Re: [syzbot] [fuse?] WARNING in fuse_iomap_writeback_range

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+e8200299b0556976e13c@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+e8200299b0556976e13c@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         29b60c6c fuse: make fuse_backing_get() static
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git for-next
console output: https://syzkaller.appspot.com/x/log.txt?x=10e893f5580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ed58c7948fc7ee44
dashboard link: https://syzkaller.appspot.com/bug?extid=e8200299b0556976e13c
compiler:       Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1199a6c9580000

Note: testing is done by a robot and is best-effort only.