_idx == sh.pd_idx || dd_idx == sh.qd_idx)
+ dd_idx++;
+ if (dd_idx >= raid_disks)
+ return r_sector;
+ return r_sector + sectors_per_chunk - chunk_offset;
+}
+
static bool raid5_make_request(struct mddev *mddev, struct bio * bi)
{
DEFINE_WAIT_FUNC(wait, woken_wake_function);
@@ -6150,6 +6182,17 @@ static bool raid5_make_request(struct mddev *mddev, struct bio * bi)
}
md_account_bio(mddev, &bi);
+ /*
+ * Lets start with the stripe with the lowest chunk offset in the first
+ * chunk. That has the best chances of creating IOs adjacent to
+ * previous IOs in case of sequential IO and thus creates the most
+ * sequential IO pattern. We don't bother with the optimization when
+ * reshaping as the performance benefit is not worth the complexity.
+ */
+ if (likely(conf->reshape_progress == MaxSector))
+ logical_sector = raid5_bio_lowest_chunk_sector(conf, bi);
+ s = (logical_sector - ctx.first_sector) >> RAID5_STRIPE_SHIFT(conf);
+
add_wait_queue(&conf->wait_for_overlap, &wait);
while (1) {
res = make_stripe_request(mddev, conf, &ctx, logical_sector,
@@ -6178,7 +6221,7 @@ static bool raid5_make_request(struct mddev *mddev, struct bio * bi)
continue;
}
- s = find_first_bit(ctx.sectors_to_do, stripe_cnt);
+ s = find_next_bit_wrap(ctx.sectors_to_do, stripe_cnt, s);
if (s == stripe_cnt)
break;
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 1db3e3c24b43..ae4e51e91ee3 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -829,7 +829,7 @@ void wbc_detach_inode(struct writeback_control *wbc)
* is okay. The main goal is avoiding keeping an inode on
* the wrong wb for an extended period of time.
*/
- if (hweight32(history) > WB_FRN_HIST_THR_SLOTS)
+ if (hweight16(history) > WB_FRN_HIST_THR_SLOTS)
inode_switch_wbs(inode, max_id);
}
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index e3242e67a8e3..b441e633f4dd 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -157,9 +157,6 @@ struct gendisk {
struct timer_rand_state *random;
atomic_t sync_io; /* RAID */
struct disk_events *ev;
-#ifdef CONFIG_BLK_DEV_INTEGRITY
- struct kobject integrity_kobj;
-#endif /* CONFIG_BLK_DEV_INTEGRITY */
#ifdef CONFIG_BLK_DEV_ZONED
/*
diff --git a/include/uapi/linux/nbd.h b/include/uapi/linux/nbd.h
index 20d6cc91435d..80ce0ef43afd 100644
--- a/include/uapi/linux/nbd.h
+++ b/include/uapi/linux/nbd.h
@@ -11,6 +11,8 @@
* Cleanup PARANOIA usage & code.
* 2004/02/19 Paul Clements
* Removed PARANOIA, plus various cleanup and comments
+ * 2023 Copyright Red Hat
+ * Link to userspace extensions, favor cookie over handle.
*/
#ifndef _UAPILINUX_NBD_H
@@ -30,12 +32,18 @@
#define NBD_SET_TIMEOUT _IO( 0xab, 9 )
#define NBD_SET_FLAGS _IO( 0xab, 10)
+/*
+ * See also https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md
+ * for additional userspace extensions not yet utilized in the kernel module.
+ */
+
enum {
NBD_CMD_READ = 0,
NBD_CMD_WRITE = 1,
NBD_CMD_DISC = 2,
NBD_CMD_FLUSH = 3,
NBD_CMD_TRIM = 4
+ /* userspace defines additional extension commands */
};
/* values for flags field, these are server interaction specific. */
@@ -64,15 +72,19 @@ enum {
#define NBD_REQUEST_MAGIC 0x25609513
#define NBD_REPLY_MAGIC 0x67446698
/* Do *not* use magics: 0x12560953 0x96744668. */
+/* magic 0x668e33ef for structured reply not supported by kernel yet */
/*
* This is the packet used for communication between client and
* server. All data are in network byte order.
*/
struct nbd_request {
- __be32 magic;
- __be32 type; /* == READ || == WRITE */
- char handle[8];
+ __be32 magic; /* NBD_REQUEST_MAGIC */
+ __be32 type; /* See NBD_CMD_* */
+ union {
+ __be64 cookie; /* Opaque identifier for request */
+ char handle[8]; /* older spelling of cookie */
+ };
__be64 from;
__be32 len;
} __attribute__((packed));
@@ -82,8 +94,11 @@ struct nbd_request {
* it has completed an I/O request (or an error occurs).
*/
struct nbd_reply {
- __be32 magic;
+ __be32 magic; /* NBD_REPLY_MAGIC */
__be32 error; /* 0 = ok, else error */
- char handle[8]; /* handle you got from request */
+ union {
+ __be64 cookie; /* Opaque identifier from request */
+ char handle[8]; /* older spelling of cookie */
+ };
};
#endif /* _UAPILINUX_NBD_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 18:56:31 +0000