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BUG: KCSAN: data-race in __ext4_update_other_inode_time / inode_io_list_del

write to 0xffff888105e60750 of 8 bytes by task 1757 on cpu 1:
 inode_io_list_del_locked fs/fs-writeback.c:148 [inline]
 inode_io_list_del+0x10c/0x2f0 fs/fs-writeback.c:1127
 evict+0xac/0x3c0 fs/inode.c:565
 iput_final fs/inode.c:1654 [inline]
 iput+0x433/0x590 fs/inode.c:1680
 dentry_unlink_inode+0x23a/0x260 fs/dcache.c:374
 d_delete+0x78/0xe0 fs/dcache.c:2503
 vfs_rmdir+0x2a6/0x2c0 fs/namei.c:3915
 do_rmdir+0x14a/0x2e0 fs/namei.c:3964
 __do_sys_rmdir fs/namei.c:3982 [inline]
 __se_sys_rmdir fs/namei.c:3980 [inline]
 __x64_sys_rmdir+0x2c/0x30 fs/namei.c:3980
 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888105e60750 of 8 bytes by task 7606 on cpu 0:
 inode_is_dirtytime_only include/linux/fs.h:2286 [inline]
 __ext4_update_other_inode_time+0x48/0x5c0 fs/ext4/inode.c:4965
 ext4_update_other_inodes_time fs/ext4/inode.c:5008 [inline]
 ext4_do_update_inode fs/ext4/inode.c:5137 [inline]
 ext4_mark_iloc_dirty+0x12e6/0x1750 fs/ext4/inode.c:5726
 __ext4_mark_inode_dirty+0x4db/0x5b0 fs/ext4/inode.c:5920
 __ext4_new_inode+0x2a20/0x2f10 fs/ext4/ialloc.c:1336
 ext4_symlink+0x2c3/0x700 fs/ext4/namei.c:3347
 vfs_symlink+0xbe/0x170 fs/namei.c:4178
 do_symlinkat+0xeb/0x280 fs/namei.c:4208
 __do_sys_symlink fs/namei.c:4229 [inline]
 __se_sys_symlink fs/namei.c:4227 [inline]
 __x64_sys_symlink+0x32/0x40 fs/namei.c:4227
 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 7606 Comm: syz-executor.5 Not tainted 5.12.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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