The patch below does not apply to the 5.17-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 62ed0bf7315b524973bb5fb9174b60e353289835 Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn johannes.thumshirn@wdc.com Date: Mon, 7 Mar 2022 02:47:18 -0800 Subject: [PATCH] btrfs: zoned: remove left over ASSERT checking for single profile

With commit dcf5652291f6 ("btrfs: zoned: allow DUP on meta-data block groups") we started allowing DUP on metadata block groups, so the ASSERT()s in btrfs_can_activate_zone() and btrfs_zoned_get_device() are no longer valid and in fact even harmful.

Fixes: dcf5652291f6 ("btrfs: zoned: allow DUP on meta-data block groups") CC: stable@vger.kernel.org # 5.17 Signed-off-by: Johannes Thumshirn johannes.thumshirn@wdc.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com

diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index 61125aec8723..1b1b310c3c51 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -1801,7 +1801,6 @@ struct btrfs_device *btrfs_zoned_get_device(struct btrfs_fs_info *fs_info,

map = em->map_lookup; /* We only support single profile for now */ - ASSERT(map->num_stripes == 1); device = map->stripes[0].dev;

free_extent_map(em); @@ -1983,9 +1982,6 @@ bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags) if (!btrfs_is_zoned(fs_info)) return true;

- /* Non-single profiles are not supported yet */ - ASSERT((flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) == 0); - /* Check if there is a device with active zones left */ mutex_lock(&fs_info->chunk_mutex); list_for_each_entry(device, &fs_devices->alloc_list, dev_alloc_list) {