syzbot

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BUG: KCSAN: data-race in __writeback_single_inode / inode_io_list_del

write to 0xffff888132abc3f0 of 8 bytes by task 1827 on cpu 0:
 inode_io_list_del+0x62/0x200 fs/fs-writeback.c:1275
 evict+0xad/0x410 fs/inode.c:651
 iput_final fs/inode.c:1744 [inline]
 iput+0x3ef/0x580 fs/inode.c:1770
 d_delete_notify include/linux/fsnotify.h:261 [inline]
 vfs_rmdir+0x270/0x320 fs/namei.c:4032
 do_rmdir+0x18d/0x330 fs/namei.c:4080
 __do_sys_rmdir fs/namei.c:4099 [inline]
 __se_sys_rmdir fs/namei.c:4097 [inline]
 __x64_sys_rmdir+0x2c/0x30 fs/namei.c:4097
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888132abc3f0 of 8 bytes by task 26906 on cpu 1:
 __writeback_single_inode+0x10c/0x590 fs/fs-writeback.c:1638
 writeback_sb_inodes+0x677/0xdf0 fs/fs-writeback.c:1891
 wb_writeback+0x26b/0x650 fs/fs-writeback.c:2064
 wb_do_writeback+0x101/0x560 fs/fs-writeback.c:2207
 wb_workfn+0xc8/0x440 fs/fs-writeback.c:2248
 process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
 worker_thread+0x616/0xa70 kernel/workqueue.c:2454
 kthread+0x1bf/0x1e0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30

value changed: 0x0000000000020081 -> 0x00000000000000a1

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 26906 Comm: kworker/u4:42 Not tainted 5.17.0-rc6-syzkaller-00242-g0014404f9c18-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: writeback wb_workfn (flush-8:0)
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