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

write to 0xffff88812b3d08c0 of 8 bytes by task 21208 on cpu 0:
 __mark_inode_dirty+0x1bc/0x6c0 fs/fs-writeback.c:2444
 generic_update_time fs/inode.c:1856 [inline]
 inode_update_time fs/inode.c:1869 [inline]
 touch_atime+0x1c4/0x2e0 fs/inode.c:1941
 pick_link fs/namei.c:1801 [inline]
 step_into+0x914/0xf70 fs/namei.c:1876
 open_last_lookups fs/namei.c:3423 [inline]
 path_openat+0xfa5/0x1f30 fs/namei.c:3606
 do_filp_open+0x105/0x220 fs/namei.c:3636
 do_sys_openat2+0xb5/0x2b0 fs/open.c:1214
 do_sys_open fs/open.c:1230 [inline]
 __do_sys_openat fs/open.c:1246 [inline]
 __se_sys_openat fs/open.c:1241 [inline]
 __x64_sys_openat+0xef/0x110 fs/open.c:1241
 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

read to 0xffff88812b3d08c0 of 8 bytes by task 21224 on cpu 1:
 __mark_inode_dirty+0xd7/0x6c0 fs/fs-writeback.c:2430
 generic_update_time fs/inode.c:1856 [inline]
 inode_update_time fs/inode.c:1869 [inline]
 touch_atime+0x1c4/0x2e0 fs/inode.c:1941
 pick_link fs/namei.c:1801 [inline]
 step_into+0x914/0xf70 fs/namei.c:1876
 open_last_lookups fs/namei.c:3423 [inline]
 path_openat+0xfa5/0x1f30 fs/namei.c:3606
 do_filp_open+0x105/0x220 fs/namei.c:3636
 do_sys_openat2+0xb5/0x2b0 fs/open.c:1214
 do_sys_open fs/open.c:1230 [inline]
 __do_sys_openat fs/open.c:1246 [inline]
 __se_sys_openat fs/open.c:1241 [inline]
 __x64_sys_openat+0xef/0x110 fs/open.c:1241
 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: 0x0000000000000000 -> 0x0000000000000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 21224 Comm: syz-executor.5 Not tainted 5.17.0-rc8-syzkaller-00072-g97e9c8eb4bb1-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================