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Tue, 03 Feb 2026 09:24:28 -0800 (PST) From: Adarsh Das To: Chris Mason , David Sterba Cc: linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, Adarsh Das Subject: [PATCH 2/2] btrfs: replace BUG() with error handling in __btrfs_balance() Date: Tue, 3 Feb 2026 22:53:57 +0530 Message-ID: <20260203172357.65383-3-adarshdas950@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260203172357.65383-1-adarshdas950@gmail.com> References: <20260203172357.65383-1-adarshdas950@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" We search with offset (u64)-1 which should never match exactly. Previously this was handled with BUG(). Now logs an error and return -EUCLEAN. Signed-off-by: Adarsh Das --- fs/btrfs/volumes.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 8a08412f3529..0e1cc0c4ce68 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -4112,8 +4112,14 @@ static int __btrfs_balance(struct btrfs_fs_info *fs_= info) * this shouldn't happen, it means the last relocate * failed */ - if (ret =3D=3D 0) - BUG(); /* FIXME break ? */ + if (unlikely(ret =3D=3D 0)) { + btrfs_err(fs_info, + "unexpected exact match in chunk tree search, offset 0x%llx", + key.offset); + mutex_unlock(&fs_info->reclaim_bgs_lock); + ret =3D -EUCLEAN; + goto error; + } =20 ret =3D btrfs_previous_item(chunk_root, path, 0, BTRFS_CHUNK_ITEM_KEY); --=20 2.53.0