syzbot

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BUG: KCSAN: data-race in ext4_mark_iloc_dirty / ext4_mark_iloc_dirty

write to 0xffff88812e8c5ea8 of 4 bytes by task 4315 on cpu 1:
 ext4_update_inode_fsync_trans fs/ext4/ext4_jbd2.h:445 [inline]
 ext4_do_update_inode fs/ext4/inode.c:5114 [inline]
 ext4_mark_iloc_dirty+0x789/0x890 fs/ext4/inode.c:5677
 ext4_orphan_del+0x593/0x730 fs/ext4/orphan.c:297
 ext4_handle_inode_extension fs/ext4/file.c:351 [inline]
 ext4_dio_write_iter fs/ext4/file.c:571 [inline]
 ext4_file_write_iter+0x1124/0x11f0 fs/ext4/file.c:675
 call_write_iter include/linux/fs.h:2074 [inline]
 do_iter_readv_writev+0x2de/0x380 fs/read_write.c:725
 do_iter_write+0x192/0x5c0 fs/read_write.c:851
 vfs_iter_write+0x4c/0x70 fs/read_write.c:892
 iter_file_splice_write+0x43a/0x790 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+0x345/0x650 fs/splice.c:891
 do_splice_direct+0x106/0x190 fs/splice.c:979
 do_sendfile+0x675/0xc40 fs/read_write.c:1245
 __do_sys_sendfile64 fs/read_write.c:1310 [inline]
 __se_sys_sendfile64 fs/read_write.c:1296 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296
 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

write to 0xffff88812e8c5ea8 of 4 bytes by task 4300 on cpu 0:
 ext4_update_inode_fsync_trans fs/ext4/ext4_jbd2.h:445 [inline]
 ext4_do_update_inode fs/ext4/inode.c:5114 [inline]
 ext4_mark_iloc_dirty+0x789/0x890 fs/ext4/inode.c:5677
 __ext4_mark_inode_dirty+0x4ec/0x5f0 fs/ext4/inode.c:5873
 ext4_handle_inode_extension fs/ext4/file.c:330 [inline]
 ext4_dio_write_iter fs/ext4/file.c:571 [inline]
 ext4_file_write_iter+0x105e/0x11f0 fs/ext4/file.c:675
 call_write_iter include/linux/fs.h:2074 [inline]
 do_iter_readv_writev+0x2de/0x380 fs/read_write.c:725
 do_iter_write+0x192/0x5c0 fs/read_write.c:851
 vfs_iter_write+0x4c/0x70 fs/read_write.c:892
 iter_file_splice_write+0x43a/0x790 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+0x345/0x650 fs/splice.c:891
 do_splice_direct+0x106/0x190 fs/splice.c:979
 do_sendfile+0x675/0xc40 fs/read_write.c:1245
 __do_sys_sendfile64 fs/read_write.c:1310 [inline]
 __se_sys_sendfile64 fs/read_write.c:1296 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296
 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: 0x0000016c -> 0x0000016d

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 4300 Comm: syz-executor.2 Not tainted 5.17.0-rc2-syzkaller-00064-gc36c04c2e132 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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