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Merge tag 'block-5.8-2020-06-11' of git://git.kernel.dk/linux-block

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Pull block fixes from Jens Axboe:
 "Some followup fixes for this merge window. In particular:

   - Seqcount write missing preemption disable for stats (Ahmed)

   - blktrace fixes (Chaitanya)

   - Redundant initializations (Colin)

   - Various small NVMe fixes (Chaitanya, Christoph, Daniel, Max,
     Niklas, Rikard)

   - loop flag bug regression fix (Martijn)

   - blk-mq tagging fixes (Christoph, Ming)"

* tag 'block-5.8-2020-06-11' of git://git.kernel.dk/linux-block:
  umem: remove redundant initialization of variable ret
  pktcdvd: remove redundant initialization of variable ret
  nvmet: fail outstanding host posted AEN req
  nvme-pci: use simple suspend when a HMB is enabled
  nvme-fc: don't call nvme_cleanup_cmd() for AENs
  nvmet-tcp: constify nvmet_tcp_ops
  nvme-tcp: constify nvme_tcp_mq_ops and nvme_tcp_admin_mq_ops
  nvme: do not call del_gendisk() on a disk that was never added
  blk-mq: fix blk_mq_all_tag_iter
  blk-mq: split out a __blk_mq_get_driver_tag helper
  blktrace: fix endianness for blk_log_remap()
  blktrace: fix endianness in get_pdu_int()
  blktrace: use errno instead of bi_status
  block: nr_sects_write(): Disable preemption on seqcount write
  block: remove the error argument to the block_bio_complete tracepoint
  loop: Fix wrong masking of status flags
  block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed
This commit is contained in:
Linus Torvalds
2020-06-11 16:07:33 -07:00
parent b3597945c8 9a6a5738ab
commit a58dfea297
19 changed files with 104 additions and 84 deletions
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36
kernel/trace/blktrace.c
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@@ -885,10 +885,10 @@ static void blk_add_trace_bio_bounce(void *ignore,
}
static void blk_add_trace_bio_complete(void *ignore,
struct request_queue *q, struct bio *bio,
int error)
struct request_queue *q, struct bio *bio)
{
blk_add_trace_bio(q, bio, BLK_TA_COMPLETE, error);
blk_add_trace_bio(q, bio, BLK_TA_COMPLETE,
blk_status_to_errno(bio->bi_status));
}
static void blk_add_trace_bio_backmerge(void *ignore,
@@ -995,8 +995,10 @@ static void blk_add_trace_split(void *ignore,
__blk_add_trace(bt, bio->bi_iter.bi_sector,
bio->bi_iter.bi_size, bio_op(bio), bio->bi_opf,
BLK_TA_SPLIT, bio->bi_status, sizeof(rpdu),
&rpdu, blk_trace_bio_get_cgid(q, bio));
BLK_TA_SPLIT,
blk_status_to_errno(bio->bi_status),
sizeof(rpdu), &rpdu,
blk_trace_bio_get_cgid(q, bio));
}
rcu_read_unlock();
}
@@ -1033,7 +1035,8 @@ static void blk_add_trace_bio_remap(void *ignore,
r.sector_from = cpu_to_be64(from);
__blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
bio_op(bio), bio->bi_opf, BLK_TA_REMAP, bio->bi_status,
bio_op(bio), bio->bi_opf, BLK_TA_REMAP,
blk_status_to_errno(bio->bi_status),
sizeof(r), &r, blk_trace_bio_get_cgid(q, bio));
rcu_read_unlock();
}
@@ -1253,21 +1256,10 @@ static inline __u16 t_error(const struct trace_entry *ent)
static __u64 get_pdu_int(const struct trace_entry *ent, bool has_cg)
{
const __u64 *val = pdu_start(ent, has_cg);
const __be64 *val = pdu_start(ent, has_cg);
return be64_to_cpu(*val);
}
static void get_pdu_remap(const struct trace_entry *ent,
struct blk_io_trace_remap *r, bool has_cg)
{
const struct blk_io_trace_remap *__r = pdu_start(ent, has_cg);
__u64 sector_from = __r->sector_from;
r->device_from = be32_to_cpu(__r->device_from);
r->device_to = be32_to_cpu(__r->device_to);
r->sector_from = be64_to_cpu(sector_from);
}
typedef void (blk_log_action_t) (struct trace_iterator *iter, const char *act,
bool has_cg);
@@ -1407,13 +1399,13 @@ static void blk_log_with_error(struct trace_seq *s,
static void blk_log_remap(struct trace_seq *s, const struct trace_entry *ent, bool has_cg)
{
struct blk_io_trace_remap r = { .device_from = 0, };
const struct blk_io_trace_remap *__r = pdu_start(ent, has_cg);
get_pdu_remap(ent, &r, has_cg);
trace_seq_printf(s, "%llu + %u <- (%d,%d) %llu\n",
t_sector(ent), t_sec(ent),
MAJOR(r.device_from), MINOR(r.device_from),
(unsigned long long)r.sector_from);
MAJOR(be32_to_cpu(__r->device_from)),
MINOR(be32_to_cpu(__r->device_from)),
be64_to_cpu(__r->sector_from));
}
static void blk_log_plug(struct trace_seq *s, const struct trace_entry *ent, bool has_cg)