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BUG: KCSAN: data-race in ext4_fill_raw_inode / ext4_orphan_del

write to 0xffff88812789eb1c of 4 bytes by task 23554 on cpu 0:
 ext4_orphan_del+0x568/0x6f0 fs/ext4/orphan.c:296
 ext4_handle_inode_extension fs/ext4/file.c:353 [inline]
 ext4_dio_write_iter fs/ext4/file.c:573 [inline]
 ext4_file_write_iter+0x1020/0x1210 fs/ext4/file.c:677
 do_iter_readv_writev+0x27b/0x300
 do_iter_write+0x16f/0x5c0 fs/read_write.c:852
 vfs_iter_write+0x4c/0x70 fs/read_write.c:893
 iter_file_splice_write+0x44a/0x7c0 fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0x80/0xa0 fs/splice.c:936
 splice_direct_to_actor+0x345/0x660 fs/splice.c:891
 do_splice_direct+0xfb/0x180 fs/splice.c:979
 do_sendfile+0x3ad/0x900 fs/read_write.c:1246
 __do_sys_sendfile64 fs/read_write.c:1311 [inline]
 __se_sys_sendfile64 fs/read_write.c:1297 [inline]
 __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1297
 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 0xffff88812789eb1c of 4 bytes by task 1821 on cpu 1:
 ext4_fill_raw_inode+0x68c/0xea0 fs/ext4/inode.c:4368
 ext4_do_update_inode fs/ext4/inode.c:5131 [inline]
 ext4_mark_iloc_dirty+0x364/0x860 fs/ext4/inode.c:5724
 __ext4_mark_inode_dirty+0x452/0x610 fs/ext4/inode.c:5920
 __ext4_ext_dirty fs/ext4/extents.c:183 [inline]
 ext4_ext_rm_leaf+0x8c8/0xf30 fs/ext4/extents.c:2740
 ext4_ext_remove_space+0x86a/0x1470 fs/ext4/extents.c:2952
 ext4_ext_truncate+0x11c/0x1a0 fs/ext4/extents.c:4412
 ext4_truncate+0x74d/0xab0 fs/ext4/inode.c:4238
 ext4_evict_inode+0xa1d/0xe40 fs/ext4/inode.c:286
 evict+0x1aa/0x410 fs/inode.c:664
 iput_final fs/inode.c:1744 [inline]
 iput+0x3f9/0x580 fs/inode.c:1770
 d_delete_notify include/linux/fsnotify.h:261 [inline]
 vfs_rmdir+0x270/0x2f0 fs/namei.c:4030
 do_rmdir+0x178/0x300 fs/namei.c:4078
 __do_sys_unlinkat fs/namei.c:4258 [inline]
 __se_sys_unlinkat fs/namei.c:4252 [inline]
 __x64_sys_unlinkat+0xa0/0xb0 fs/namei.c:4252
 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: 0x00000499 -> 0x0000048c

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 1821 Comm: syz-executor.0 Tainted: G        W         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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