tree 64355093ab4f470e67a301fb53e7d078ad4000f9
parent 0a76fe8e50ee93a9d4a1badb1ec995852a6bcaf1
author Michal Schmidt <mschmidt@redhat.com> 1202290627 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1202323264 -0800

proc: loadavg reading race

The avenrun[] values are supposed to be protected by xtime_lock.
loadavg_read_proc does not use it.  Theoretically this may result in an
occasional glitch when the value read from /proc/loadavg would be as much
as 1<<11 times higher than it should be.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>