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BUG: KCSAN: data-race in __ext4_handle_dirty_metadata / jbd2_journal_commit_transaction

write to 0xffff88814458f800 of 8 bytes by task 4810 on cpu 1:
 jbd2_journal_commit_transaction+0x228/0x3290 fs/jbd2/commit.c:443
 kjournald2+0x263/0x480 fs/jbd2/journal.c:213
 kthread+0x20b/0x230 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

read to 0xffff88814458f800 of 8 bytes by task 8410 on cpu 0:
 is_journal_aborted include/linux/jbd2.h:1647 [inline]
 is_handle_aborted include/linux/jbd2.h:1654 [inline]
 __ext4_handle_dirty_metadata+0x11a/0x590 fs/ext4/ext4_jbd2.c:333
 ext4_do_update_inode fs/ext4/inode.c:5141 [inline]
 ext4_mark_iloc_dirty+0x12f2/0x16f0 fs/ext4/inode.c:5724
 ext4_orphan_add+0x3f0/0x5f0 fs/ext4/namei.c:3001
 __ext4_unlink+0x4bc/0x6c0 fs/ext4/namei.c:3249
 ext4_unlink+0x1f1/0x3f0 fs/ext4/namei.c:3285
 vfs_unlink+0x24a/0x3e0 fs/namei.c:4029
 do_unlinkat+0x29f/0x4f0 fs/namei.c:4096
 __do_sys_unlink fs/namei.c:4143 [inline]
 __se_sys_unlink fs/namei.c:4141 [inline]
 __x64_sys_unlink+0x2c/0x30 fs/namei.c:4141
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 8410 Comm: syz-executor.5 Not tainted 5.12.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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