Revert "[PATCH] i386: add idle notifier"
This reverts commit 2ff2d3d7 . Uwe Bugla reports that he cannot mount a floppy drive any more, and Jiri Slaby bisected it down to this commit. Benjamin LaHaise also points out that this is a big hot-path, and that interrupt delivery while idle is very common and should not go through all these expensive gyrations. Fix up conflicts in arch/i386/kernel/apic.c and arch/i386/kernel/irq.c due to other unrelated irq changes. Cc: Stephane Eranian <firstname.lastname@example.org> Cc: Andi Kleen <email@example.com> Cc: Andrew Morton <firstname.lastname@example.org> Cc: Uwe Bugla <email@example.com> Cc: Jiri Slaby <firstname.lastname@example.org> Signed-off-by: Linus Torvalds <email@example.com>