==================================================================
BUG: KCSAN: data-race in jbd2_journal_dirty_metadata / jbd2_journal_dirty_metadata

write to 0xffff888107508a24 of 4 bytes by task 10445 on cpu 1:
 jbd2_journal_dirty_metadata+0x2df/0x670 fs/jbd2/transaction.c:1516
 __ext4_handle_dirty_metadata+0xc6/0x590 fs/ext4/ext4_jbd2.c:331
 __ext4_new_inode+0x10b2/0x3020 fs/ext4/ialloc.c:1121
 ext4_symlink+0x2c2/0x780 fs/ext4/namei.c:3336
 vfs_symlink+0x216/0x2d0 fs/namei.c:3961
 do_symlinkat+0xee/0x280 fs/namei.c:3988
 __do_sys_symlink fs/namei.c:4007 [inline]
 __se_sys_symlink fs/namei.c:4005 [inline]
 __x64_sys_symlink+0x32/0x40 fs/namei.c:4005
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888107508a24 of 4 bytes by task 10443 on cpu 0:
 jbd2_journal_dirty_metadata+0x15e/0x670 fs/jbd2/transaction.c:1484
 __ext4_handle_dirty_metadata+0xc6/0x590 fs/ext4/ext4_jbd2.c:331
 __ext4_new_inode+0x10b2/0x3020 fs/ext4/ialloc.c:1121
 ext4_create+0x17b/0x310 fs/ext4/namei.c:2613
 lookup_open fs/namei.c:3111 [inline]
 open_last_lookups fs/namei.c:3181 [inline]
 path_openat+0xcbe/0x2050 fs/namei.c:3367
 do_filp_open+0xbd/0x1d0 fs/namei.c:3397
 do_sys_openat2+0xa3/0x250 fs/open.c:1178
 do_sys_open fs/open.c:1194 [inline]
 __do_sys_open fs/open.c:1202 [inline]
 __se_sys_open fs/open.c:1198 [inline]
 __x64_sys_open+0xe2/0x110 fs/open.c:1198
 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: 10443 Comm: syz-executor.4 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================