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BUG: KCSAN: data-race in __ext4_handle_dirty_metadata / jbd2_journal_update_sb_log_tail

write to 0xffff8881030c7000 of 8 bytes by task 1404 on cpu 1:
 jbd2_journal_update_sb_log_tail+0x176/0x1b0 fs/jbd2/journal.c:1689
 jbd2_journal_commit_transaction+0x21e/0x3460 fs/jbd2/commit.c:430
 kjournald2+0x263/0x480 fs/jbd2/journal.c:213
 kthread+0x2c7/0x2e0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

read to 0xffff8881030c7000 of 8 bytes by task 1846 on cpu 0:
 is_journal_aborted include/linux/jbd2.h:1695 [inline]
 is_handle_aborted include/linux/jbd2.h:1702 [inline]
 __ext4_handle_dirty_metadata+0x14f/0x5a0 fs/ext4/ext4_jbd2.c:350
 ext4_free_inode+0x852/0xa30 fs/ext4/ialloc.c:347
 ext4_evict_inode+0xbff/0xf10 fs/ext4/inode.c:332
 evict+0x1aa/0x410 fs/inode.c:592
 iput_final fs/inode.c:1672 [inline]
 iput+0x3ef/0x580 fs/inode.c:1698
 dentry_unlink_inode+0x23d/0x250 fs/dcache.c:376
 d_delete+0x78/0xa0 fs/dcache.c:2505
 vfs_rmdir+0x2bf/0x2e0 fs/namei.c:3982
 do_rmdir+0x18d/0x330 fs/namei.c:4030
 __do_sys_rmdir fs/namei.c:4049 [inline]
 __se_sys_rmdir fs/namei.c:4047 [inline]
 __x64_sys_rmdir+0x2c/0x30 fs/namei.c:4047
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 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: 1846 Comm: syz-executor.2 Tainted: G        W         5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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