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BUG: KMSAN: uninit-value in bch2_write_inode+0x9fa/0xf80 fs/bcachefs/fs.c:109
 bch2_write_inode+0x9fa/0xf80 fs/bcachefs/fs.c:109
 bch2_vfs_write_inode+0x8a/0x150 fs/bcachefs/fs.c:1835
 write_inode fs/fs-writeback.c:1525 [inline]
 __writeback_single_inode+0x8da/0x1290 fs/fs-writeback.c:1745
 writeback_sb_inodes+0xac4/0x1c90 fs/fs-writeback.c:1976
 wb_writeback+0x4df/0xcb0 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x40b/0x1940 fs/fs-writeback.c:2343
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3317
 worker_thread+0xea7/0x14f0 kernel/workqueue.c:3398
 kthread+0x6b9/0xef0 kernel/kthread.c:464
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Local variable io_opts.i117 created at:
 bch2_inode_rebalance_opts_get fs/bcachefs/inode.h:291 [inline]
 bch2_write_inode+0x696/0xf80 fs/bcachefs/fs.c:107
 bch2_vfs_write_inode+0x8a/0x150 fs/bcachefs/fs.c:1835

CPU: 0 UID: 0 PID: 3960 Comm: kworker/u8:20 Not tainted 6.13.0-syzkaller-10033-gd79bc8f79baa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: writeback wb_workfn (flush-bcachefs-12)
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