]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
page-types: learn to describe flags directly from command line
authorAlex Chiang <achiang@hp.com>
Tue, 15 Dec 2009 01:57:52 +0000 (17:57 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 15 Dec 2009 16:53:11 +0000 (08:53 -0800)
commitdcfe730c60030fb76e2794a8960c6bd84c6c6163
treeb15402daa7b91950bd514322e6da677704231766
parentf1327bf18c8737aeb85226f02f102dfa065fddde
page-types: learn to describe flags directly from command line

Teach page-types to describe page flags directly from the command line.

Why is this useful?  For instance, if you're using memory hotplug and see
this in /var/log/messages:

kernel: removing from LRU failed 3836dd0/1/1e00000000000010

It would be nice to decode those page flags without staring at the source.

Example usage and output:

# Documentation/vm/page-types -d 0x10
0x0000000000000010 ____D_____________________________ dirty

# Documentation/vm/page-types -d anon
0x0000000000001000 ____________a_____________________ anonymous

# Documentation/vm/page-types -d anon,0x10
0x0000000000001010 ____D_______a_____________________ dirty,anonymous

[achiang@hp.com: documentation]
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Haicheng Li <haicheng.li@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/vm/page-types.c