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block-5.14-2021-08-07 

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Merge tag 'block-5.14-2021-08-07' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few minor fixes:

   - Fix ldm kernel-doc warning (Bart)

   - Fix adding offset twice for DMA address in n64cart (Christoph)

   - Fix use-after-free in dasd path handling (Stefan)

   - Order kyber insert trace correctly (Vincent)

   - raid1 errored write handling fix (Wei)

   - Fix blk-iolatency queue get failure handling (Yu)"

* tag 'block-5.14-2021-08-07' of git://git.kernel.dk/linux-block:
  kyber: make trace_block_rq call consistent with documentation
  block/partitions/ldm.c: Fix a kernel-doc warning
  blk-iolatency: error out if blk_get_queue() failed in iolatency_set_limit()
  n64cart: fix the dma address in n64cart_do_bvec
  s390/dasd: fix use after free in dasd path handling
  md/raid10: properly indicate failure when ending a failed write request
This commit is contained in:
Linus Torvalds 2021-08-07 10:26:21 -07:00
parent 0b6684ba5f fb7b9b0231
commit 6bbf59145c
7 changed files with 21 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
block/blk-iolatency.c
View File

@ -833,7 +833,11 @@ static ssize_t iolatency_set_limit(struct kernfs_open_file *of, char *buf,
enable = iolatency_set_min_lat_nsec(blkg, lat_val);
if (enable) {
WARN_ON_ONCE(!blk_get_queue(blkg->q));
if (!blk_get_queue(blkg->q)) {
ret = -ENODEV;
goto out;
}
blkg_get(blkg);
}

2
block/kyber-iosched.c
View File

@ -596,13 +596,13 @@ static void kyber_insert_requests(struct blk_mq_hw_ctx *hctx,
struct list_head *head = &kcq->rq_list[sched_domain];
spin_lock(&kcq->lock);
trace_block_rq_insert(rq);
if (at_head)
list_move(&rq->queuelist, head);
else
list_move_tail(&rq->queuelist, head);
sbitmap_set_bit(&khd->kcq_map[sched_domain],
rq->mq_ctx->index_hw[hctx->type]);
trace_block_rq_insert(rq);
spin_unlock(&kcq->lock);
}
}

2
block/partitions/ldm.c
View File

@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/**
/*
* ldm - Support for Windows Logical Disk Manager (Dynamic Disks)
*
* Copyright (C) 2001,2002 Richard Russon <ldm@flatcap.org>

2
drivers/block/n64cart.c
View File

@ -74,7 +74,7 @@ static bool n64cart_do_bvec(struct device *dev, struct bio_vec *bv, u32 pos)
n64cart_wait_dma();
n64cart_write_reg(PI_DRAM_REG, dma_addr + bv->bv_offset);
n64cart_write_reg(PI_DRAM_REG, dma_addr);
n64cart_write_reg(PI_CART_REG, (bstart | CART_DOMAIN) & CART_MAX);
n64cart_write_reg(PI_WRITE_REG, bv->bv_len - 1);

2
drivers/md/raid1.c
View File

@ -474,8 +474,6 @@ static void raid1_end_write_request(struct bio *bio)
/*
* When the device is faulty, it is not necessary to
* handle write error.
* For failfast, this is the only remaining device,
* We need to retry the write without FailFast.
*/
if (!test_bit(Faulty, &rdev->flags))
set_bit(R1BIO_WriteError, &r1_bio->state);

4
drivers/md/raid10.c
View File

@ -471,12 +471,12 @@ static void raid10_end_write_request(struct bio *bio)
/*
* When the device is faulty, it is not necessary to
* handle write error.
* For failfast, this is the only remaining device,
* We need to retry the write without FailFast.
*/
if (!test_bit(Faulty, &rdev->flags))
set_bit(R10BIO_WriteError, &r10_bio->state);
else {
/* Fail the request */
set_bit(R10BIO_Degraded, &r10_bio->state);
r10_bio->devs[slot].bio = NULL;
to_put = bio;
dec_rdev = 1;

13
drivers/s390/block/dasd_eckd.c
View File

@ -1004,15 +1004,23 @@ static unsigned char dasd_eckd_path_access(void *conf_data, int conf_len)
static void dasd_eckd_store_conf_data(struct dasd_device *device,
struct dasd_conf_data *conf_data, int chp)
{
struct dasd_eckd_private *private = device->private;
struct channel_path_desc_fmt0 *chp_desc;
struct subchannel_id sch_id;
void *cdp;
ccw_device_get_schid(device->cdev, &sch_id);
/*
* path handling and read_conf allocate data
* free it before replacing the pointer
* also replace the old private->conf_data pointer
* with the new one if this points to the same data
*/
kfree(device->path[chp].conf_data);
cdp = device->path[chp].conf_data;
if (private->conf_data == cdp) {
private->conf_data = (void *)conf_data;
dasd_eckd_identify_conf_parts(private);
}
ccw_device_get_schid(device->cdev, &sch_id);
device->path[chp].conf_data = conf_data;
device->path[chp].cssid = sch_id.cssid;
device->path[chp].ssid = sch_id.ssid;
@ -1020,6 +1028,7 @@ static void dasd_eckd_store_conf_data(struct dasd_device *device,
if (chp_desc)
device->path[chp].chpid = chp_desc->chpid;
kfree(chp_desc);
kfree(cdp);
}
static void dasd_eckd_clear_conf_data(struct dasd_device *device)