Hi. On Thursday 05 July 2007 21:28:49 Rafael J. Wysocki wrote: > On Thursday, 5 July 2007 00:52, Nigel Cunningham wrote: > > On Thursday 05 July 2007 08:49:42 Pavel Machek wrote: > > > On Thu 2007-07-05 08:48:15, Nigel Cunningham wrote: > > > > On Thursday 05 July 2007 00:58:58 Rafael J. Wysocki wrote: > > > > > The syncing of filesystems from within the freezer in not needed for > > suspend > > > > to > > > > > RAM. Change freeze_processes() so that it doesn't execute sys_sync() > > and > > > > > introduce the "syncing" version of it to be called from the hibernation > > code > > > > > paths. > > > > > > > > > > Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx> > > > > > --- > > > > > include/linux/freezer.h | 14 ++++++++++++-- > > > > > kernel/power/disk.c | 2 +- > > > > > kernel/power/main.c | 6 ++++++ > > > > > kernel/power/process.c | 8 +++++--- > > > > > kernel/power/user.c | 2 +- > > > > > 5 files changed, 25 insertions(+), 7 deletions(-) > > > > > > > > Looks ok, except that I wonder if you want the following fragment. It > > looks to > > > > me (looking at rc6) like with this code, you'll currently call sys_sync > > twice > > > > when suspending to ram. Maybe I'm misreading it. Also, shouldn't it be > > done > > > > after taking the mutex? > > > > > > sys_sync() should be okay to call, mutex or not. > > > > Yeah. That wasn't my point, sorry. Calling sys_sync is pointless if you're > > going to fail to take the mutex. It makes more sense to know you've got it > > before you start doing things related to actually suspending. > > Well, that's a valid point, I'll move it under the mutex. Okee doke. > And why do you think it will be called twice? Hmm. Looking again now, I can't see why I thought that. Maybe I just hadn't had enough caffeine today at that stage :) Nigel -- See http://www.tuxonice.net for Howtos, FAQs, mailing lists, wiki and bugzilla info.
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