Merge tag 'for-6.3/block-2023-02-16' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - NVMe updates via Christoph:
      - Small improvements to the logging functionality (Amit Engel)
      - Authentication cleanups (Hannes Reinecke)
      - Cleanup and optimize the DMA mapping cod in the PCIe driver
        (Keith Busch)
      - Work around the command effects for Format NVM (Keith Busch)
      - Misc cleanups (Keith Busch, Christoph Hellwig)
      - Fix and cleanup freeing single sgl (Keith Busch)

 - MD updates via Song:
      - Fix a rare crash during the takeover process
      - Don't update recovery_cp when curr_resync is ACTIVE
      - Free writes_pending in md_stop
      - Change active_io to percpu

 - Updates to drbd, inching us closer to unifying the out-of-tree driver
   with the in-tree one (Andreas, Christoph, Lars, Robert)

 - BFQ update adding support for multi-actuator drives (Paolo, Federico,
   Davide)

 - Make brd compliant with REQ_NOWAIT (me)

 - Fix for IOPOLL and queue entering, fixing stalled IO waiting on
   timeouts (me)

 - Fix for REQ_NOWAIT with multiple bios (me)

 - Fix memory leak in blktrace cleanup (Greg)

 - Clean up sbitmap and fix a potential hang (Kemeng)

 - Clean up some bits in BFQ, and fix a bug in the request injection
   (Kemeng)

 - Clean up the request allocation and issue code, and fix some bugs
   related to that (Kemeng)

 - ublk updates and fixes:
      - Add support for unprivileged ublk (Ming)
      - Improve device deletion handling (Ming)
      - Misc (Liu, Ziyang)

 - s390 dasd fixes (Alexander, Qiheng)

 - Improve utility of request caching and fixes (Anuj, Xiao)

 - zoned cleanups (Pankaj)

 - More constification for kobjs (Thomas)

 - blk-iocost cleanups (Yu)

 - Remove bio splitting from drivers that don't need it (Christoph)

 - Switch blk-cgroups to use struct gendisk. Some of this is now
   incomplete as select late reverts were done. (Christoph)

 - Add bvec initialization helpers, and convert callers to use that
   rather than open-coding it (Christoph)

 - Misc fixes and cleanups (Jinke, Keith, Arnd, Bart, Li, Martin,
   Matthew, Ulf, Zhong)

* tag 'for-6.3/block-2023-02-16' of git://git.kernel.dk/linux: (169 commits)
  brd: use radix_tree_maybe_preload instead of radix_tree_preload
  block: use proper return value from bio_failfast()
  block: bio-integrity: Copy flags when bio_integrity_payload is cloned
  block: Fix io statistics for cgroup in throttle path
  brd: mark as nowait compatible
  brd: check for REQ_NOWAIT and set correct page allocation mask
  brd: return 0/-error from brd_insert_page()
  block: sync mixed merged request's failfast with 1st bio's
  Revert "blk-cgroup: pin the gendisk in struct blkcg_gq"
  Revert "blk-cgroup: pass a gendisk to blkg_lookup"
  Revert "blk-cgroup: delay blk-cgroup initialization until add_disk"
  Revert "blk-cgroup: delay calling blkcg_exit_disk until disk_release"
  Revert "blk-cgroup: move the cgroup information to struct gendisk"
  nvme-pci: remove iod use_sgls
  nvme-pci: fix freeing single sgl
  block: ublk: check IO buffer based on flag need_get_data
  s390/dasd: Fix potential memleak in dasd_eckd_init()
  s390/dasd: sort out physical vs virtual pointers usage
  block: Remove the ALLOC_CACHE_SLACK constant
  block: make kobj_type structures constant
  ...

10 files changed, 38 insertions, 64 deletions

diff --git a/fs/afs/write.c b/fs/afs/write.c
index 19df10d63323..2d17891b618e 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -992,7 +992,7 @@ int afs_launder_folio(struct folio *folio)
 {
 	struct afs_vnode *vnode = AFS_FS_I(folio_inode(folio));
 	struct iov_iter iter;
-	struct bio_vec bv[1];
+	struct bio_vec bv;
 	unsigned long priv;
 	unsigned int f, t;
 	int ret = 0;
@@ -1008,10 +1008,8 @@ int afs_launder_folio(struct folio *folio)
 			t = afs_folio_dirty_to(folio, priv);
 		}
 
-		bv[0].bv_page = &folio->page;
-		bv[0].bv_offset = f;
-		bv[0].bv_len = t - f;
-		iov_iter_bvec(&iter, ITER_SOURCE, bv, 1, bv[0].bv_len);
+		bvec_set_folio(&bv, folio, t - f, f);
+		iov_iter_bvec(&iter, ITER_SOURCE, &bv, 1, bv.bv_len);
 
 		trace_afs_folio_dirty(vnode, tracepoint_string("launder"), folio);
 		ret = afs_store_data(vnode, &iter, folio_pos(folio) + f, true);
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index b5cff85925a1..5dcc62e678c4 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -103,14 +103,10 @@ static ssize_t __iter_get_bvecs(struct iov_iter *iter, size_t maxsize,
 		size += bytes;
 
 		for ( ; bytes; idx++, bvec_idx++) {
-			struct bio_vec bv = {
-				.bv_page = pages[idx],
-				.bv_len = min_t(int, bytes, PAGE_SIZE - start),
-				.bv_offset = start,
-			};
-
-			bvecs[bvec_idx] = bv;
-			bytes -= bv.bv_len;
+			int len = min_t(int, bytes, PAGE_SIZE - start);
+
+			bvec_set_page(&bvecs[bvec_idx], pages[idx], len, start);
+			bytes -= len;
 			start = 0;
 		}
 	}
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b2a04b4e89a5..e6088d96eb04 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -759,8 +759,9 @@ cifs_read_page_from_socket(struct TCP_Server_Info *server, struct page *page,
 	unsigned int page_offset, unsigned int to_read)
 {
 	struct msghdr smb_msg = {};
-	struct bio_vec bv = {
-		.bv_page = page, .bv_len = to_read, .bv_offset = page_offset};
+	struct bio_vec bv;
+
+	bvec_set_page(&bv, page, to_read, page_offset);
 	iov_iter_bvec(&smb_msg.msg_iter, ITER_DEST, &bv, 1, to_read);
 	return cifs_readv_from_socket(server, &smb_msg);
 }
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
index f6f3a6b75601..0911327ebfde 100644
--- a/fs/cifs/fscache.c
+++ b/fs/cifs/fscache.c
@@ -143,14 +143,12 @@ static int fscache_fallback_read_page(struct inode *inode, struct page *page)
 	struct netfs_cache_resources cres;
 	struct fscache_cookie *cookie = cifs_inode_cookie(inode);
 	struct iov_iter iter;
-	struct bio_vec bvec[1];
+	struct bio_vec bvec;
 	int ret;
 
 	memset(&cres, 0, sizeof(cres));
-	bvec[0].bv_page		= page;
-	bvec[0].bv_offset	= 0;
-	bvec[0].bv_len		= PAGE_SIZE;
-	iov_iter_bvec(&iter, ITER_DEST, bvec, ARRAY_SIZE(bvec), PAGE_SIZE);
+	bvec_set_page(&bvec, page, PAGE_SIZE, 0);
+	iov_iter_bvec(&iter, ITER_DEST, &bvec, 1, PAGE_SIZE);
 
 	ret = fscache_begin_read_operation(&cres, cookie);
 	if (ret < 0)
@@ -171,16 +169,14 @@ static int fscache_fallback_write_page(struct inode *inode, struct page *page,
 	struct netfs_cache_resources cres;
 	struct fscache_cookie *cookie = cifs_inode_cookie(inode);
 	struct iov_iter iter;
-	struct bio_vec bvec[1];
+	struct bio_vec bvec;
 	loff_t start = page_offset(page);
 	size_t len = PAGE_SIZE;
 	int ret;
 
 	memset(&cres, 0, sizeof(cres));
-	bvec[0].bv_page		= page;
-	bvec[0].bv_offset	= 0;
-	bvec[0].bv_len		= PAGE_SIZE;
-	iov_iter_bvec(&iter, ITER_SOURCE, bvec, ARRAY_SIZE(bvec), PAGE_SIZE);
+	bvec_set_page(&bvec, page, PAGE_SIZE, 0);
+	iov_iter_bvec(&iter, ITER_SOURCE, &bvec, 1, PAGE_SIZE);
 
 	ret = fscache_begin_write_operation(&cres, cookie);
 	if (ret < 0)
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 2a19c7987c5b..95cc4d7dd806 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -1054,9 +1054,8 @@ setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw)
 
 		for (i = 0; i < cur_npages; i++) {
 			len = rc > PAGE_SIZE ? PAGE_SIZE : rc;
-			bv[npages + i].bv_page = pages[i];
-			bv[npages + i].bv_offset = start;
-			bv[npages + i].bv_len = len - start;
+			bvec_set_page(&bv[npages + i], pages[i], len - start,
+				      start);
 			rc -= len;
 			start = 0;
 		}
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index e6bcd2baf446..cb2deac6b2d7 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -4598,9 +4598,9 @@ init_read_bvec(struct page **pages, unsigned int npages, unsigned int data_size,
 		return -ENOMEM;
 
 	for (i = 0; i < npages; i++) {
-		bvec[i].bv_page = pages[i];
-		bvec[i].bv_offset = (i == 0) ? cur_off : 0;
-		bvec[i].bv_len = min_t(unsigned int, PAGE_SIZE, data_size);
+		bvec_set_page(&bvec[i], pages[i],
+			      min_t(unsigned int, PAGE_SIZE, data_size),
+			      i == 0 ? cur_off : 0);
 		data_size -= bvec[i].bv_len;
 	}
 
diff --git a/fs/coredump.c b/fs/coredump.c
index 68619329ec65..a141dca68165 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -864,11 +864,7 @@ EXPORT_SYMBOL(dump_skip);
 #ifdef CONFIG_ELF_CORE
 static int dump_emit_page(struct coredump_params *cprm, struct page *page)
 {
-	struct bio_vec bvec = {
-		.bv_page	= page,
-		.bv_offset	= 0,
-		.bv_len		= PAGE_SIZE,
-	};
+	struct bio_vec bvec;
 	struct iov_iter iter;
 	struct file *file = cprm->file;
 	loff_t pos;
@@ -884,6 +880,7 @@ static int dump_emit_page(struct coredump_params *cprm, struct page *page)
 	if (dump_interrupted())
 		return 0;
 	pos = file->f_pos;
+	bvec_set_page(&bvec, page, PAGE_SIZE, 0);
 	iov_iter_bvec(&iter, ITER_SOURCE, &bvec, 1, PAGE_SIZE);
 	n = __kernel_write_iter(cprm->file, &iter, &pos);
 	if (n != PAGE_SIZE)
diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index e731c00a9fcb..ea5f2976dfab 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -245,14 +245,12 @@ static int fscache_fallback_read_page(struct inode *inode, struct page *page)
 	struct netfs_cache_resources cres;
 	struct fscache_cookie *cookie = nfs_i_fscache(inode);
 	struct iov_iter iter;
-	struct bio_vec bvec[1];
+	struct bio_vec bvec;
 	int ret;
 
 	memset(&cres, 0, sizeof(cres));
-	bvec[0].bv_page		= page;
-	bvec[0].bv_offset	= 0;
-	bvec[0].bv_len		= PAGE_SIZE;
-	iov_iter_bvec(&iter, ITER_DEST, bvec, ARRAY_SIZE(bvec), PAGE_SIZE);
+	bvec_set_page(&bvec, page, PAGE_SIZE, 0);
+	iov_iter_bvec(&iter, ITER_DEST, &bvec, 1, PAGE_SIZE);
 
 	ret = fscache_begin_read_operation(&cres, cookie);
 	if (ret < 0)
@@ -273,16 +271,14 @@ static int fscache_fallback_write_page(struct inode *inode, struct page *page,
 	struct netfs_cache_resources cres;
 	struct fscache_cookie *cookie = nfs_i_fscache(inode);
 	struct iov_iter iter;
-	struct bio_vec bvec[1];
+	struct bio_vec bvec;
 	loff_t start = page_offset(page);
 	size_t len = PAGE_SIZE;
 	int ret;
 
 	memset(&cres, 0, sizeof(cres));
-	bvec[0].bv_page		= page;
-	bvec[0].bv_offset	= 0;
-	bvec[0].bv_len		= PAGE_SIZE;
-	iov_iter_bvec(&iter, ITER_SOURCE, bvec, ARRAY_SIZE(bvec), PAGE_SIZE);
+	bvec_set_page(&bvec, page, PAGE_SIZE, 0);
+	iov_iter_bvec(&iter, ITER_SOURCE, &bvec, 1, PAGE_SIZE);
 
 	ret = fscache_begin_write_operation(&cres, cookie);
 	if (ret < 0)
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index 11e21a0e65ce..c036851a6efe 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -49,10 +49,8 @@ static int orangefs_writepage_locked(struct page *page,
 	/* Should've been handled in orangefs_invalidate_folio. */
 	WARN_ON(off == len || off + wlen > len);
 
-	bv.bv_page = page;
-	bv.bv_len = wlen;
-	bv.bv_offset = off % PAGE_SIZE;
 	WARN_ON(wlen == 0);
+	bvec_set_page(&bv, page, wlen, off % PAGE_SIZE);
 	iov_iter_bvec(&iter, ITER_SOURCE, &bv, 1, wlen);
 
 	ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, wlen,
@@ -102,15 +100,11 @@ static int orangefs_writepages_work(struct orangefs_writepages *ow,
 
 	for (i = 0; i < ow->npages; i++) {
 		set_page_writeback(ow->pages[i]);
-		ow->bv[i].bv_page = ow->pages[i];
-		ow->bv[i].bv_len = min(page_offset(ow->pages[i]) + PAGE_SIZE,
-		    ow->off + ow->len) -
-		    max(ow->off, page_offset(ow->pages[i]));
-		if (i == 0)
-			ow->bv[i].bv_offset = ow->off -
-			    page_offset(ow->pages[i]);
-		else
-			ow->bv[i].bv_offset = 0;
+		bvec_set_page(&ow->bv[i], ow->pages[i],
+			      min(page_offset(ow->pages[i]) + PAGE_SIZE,
+			          ow->off + ow->len) -
+			      max(ow->off, page_offset(ow->pages[i])),
+			      i == 0 ? ow->off - page_offset(ow->pages[i]) : 0);
 	}
 	iov_iter_bvec(&iter, ITER_SOURCE, ow->bv, ow->npages, ow->len);
 
@@ -300,9 +294,7 @@ static int orangefs_read_folio(struct file *file, struct folio *folio)
 		orangefs_launder_folio(folio);
 
 	off = folio_pos(folio);
-	bv.bv_page = &folio->page;
-	bv.bv_len = folio_size(folio);
-	bv.bv_offset = 0;
+	bvec_set_folio(&bv, folio, folio_size(folio), 0);
 	iov_iter_bvec(&iter, ITER_DEST, &bv, 1, folio_size(folio));
 
 	ret = wait_for_direct_io(ORANGEFS_IO_READ, inode, &off, &iter,
diff --git a/fs/splice.c b/fs/splice.c
index 5969b7a1d353..87d9b19349de 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -675,9 +675,8 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
 				goto done;
 			}
 
-			array[n].bv_page = buf->page;
-			array[n].bv_len = this_len;
-			array[n].bv_offset = buf->offset;
+			bvec_set_page(&array[n], buf->page, this_len,
+				      buf->offset);
 			left -= this_len;
 			n++;
 		}