Re: [PATCH] fs: export emergency_sync

[Guenter Roeck]

On Tue, Jul 18, 2023 at 05:13:06PM -0500, Bill O'Donnell wrote:
> On Tue, Jul 18, 2023 at 09:45:40PM +0000, Rob Barnes wrote:
> > emergency_sync forces a filesystem sync in emergency situations.
> > Export this function so it can be used by modules.
> > 
> > Signed-off-by: Rob Barnes <robbarnes@xxxxxxxxxx>
> 
> Example of an emergency situation?

An example from existing code in
drivers/firmware/arm_scmi/scmi_power_control.c:

static inline void
scmi_request_forceful_transition(struct scmi_syspower_conf *sc)
{
        dev_dbg(sc->dev, "Serving forceful request:%d\n",
                sc->required_transition);

#ifndef MODULE
        emergency_sync();
#endif

Arguably emergency_sync() should also be called if the file is built
as module.

Either case, I think it would make sense to add an example to the commit
description.

Thanks,
Guenter