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-rw-r--r--drivers/block/DAC960.c2
-rw-r--r--drivers/block/drbd/drbd_main.c29
-rw-r--r--drivers/block/drbd/drbd_req.c2
-rw-r--r--drivers/block/drbd/drbd_req.h1
-rw-r--r--drivers/block/drbd/drbd_state.c7
-rw-r--r--drivers/block/loop.c26
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c24
-rw-r--r--drivers/block/nbd.c38
-rw-r--r--drivers/block/paride/Kconfig4
-rw-r--r--drivers/block/sunvdc.c2
-rw-r--r--drivers/block/swim.c1
-rw-r--r--drivers/block/virtio_blk.c7
-rw-r--r--drivers/block/xen-blkback/blkback.c18
-rw-r--r--drivers/block/xen-blkfront.c10
14 files changed, 109 insertions, 62 deletions
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 9a13e889837e..8f12dc78a848 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -6547,7 +6547,7 @@ static ssize_t dac960_user_command_proc_write(struct file *file,
const char __user *Buffer,
size_t Count, loff_t *pos)
{
- DAC960_Controller_T *Controller = (DAC960_Controller_T *) PDE(file->f_path.dentry->d_inode)->data;
+ DAC960_Controller_T *Controller = (DAC960_Controller_T *) PDE(file_inode(file))->data;
unsigned char CommandBuffer[80];
int Length;
if (Count > sizeof(CommandBuffer)-1) return -EINVAL;
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 8c13eeb83c53..e98da675f0c1 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2660,25 +2660,24 @@ enum drbd_ret_code conn_new_minor(struct drbd_tconn *tconn, unsigned int minor,
mdev->read_requests = RB_ROOT;
mdev->write_requests = RB_ROOT;
- if (!idr_pre_get(&minors, GFP_KERNEL))
- goto out_no_minor_idr;
- if (idr_get_new_above(&minors, mdev, minor, &minor_got))
+ minor_got = idr_alloc(&minors, mdev, minor, minor + 1, GFP_KERNEL);
+ if (minor_got < 0) {
+ if (minor_got == -ENOSPC) {
+ err = ERR_MINOR_EXISTS;
+ drbd_msg_put_info("requested minor exists already");
+ }
goto out_no_minor_idr;
- if (minor_got != minor) {
- err = ERR_MINOR_EXISTS;
- drbd_msg_put_info("requested minor exists already");
- goto out_idr_remove_minor;
}
- if (!idr_pre_get(&tconn->volumes, GFP_KERNEL))
- goto out_idr_remove_minor;
- if (idr_get_new_above(&tconn->volumes, mdev, vnr, &vnr_got))
+ vnr_got = idr_alloc(&tconn->volumes, mdev, vnr, vnr + 1, GFP_KERNEL);
+ if (vnr_got < 0) {
+ if (vnr_got == -ENOSPC) {
+ err = ERR_INVALID_REQUEST;
+ drbd_msg_put_info("requested volume exists already");
+ }
goto out_idr_remove_minor;
- if (vnr_got != vnr) {
- err = ERR_INVALID_REQUEST;
- drbd_msg_put_info("requested volume exists already");
- goto out_idr_remove_vol;
}
+
add_disk(disk);
kref_init(&mdev->kref); /* one ref for both idrs and the the add_disk */
@@ -2689,8 +2688,6 @@ enum drbd_ret_code conn_new_minor(struct drbd_tconn *tconn, unsigned int minor,
return NO_ERROR;
-out_idr_remove_vol:
- idr_remove(&tconn->volumes, vnr_got);
out_idr_remove_minor:
idr_remove(&minors, minor_got);
synchronize_rcu();
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index f58a4a4b4dfb..2b8303ad63c9 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -168,7 +168,7 @@ static void wake_all_senders(struct drbd_tconn *tconn) {
}
/* must hold resource->req_lock */
-static void start_new_tl_epoch(struct drbd_tconn *tconn)
+void start_new_tl_epoch(struct drbd_tconn *tconn)
{
/* no point closing an epoch, if it is empty, anyways. */
if (tconn->current_tle_writes == 0)
diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h
index 016de6b8bb57..c08d22964d06 100644
--- a/drivers/block/drbd/drbd_req.h
+++ b/drivers/block/drbd/drbd_req.h
@@ -267,6 +267,7 @@ struct bio_and_error {
int error;
};
+extern void start_new_tl_epoch(struct drbd_tconn *tconn);
extern void drbd_req_destroy(struct kref *kref);
extern void _req_may_be_done(struct drbd_request *req,
struct bio_and_error *m);
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index 53bf6182bac4..0fe220cfb9e9 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -931,6 +931,7 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns,
enum drbd_state_rv rv = SS_SUCCESS;
enum sanitize_state_warnings ssw;
struct after_state_chg_work *ascw;
+ bool did_remote, should_do_remote;
os = drbd_read_state(mdev);
@@ -981,11 +982,17 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns,
(os.disk != D_DISKLESS && ns.disk == D_DISKLESS))
atomic_inc(&mdev->local_cnt);
+ did_remote = drbd_should_do_remote(mdev->state);
mdev->state.i = ns.i;
+ should_do_remote = drbd_should_do_remote(mdev->state);
mdev->tconn->susp = ns.susp;
mdev->tconn->susp_nod = ns.susp_nod;
mdev->tconn->susp_fen = ns.susp_fen;
+ /* put replicated vs not-replicated requests in seperate epochs */
+ if (did_remote != should_do_remote)
+ start_new_tl_epoch(mdev->tconn);
+
if (os.disk == D_ATTACHING && ns.disk >= D_NEGOTIATING)
drbd_print_uuids(mdev, "attached to UUIDs");
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index ae1251270624..f47dccbda1d4 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1139,7 +1139,7 @@ loop_get_status(struct loop_device *lo, struct loop_info64 *info)
if (lo->lo_state != Lo_bound)
return -ENXIO;
- error = vfs_getattr(file->f_path.mnt, file->f_path.dentry, &stat);
+ error = vfs_getattr(&file->f_path, &stat);
if (error)
return error;
memset(info, 0, sizeof(*info));
@@ -1624,30 +1624,17 @@ static int loop_add(struct loop_device **l, int i)
if (!lo)
goto out;
- if (!idr_pre_get(&loop_index_idr, GFP_KERNEL))
- goto out_free_dev;
-
+ /* allocate id, if @id >= 0, we're requesting that specific id */
if (i >= 0) {
- int m;
-
- /* create specific i in the index */
- err = idr_get_new_above(&loop_index_idr, lo, i, &m);
- if (err >= 0 && i != m) {
- idr_remove(&loop_index_idr, m);
+ err = idr_alloc(&loop_index_idr, lo, i, i + 1, GFP_KERNEL);
+ if (err == -ENOSPC)
err = -EEXIST;
- }
- } else if (i == -1) {
- int m;
-
- /* get next free nr */
- err = idr_get_new(&loop_index_idr, lo, &m);
- if (err >= 0)
- i = m;
} else {
- err = -EINVAL;
+ err = idr_alloc(&loop_index_idr, lo, 0, 0, GFP_KERNEL);
}
if (err < 0)
goto out_free_dev;
+ i = err;
lo->lo_queue = blk_alloc_queue(GFP_KERNEL);
if (!lo->lo_queue)
@@ -1911,7 +1898,6 @@ static void __exit loop_exit(void)
range = max_loop ? max_loop << part_shift : 1UL << MINORBITS;
idr_for_each(&loop_index_idr, &loop_exit_cb, NULL);
- idr_remove_all(&loop_index_idr);
idr_destroy(&loop_index_idr);
blk_unregister_region(MKDEV(LOOP_MAJOR, 0), range);
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 9694dd99bbbc..3fd100990453 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -626,12 +626,13 @@ static void mtip_timeout_function(unsigned long int data)
}
}
- if (cmdto_cnt && !test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags)) {
+ if (cmdto_cnt) {
print_tags(port->dd, "timed out", tagaccum, cmdto_cnt);
-
- mtip_restart_port(port);
+ if (!test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags)) {
+ mtip_restart_port(port);
+ wake_up_interruptible(&port->svc_wait);
+ }
clear_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags);
- wake_up_interruptible(&port->svc_wait);
}
if (port->ic_pause_timer) {
@@ -3887,7 +3888,12 @@ static int mtip_block_remove(struct driver_data *dd)
* Delete our gendisk structure. This also removes the device
* from /dev
*/
- del_gendisk(dd->disk);
+ if (dd->disk) {
+ if (dd->disk->queue)
+ del_gendisk(dd->disk);
+ else
+ put_disk(dd->disk);
+ }
spin_lock(&rssd_index_lock);
ida_remove(&rssd_index_ida, dd->index);
@@ -3921,7 +3927,13 @@ static int mtip_block_shutdown(struct driver_data *dd)
"Shutting down %s ...\n", dd->disk->disk_name);
/* Delete our gendisk structure, and cleanup the blk queue. */
- del_gendisk(dd->disk);
+ if (dd->disk) {
+ if (dd->disk->queue)
+ del_gendisk(dd->disk);
+ else
+ put_disk(dd->disk);
+ }
+
spin_lock(&rssd_index_lock);
ida_remove(&rssd_index_ida, dd->index);
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 043ddcca4abf..7fecc784be01 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -98,6 +98,7 @@ static const char *nbdcmd_to_ascii(int cmd)
case NBD_CMD_READ: return "read";
case NBD_CMD_WRITE: return "write";
case NBD_CMD_DISC: return "disconnect";
+ case NBD_CMD_FLUSH: return "flush";
case NBD_CMD_TRIM: return "trim/discard";
}
return "invalid";
@@ -244,8 +245,15 @@ static int nbd_send_req(struct nbd_device *nbd, struct request *req)
request.magic = htonl(NBD_REQUEST_MAGIC);
request.type = htonl(nbd_cmd(req));
- request.from = cpu_to_be64((u64)blk_rq_pos(req) << 9);
- request.len = htonl(size);
+
+ if (nbd_cmd(req) == NBD_CMD_FLUSH) {
+ /* Other values are reserved for FLUSH requests. */
+ request.from = 0;
+ request.len = 0;
+ } else {
+ request.from = cpu_to_be64((u64)blk_rq_pos(req) << 9);
+ request.len = htonl(size);
+ }
memcpy(request.handle, &req, sizeof(req));
dprintk(DBG_TX, "%s: request %p: sending control (%s@%llu,%uB)\n",
@@ -482,6 +490,11 @@ static void nbd_handle_req(struct nbd_device *nbd, struct request *req)
}
}
+ if (req->cmd_flags & REQ_FLUSH) {
+ BUG_ON(unlikely(blk_rq_sectors(req)));
+ nbd_cmd(req) = NBD_CMD_FLUSH;
+ }
+
req->errors = 0;
mutex_lock(&nbd->tx_lock);
@@ -551,6 +564,7 @@ static int nbd_thread(void *data)
*/
static void do_nbd_request(struct request_queue *q)
+ __releases(q->queue_lock) __acquires(q->queue_lock)
{
struct request *req;
@@ -595,12 +609,20 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
struct request sreq;
dev_info(disk_to_dev(nbd->disk), "NBD_DISCONNECT\n");
+ if (!nbd->sock)
+ return -EINVAL;
+ mutex_unlock(&nbd->tx_lock);
+ fsync_bdev(bdev);
+ mutex_lock(&nbd->tx_lock);
blk_rq_init(NULL, &sreq);
sreq.cmd_type = REQ_TYPE_SPECIAL;
nbd_cmd(&sreq) = NBD_CMD_DISC;
+
+ /* Check again after getting mutex back. */
if (!nbd->sock)
return -EINVAL;
+
nbd_send_req(nbd, &sreq);
return 0;
}
@@ -614,6 +636,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
nbd_clear_que(nbd);
BUG_ON(!list_empty(&nbd->queue_head));
BUG_ON(!list_empty(&nbd->waiting_queue));
+ kill_bdev(bdev);
if (file)
fput(file);
return 0;
@@ -625,7 +648,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
return -EBUSY;
file = fget(arg);
if (file) {
- struct inode *inode = file->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(file);
if (S_ISSOCK(inode->i_mode)) {
nbd->file = file;
nbd->sock = SOCKET_I(inode);
@@ -681,9 +704,15 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
mutex_unlock(&nbd->tx_lock);
+ if (nbd->flags & NBD_FLAG_READ_ONLY)
+ set_device_ro(bdev, true);
if (nbd->flags & NBD_FLAG_SEND_TRIM)
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
nbd->disk->queue);
+ if (nbd->flags & NBD_FLAG_SEND_FLUSH)
+ blk_queue_flush(nbd->disk->queue, REQ_FLUSH);
+ else
+ blk_queue_flush(nbd->disk->queue, 0);
thread = kthread_create(nbd_thread, nbd, nbd->disk->disk_name);
if (IS_ERR(thread)) {
@@ -702,9 +731,12 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
nbd->file = NULL;
nbd_clear_que(nbd);
dev_warn(disk_to_dev(nbd->disk), "queue cleared\n");
+ kill_bdev(bdev);
queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
+ set_device_ro(bdev, false);
if (file)
fput(file);
+ nbd->flags = 0;
nbd->bytesize = 0;
bdev->bd_inode->i_size = 0;
set_capacity(nbd->disk, 0);
diff --git a/drivers/block/paride/Kconfig b/drivers/block/paride/Kconfig
index 28cf3082d442..efefb5ac3004 100644
--- a/drivers/block/paride/Kconfig
+++ b/drivers/block/paride/Kconfig
@@ -205,8 +205,8 @@ config PARIDE_EPAT
support.
config PARIDE_EPATC8
- bool "Support c7/c8 chips (EXPERIMENTAL)"
- depends on PARIDE_EPAT && EXPERIMENTAL
+ bool "Support c7/c8 chips"
+ depends on PARIDE_EPAT
help
This option enables support for the newer Shuttle EP1284 (aka c7 and
c8) chip. You need this if you are using any recent Imation SuperDisk
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 564156a8e572..5814deb6963d 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -461,7 +461,7 @@ static int generic_request(struct vdc_port *port, u8 op, void *buf, int len)
int op_len, err;
void *req_buf;
- if (!(((u64)1 << ((u64)op - 1)) & port->operations))
+ if (!(((u64)1 << (u64)op) & port->operations))
return -EOPNOTSUPP;
switch (op) {
diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 765fa2b3d337..8766a2257091 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -844,6 +844,7 @@ static int swim_floppy_init(struct swim_priv *swd)
swd->unit[drive].swd = swd;
}
+ spin_lock_init(&swd->lock);
swd->queue = blk_init_queue(do_fd_request, &swd->lock);
if (!swd->queue) {
err = -ENOMEM;
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 9d8409c02082..8ad21a25bc0d 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -889,6 +889,7 @@ static void virtblk_remove(struct virtio_device *vdev)
{
struct virtio_blk *vblk = vdev->priv;
int index = vblk->index;
+ int refc;
/* Prevent config work handler from accessing the device. */
mutex_lock(&vblk->config_lock);
@@ -903,11 +904,15 @@ static void virtblk_remove(struct virtio_device *vdev)
flush_work(&vblk->config_work);
+ refc = atomic_read(&disk_to_dev(vblk->disk)->kobj.kref.refcount);
put_disk(vblk->disk);
mempool_destroy(vblk->pool);
vdev->config->del_vqs(vdev);
kfree(vblk);
- ida_simple_remove(&vd_index_ida, index);
+
+ /* Only free device id if we don't have any users */
+ if (refc == 1)
+ ida_simple_remove(&vd_index_ida, index);
}
#ifdef CONFIG_PM
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index 74374fb762aa..5ac841ff6cc7 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -161,10 +161,12 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
static void make_response(struct xen_blkif *blkif, u64 id,
unsigned short op, int st);
-#define foreach_grant(pos, rbtree, node) \
- for ((pos) = container_of(rb_first((rbtree)), typeof(*(pos)), node); \
+#define foreach_grant_safe(pos, n, rbtree, node) \
+ for ((pos) = container_of(rb_first((rbtree)), typeof(*(pos)), node), \
+ (n) = rb_next(&(pos)->node); \
&(pos)->node != NULL; \
- (pos) = container_of(rb_next(&(pos)->node), typeof(*(pos)), node))
+ (pos) = container_of(n, typeof(*(pos)), node), \
+ (n) = (&(pos)->node != NULL) ? rb_next(&(pos)->node) : NULL)
static void add_persistent_gnt(struct rb_root *root,
@@ -217,10 +219,11 @@ static void free_persistent_gnts(struct rb_root *root, unsigned int num)
struct gnttab_unmap_grant_ref unmap[BLKIF_MAX_SEGMENTS_PER_REQUEST];
struct page *pages[BLKIF_MAX_SEGMENTS_PER_REQUEST];
struct persistent_gnt *persistent_gnt;
+ struct rb_node *n;
int ret = 0;
int segs_to_unmap = 0;
- foreach_grant(persistent_gnt, root, node) {
+ foreach_grant_safe(persistent_gnt, n, root, node) {
BUG_ON(persistent_gnt->handle ==
BLKBACK_INVALID_HANDLE);
gnttab_set_unmap_op(&unmap[segs_to_unmap],
@@ -230,9 +233,6 @@ static void free_persistent_gnts(struct rb_root *root, unsigned int num)
persistent_gnt->handle);
pages[segs_to_unmap] = persistent_gnt->page;
- rb_erase(&persistent_gnt->node, root);
- kfree(persistent_gnt);
- num--;
if (++segs_to_unmap == BLKIF_MAX_SEGMENTS_PER_REQUEST ||
!rb_next(&persistent_gnt->node)) {
@@ -241,6 +241,10 @@ static void free_persistent_gnts(struct rb_root *root, unsigned int num)
BUG_ON(ret);
segs_to_unmap = 0;
}
+
+ rb_erase(&persistent_gnt->node, root);
+ kfree(persistent_gnt);
+ num--;
}
BUG_ON(num != 0);
}
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 96e9b00db081..11043c18ac5a 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -792,6 +792,7 @@ static void blkif_free(struct blkfront_info *info, int suspend)
{
struct llist_node *all_gnts;
struct grant *persistent_gnt;
+ struct llist_node *n;
/* Prevent new requests being issued until we fix things up. */
spin_lock_irq(&info->io_lock);
@@ -804,7 +805,7 @@ static void blkif_free(struct blkfront_info *info, int suspend)
/* Remove all persistent grants */
if (info->persistent_gnts_c) {
all_gnts = llist_del_all(&info->persistent_gnts);
- llist_for_each_entry(persistent_gnt, all_gnts, node) {
+ llist_for_each_entry_safe(persistent_gnt, n, all_gnts, node) {
gnttab_end_foreign_access(persistent_gnt->gref, 0, 0UL);
__free_page(pfn_to_page(persistent_gnt->pfn));
kfree(persistent_gnt);
@@ -835,7 +836,7 @@ static void blkif_free(struct blkfront_info *info, int suspend)
static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
struct blkif_response *bret)
{
- int i;
+ int i = 0;
struct bio_vec *bvec;
struct req_iterator iter;
unsigned long flags;
@@ -852,7 +853,8 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
*/
rq_for_each_segment(bvec, s->request, iter) {
BUG_ON((bvec->bv_offset + bvec->bv_len) > PAGE_SIZE);
- i = offset >> PAGE_SHIFT;
+ if (bvec->bv_offset < offset)
+ i++;
BUG_ON(i >= s->req.u.rw.nr_segments);
shared_data = kmap_atomic(
pfn_to_page(s->grants_used[i]->pfn));
@@ -861,7 +863,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
bvec->bv_len);
bvec_kunmap_irq(bvec_data, &flags);
kunmap_atomic(shared_data);
- offset += bvec->bv_len;
+ offset = bvec->bv_offset + bvec->bv_len;
}
}
/* Add the persistent grant into the list of free grants */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 17:29:32 +0100