linux-kernel - Re: [syzbot] WARNING in mntput_no

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Message-ID: <000000000000ebd11505df01e597@google.com>
Date:   Sat, 14 May 2022 17:22:08 -0700
From:   syzbot <syzbot+5b1e53987f858500ec00@...kaller.appspotmail.com>
To:     hdanton@...a.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] WARNING in mntput_no_expire (3)

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

fs/file_table.c:377:22: error: implicit declaration of function 'real_mount'; did you mean 'kern_mount'? [-Werror=implicit-function-declaration]
fs/file_table.c:378:16: error: implicit declaration of function 'mnt_get_count'; did you mean 'init_page_count'? [-Werror=implicit-function-declaration]
fs/file_table.c:380:13: error: invalid use of undefined type 'struct mount'

Tested on:

commit:         feb9c5e1 Merge tag 'for_linus' of git://git.kernel.org..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
dashboard link: https://syzkaller.appspot.com/bug?extid=5b1e53987f858500ec00
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16788769f00000