From: Michael Holzheu Date: Mon, 9 Feb 2015 13:49:10 +0000 (+0100) Subject: s390/hypfs: Add diagnose 0c support X-Git-Tag: fixes-v4.0-rc1~134^2~2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=34c0dad752294f373a0720840f59e186788ba227;p=pandora-kernel.git s390/hypfs: Add diagnose 0c support With this feature, you can read the CPU performance metrics provided by the z/VM diagnose 0C. This then allows to get the management time for each online CPU of the guest where the diagnose is executed. The new debugfs file /sys/kernel/debug/s390_hypfs/diag_0c exports the diag0C binary data to user space via an open/read/close interface. The binary data consists out of a header structure followed by an array that contains the diagnose 0c data for each online CPU. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- Reading git-diff-tree failed