LWN: Comments on "3.4 Merge window part 2"

3.4 Merge window part 2

corbet — Thu, 29 Mar 2012 20:37:35 +0000

There were a number of ARM pulls (wow you have a lot of trees! :) that came in after I stopped looking for the week.

3.4 Merge window part 2

alecs1 — Thu, 29 Mar 2012 20:26:55 +0000

You'd have to use the option to get into this situation, in my understanding. Remember that Linus is very adverse to breaking existing programs, and this is my main assumption.

3.4 Merge window part 2

arnd — Thu, 29 Mar 2012 20:22:43 +0000

A few noteworthy things were merged for the ARM architecture just yesterday. I'm not sure if they got left out because they were buried under all the other patches, or because the list was made before they got merged.

These are the top three in my opinion:

* common struct clk: This has been worked on for years and finally got to the point where enough people can start using the version. Work is continuing in tree, but I expect a lot of conversions to this in v3.5, as a big step towards a single multiplatform kernel image. See also http://lwn.net/Articles/486841/

* Support for the Samsung Exynos5 platform, the first one supported upstream that is based on the ARM Cortex-A15

* Support for the Tegra3 chip from NVIDIA

3.4 Merge window part 2

kjp — Thu, 29 Mar 2012 19:28:12 +0000

By the way, thats for existing user client code we have to detect when the main gui process dies.

prctl(PR_SET_PDEATHSIG, SIGHUP);
if (getppid() == 1) /* parent died already? */
return 0;

3.4 Merge window part 2

kjp — Thu, 29 Mar 2012 19:25:56 +0000

Uhm, I'm not quite getting all the details on the PR_SET_CHILD_SUBREAPER thing. Is that going to break existing code that does:

if (getppid() == 1) /* parent died already? */

3.4 Merge window part 2

scientes — Thu, 29 Mar 2012 02:07:48 +0000

The "USB-attached Displaylink video adapters" driver, udl, is a second driver for hardware already supported by udlfb. The new driver support hot plugging, while the old can crash the host on unplug, among other things.