linux-kernel - Re: linux-next: build failure after merge of the btrfs-fixes tree

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Message-ID: <33551776-18b2-4279-96c0-b7d1aadc0319@suse.com>
Date: Wed, 21 Jan 2026 10:03:05 +1030
From: Qu Wenruo <wqu@...e.com>
To: dsterba@...e.cz, Mark Brown <broonie@...nel.org>
Cc: Boris Burkov <boris@....io>,
 Johannes Thumshirn <johannes.thumshirn@....com>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the btrfs-fixes tree



在 2026/1/21 02:48, David Sterba 写道:
> On Tue, Jan 20, 2026 at 12:07:58PM +0000, Mark Brown wrote:
>> Hi all,
>>
>> After merging the btrfs-fixes tree, today's linux-next build
>> (arm64 defconfig) failed like this:
>>
>> /tmp/next/build/fs/btrfs/free-space-tree.c: In function 'btrfs_delete_orphan_free_space_entries':
>> /tmp/next/build/fs/btrfs/free-space-tree.c:1765:9: error: implicit declaration of function 'BTRFS_PATH_AUTO_RELEASE'; did you mean 'BTRFS_PATH_AUTO_FREE'? [-Wimplicit-function-declaration]
>>   1765 |         BTRFS_PATH_AUTO_RELEASE(path);
>>        |         ^~~~~~~~~~~~~~~~~~~~~~~
>>        |         BTRFS_PATH_AUTO_FREE
>> /tmp/next/build/fs/btrfs/free-space-tree.c:1765:33: error: 'path' undeclared (first use in this function)
>>   1765 |         BTRFS_PATH_AUTO_RELEASE(path);
>>        |                                 ^~~~
>> /tmp/next/build/fs/btrfs/free-space-tree.c:1765:33: note: each undeclared identifier is reported only once for each function it appears in
>> /tmp/next/build/fs/btrfs/free-space-tree.c:1817:1: error: control reaches end of non-void function [-Werror=return-type]
>>   1817 | }
>>        | ^
>> cc1: some warnings being treated as errors
>>
>> Caused by commit
>>
>>     7fcf8455f610b (btrfs: reject new transactions if the fs is fully read-only)
>>
>> I have used the version from 20260119 instead.
> 
> Sorry, I'll drop the patch from next-fixes.

Or should I update the patch to use traditional manual path releasing?

As this one may need to be backported for older kernels.

Thanks,
Qu