Messages in this thread |  | | Date | Tue, 9 Jun 2015 11:20:09 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH 1/6] power: hibernate: Use separate messages for "Syncing filesystems" |
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On Mon 2015-06-08 16:23:24, Joe Perches wrote: > On Tue, 2015-06-09 at 01:35 +0200, Rafael J. Wysocki wrote: > > On Thursday, June 04, 2015 11:36:44 AM Joe Perches wrote: > > > Add the ability to see how long it takes to sync the filesystems > > > via the printk time mechanism. > > > > > > Start to standardize the printk "PM: doing something...done" > > > messages on two separate lines. > > > > Well, it would be good to say what problem this is attempting to fix. > > > > And while I understand the underlying concern, there is a merit in keeping > > each of these messages in one line (if everything goes well), so I'm wondering > > what about printing each of them in one go after the operation with a tail > > depending on the result? Like > > > > printk(KERN_INFO "PM: Syncing filesystems ... done\n"); > > > > on success or > > > > printk(KERN_INFO "PM: Syncing filesystems ... failed\n"); > > > > on failure? > > Maybe. > > I believe there are multi-second delays possible when > syncing the filesystems on things like usb memory sticks. > > I think the dmesg line count here isn't particularly important > and there's some small value in consistently presenting timing > information via dmesg timestamps when using 2 lines.
Hibernation is little special here, because that's what user actually sees, and because message interleaving is extremely unlikely there.
Unless you have a real problem with this, just let it be. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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