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authorLinus Torvalds <torvalds@linux-foundation.org>2021-08-07 10:26:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-08-07 10:26:21 -0700
commit6bbf59145c4b29a384b0a66d63ddfbf55eeb91c4 (patch)
tree69dc4ba6510e66bb7e4bc476ec6b5d1bfdc5ae35
parent0b6684ba5f5abf0dbbda35af570443181910a780 (diff)
parentfb7b9b0231ba8f77587c23f5257a4fdb6df1219e (diff)
downloadlinux-6bbf59145c4b29a384b0a66d63ddfbf55eeb91c4.tar.bz2
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
-rw-r--r--block/blk-iolatency.c6
-rw-r--r--block/kyber-iosched.c2
-rw-r--r--block/partitions/ldm.c2
-rw-r--r--drivers/block/n64cart.c2
-rw-r--r--drivers/md/raid1.c2
-rw-r--r--drivers/md/raid10.c4
-rw-r--r--drivers/s390/block/dasd_eckd.c13
7 files changed, 21 insertions, 10 deletions
diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index 81be0096411d..d8b0d8bd132b 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -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);
}
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index 81e3279ecd57..15a8be57203d 100644
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -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);
}
}
diff --git a/block/partitions/ldm.c b/block/partitions/ldm.c
index cc86534c80ad..b8b518d7fb77 100644
--- a/block/partitions/ldm.c
+++ b/block/partitions/ldm.c
@@ -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>
diff --git a/drivers/block/n64cart.c b/drivers/block/n64cart.c
index 7b4dd10af9ec..c84be0028f63 100644
--- a/drivers/block/n64cart.c
+++ b/drivers/block/n64cart.c
@@ -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);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 51f2547c2007..3c44c4bb40fc 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -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);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 16977e8e075d..07119d7e0fdf 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -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;
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 0de1a463c509..fb5d8152652d 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -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)