mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 21:51:40 +00:00
3e2e0d2c22
The arch_local_irq_save(), etc., routines are required to function as compiler barriers. They do, but it's subtle and requires knowing that the gcc builtin __insn_mtspr() is marked as a memory clobber. Provide a comment explaining the assumption. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> [ This came about from me wondering about the synchronization rules of __insn_mtspr() - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
---|---|---|
.. | ||
configs | ||
gxio | ||
include | ||
kernel | ||
kvm | ||
lib | ||
mm | ||
Kbuild | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |