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Merge tag 'for-linus-20180608' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few fixes for this merge window, where some of them should go in
  sooner rather than later, hence a new pull this week. This pull
  request contains:

   - Set of NVMe fixes, mostly follow up cleanups/fixes to the queue
     changes, but also teardown/removal and misc changes (Christop/Dan/
     Johannes/Sagi/Steve).

   - Two lightnvm fixes for issues that showed up in this window
     (Colin/Wei).

   - Failfast/driver flags inheritance for flush requests (Hannes).

   - The md device put sanitization and fix (Kent).

   - dm bio_set inheritance fix (me).

   - nbd discard granularity fix (Josef).

   - nbd consistency in command printing (Kevin).

   - Loop recursion validation fix (Ted).

   - Partition overlap check (Wang)"

[ .. and now my build is warning-free again thanks to the md fix  - Linus ]

* tag 'for-linus-20180608' of git://git.kernel.dk/linux-block: (22 commits)
  nvme: cleanup double shift issue
  nvme-pci: make CMB SQ mod-param read-only
  nvme-pci: unquiesce dead controller queues
  nvme-pci: remove HMB teardown on reset
  nvme-pci: queue creation fixes
  nvme-pci: remove unnecessary completion doorbell check
  nvme-pci: remove unnecessary nested locking
  nvmet: filter newlines from user input
  nvme-rdma: correctly check for target keyed sgl support
  nvme: don't hold nvmf_transports_rwsem for more than transport lookups
  nvmet: return all zeroed buffer when we can't find an active namespace
  md: Unify mddev destruction paths
  dm: use bioset_init_from_src() to copy bio_set
  block: add bioset_init_from_src() helper
  block: always set partition number to '0' in blk_partition_remap()
  block: pass failfast and driver-specific flags to flush requests
  nbd: set discard_alignment to the granularity
  nbd: Consistently use request pointer in debug messages.
  block: add verifier for cmdline partition
  lightnvm: pblk: fix resource leak of invalid_bitmap
  ...
This commit is contained in:
Linus Torvalds 2018-06-08 13:36:19 -07:00
commit a3818841bd
19 changed files with 205 additions and 125 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
block/bio.c
View File

@ -1997,6 +1997,24 @@ bad:
}
EXPORT_SYMBOL(bioset_init);
/*
* Initialize and setup a new bio_set, based on the settings from
* another bio_set.
*/
int bioset_init_from_src(struct bio_set *bs, struct bio_set *src)
{
int flags;
flags = 0;
if (src->bvec_pool.min_nr)
flags |= BIOSET_NEED_BVECS;
if (src->rescue_workqueue)
flags |= BIOSET_NEED_RESCUER;
return bioset_init(bs, src->bio_pool.min_nr, src->front_pad, flags);
}
EXPORT_SYMBOL(bioset_init_from_src);
#ifdef CONFIG_BLK_CGROUP
/**

2
block/blk-core.c
View File

@ -2220,10 +2220,10 @@ static inline int blk_partition_remap(struct bio *bio)
if (bio_check_eod(bio, part_nr_sects_read(p)))
goto out;
bio->bi_iter.bi_sector += p->start_sect;
bio->bi_partno = 0;
trace_block_bio_remap(bio->bi_disk->queue, bio, part_devt(p),
bio->bi_iter.bi_sector - p->start_sect);
}
bio->bi_partno = 0;
ret = 0;
out:
rcu_read_unlock();

9
block/blk-flush.c
View File

@ -94,7 +94,7 @@ enum {
};
static bool blk_kick_flush(struct request_queue *q,
struct blk_flush_queue *fq);
struct blk_flush_queue *fq, unsigned int flags);
static unsigned int blk_flush_policy(unsigned long fflags, struct request *rq)
{
@ -212,7 +212,7 @@ static bool blk_flush_complete_seq(struct request *rq,
BUG();
}
kicked = blk_kick_flush(q, fq);
kicked = blk_kick_flush(q, fq, rq->cmd_flags);
return kicked | queued;
}
@ -281,6 +281,7 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
* blk_kick_flush - consider issuing flush request
* @q: request_queue being kicked
* @fq: flush queue
* @flags: cmd_flags of the original request
*
* Flush related states of @q have changed, consider issuing flush request.
* Please read the comment at the top of this file for more info.
@ -291,7 +292,8 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
* RETURNS:
* %true if flush was issued, %false otherwise.
*/
static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq)
static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq,
unsigned int flags)
{
struct list_head *pending = &fq->flush_queue[fq->flush_pending_idx];
struct request *first_rq =
@ -346,6 +348,7 @@ static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq)
}
flush_rq->cmd_flags = REQ_OP_FLUSH | REQ_PREFLUSH;
flush_rq->cmd_flags |= (flags & REQ_DRV) | (flags & REQ_FAILFAST_MASK);
flush_rq->rq_flags |= RQF_FLUSH_SEQ;
flush_rq->rq_disk = first_rq->rq_disk;
flush_rq->end_io = flush_end_io;

57
block/partitions/cmdline.c
View File

@ -58,6 +58,62 @@ static int __init cmdline_parts_setup(char *s)
}
__setup("blkdevparts=", cmdline_parts_setup);
static bool has_overlaps(sector_t from, sector_t size,
sector_t from2, sector_t size2)
{
sector_t end = from + size;
sector_t end2 = from2 + size2;
if (from >= from2 && from < end2)
return true;
if (end > from2 && end <= end2)
return true;
if (from2 >= from && from2 < end)
return true;
if (end2 > from && end2 <= end)
return true;
return false;
}
static inline void overlaps_warns_header(void)
{
pr_warn("Overlapping partitions are used in command line partitions.");
pr_warn("Don't use filesystems on overlapping partitions:");
}
static void cmdline_parts_verifier(int slot, struct parsed_partitions *state)
{
int i;
bool header = true;
for (; slot < state->limit && state->parts[slot].has_info; slot++) {
for (i = slot+1; i < state->limit && state->parts[i].has_info;
i++) {
if (has_overlaps(state->parts[slot].from,
state->parts[slot].size,
state->parts[i].from,
state->parts[i].size)) {
if (header) {
header = false;
overlaps_warns_header();
}
pr_warn("%s[%llu,%llu] overlaps with "
"%s[%llu,%llu].",
state->parts[slot].info.volname,
(u64)state->parts[slot].from << 9,
(u64)state->parts[slot].size << 9,
state->parts[i].info.volname,
(u64)state->parts[i].from << 9,
(u64)state->parts[i].size << 9);
}
}
}
}
/*
* Purpose: allocate cmdline partitions.
* Returns:
@ -93,6 +149,7 @@ int cmdline_partition(struct parsed_partitions *state)
disk_size = get_capacity(state->bdev->bd_disk) << 9;
cmdline_parts_set(parts, disk_size, 1, add_part, (void *)state);
cmdline_parts_verifier(1, state);
strlcat(state->pp_buf, "\n", PAGE_SIZE);

68
drivers/block/loop.c
View File

@ -647,6 +647,36 @@ static void loop_reread_partitions(struct loop_device *lo,
__func__, lo->lo_number, lo->lo_file_name, rc);
}
static inline int is_loop_device(struct file *file)
{
struct inode *i = file->f_mapping->host;
return i && S_ISBLK(i->i_mode) && MAJOR(i->i_rdev) == LOOP_MAJOR;
}
static int loop_validate_file(struct file *file, struct block_device *bdev)
{
struct inode *inode = file->f_mapping->host;
struct file *f = file;
/* Avoid recursion */
while (is_loop_device(f)) {
struct loop_device *l;
if (f->f_mapping->host->i_bdev == bdev)
return -EBADF;
l = f->f_mapping->host->i_bdev->bd_disk->private_data;
if (l->lo_state == Lo_unbound) {
return -EINVAL;
}
f = l->lo_backing_file;
}
if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode))
return -EINVAL;
return 0;
}
/*
* loop_change_fd switched the backing store of a loopback device to
* a new file. This is useful for operating system installers to free up
@ -676,14 +706,15 @@ static int loop_change_fd(struct loop_device *lo, struct block_device *bdev,
if (!file)
goto out;
error = loop_validate_file(file, bdev);
if (error)
goto out_putf;
inode = file->f_mapping->host;
old_file = lo->lo_backing_file;
error = -EINVAL;
if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode))
goto out_putf;
/* size of the new backing store needs to be the same */
if (get_loop_size(lo, file) != get_loop_size(lo, old_file))
goto out_putf;
@ -709,13 +740,6 @@ static int loop_change_fd(struct loop_device *lo, struct block_device *bdev,
return error;
}
static inline int is_loop_device(struct file *file)
{
struct inode *i = file->f_mapping->host;
return i && S_ISBLK(i->i_mode) && MAJOR(i->i_rdev) == LOOP_MAJOR;
}
/* loop sysfs attributes */
static ssize_t loop_attr_show(struct device *dev, char *page,
@ -881,7 +905,7 @@ static int loop_prepare_queue(struct loop_device *lo)
static int loop_set_fd(struct loop_device *lo, fmode_t mode,
struct block_device *bdev, unsigned int arg)
{
struct file *file, *f;
struct file *file;
struct inode *inode;
struct address_space *mapping;
int lo_flags = 0;
@ -900,29 +924,13 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
if (lo->lo_state != Lo_unbound)
goto out_putf;
/* Avoid recursion */
f = file;
while (is_loop_device(f)) {
struct loop_device *l;
if (f->f_mapping->host->i_bdev == bdev)
goto out_putf;
l = f->f_mapping->host->i_bdev->bd_disk->private_data;
if (l->lo_state == Lo_unbound) {
error = -EINVAL;
goto out_putf;
}
f = l->lo_backing_file;
}
error = loop_validate_file(file, bdev);
if (error)
goto out_putf;
mapping = file->f_mapping;
inode = mapping->host;
error = -EINVAL;
if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode))
goto out_putf;
if (!(file->f_mode & FMODE_WRITE) || !(mode & FMODE_WRITE) ||
!file->f_op->write_iter)
lo_flags |= LO_FLAGS_READ_ONLY;

13
drivers/block/nbd.c
View File

@ -246,6 +246,7 @@ static void nbd_size_update(struct nbd_device *nbd)
if (config->flags & NBD_FLAG_SEND_TRIM) {
nbd->disk->queue->limits.discard_granularity = config->blksize;
nbd->disk->queue->limits.discard_alignment = config->blksize;
blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX);
}
blk_queue_logical_block_size(nbd->disk->queue, config->blksize);
@ -275,7 +276,7 @@ static void nbd_complete_rq(struct request *req)
{
struct nbd_cmd *cmd = blk_mq_rq_to_pdu(req);
dev_dbg(nbd_to_dev(cmd->nbd), "request %p: %s\n", cmd,
dev_dbg(nbd_to_dev(cmd->nbd), "request %p: %s\n", req,
cmd->status ? "failed" : "done");
blk_mq_end_request(req, cmd->status);
@ -482,7 +483,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
memcpy(request.handle, &tag, sizeof(tag));
dev_dbg(nbd_to_dev(nbd), "request %p: sending control (%s@%llu,%uB)\n",
cmd, nbdcmd_to_ascii(type),
req, nbdcmd_to_ascii(type),
(unsigned long long)blk_rq_pos(req) << 9, blk_rq_bytes(req));
result = sock_xmit(nbd, index, 1, &from,
(type == NBD_CMD_WRITE) ? MSG_MORE : 0, &sent);
@ -518,7 +519,7 @@ send_pages:
int flags = is_last ? 0 : MSG_MORE;
dev_dbg(nbd_to_dev(nbd), "request %p: sending %d bytes data\n",
cmd, bvec.bv_len);
req, bvec.bv_len);
iov_iter_bvec(&from, ITER_BVEC | WRITE,
&bvec, 1, bvec.bv_len);
if (skip) {
@ -610,7 +611,7 @@ static struct nbd_cmd *nbd_read_stat(struct nbd_device *nbd, int index)
return cmd;
}
dev_dbg(nbd_to_dev(nbd), "request %p: got reply\n", cmd);
dev_dbg(nbd_to_dev(nbd), "request %p: got reply\n", req);
if (rq_data_dir(req) != WRITE) {
struct req_iterator iter;
struct bio_vec bvec;
@ -637,7 +638,7 @@ static struct nbd_cmd *nbd_read_stat(struct nbd_device *nbd, int index)
return ERR_PTR(-EIO);
}
dev_dbg(nbd_to_dev(nbd), "request %p: got %d bytes data\n",
cmd, bvec.bv_len);
req, bvec.bv_len);
}
} else {
/* See the comment in nbd_queue_rq. */
@ -1062,6 +1063,7 @@ static void nbd_config_put(struct nbd_device *nbd)
nbd->tag_set.timeout = 0;
nbd->disk->queue->limits.discard_granularity = 0;
nbd->disk->queue->limits.discard_alignment = 0;
blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX);
blk_queue_flag_clear(QUEUE_FLAG_DISCARD, nbd->disk->queue);
@ -1516,6 +1518,7 @@ static int nbd_dev_add(int index)
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;
disk->queue->limits.discard_alignment = 0;
blk_queue_max_discard_sectors(disk->queue, 0);
blk_queue_max_segment_size(disk->queue, UINT_MAX);
blk_queue_max_segments(disk->queue, USHRT_MAX);

3
drivers/lightnvm/pblk-gc.c
View File

@ -203,7 +203,7 @@ static void pblk_gc_line_prepare_ws(struct work_struct *work)
if (!lba_list) {
pr_err("pblk: could not interpret emeta (line %d)\n",
line->id);
goto fail_free_ws;
goto fail_free_invalid_bitmap;
}
}
@ -280,6 +280,7 @@ fail_free_gc_rq:
kfree(gc_rq);
fail_free_lba_list:
pblk_mfree(lba_list, l_mg->emeta_alloc_type);
fail_free_invalid_bitmap:
kfree(invalid_bitmap);
fail_free_ws:
kfree(line_ws);

2
drivers/lightnvm/pblk-init.c
View File

@ -20,7 +20,7 @@
#include "pblk.h"
unsigned int write_buffer_size;
static unsigned int write_buffer_size;
module_param(write_buffer_size, uint, 0644);
MODULE_PARM_DESC(write_buffer_size, "number of entries in a write buffer");

22
drivers/md/dm.c
View File

@ -1953,9 +1953,10 @@ static void free_dev(struct mapped_device *md)
kvfree(md);
}
static void __bind_mempools(struct mapped_device *md, struct dm_table *t)
static int __bind_mempools(struct mapped_device *md, struct dm_table *t)
{
struct dm_md_mempools *p = dm_table_get_md_mempools(t);
int ret = 0;
if (dm_table_bio_based(t)) {
/*
@ -1982,13 +1983,16 @@ static void __bind_mempools(struct mapped_device *md, struct dm_table *t)
bioset_initialized(&md->bs) ||
bioset_initialized(&md->io_bs));
md->bs = p->bs;
memset(&p->bs, 0, sizeof(p->bs));
md->io_bs = p->io_bs;
memset(&p->io_bs, 0, sizeof(p->io_bs));
ret = bioset_init_from_src(&md->bs, &p->bs);
if (ret)
goto out;
ret = bioset_init_from_src(&md->io_bs, &p->io_bs);
if (ret)
bioset_exit(&md->bs);
out:
/* mempool bind completed, no longer need any mempools in the table */
dm_table_free_md_mempools(t);
return ret;
}
/*
@ -2033,6 +2037,7 @@ static struct dm_table *__bind(struct mapped_device *md, struct dm_table *t,
struct request_queue *q = md->queue;
bool request_based = dm_table_request_based(t);
sector_t size;
int ret;
lockdep_assert_held(&md->suspend_lock);
@ -2068,7 +2073,11 @@ static struct dm_table *__bind(struct mapped_device *md, struct dm_table *t,
md->immutable_target = dm_table_get_immutable_target(t);
}
__bind_mempools(md, t);
ret = __bind_mempools(md, t);
if (ret) {
old_map = ERR_PTR(ret);
goto out;
}
old_map = rcu_dereference_protected(md->map, lockdep_is_held(&md->suspend_lock));
rcu_assign_pointer(md->map, (void *)t);
@ -2078,6 +2087,7 @@ static struct dm_table *__bind(struct mapped_device *md, struct dm_table *t,
if (old_map)
dm_sync_table(md);
out:
return old_map;
}

53
drivers/md/md.c
View File

@ -84,6 +84,8 @@ static void autostart_arrays(int part);
static LIST_HEAD(pers_list);
static DEFINE_SPINLOCK(pers_lock);
static struct kobj_type md_ktype;
struct md_cluster_operations *md_cluster_ops;
EXPORT_SYMBOL(md_cluster_ops);
struct module *md_cluster_mod;
@ -510,11 +512,6 @@ static void mddev_delayed_delete(struct work_struct *ws);
static void mddev_put(struct mddev *mddev)
{
struct bio_set bs, sync_bs;
memset(&bs, 0, sizeof(bs));
memset(&sync_bs, 0, sizeof(sync_bs));
if (!atomic_dec_and_lock(&mddev->active, &all_mddevs_lock))
return;
if (!mddev->raid_disks && list_empty(&mddev->disks) &&
@ -522,30 +519,23 @@ static void mddev_put(struct mddev *mddev)
/* Array is not configured at all, and not held active,
* so destroy it */
list_del_init(&mddev->all_mddevs);
bs = mddev->bio_set;
sync_bs = mddev->sync_set;
memset(&mddev->bio_set, 0, sizeof(mddev->bio_set));
memset(&mddev->sync_set, 0, sizeof(mddev->sync_set));
if (mddev->gendisk) {
/* We did a probe so need to clean up. Call
* queue_work inside the spinlock so that
* flush_workqueue() after mddev_find will
* succeed in waiting for the work to be done.
*/
INIT_WORK(&mddev->del_work, mddev_delayed_delete);
queue_work(md_misc_wq, &mddev->del_work);
} else
kfree(mddev);
/*
* Call queue_work inside the spinlock so that
* flush_workqueue() after mddev_find will succeed in waiting
* for the work to be done.
*/
INIT_WORK(&mddev->del_work, mddev_delayed_delete);
queue_work(md_misc_wq, &mddev->del_work);
}
spin_unlock(&all_mddevs_lock);
bioset_exit(&bs);
bioset_exit(&sync_bs);
}
static void md_safemode_timeout(struct timer_list *t);
void mddev_init(struct mddev *mddev)
{
kobject_init(&mddev->kobj, &md_ktype);
mutex_init(&mddev->open_mutex);
mutex_init(&mddev->reconfig_mutex);
mutex_init(&mddev->bitmap_info.mutex);
@ -5215,6 +5205,8 @@ static void md_free(struct kobject *ko)
put_disk(mddev->gendisk);
percpu_ref_exit(&mddev->writes_pending);
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
kfree(mddev);
}
@ -5348,8 +5340,7 @@ static int md_alloc(dev_t dev, char *name)
mutex_lock(&mddev->open_mutex);
add_disk(disk);
error = kobject_init_and_add(&mddev->kobj, &md_ktype,
&disk_to_dev(disk)->kobj, "%s", "md");
error = kobject_add(&mddev->kobj, &disk_to_dev(disk)->kobj, "%s", "md");
if (error) {
/* This isn't possible, but as kobject_init_and_add is marked
* __must_check, we must do something with the result
@ -5506,7 +5497,7 @@ int md_run(struct mddev *mddev)
if (!bioset_initialized(&mddev->sync_set)) {
err = bioset_init(&mddev->sync_set, BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);
if (err)
goto abort;
return err;
}
spin_lock(&pers_lock);
@ -5519,8 +5510,7 @@ int md_run(struct mddev *mddev)
else
pr_warn("md: personality for level %s is not loaded!\n",
mddev->clevel);
err = -EINVAL;
goto abort;
return -EINVAL;
}
spin_unlock(&pers_lock);
if (mddev->level != pers->level) {
@ -5533,8 +5523,7 @@ int md_run(struct mddev *mddev)
pers->start_reshape == NULL) {
/* This personality cannot handle reshaping... */
module_put(pers->owner);
err = -EINVAL;
goto abort;
return -EINVAL;
}
if (pers->sync_request) {
@ -5603,7 +5592,7 @@ int md_run(struct mddev *mddev)
mddev->private = NULL;
module_put(pers->owner);
bitmap_destroy(mddev);
goto abort;
return err;
}
if (mddev->queue) {
bool nonrot = true;
@ -5665,12 +5654,6 @@ int md_run(struct mddev *mddev)
sysfs_notify_dirent_safe(mddev->sysfs_action);
sysfs_notify(&mddev->kobj, NULL, "degraded");
return 0;
abort:
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
return err;
}
EXPORT_SYMBOL_GPL(md_run);

4
drivers/nvme/host/core.c
View File

@ -3245,7 +3245,7 @@ static void nvme_scan_work(struct work_struct *work)
WARN_ON_ONCE(!ctrl->tagset);
if (test_and_clear_bit(EVENT_NS_CHANGED, &ctrl->events)) {
if (test_and_clear_bit(NVME_AER_NOTICE_NS_CHANGED, &ctrl->events)) {
if (nvme_scan_changed_ns_log(ctrl))
goto out_sort_namespaces;
dev_info(ctrl->device, "rescanning namespaces.\n");
@ -3386,7 +3386,7 @@ static void nvme_handle_aen_notice(struct nvme_ctrl *ctrl, u32 result)
{
switch ((result & 0xff00) >> 8) {
case NVME_AER_NOTICE_NS_CHANGED:
set_bit(EVENT_NS_CHANGED, &ctrl->events);
set_bit(NVME_AER_NOTICE_NS_CHANGED, &ctrl->events);
nvme_queue_scan(ctrl);
break;
case NVME_AER_NOTICE_FW_ACT_STARTING:

3
drivers/nvme/host/fabrics.c
View File

@ -952,6 +952,7 @@ nvmf_create_ctrl(struct device *dev, const char *buf, size_t count)
ret = -EBUSY;
goto out_unlock;
}
up_read(&nvmf_transports_rwsem);
ret = nvmf_check_required_opts(opts, ops->required_opts);
if (ret)
@ -968,11 +969,11 @@ nvmf_create_ctrl(struct device *dev, const char *buf, size_t count)
}
module_put(ops->module);
up_read(&nvmf_transports_rwsem);
return ctrl;
out_module_put:
module_put(ops->module);
goto out_free_opts;
out_unlock:
up_read(&nvmf_transports_rwsem);
out_free_opts:

3
drivers/nvme/host/fabrics.h
View File

@ -124,6 +124,9 @@ struct nvmf_ctrl_options {
* 1. At minimum, 'required_opts' and 'allowed_opts' should
* be set to the same enum parsing options defined earlier.
* 2. create_ctrl() must be defined (even if it does nothing)
* 3. struct nvmf_transport_ops must be statically allocated in the
* modules .bss section so that a pure module_get on @module
* prevents the memory from beeing freed.
*/
struct nvmf_transport_ops {
struct list_head entry;

1
drivers/nvme/host/nvme.h
View File

@ -194,7 +194,6 @@ struct nvme_ctrl {
struct delayed_work ka_work;
struct nvme_command ka_cmd;
struct work_struct fw_act_work;
#define EVENT_NS_CHANGED (1 << 0)
unsigned long events;
/* Power saving configuration */

35
drivers/nvme/host/pci.c
View File

@ -42,7 +42,7 @@ static int use_threaded_interrupts;
module_param(use_threaded_interrupts, int, 0);
static bool use_cmb_sqes = true;
module_param(use_cmb_sqes, bool, 0644);
module_param(use_cmb_sqes, bool, 0444);
MODULE_PARM_DESC(use_cmb_sqes, "use controller's memory buffer for I/O SQes");
static unsigned int max_host_mem_size_mb = 128;
@ -920,11 +920,9 @@ static inline void nvme_ring_cq_doorbell(struct nvme_queue *nvmeq)
{
u16 head = nvmeq->cq_head;
if (likely(nvmeq->cq_vector >= 0)) {
if (nvme_dbbuf_update_and_check_event(head, nvmeq->dbbuf_cq_db,
nvmeq->dbbuf_cq_ei))
writel(head, nvmeq->q_db + nvmeq->dev->db_stride);
}
if (nvme_dbbuf_update_and_check_event(head, nvmeq->dbbuf_cq_db,
nvmeq->dbbuf_cq_ei))
writel(head, nvmeq->q_db + nvmeq->dev->db_stride);
}
static inline void nvme_handle_cqe(struct nvme_queue *nvmeq, u16 idx)
@ -1477,11 +1475,13 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
*/
vector = dev->num_vecs == 1 ? 0 : qid;
result = adapter_alloc_cq(dev, qid, nvmeq, vector);
if (result < 0)
goto out;
if (result)
return result;
result = adapter_alloc_sq(dev, qid, nvmeq);
if (result < 0)
return result;
else if (result)
goto release_cq;
/*
@ -1503,7 +1503,6 @@ release_sq:
adapter_delete_sq(dev, qid);
release_cq:
adapter_delete_cq(dev, qid);
out:
return result;
}
@ -2012,13 +2011,7 @@ static void nvme_del_cq_end(struct request *req, blk_status_t error)
if (!error) {
unsigned long flags;
/*
* We might be called with the AQ cq_lock held
* and the I/O queue cq_lock should always
* nest inside the AQ one.
*/
spin_lock_irqsave_nested(&nvmeq->cq_lock, flags,
SINGLE_DEPTH_NESTING);
spin_lock_irqsave(&nvmeq->cq_lock, flags);
nvme_process_cq(nvmeq, &start, &end, -1);
spin_unlock_irqrestore(&nvmeq->cq_lock, flags);
@ -2231,14 +2224,6 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
nvme_stop_queues(&dev->ctrl);
if (!dead && dev->ctrl.queue_count > 0) {
/*
* If the controller is still alive tell it to stop using the
* host memory buffer. In theory the shutdown / reset should
* make sure that it doesn't access the host memoery anymore,
* but I'd rather be safe than sorry..
*/
if (dev->host_mem_descs)
nvme_set_host_mem(dev, 0);
nvme_disable_io_queues(dev);
nvme_disable_admin_queue(dev, shutdown);
}
@ -2614,7 +2599,7 @@ static void nvme_remove(struct pci_dev *pdev)
if (!pci_device_is_present(pdev)) {
nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_DEAD);
nvme_dev_disable(dev, false);
nvme_dev_disable(dev, true);
}
flush_work(&dev->ctrl.reset_work);

5
drivers/nvme/host/rdma.c
View File

@ -1951,8 +1951,9 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
}
/* sanity check keyed sgls */
if (!(ctrl->ctrl.sgls & (1 << 20))) {
dev_err(ctrl->ctrl.device, "Mandatory keyed sgls are not support\n");
if (!(ctrl->ctrl.sgls & (1 << 2))) {
dev_err(ctrl->ctrl.device,
"Mandatory keyed sgls are not supported!\n");
ret = -EINVAL;
goto out_remove_admin_queue;
}

17
drivers/nvme/target/admin-cmd.c
View File

@ -270,8 +270,7 @@ static void nvmet_execute_identify_ns(struct nvmet_req *req)
struct nvme_id_ns *id;
u16 status = 0;
ns = nvmet_find_namespace(req->sq->ctrl, req->cmd->identify.nsid);
if (!ns) {
if (le32_to_cpu(req->cmd->identify.nsid) == NVME_NSID_ALL) {
status = NVME_SC_INVALID_NS | NVME_SC_DNR;
goto out;
}
@ -279,9 +278,14 @@ static void nvmet_execute_identify_ns(struct nvmet_req *req)
id = kzalloc(sizeof(*id), GFP_KERNEL);
if (!id) {
status = NVME_SC_INTERNAL;
goto out_put_ns;
goto out;
}
/* return an all zeroed buffer if we can't find an active namespace */
ns = nvmet_find_namespace(req->sq->ctrl, req->cmd->identify.nsid);
if (!ns)
goto done;
/*
* nuse = ncap = nsze isn't always true, but we have no way to find
* that out from the underlying device.
@ -306,11 +310,10 @@ static void nvmet_execute_identify_ns(struct nvmet_req *req)
id->lbaf[0].ds = ns->blksize_shift;
status = nvmet_copy_to_sgl(req, 0, id, sizeof(*id));
kfree(id);
out_put_ns:
nvmet_put_namespace(ns);
done:
status = nvmet_copy_to_sgl(req, 0, id, sizeof(*id));
kfree(id);
out:
nvmet_req_complete(req, status);
}

14
drivers/nvme/target/configfs.c
View File

@ -137,8 +137,10 @@ static ssize_t nvmet_addr_traddr_store(struct config_item *item,
pr_err("Disable the address before modifying\n");
return -EACCES;
}
return snprintf(port->disc_addr.traddr,
sizeof(port->disc_addr.traddr), "%s", page);
if (sscanf(page, "%s\n", port->disc_addr.traddr) != 1)
return -EINVAL;
return count;
}
CONFIGFS_ATTR(nvmet_, addr_traddr);
@ -208,8 +210,10 @@ static ssize_t nvmet_addr_trsvcid_store(struct config_item *item,
pr_err("Disable the address before modifying\n");
return -EACCES;
}
return snprintf(port->disc_addr.trsvcid,
sizeof(port->disc_addr.trsvcid), "%s", page);
if (sscanf(page, "%s\n", port->disc_addr.trsvcid) != 1)
return -EINVAL;
return count;
}
CONFIGFS_ATTR(nvmet_, addr_trsvcid);
@ -288,7 +292,7 @@ static ssize_t nvmet_ns_device_path_store(struct config_item *item,
kfree(ns->device_path);
ret = -ENOMEM;
ns->device_path = kstrdup(page, GFP_KERNEL);
ns->device_path = kstrndup(page, strcspn(page, "\n"), GFP_KERNEL);
if (!ns->device_path)
goto out_unlock;

1
include/linux/bio.h
View File

@ -422,6 +422,7 @@ enum {
extern int bioset_init(struct bio_set *, unsigned int, unsigned int, int flags);
extern void bioset_exit(struct bio_set *);
extern int biovec_init_pool(mempool_t *pool, int pool_entries);
extern int bioset_init_from_src(struct bio_set *bs, struct bio_set *src);
extern struct bio *bio_alloc_bioset(gfp_t, unsigned int, struct bio_set *);
extern void bio_put(struct bio *);