commit bbbfeac92beff40eb86c7f682a7f1395f9f0ae52
author Nathan Zimmer <nzimmer@sgi.com> Thu Feb 21 15:15:09 2013 -0800
committer Ingo Molnar <mingo@kernel.org> Fri Feb 22 10:27:25 2013 +0100
tree 80a9f7d32d7a9a7898349c6e6ca88a1a7c1edf13
parent cb152ff26717961b10d0888cd983ba284cb99cd1

sched: Fix /proc/sched_debug failure on very very large systems

On systems with 4096 cores attemping to read /proc/sched_debug
fails because we are trying to push all the data into a single
kmalloc buffer.

The issue is on these very large machines all the data will not
fit in 4mb.

A better solution is to not us the single_open mechanism but to
provide our own seq_operations and treat each cpu as an
individual record.

The output should be identical to the previous version.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>)
[ Whitespace fixlet]
[ Fix spello in comment]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>