Merge tag 'for-6.11-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

- fix double inode unlock for direct IO sync writes (reported by
syzbot)

- fix root tree id/name map definitions, don't use fixed size buffers
for name (reported by -Werror=unterminated-string-initialization)

- fix qgroup reserve leaks in bufferd write path

- update scrub status structure more often so it can be reported in
user space more accurately and let 'resume' not repeat work

- in preparation to remove space cache v1 in the future print a warning
if it's detected

* tag 'for-6.11-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: avoid using fixed char array size for tree names
btrfs: fix double inode unlock for direct IO sync writes
btrfs: emit a warning about space cache v1 being deprecated
btrfs: fix qgroup reserve leaks in cow_file_range
btrfs: implement launder_folio for clearing dirty page reserve
btrfs: scrub: update last_physical after scrubbing one stripe
btrfs: factor out stripe length calculation into a helper

fs/btrfs/file.c

···
 
 out_release_extents:
 	btrfs_release_log_ctx_extents(&ctx);
-	btrfs_inode_unlock(inode, BTRFS_ILOCK_MMAP);
+	if (skip_ilock)
+		up_write(&inode->i_mmap_lock);
+	else
+		btrfs_inode_unlock(inode, BTRFS_ILOCK_MMAP);
 	goto out;
 }
 

fs/btrfs/inode.c

···
 					     locked_page, &cached,
 					     clear_bits,
 					     page_ops);
+		btrfs_qgroup_free_data(inode, NULL, start, cur_alloc_size, NULL);
 		start += cur_alloc_size;
 	}
 
···
 		clear_bits |= EXTENT_CLEAR_DATA_RESV;
 		extent_clear_unlock_delalloc(inode, start, end, locked_page,
 					     &cached, clear_bits, page_ops);
+		btrfs_qgroup_free_data(inode, NULL, start, cur_alloc_size, NULL);
 	}
 	return ret;
 }
···
 					     EXTENT_DO_ACCOUNTING, PAGE_UNLOCK |
 					     PAGE_START_WRITEBACK |
 					     PAGE_END_WRITEBACK);
+		btrfs_qgroup_free_data(inode, NULL, cur_offset, end - cur_offset + 1, NULL);
 	}
 	btrfs_free_path(path);
 	return ret;
···
 	spin_unlock_irq(&subpage->lock);
 }
 
+static int btrfs_launder_folio(struct folio *folio)
+{
+	return btrfs_qgroup_free_data(folio_to_inode(folio), NULL, folio_pos(folio),
+				      PAGE_SIZE, NULL);
+}
+
 static bool __btrfs_release_folio(struct folio *folio, gfp_t gfp_flags)
 {
 	if (try_release_extent_mapping(&folio->page, gfp_flags)) {
···
 	.writepages	= btrfs_writepages,
 	.readahead	= btrfs_readahead,
 	.invalidate_folio = btrfs_invalidate_folio,
+	.launder_folio	= btrfs_launder_folio,
 	.release_folio	= btrfs_release_folio,
 	.migrate_folio	= btrfs_migrate_folio,
 	.dirty_folio	= filemap_dirty_folio,

fs/btrfs/print-tree.c

···
 
 struct root_name_map {
 	u64 id;
-	char name[16];
+	const char *name;
 };
 
 static const struct root_name_map root_map[] = {

fs/btrfs/scrub.c

···
 	}
 }
 
+static u32 stripe_length(const struct scrub_stripe *stripe)
+{
+	ASSERT(stripe->bg);
+
+	return min(BTRFS_STRIPE_LEN,
+		   stripe->bg->start + stripe->bg->length - stripe->logical);
+}
+
 static void scrub_submit_extent_sector_read(struct scrub_ctx *sctx,
 					    struct scrub_stripe *stripe)
 {
 	struct btrfs_fs_info *fs_info = stripe->bg->fs_info;
 	struct btrfs_bio *bbio = NULL;
-	unsigned int nr_sectors = min(BTRFS_STRIPE_LEN, stripe->bg->start +
-				      stripe->bg->length - stripe->logical) >>
-				  fs_info->sectorsize_bits;
+	unsigned int nr_sectors = stripe_length(stripe) >> fs_info->sectorsize_bits;
 	u64 stripe_len = BTRFS_STRIPE_LEN;
 	int mirror = stripe->mirror_num;
 	int i;
···
 {
 	struct btrfs_fs_info *fs_info = sctx->fs_info;
 	struct btrfs_bio *bbio;
-	unsigned int nr_sectors = min(BTRFS_STRIPE_LEN, stripe->bg->start +
-				      stripe->bg->length - stripe->logical) >>
-				  fs_info->sectorsize_bits;
+	unsigned int nr_sectors = stripe_length(stripe) >> fs_info->sectorsize_bits;
 	int mirror = stripe->mirror_num;
 
 	ASSERT(stripe->bg);
···
 		stripe = &sctx->stripes[i];
 
 		wait_scrub_stripe_io(stripe);
+		spin_lock(&sctx->stat_lock);
+		sctx->stat.last_physical = stripe->physical + stripe_length(stripe);
+		spin_unlock(&sctx->stat_lock);
 		scrub_reset_stripe(stripe);
 	}
 out:
···
 					 cur_physical, &found_logical);
 		if (ret > 0) {
 			/* No more extent, just update the accounting */
+			spin_lock(&sctx->stat_lock);
 			sctx->stat.last_physical = physical + logical_length;
+			spin_unlock(&sctx->stat_lock);
 			ret = 0;
 			break;
 		}
···
 			stripe_logical += chunk_logical;
 			ret = scrub_raid56_parity_stripe(sctx, scrub_dev, bg,
 							 map, stripe_logical);
+			spin_lock(&sctx->stat_lock);
+			sctx->stat.last_physical = min(physical + BTRFS_STRIPE_LEN,
+						       physical_end);
+			spin_unlock(&sctx->stat_lock);
 			if (ret)
 				goto out;
 			goto next;

fs/btrfs/super.c

···
 		ret = false;
 
 	if (!test_bit(BTRFS_FS_STATE_REMOUNTING, &info->fs_state)) {
-		if (btrfs_raw_test_opt(*mount_opt, SPACE_CACHE))
+		if (btrfs_raw_test_opt(*mount_opt, SPACE_CACHE)) {
 			btrfs_info(info, "disk space caching is enabled");
+			btrfs_warn(info,
+"space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2");
+		}
 		if (btrfs_raw_test_opt(*mount_opt, FREE_SPACE_TREE))
 			btrfs_info(info, "using free-space-tree");
 	}