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BUG: KCSAN: data-race in __ext4_update_other_inode_time / inode_io_list_del

write to 0xffff888106fdb418 of 8 bytes by task 1779 on cpu 0:
 inode_io_list_del+0xc9/0x2a0 fs/fs-writeback.c:1270
 evict+0xac/0x3c0 fs/inode.c:571
 iput_final fs/inode.c:1660 [inline]
 iput+0x430/0x580 fs/inode.c:1686
 do_unlinkat+0x293/0x4f0 fs/namei.c:4109
 __do_sys_unlink fs/namei.c:4149 [inline]
 __se_sys_unlink fs/namei.c:4147 [inline]
 __x64_sys_unlink+0x2c/0x30 fs/namei.c:4147
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888106fdb418 of 8 bytes by task 8856 on cpu 1:
 inode_is_dirtytime_only include/linux/fs.h:2422 [inline]
 __ext4_update_other_inode_time+0x48/0x5c0 fs/ext4/inode.c:4963
 ext4_update_other_inodes_time fs/ext4/inode.c:5006 [inline]
 ext4_do_update_inode fs/ext4/inode.c:5135 [inline]
 ext4_mark_iloc_dirty+0x12b6/0x1750 fs/ext4/inode.c:5724
 __ext4_mark_inode_dirty+0x4db/0x5b0 fs/ext4/inode.c:5918
 ext4_dirty_inode+0x86/0xa0 fs/ext4/inode.c:5947
 __mark_inode_dirty+0x77/0x680 fs/fs-writeback.c:2398
 mark_inode_dirty_sync include/linux/fs.h:2408 [inline]
 dquot_free_space include/linux/quotaops.h:382 [inline]
 dquot_free_block include/linux/quotaops.h:392 [inline]
 ext4_free_blocks+0x15a3/0x1b50 fs/ext4/mballoc.c:6012
 ext4_remove_blocks+0x61a/0x800 fs/ext4/extents.c:2502
 ext4_ext_rm_leaf+0x670/0xd20 fs/ext4/extents.c:2668
 ext4_ext_remove_space+0x901/0x1300 fs/ext4/extents.c:2916
 ext4_ext_truncate+0xfe/0x170 fs/ext4/extents.c:4377
 ext4_truncate+0x76e/0xa80 fs/ext4/inode.c:4262
 ext4_evict_inode+0xa54/0xdb0 fs/ext4/inode.c:288
 evict+0x1c8/0x3c0 fs/inode.c:584
 iput_final fs/inode.c:1660 [inline]
 iput+0x430/0x580 fs/inode.c:1686
 dentry_unlink_inode+0x23a/0x260 fs/dcache.c:376
 d_delete+0x78/0xe0 fs/dcache.c:2505
 vfs_rmdir+0x2a6/0x2c0 fs/namei.c:3919
 do_rmdir+0x14a/0x2e0 fs/namei.c:3968
 __do_sys_rmdir fs/namei.c:3986 [inline]
 __se_sys_rmdir fs/namei.c:3984 [inline]
 __x64_sys_rmdir+0x2c/0x30 fs/namei.c:3984
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0000000000000800 -> 0x0000000000000060

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 8856 Comm: syz-executor.5 Not tainted 5.14.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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