Thanks for your reply. There are so many contents in /proc/pid/maps, and usually only a very small minority of those are about shared memory in address space of every process. So I hope that a new file maybe provide some convenience. Could you tell me how to get such information except analyzing 'maps' file?
-----Original Message----- From: David Rientjes [mailto:[email protected]] Sent: Thursday, August 09, 2012 5:10 AM To: Ren, Qiaowei Cc: Andrew Morton; Al Viro; Oleg Nesterov; Cyrill Gorcunov; Vasiliy Kulikov; Hugh Dickins; Naoya Horiguchi; Konstantin Khlebnikov; [email protected] Subject: Re: [PATCH 1/1] proc: add /proc/pid/shmaps On Wed, 8 Aug 2012, Qiaowei Ren wrote: > Add a shmaps entry to /proc/pid: show information about shared memory in an > address space. > > People that use shared memory and want to perform an analyzing about it. For > example, judge whether any memory address is shared. This file just contains > 'share' part of /proc/pid/maps now. There are too many contents in maps, and > so we have to do a lot of analysis to obtain relative information every time. > > Signed-off-by: Qiaowei Ren <[email protected]> Nack as unnecessary; /proc/pid/maps already explicitly emits 's' for VM_MAYSHARE and 'p' otherwise so this information is already available to userspace. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
