Blackfin arch: smp patch cleanup from LKML review

[linux-2.6-block.git] / arch / blackfin / kernel / process.c

diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 0c3ea118b657563f6486d6b2554180d1db0c2886..1ec0faa8c68dbb53ffccdf70db2564ea869e468e 100644 (file)
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,6 +39,7 @@
 
 #include <asm/blackfin.h>
 #include <asm/fixed_code.h>
+#include <asm/mem_map.h>
 
 asmlinkage void ret_from_fork(void);
 
@@ -154,6 +155,7 @@ pid_t kernel_thread(int (*fn) (void *), void *arg, unsigned long flags)
        return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL,
                       NULL);
 }
+EXPORT_SYMBOL(kernel_thread);
 
 void flush_thread(void)
 {
@@ -170,6 +172,13 @@ asmlinkage int bfin_clone(struct pt_regs *regs)
        unsigned long clone_flags;
        unsigned long newsp;
 
+#ifdef __ARCH_SYNC_CORE_DCACHE
+       if (current->rt.nr_cpus_allowed == num_possible_cpus()) {
+               current->cpus_allowed = cpumask_of_cpu(smp_processor_id());
+               current->rt.nr_cpus_allowed = 1;
+       }
+#endif
+
        /* syscall2 puts clone_flags in r0 and usp in r1 */
        clone_flags = regs->r0;
        newsp = regs->r1;
@@ -337,22 +346,22 @@ int _access_ok(unsigned long addr, unsigned long size)
        if (addr >= (unsigned long)__init_begin &&
            addr + size <= (unsigned long)__init_end)
                return 1;
-       if (addr >= L1_SCRATCH_START
-           && addr + size <= L1_SCRATCH_START + L1_SCRATCH_LENGTH)
+       if (addr >= get_l1_scratch_start()
+           && addr + size <= get_l1_scratch_start() + L1_SCRATCH_LENGTH)
                return 1;
 #if L1_CODE_LENGTH != 0
-       if (addr >= L1_CODE_START + (_etext_l1 - _stext_l1)
-           && addr + size <= L1_CODE_START + L1_CODE_LENGTH)
+       if (addr >= get_l1_code_start() + (_etext_l1 - _stext_l1)
+           && addr + size <= get_l1_code_start() + L1_CODE_LENGTH)
                return 1;
 #endif
 #if L1_DATA_A_LENGTH != 0
-       if (addr >= L1_DATA_A_START + (_ebss_l1 - _sdata_l1)
-           && addr + size <= L1_DATA_A_START + L1_DATA_A_LENGTH)
+       if (addr >= get_l1_data_a_start() + (_ebss_l1 - _sdata_l1)
+           && addr + size <= get_l1_data_a_start() + L1_DATA_A_LENGTH)
                return 1;
 #endif
 #if L1_DATA_B_LENGTH != 0
-       if (addr >= L1_DATA_B_START + (_ebss_b_l1 - _sdata_b_l1)
-           && addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH)
+       if (addr >= get_l1_data_b_start() + (_ebss_b_l1 - _sdata_b_l1)
+           && addr + size <= get_l1_data_b_start() + L1_DATA_B_LENGTH)
                return 1;
 #endif
 #if L2_LENGTH != 0