Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:
 "Pretty quiet round for this release. This contains:

   - Add support for zoned storage to ublk (Andreas, Ming)

   - Series improving performance for drivers that mark themselves as
     needing a blocking context for issue (Bart)

   - Cleanup the flush logic (Chengming)

   - sed opal keyring support (Greg)

   - Fixes and improvements to the integrity support (Jinyoung)

   - Add some exports for bcachefs that we can hopefully delete again in
     the future (Kent)

   - deadline throttling fix (Zhiguo)

   - Series allowing building the kernel without buffer_head support
     (Christoph)

   - Sanitize the bio page adding flow (Christoph)

   - Write back cache fixes (Christoph)

   - MD updates via Song:
      - Fix perf regression for raid0 large sequential writes (Jan)
      - Fix split bio iostat for raid0 (David)
      - Various raid1 fixes (Heinz, Xueshi)
      - raid6test build fixes (WANG)
      - Deprecate bitmap file support (Christoph)
      - Fix deadlock with md sync thread (Yu)
      - Refactor md io accounting (Yu)
      - Various non-urgent fixes (Li, Yu, Jack)

   - Various fixes and cleanups (Arnd, Azeem, Chengming, Damien, Li,
     Ming, Nitesh, Ruan, Tejun, Thomas, Xu)"

* tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux: (113 commits)
  block: use strscpy() to instead of strncpy()
  block: sed-opal: keyring support for SED keys
  block: sed-opal: Implement IOC_OPAL_REVERT_LSP
  block: sed-opal: Implement IOC_OPAL_DISCOVERY
  blk-mq: prealloc tags when increase tagset nr_hw_queues
  blk-mq: delete redundant tagset map update when fallback
  blk-mq: fix tags leak when shrink nr_hw_queues
  ublk: zoned: support REQ_OP_ZONE_RESET_ALL
  md: raid0: account for split bio in iostat accounting
  md/raid0: Fix performance regression for large sequential writes
  md/raid0: Factor out helper for mapping and submitting a bio
  md raid1: allow writebehind to work on any leg device set WriteMostly
  md/raid1: hold the barrier until handle_read_error() finishes
  md/raid1: free the r1bio before waiting for blocked rdev
  md/raid1: call free_r1bio() before allow_barrier() in raid_end_bio_io()
  blk-cgroup: Fix NULL deref caused by blkg_policy_data being installed before init
  drivers/rnbd: restore sysfs interface to rnbd-client
  md/raid5-cache: fix null-ptr-deref for r5l_flush_stripe_to_raid()
  raid6: test: only check for Altivec if building on powerpc hosts
  raid6: test: make sure all intermediate and artifact files are .gitignored
  ...

1 files changed, 4 insertions, 8 deletions

diff --git a/block/partitions/cmdline.c b/block/partitions/cmdline.c
index 1af610f0ba8c..c03bc105e575 100644
--- a/block/partitions/cmdline.c
+++ b/block/partitions/cmdline.c
@@ -81,8 +81,7 @@ static int parse_subpart(struct cmdline_subpart **subpart, char *partdef)
 
 		length = min_t(int, next - partdef,
 			       sizeof(new_subpart->name) - 1);
-		strncpy(new_subpart->name, partdef, length);
-		new_subpart->name[length] = '\0';
+		strscpy(new_subpart->name, partdef, length);
 
 		partdef = ++next;
 	} else
@@ -140,8 +139,7 @@ static int parse_parts(struct cmdline_parts **parts, const char *bdevdef)
 	}
 
 	length = min_t(int, next - bdevdef, sizeof(newparts->name) - 1);
-	strncpy(newparts->name, bdevdef, length);
-	newparts->name[length] = '\0';
+	strscpy(newparts->name, bdevdef, length);
 	newparts->nr_subparts = 0;
 
 	next_subpart = &newparts->subpart;
@@ -153,8 +151,7 @@ static int parse_parts(struct cmdline_parts **parts, const char *bdevdef)
 		length = (!next) ? (sizeof(buf) - 1) :
 			min_t(int, next - bdevdef, sizeof(buf) - 1);
 
-		strncpy(buf, bdevdef, length);
-		buf[length] = '\0';
+		strscpy(buf, bdevdef, length);
 
 		ret = parse_subpart(next_subpart, buf);
 		if (ret)
@@ -267,8 +264,7 @@ static int add_part(int slot, struct cmdline_subpart *subpart,
 
 	label_min = min_t(int, sizeof(info->volname) - 1,
 			  sizeof(subpart->name));
-	strncpy(info->volname, subpart->name, label_min);
-	info->volname[label_min] = '\0';
+	strscpy(info->volname, subpart->name, label_min);
 
 	snprintf(tmp, sizeof(tmp), "(%s)", info->volname);
 	strlcat(state->pp_buf, tmp, PAGE_SIZE);