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WARNING: lock held when returning to user space!
6.11.0-rc3-next-20240814-syzkaller #0 Not tainted
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syz.1.976/9795 is leaving the kernel with locks still held!
1 lock held by syz.1.976/9795:
 #0: ffff8880631befe8 (&fi->i_gc_rwsem[READ]){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2196 [inline]
 #0: ffff8880631befe8 (&fi->i_gc_rwsem[READ]){+.+.}-{3:3}, at: f2fs_ioc_start_atomic_write+0x2ed/0xac0 fs/f2fs/file.c:2163