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From:   Johannes Thumshirn <johannes.thumshirn@wdc.com>
Date:   Thu, 14 Sep 2023 09:07:04 -0700
Subject: [PATCH v9 09/11] btrfs: announce presence of raid-stripe-tree in
 sysfs
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Message-Id: <20230914-raid-stripe-tree-v9-9-15d423829637@wdc.com>
References: <20230914-raid-stripe-tree-v9-0-15d423829637@wdc.com>
In-Reply-To: <20230914-raid-stripe-tree-v9-0-15d423829637@wdc.com>
To:     Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
        David Sterba <dsterba@suse.com>
Cc:     Christoph Hellwig <hch@lst.de>,
        Naohiro Aota <naohiro.aota@wdc.com>, Qu Wenruo <wqu@suse.com>,
        Damien Le Moal <dlemoal@kernel.org>,
        linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
        Johannes Thumshirn <johannes.thumshirn@wdc.com>
Precedence: bulk

If a filesystem with a raid-stripe-tree is mounted, show the RST feature
in sysfs.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 fs/btrfs/sysfs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index b1d1ac25237b..1bab3d7d251e 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -297,6 +297,8 @@ BTRFS_FEAT_ATTR_INCOMPAT(zoned, ZONED);
 #ifdef CONFIG_BTRFS_DEBUG
 /* Remove once support for extent tree v2 is feature complete */
 BTRFS_FEAT_ATTR_INCOMPAT(extent_tree_v2, EXTENT_TREE_V2);
+/* Remove once support for raid stripe tree is feature complete */
+BTRFS_FEAT_ATTR_INCOMPAT(raid_stripe_tree, RAID_STRIPE_TREE);
 #endif
 #ifdef CONFIG_FS_VERITY
 BTRFS_FEAT_ATTR_COMPAT_RO(verity, VERITY);
@@ -327,6 +329,7 @@ static struct attribute *btrfs_supported_feature_attrs[] = {
 #endif
 #ifdef CONFIG_BTRFS_DEBUG
 	BTRFS_FEAT_ATTR_PTR(extent_tree_v2),
+	BTRFS_FEAT_ATTR_PTR(raid_stripe_tree),
 #endif
 #ifdef CONFIG_FS_VERITY
 	BTRFS_FEAT_ATTR_PTR(verity),

-- 
2.41.0