The patch titled PREEMPT_ACTIVE: add default defines has been removed from the -mm tree. Its filename was preempt_active-add-default-defines.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: PREEMPT_ACTIVE: add default defines From: Arnd Bergmann <arnd@xxxxxxxx> The PREEMPT_ACTIVE setting doesn't actually need to be arch-specific, so set up a sane default for all arches to (hopefully) migrate to. > if we look at linux/hardirq.h, it makes this claim: > * - bit 28 is the PREEMPT_ACTIVE flag > if that's true, then why are we letting any arch set this define ? a > quick survey shows that half the arches (11) are using 0x10000000 (bit > 28) while the other half (10) are using 0x4000000 (bit 26). and then > there is the ia64 oddity which uses bit 30. the exact value here > shouldnt really matter across arches though should it ? actually alpha, arm and avr32 also use bit 30 (0x40000000), there are only five (or eight, depending on how you count) architectures (blackfin, h8300, m68k, s390 and sparc) using bit 26. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx> Acked-by: Ingo Molnar <mingo@xxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/hardirq.h | 6 ++++++ 1 file changed, 6 insertions(+) diff -puN include/linux/hardirq.h~preempt_active-add-default-defines include/linux/hardirq.h --- a/include/linux/hardirq.h~preempt_active-add-default-defines +++ a/include/linux/hardirq.h @@ -64,6 +64,12 @@ #define HARDIRQ_OFFSET (1UL << HARDIRQ_SHIFT) #define NMI_OFFSET (1UL << NMI_SHIFT) +#ifndef PREEMPT_ACTIVE +#define PREEMPT_ACTIVE_BITS 1 +#define PREEMPT_ACTIVE_SHIFT (NMI_SHIFT + NMI_BITS) +#define PREEMPT_ACTIVE (__IRQ_MASK(PREEMPT_ACTIVE_BITS) << PREEMPT_ACTIVE_SHIFT) +#endif + #if PREEMPT_ACTIVE < (1 << (NMI_SHIFT + NMI_BITS)) #error PREEMPT_ACTIVE is too low! #endif _ Patches currently in -mm which might be from arnd@xxxxxxxx are origin.patch linux-next.patch asm-sections-add-text-data-checking-functions-for-arches-to-override.patch kallsyms-use-new-arch_is_kernel_text.patch lockdep-use-new-arch_is_kernel_data.patch blackfin-override-text-data-checking-functions.patch asm-generic-remove-calling-flush_write_buffers-in-dma_sync__for_cpu.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html