Re: [RFC][PATCH 1/2] vfs: allow /proc/pid/maps to return a custom device
From: Mark Fasheh <hidden>
Date: 2011-05-19 20:18:26
Also in:
linux-fsdevel
From: Mark Fasheh <hidden>
Date: 2011-05-19 20:18:26
Also in:
linux-fsdevel
On Sat, May 14, 2011 at 08:06:04PM -0700, Eric W. Biederman wrote:
Mark Fasheh [off-list ref] writes:quoted
This patch introduces a callback in the super_operations structure, 'get_maps_dev' which is then used by procfs to query which device to return for reporting in /proc/[PID]/maps.No. It may make sense to call the vfs stat method. But introducing an extra vfs operations for this seems like a maintenance nightmare.
Yeah I'm not thrilled with the extra method either. My concern with using ->getattr is whether it's too heavy since that implies potential disk / network i/o. --Mark -- Mark Fasheh