tree 17762cc0b140096e80e6ff509cc423f8e62db7e6
parent ae07b63f4b6728e1f98aa5c5416cfc1280f59f51
author Pierre Habouzit <pierre.habouzit@intersec.com> 1249647360 +0200
committer Ingo Molnar <mingo@elte.hu> 1249815279 +0200

perf util: Fix do_read() to fail on EOF instead of busy-looping

While toying with perf, I've noticed that perf record can
easily enter a busy loop when doing something as silly as:

    $ perf record -A ls

Yeah, do_read here really wants to read a known size, not being
able to should die(), not busy-loop ;)

That was the cause for the bug.

Signed-off-by: Pierre Habouzit <pierre.habouzit@intersec.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>