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

Browse Source 
Pull misc block fixes from Jens Axboe:
 "Stuff that got collected after the merge window opened.  This
  contains:

   - NVMe:
        - Fix for non-striped transfer size setting for NVMe from
          Sathyavathi.
        - (Some) support for the weird Apple nvme controller in the
          macbooks. From Stephan Günther.

   - The error value leak for dax from Al.

   - A few minor blk-mq tweaks from me.

   - Add the new linux-block@vger.kernel.org mailing list to the
     MAINTAINERS file.

   - Discard fix for brd, from Jan.

   - A kerneldoc warning for block core from Randy.

   - An older fix from Vivek, converting a WARN_ON() to a rate limited
     printk when a device is hot removed with dirty inodes"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: don't hardcode blk_qc_t -> tag mask
  dax_io(): don't let non-error value escape via retval instead of EFAULT
  block: fix blk-core.c kernel-doc warning
  fs/block_dev.c: Remove WARN_ON() when inode writeback fails
  NVMe: add support for Apple NVMe controller
  NVMe: use split lo_hi_{read,write}q
  blk-mq: mark __blk_mq_complete_request() static
  MAINTAINERS: add reference to new linux-block list
  NVMe: Increase the max transfer size when mdts is 0
  brd: Refuse improperly aligned discard requests
This commit is contained in:
Linus Torvalds 2015-11-12 15:54:30 -08:00
commit 5e2078b289
9 changed files with 33 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
MAINTAINERS
View File

@ -2210,6 +2210,7 @@ F: drivers/leds/leds-blinkm.c
BLOCK LAYER
M: Jens Axboe <axboe@kernel.dk>
L: linux-block@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
S: Maintained
F: block/

3
block/blk-core.c
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@ -1575,6 +1575,9 @@ bool bio_attempt_front_merge(struct request_queue *q, struct request *req,
* @q: request_queue new bio is being queued at
* @bio: new bio being queued
* @request_count: out parameter for number of traversed plugged requests
* @same_queue_rq: pointer to &struct request that gets filled in when
* another request associated with @q is found on the plug list
* (optional, may be %NULL)
*
* Determine whether @bio being queued on @q can be merged with a request
* on %current's plugged list. Returns %true if merge was successful,

2
block/blk-mq.c
View File

@ -358,7 +358,7 @@ static void blk_mq_ipi_complete_request(struct request *rq)
put_cpu();
}
void __blk_mq_complete_request(struct request *rq)
static void __blk_mq_complete_request(struct request *rq)
{
struct request_queue *q = rq->q;

1
block/blk-mq.h
View File

@ -25,7 +25,6 @@ struct blk_mq_ctx {
struct kobject kobj;
} ____cacheline_aligned_in_smp;
void __blk_mq_complete_request(struct request *rq);
void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async);
void blk_mq_freeze_queue(struct request_queue *q);
void blk_mq_free_queue(struct request_queue *q);

3
drivers/block/brd.c
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@ -337,6 +337,9 @@ static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio)
goto io_error;
if (unlikely(bio->bi_rw & REQ_DISCARD)) {
if (sector & ((PAGE_SIZE >> SECTOR_SHIFT) - 1) ||
bio->bi_iter.bi_size & PAGE_MASK)
goto io_error;
discard_from_brd(brd, sector, bio->bi_iter.bi_size);
goto out;
}

15
drivers/nvme/host/pci.c
View File

@ -1725,7 +1725,7 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
{
int result;
u32 aqa;
u64 cap = readq(&dev->bar->cap);
u64 cap = lo_hi_readq(&dev->bar->cap);
struct nvme_queue *nvmeq;
unsigned page_shift = PAGE_SHIFT;
unsigned dev_page_min = NVME_CAP_MPSMIN(cap) + 12;
@ -1774,8 +1774,8 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
dev->ctrl_config |= NVME_CC_IOSQES | NVME_CC_IOCQES;
writel(aqa, &dev->bar->aqa);
writeq(nvmeq->sq_dma_addr, &dev->bar->asq);
writeq(nvmeq->cq_dma_addr, &dev->bar->acq);
lo_hi_writeq(nvmeq->sq_dma_addr, &dev->bar->asq);
lo_hi_writeq(nvmeq->cq_dma_addr, &dev->bar->acq);
result = nvme_enable_ctrl(dev, cap);
if (result)
@ -2606,7 +2606,7 @@ static int nvme_dev_add(struct nvme_dev *dev)
struct pci_dev *pdev = to_pci_dev(dev->dev);
int res;
struct nvme_id_ctrl *ctrl;
int shift = NVME_CAP_MPSMIN(readq(&dev->bar->cap)) + 12;
int shift = NVME_CAP_MPSMIN(lo_hi_readq(&dev->bar->cap)) + 12;
res = nvme_identify_ctrl(dev, &ctrl);
if (res) {
@ -2622,6 +2622,8 @@ static int nvme_dev_add(struct nvme_dev *dev)
memcpy(dev->firmware_rev, ctrl->fr, sizeof(ctrl->fr));
if (ctrl->mdts)
dev->max_hw_sectors = 1 << (ctrl->mdts + shift - 9);
else
dev->max_hw_sectors = UINT_MAX;
if ((pdev->vendor == PCI_VENDOR_ID_INTEL) &&
(pdev->device == 0x0953) && ctrl->vs[3]) {
unsigned int max_hw_sectors;
@ -2695,7 +2697,7 @@ static int nvme_dev_map(struct nvme_dev *dev)
goto unmap;
}
cap = readq(&dev->bar->cap);
cap = lo_hi_readq(&dev->bar->cap);
dev->q_depth = min_t(int, NVME_CAP_MQES(cap) + 1, NVME_Q_DEPTH);
dev->db_stride = 1 << NVME_CAP_STRIDE(cap);
dev->dbs = ((void __iomem *)dev->bar) + 4096;
@ -2758,7 +2760,7 @@ static void nvme_wait_dq(struct nvme_delq_ctx *dq, struct nvme_dev *dev)
* queues than admin tags.
*/
set_current_state(TASK_RUNNING);
nvme_disable_ctrl(dev, readq(&dev->bar->cap));
nvme_disable_ctrl(dev, lo_hi_readq(&dev->bar->cap));
nvme_clear_queue(dev->queues[0]);
flush_kthread_worker(dq->worker);
nvme_disable_queue(dev, 0);
@ -3401,6 +3403,7 @@ static const struct pci_error_handlers nvme_err_handler = {
static const struct pci_device_id nvme_id_table[] = {
{ PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) },
{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2001) },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, nvme_id_table);

15
fs/block_dev.c
View File

@ -50,12 +50,21 @@ struct block_device *I_BDEV(struct inode *inode)
}
EXPORT_SYMBOL(I_BDEV);
static void bdev_write_inode(struct inode *inode)
static void bdev_write_inode(struct block_device *bdev)
{
struct inode *inode = bdev->bd_inode;
int ret;
spin_lock(&inode->i_lock);
while (inode->i_state & I_DIRTY) {
spin_unlock(&inode->i_lock);
WARN_ON_ONCE(write_inode_now(inode, true));
ret = write_inode_now(inode, true);
if (ret) {
char name[BDEVNAME_SIZE];
pr_warn_ratelimited("VFS: Dirty inode writeback failed "
"for block device %s (err=%d).\n",
bdevname(bdev, name), ret);
}
spin_lock(&inode->i_lock);
}
spin_unlock(&inode->i_lock);
@ -1504,7 +1513,7 @@ static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
* ->release can cause the queue to disappear, so flush all
* dirty data before.
*/
bdev_write_inode(bdev->bd_inode);
bdev_write_inode(bdev);
}
if (bdev->bd_contains == bdev) {
if (disk->fops->release)

4
fs/dax.c
View File

@ -174,8 +174,10 @@ static ssize_t dax_io(struct inode *inode, struct iov_iter *iter,
else
len = iov_iter_zero(max - pos, iter);
if (!len)
if (!len) {
retval = -EFAULT;
break;
}
pos += len;
addr += len;

2
include/linux/blk_types.h
View File

@ -265,7 +265,7 @@ static inline unsigned int blk_qc_t_to_queue_num(blk_qc_t cookie)
static inline unsigned int blk_qc_t_to_tag(blk_qc_t cookie)
{
return cookie & 0xffff;
return cookie & ((1u << BLK_QC_T_SHIFT) - 1);
}
#endif /* __LINUX_BLK_TYPES_H */