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BUG: KCSAN: data-race in __ext4_update_other_inode_time / d_instantiate_new

write to 0xffff888124920340 of 8 bytes by task 19513 on cpu 1:
 d_instantiate_new+0x99/0xe0 fs/dcache.c:2057
 ext4_add_nondir+0x15e/0x180 fs/ext4/namei.c:2714
 ext4_symlink+0x4a5/0x6f0 fs/ext4/namei.c:3363
 vfs_symlink+0x18a/0x280 fs/namei.c:4297
 do_symlinkat+0xe2/0x330 fs/namei.c:4326
 __do_sys_symlinkat fs/namei.c:4343 [inline]
 __se_sys_symlinkat fs/namei.c:4340 [inline]
 __x64_sys_symlinkat+0x5e/0x70 fs/namei.c:4340
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888124920340 of 8 bytes by task 19517 on cpu 0:
 inode_is_dirtytime_only include/linux/fs.h:2343 [inline]
 __ext4_update_other_inode_time+0x45/0x540 fs/ext4/inode.c:5047
 ext4_update_other_inodes_time fs/ext4/inode.c:5090 [inline]
 ext4_do_update_inode fs/ext4/inode.c:5139 [inline]
 ext4_mark_iloc_dirty+0x4c6/0x860 fs/ext4/inode.c:5724
 __ext4_mark_inode_dirty+0x452/0x610 fs/ext4/inode.c:5920
 ext4_dirty_inode+0x86/0xa0 fs/ext4/inode.c:5949
 __mark_inode_dirty+0x70/0x5f0 fs/fs-writeback.c:2367
 mark_inode_dirty include/linux/fs.h:2324 [inline]
 generic_write_end+0x168/0x230 fs/buffer.c:2199
 ext4_da_write_end+0x26c/0x620 fs/ext4/inode.c:3068
 generic_perform_write+0x26a/0x3f0 mm/filemap.c:3798
 ext4_buffered_write_iter+0x222/0x330 fs/ext4/file.c:270
 ext4_file_write_iter+0x2e3/0x1210
 call_write_iter include/linux/fs.h:2050 [inline]
 new_sync_write fs/read_write.c:504 [inline]
 vfs_write+0x71c/0x890 fs/read_write.c:591
 ksys_write+0xe8/0x1a0 fs/read_write.c:644
 __do_sys_write fs/read_write.c:656 [inline]
 __se_sys_write fs/read_write.c:653 [inline]
 __x64_sys_write+0x3e/0x50 fs/read_write.c:653
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0000000000008008 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 19517 Comm: syz-executor.2 Not tainted 5.18.0-rc5-syzkaller-00207-g379c72654524 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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