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BUG: KCSAN: data-race in __ext4_handle_dirty_metadata / jbd2_journal_update_sb_log_tail

read-write to 0xffff888103df7000 of 8 bytes by task 1405 on cpu 1:
 jbd2_journal_update_sb_log_tail+0x16e/0x1a0 fs/jbd2/journal.c:1695
 jbd2_journal_commit_transaction+0x22a/0x3180 fs/jbd2/commit.c:430
 kjournald2+0x253/0x460 fs/jbd2/journal.c:213
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

read to 0xffff888103df7000 of 8 bytes by task 7769 on cpu 0:
 is_journal_aborted include/linux/jbd2.h:1689 [inline]
 is_handle_aborted include/linux/jbd2.h:1696 [inline]
 __ext4_handle_dirty_metadata+0x138/0x470 fs/ext4/ext4_jbd2.c:352
 ext4_handle_dirty_dirblock+0x184/0x340 fs/ext4/namei.c:410
 add_dirent_to_buf+0x374/0x470 fs/ext4/namei.c:2141
 ext4_add_entry+0x3ce/0x1e50 fs/ext4/namei.c:2361
 ext4_add_nondir+0x50/0x180 fs/ext4/namei.c:2709
 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

value changed: 0x0000000000000038 -> 0x0000000000000230

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 7769 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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