summaryrefslogtreecommitdiff
path: root/drivers/block
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/aoe/aoeblk.c5
-rw-r--r--drivers/block/loop.c52
-rw-r--r--drivers/block/nbd.c6
-rw-r--r--drivers/block/null_blk/main.c4
-rw-r--r--drivers/block/rbd.c32
-rw-r--r--drivers/block/virtio_blk.c2
6 files changed, 51 insertions, 50 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index d2dbf8aaccb5..b1b47d88f5db 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -333,6 +333,7 @@ aoeblk_gdalloc(void *vp)
struct gendisk *gd;
mempool_t *mp;
struct blk_mq_tag_set *set;
+ sector_t ssize;
ulong flags;
int late = 0;
int err;
@@ -396,7 +397,7 @@ aoeblk_gdalloc(void *vp)
gd->minors = AOE_PARTITIONS;
gd->fops = &aoe_bdops;
gd->private_data = d;
- set_capacity(gd, d->ssize);
+ ssize = d->ssize;
snprintf(gd->disk_name, sizeof gd->disk_name, "etherd/e%ld.%d",
d->aoemajor, d->aoeminor);
@@ -405,6 +406,8 @@ aoeblk_gdalloc(void *vp)
spin_unlock_irqrestore(&d->lock, flags);
+ set_capacity(gd, ssize);
+
err = device_add_disk(NULL, gd, aoe_attr_groups);
if (err)
goto out_disk_cleanup;
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 146b32fa7b47..f8145499da38 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -165,39 +165,37 @@ static loff_t get_loop_size(struct loop_device *lo, struct file *file)
return get_size(lo->lo_offset, lo->lo_sizelimit, file);
}
+/*
+ * We support direct I/O only if lo_offset is aligned with the logical I/O size
+ * of backing device, and the logical block size of loop is bigger than that of
+ * the backing device.
+ */
+static bool lo_bdev_can_use_dio(struct loop_device *lo,
+ struct block_device *backing_bdev)
+{
+ unsigned short sb_bsize = bdev_logical_block_size(backing_bdev);
+
+ if (queue_logical_block_size(lo->lo_queue) < sb_bsize)
+ return false;
+ if (lo->lo_offset & (sb_bsize - 1))
+ return false;
+ return true;
+}
+
static void __loop_update_dio(struct loop_device *lo, bool dio)
{
struct file *file = lo->lo_backing_file;
- struct address_space *mapping = file->f_mapping;
- struct inode *inode = mapping->host;
- unsigned short sb_bsize = 0;
- unsigned dio_align = 0;
+ struct inode *inode = file->f_mapping->host;
+ struct block_device *backing_bdev = NULL;
bool use_dio;
- if (inode->i_sb->s_bdev) {
- sb_bsize = bdev_logical_block_size(inode->i_sb->s_bdev);
- dio_align = sb_bsize - 1;
- }
+ if (S_ISBLK(inode->i_mode))
+ backing_bdev = I_BDEV(inode);
+ else if (inode->i_sb->s_bdev)
+ backing_bdev = inode->i_sb->s_bdev;
- /*
- * We support direct I/O only if lo_offset is aligned with the
- * logical I/O size of backing device, and the logical block
- * size of loop is bigger than the backing device's.
- *
- * TODO: the above condition may be loosed in the future, and
- * direct I/O may be switched runtime at that time because most
- * of requests in sane applications should be PAGE_SIZE aligned
- */
- if (dio) {
- if (queue_logical_block_size(lo->lo_queue) >= sb_bsize &&
- !(lo->lo_offset & dio_align) &&
- (file->f_mode & FMODE_CAN_ODIRECT))
- use_dio = true;
- else
- use_dio = false;
- } else {
- use_dio = false;
- }
+ use_dio = dio && (file->f_mode & FMODE_CAN_ODIRECT) &&
+ (!backing_bdev || lo_bdev_can_use_dio(lo, backing_bdev));
if (lo->use_dio == use_dio)
return;
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 4e72ec4e25ac..33a8f37bb6a1 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -508,7 +508,7 @@ static int __sock_xmit(struct nbd_device *nbd, struct socket *sock, int send,
struct iov_iter *iter, int msg_flags, int *sent)
{
int result;
- struct msghdr msg;
+ struct msghdr msg = {} ;
unsigned int noreclaim_flag;
if (unlikely(!sock)) {
@@ -524,10 +524,6 @@ static int __sock_xmit(struct nbd_device *nbd, struct socket *sock, int send,
do {
sock->sk->sk_allocation = GFP_NOIO | __GFP_MEMALLOC;
sock->sk->sk_use_task_frag = false;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
msg.msg_flags = msg_flags | MSG_NOSIGNAL;
if (send)
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index 9f7695f00c2d..36755f263e8e 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -1840,7 +1840,7 @@ static void null_del_dev(struct nullb *nullb)
dev = nullb->dev;
- ida_simple_remove(&nullb_indexes, nullb->index);
+ ida_free(&nullb_indexes, nullb->index);
list_del_init(&nullb->list);
@@ -2174,7 +2174,7 @@ static int null_add_dev(struct nullb_device *dev)
blk_queue_flag_set(QUEUE_FLAG_NONROT, nullb->q);
mutex_lock(&lock);
- rv = ida_simple_get(&nullb_indexes, 0, 0, GFP_KERNEL);
+ rv = ida_alloc(&nullb_indexes, GFP_KERNEL);
if (rv < 0) {
mutex_unlock(&lock);
goto out_cleanup_zone;
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index a999b698b131..12b5d53ec856 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3452,14 +3452,15 @@ static bool rbd_lock_add_request(struct rbd_img_request *img_req)
static void rbd_lock_del_request(struct rbd_img_request *img_req)
{
struct rbd_device *rbd_dev = img_req->rbd_dev;
- bool need_wakeup;
+ bool need_wakeup = false;
lockdep_assert_held(&rbd_dev->lock_rwsem);
spin_lock(&rbd_dev->lock_lists_lock);
- rbd_assert(!list_empty(&img_req->lock_item));
- list_del_init(&img_req->lock_item);
- need_wakeup = (rbd_dev->lock_state == RBD_LOCK_STATE_RELEASING &&
- list_empty(&rbd_dev->running_list));
+ if (!list_empty(&img_req->lock_item)) {
+ list_del_init(&img_req->lock_item);
+ need_wakeup = (rbd_dev->lock_state == RBD_LOCK_STATE_RELEASING &&
+ list_empty(&rbd_dev->running_list));
+ }
spin_unlock(&rbd_dev->lock_lists_lock);
if (need_wakeup)
complete(&rbd_dev->releasing_wait);
@@ -3842,14 +3843,19 @@ static void wake_lock_waiters(struct rbd_device *rbd_dev, int result)
return;
}
- list_for_each_entry(img_req, &rbd_dev->acquiring_list, lock_item) {
+ while (!list_empty(&rbd_dev->acquiring_list)) {
+ img_req = list_first_entry(&rbd_dev->acquiring_list,
+ struct rbd_img_request, lock_item);
mutex_lock(&img_req->state_mutex);
rbd_assert(img_req->state == RBD_IMG_EXCLUSIVE_LOCK);
+ if (!result)
+ list_move_tail(&img_req->lock_item,
+ &rbd_dev->running_list);
+ else
+ list_del_init(&img_req->lock_item);
rbd_img_schedule(img_req, result);
mutex_unlock(&img_req->state_mutex);
}
-
- list_splice_tail_init(&rbd_dev->acquiring_list, &rbd_dev->running_list);
}
static bool locker_equal(const struct ceph_locker *lhs,
@@ -5326,7 +5332,7 @@ static void rbd_dev_release(struct device *dev)
if (need_put) {
destroy_workqueue(rbd_dev->task_wq);
- ida_simple_remove(&rbd_dev_id_ida, rbd_dev->dev_id);
+ ida_free(&rbd_dev_id_ida, rbd_dev->dev_id);
}
rbd_dev_free(rbd_dev);
@@ -5402,9 +5408,9 @@ static struct rbd_device *rbd_dev_create(struct rbd_client *rbdc,
return NULL;
/* get an id and fill in device name */
- rbd_dev->dev_id = ida_simple_get(&rbd_dev_id_ida, 0,
- minor_to_rbd_dev_id(1 << MINORBITS),
- GFP_KERNEL);
+ rbd_dev->dev_id = ida_alloc_max(&rbd_dev_id_ida,
+ minor_to_rbd_dev_id(1 << MINORBITS) - 1,
+ GFP_KERNEL);
if (rbd_dev->dev_id < 0)
goto fail_rbd_dev;
@@ -5425,7 +5431,7 @@ static struct rbd_device *rbd_dev_create(struct rbd_client *rbdc,
return rbd_dev;
fail_dev_id:
- ida_simple_remove(&rbd_dev_id_ida, rbd_dev->dev_id);
+ ida_free(&rbd_dev_id_ida, rbd_dev->dev_id);
fail_rbd_dev:
rbd_dev_free(rbd_dev);
return NULL;
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 3b6b9abb8ce1..5bf98fd6a651 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -367,8 +367,6 @@ static void virtblk_done(struct virtqueue *vq)
blk_mq_complete_request(req);
req_done = true;
}
- if (unlikely(virtqueue_is_broken(vq)))
- break;
} while (!virtqueue_enable_cb(vq));
/* In case queue is stopped waiting for more buffers. */
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-02 14:09:38 +0300