* switching "balance" into background
@ 2011-04-09 5:57 Helmut Hullen
2011-04-09 8:44 ` Hugo Mills
0 siblings, 1 reply; 3+ messages in thread
From: Helmut Hullen @ 2011-04-09 5:57 UTC (permalink / raw)
To: linux-btrfs
Hallo, linux-btrfs,
I can't switch a running "btrfs filesystem balance ..." via
ctrl z
bg
into the background, with other jobs this way works.
The stopping command "ctrl z" doesn't work.
(may be on other keyboards it's "ctrl y")
What goes wrong?
Viele Gruesse!
Helmut
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: switching "balance" into background
2011-04-09 5:57 switching "balance" into background Helmut Hullen
@ 2011-04-09 8:44 ` Hugo Mills
2011-04-09 9:04 ` Helmut Hullen
0 siblings, 1 reply; 3+ messages in thread
From: Hugo Mills @ 2011-04-09 8:44 UTC (permalink / raw)
To: helmut; +Cc: linux-btrfs
[-- Attachment #1: Type: text/plain, Size: 1037 bytes --]
On Sat, Apr 09, 2011 at 07:57:00AM +0200, Helmut Hullen wrote:
> Hallo, linux-btrfs,
>
> I can't switch a running "btrfs filesystem balance ..." via
>
> ctrl z
> bg
>
> into the background, with other jobs this way works.
>
> The stopping command "ctrl z" doesn't work.
>
> (may be on other keyboards it's "ctrl y")
>
> What goes wrong?
A balance is a single long-lived ioctl call, so the userspace
process is living in D state (uninterruptible sleep) until the kernel
finishes.
I've got a patch that forks the process, and runs the ioctl in the
background, returning immediately. I should be able to get it to the
list this weekend as part of the userspace side of the balance
management patches.
Hugo.
--
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: switching "balance" into background
2011-04-09 8:44 ` Hugo Mills
@ 2011-04-09 9:04 ` Helmut Hullen
0 siblings, 0 replies; 3+ messages in thread
From: Helmut Hullen @ 2011-04-09 9:04 UTC (permalink / raw)
To: linux-btrfs
Hallo, Hugo,
Du meintest am 09.04.11:
>> I can't switch a running "btrfs filesystem balance ..." via
>>
>> ctrl z
>> bg
>>
>> into the background,
[...]
> I've got a patch that forks the process, and runs the ioctl in the
> background, returning immediately. I should be able to get it to the
> list this weekend as part of the userspace side of the balance
> management patches.
Sounds fine - thank you!
Viele Gruesse!
Helmut
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-04-09 5:57 switching "balance" into background Helmut Hullen
2011-04-09 8:44 ` Hugo Mills
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