lkml.org 
[lkml]   [2014]   [Dec]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/3] mm: cma: introduce /proc/cmainfo
On 12/26/2014 6:39 AM, Stefan I. Strogin wrote:
> /proc/cmainfo contains a list of currently allocated CMA buffers for every
> CMA area when CONFIG_CMA_DEBUG is enabled.
>
> Format is:
>
> <base_phys_addr> - <end_phys_addr> (<size> kB), allocated by <PID>\
> (<command name>), latency <allocation latency> us
> <stack backtrace when the buffer had been allocated>
>
> Signed-off-by: Stefan I. Strogin <s.strogin@partner.samsung.com>
> ---
...
> +static int __init proc_cmainfo_init(void)
> +{
> + proc_create("cmainfo", S_IRUSR, NULL, &proc_cmainfo_operations);
> + return 0;
> +}
> +
> +module_init(proc_cmainfo_init);
> +#endif /* CONFIG_CMA_DEBUG */
>

This seems better suited to debugfs over procfs, especially since the
option can be turned off. It would be helpful to break it
down by cma region as well to make it easier on systems with a lot
of regions.

Thanks,
Laura

--
Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project


\
 
 \ /
  Last update: 2014-12-29 22:21    [W:0.222 / U:0.736 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site