Hi!
> > > Yes, and cpufreq governors too list available governosrs as space
> > > separated list.
> > > Maybe the "one value per file" rule was thought-of only after these
> > > were merged?
> >
> > For small numbers of things, like /sys/power/state, which was the first
> > file to use this
> On Fri, Mar 29, 2019 at 09:48:23AM +0100, Marek Behun wrote:
> > > pavel@amd:~/cip$ cat /sys/power/state
> > > freeze mem disk
> > > pavel@amd:~/cip$ cat /sys/class/leds/phy0-led/trigger
> > > none bluetooth-power rfkill-any rfkill-none kbd-scrolllock kbd-numlock
> > > kbd-capslock kbd-kanalock
On Fri, Mar 29, 2019 at 11:24:36AM +0100, Greg Kroah-Hartman wrote:
> On Fri, Mar 29, 2019 at 09:48:23AM +0100, Marek Behun wrote:
> > > pavel@amd:~/cip$ cat /sys/power/state
> > > freeze mem disk
> > > pavel@amd:~/cip$ cat /sys/class/leds/phy0-led/trigger
> > > none bluetooth-power rfkill-any
On Fri, Mar 29, 2019 at 09:48:23AM +0100, Marek Behun wrote:
> > pavel@amd:~/cip$ cat /sys/power/state
> > freeze mem disk
> > pavel@amd:~/cip$ cat /sys/class/leds/phy0-led/trigger
> > none bluetooth-power rfkill-any rfkill-none kbd-scrolllock kbd-numlock
> > kbd-capslock kbd-kanalock
> pavel@amd:~/cip$ cat /sys/power/state
> freeze mem disk
> pavel@amd:~/cip$ cat /sys/class/leds/phy0-led/trigger
> none bluetooth-power rfkill-any rfkill-none kbd-scrolllock kbd-numlock
> kbd-capslock kbd-kanalock kbd-shiftlock kbd-altgrlock kbd-ctrllock
> kbd-altlock kbd-shiftllock
On Fri 2019-03-29 07:22:53, Greg Kroah-Hartman wrote:
> On Fri, Mar 29, 2019 at 04:09:22AM +0100, Marek Behun wrote:
> > Hello Tejun and Greg,
> >
> > kernfs_fop_open/read/write allocates a buffer for the ->read, ->write,
> > or ->seq_read methods. This buffer is either preallocated or allocated
On Fri, Mar 29, 2019 at 07:51:07AM +0100, Marek Behun wrote:
> > If this is just for kernfs, and you have your own filesystem, sure, we
> > can probably do something here. But if this is for sysfs, no, you all
> > need to keep to the "one value per file" rule that we have there
> > please.
>
>
> If this is just for kernfs, and you have your own filesystem, sure, we
> can probably do something here. But if this is for sysfs, no, you all
> need to keep to the "one value per file" rule that we have there
> please.
Greg, the file satisfies the "one value per file" rule. That value is
the
On Fri, Mar 29, 2019 at 04:09:22AM +0100, Marek Behun wrote:
> Hello Tejun and Greg,
>
> kernfs_fop_open/read/write allocates a buffer for the ->read, ->write,
> or ->seq_read methods. This buffer is either preallocated or allocated
> on the spot, with minimum size being PAGE_SIZE, if
Hello Tejun and Greg,
kernfs_fop_open/read/write allocates a buffer for the ->read, ->write,
or ->seq_read methods. This buffer is either preallocated or allocated
on the spot, with minimum size being PAGE_SIZE, if ->atomic_write_len
is not given.
There is a question/problem currently in the
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