tree 1f5cc6d5050af80b5015b536c8b4f4fe1b6dd3d5
parent 1c17d18e3775485bf1e0ce79575eb637a94494a2
author Jeff Garzik <jeff@garzik.org> 1202290571 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1202323260 -0800

riscom8: fix SMP brokenness

After analyzing the elements that save_flags/cli/sti/restore_flags were
protecting, convert their usages to a global spinlock (the easiest and
most obvious next-step).  There were some usages of flags being
intentionally cached, because the code already knew the state of
interrupts.  These have been taken into account.

This allows us to remove CONFIG_BROKEN_ON_SMP.  Completely untested.

[akpm@linux-foundation.org: use DEFINE_SPINLOCK]
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>