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author | Zhang Yanfei <zhangyanfei@cn.fujitsu.com> | 2013-03-28 12:15:35 +0400 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-29 20:17:22 +0400 |
commit | eca4549f57a19f8881dcd7b9cef719b3452003c0 (patch) | |
tree | e7b156e0d7c9344337263ed81d683d15203b08fa /Documentation/ABI | |
parent | 6ae07f27ab202069bd567967a0099070eb7f77d5 (diff) | |
download | linux-eca4549f57a19f8881dcd7b9cef719b3452003c0.tar.xz |
sysfs: Add crash_notes_size to export percpu note size
For percpu notes, we are exporting only address and not size. So
the userspace tool kexec-tools is putting an upper limit of 1024
and putting the value in p_memsz and p_filesz fields. So the patch
add the new sysfile crash_notes_size to export the exact percpu
note size and let the kexec-tools parse it intead of using 1024.
The idea came from Vivek Goyal. And a later patch will be sent to
kexec-tools to let it parse the size.
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI')
0 files changed, 0 insertions, 0 deletions