Re: [PATCH v2] hvc_console: Fix race between hvc_close and hvc_remove

On (Wed) Mar 03 2010 [15:55:22], Alan Cox wrote: > On Wed, 3 Mar 2010 20:59:48 +0530 > Amit Shah wrote: > > > Alan pointed out a race in the code where hvc_remove is invoked. The > > recent virtio_console work is the first user of hvc_remove(). > > Looks better to me. Thanks, Alan. Ben, can y

Re: [Patch v.2] mpc5200b/uart: improve baud rate calculation (reach high baud rates, better accuracy)

Hi Albrecht, I like this version much better. Comments below... On Wed, Mar 3, 2010 at 11:23 AM, Albrecht Dreß wrote: > On the MPC5200B, make very high baud rates (e.g. 3 MBaud) accessible and > achieve a higher precision for high baud rates in general.  This is done by > selecting the approp

[Patch v.2] mpc5200b/uart: improve baud rate calculation (reach high baud rates, better accuracy)

On the MPC5200B, make very high baud rates (e.g. 3 MBaud) accessible and achieve a higher precision for high baud rates in general. This is done by selecting the appropriate prescaler (/4 or /32). As to keep the code clean, the getuartclk method has been dropped, and all calculations are done wit

[PATCH] gianfar: Fix TX ring processing on SMP machines

Starting with commit a3bc1f11e9b867a4f49505 ("gianfar: Revive SKB recycling") gianfar driver sooner or later stops transmitting any packets on SMP machines. start_xmit() prepares new skb for transmitting, generally it does three things: 1. sets up all BDs (marks them ready to send), except the fi

[RFC] powerpc: add support for new hcall H_BEST_ENERGY

Hi, A new hypervisor call H_BEST_ENERGY is supported in IBM pseries ppc64 platform in order to exports platform energy management capabilities to user space administrative tools. This hypervisor calls provides hints or suggested list of cpus to activate or deactivate for optimized energy manageme

Re: [PATCH v2] hvc_console: Fix race between hvc_close and hvc_remove

On Wed, 3 Mar 2010 20:59:48 +0530 Amit Shah wrote: > Alan pointed out a race in the code where hvc_remove is invoked. The > recent virtio_console work is the first user of hvc_remove(). Looks better to me. Alan ___ Linuxppc-dev mailing list Linuxppc-

[PATCH v2] hvc_console: Fix race between hvc_close and hvc_remove

Alan pointed out a race in the code where hvc_remove is invoked. The recent virtio_console work is the first user of hvc_remove(). Alan describes it thus: The hvc_console assumes that a close and remove call can't occur at the same time. In addition tty_hangup(tty) is problematic as tty_hangup i

Re: [PATCH 0/4] 8xx: Optimize TLB Miss code.

Heiko Schocher wrote on 2010/03/03 11:10:10: > > Hello Joakim, > > Joakim Tjernlund wrote: > > Heiko Schocher wrote on 2010/03/03 09:02:47: > [...] > >> Here the results: > >> (The first 4 rows are the results for the kernel without your patches, > >> the next 4 rows are the results for the kern

Re: [PATCH 0/4] 8xx: Optimize TLB Miss code.

Hello Joakim, Joakim Tjernlund wrote: > Heiko Schocher wrote on 2010/03/03 09:02:47: [...] >> Here the results: >> (The first 4 rows are the results for the kernel without your patches, >> the next 4 rows are the results for the kernel with your patches) >> >> make[1]: Entering directory `/home/

Re: [PATCH 0/4] 8xx: Optimize TLB Miss code.

> > Heiko Schocher wrote on 2010/03/03 09:02:47: > > > > Hello Joakim, > > > > I tried your 4 patches on a MPC855M based system: > > Thanks a lot for testing this for me! > > > > > -bash-3.2# cat /proc/cpuinfo > > processor : 0 > > cpu : 8xx > > clock : 66.00MHz > >

Re: [PATCH 0/4] 8xx: Optimize TLB Miss code.

Heiko Schocher wrote on 2010/03/03 09:02:47: > > Hello Joakim, > > I tried your 4 patches on a MPC855M based system: Thanks a lot for testing this for me! > > -bash-3.2# cat /proc/cpuinfo > processor : 0 > cpu : 8xx > clock : 66.00MHz > revision: 0.0 (pvr

Re: [PATCH 0/4] 8xx: Optimize TLB Miss code.

Hello Joakim, I tried your 4 patches on a MPC855M based system: -bash-3.2# cat /proc/cpuinfo processor : 0 cpu : 8xx clock : 66.00MHz revision: 0.0 (pvr 0050 ) bogomips: 8.25 timebase: 4125000 platform: TQM8xx model : T