Blackfin: simplify SMP handling in SRAM code
There is no need to use {get,put}_cpu() when we already have a spinlock to
protect against multiple processors running simultaneously.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c
index f068c11..5732da2 100644
--- a/arch/blackfin/mm/sram-alloc.c
+++ b/arch/blackfin/mm/sram-alloc.c
@@ -402,7 +402,7 @@
void *addr;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1_data_sram_lock, cpu), flags);
@@ -411,7 +411,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1_data_sram_lock, cpu), flags);
- put_cpu();
pr_debug("Allocated address in l1_data_A_sram_alloc is 0x%lx+0x%lx\n",
(long unsigned int)addr, size);
@@ -430,7 +429,7 @@
int ret;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1_data_sram_lock, cpu), flags);
@@ -439,7 +438,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1_data_sram_lock, cpu), flags);
- put_cpu();
return ret;
#else
@@ -455,7 +453,7 @@
void *addr;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1_data_sram_lock, cpu), flags);
@@ -464,7 +462,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1_data_sram_lock, cpu), flags);
- put_cpu();
pr_debug("Allocated address in l1_data_B_sram_alloc is 0x%lx+0x%lx\n",
(long unsigned int)addr, size);
@@ -483,7 +480,7 @@
int ret;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1_data_sram_lock, cpu), flags);
@@ -492,7 +489,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1_data_sram_lock, cpu), flags);
- put_cpu();
return ret;
#else
@@ -540,7 +536,7 @@
void *addr;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1_inst_sram_lock, cpu), flags);
@@ -549,7 +545,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1_inst_sram_lock, cpu), flags);
- put_cpu();
pr_debug("Allocated address in l1_inst_sram_alloc is 0x%lx+0x%lx\n",
(long unsigned int)addr, size);
@@ -568,7 +563,7 @@
int ret;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1_inst_sram_lock, cpu), flags);
@@ -577,7 +572,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1_inst_sram_lock, cpu), flags);
- put_cpu();
return ret;
#else
@@ -593,7 +587,7 @@
void *addr;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1sram_lock, cpu), flags);
@@ -602,7 +596,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1sram_lock, cpu), flags);
- put_cpu();
return addr;
}
@@ -614,7 +607,7 @@
void *addr;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1sram_lock, cpu), flags);
@@ -623,7 +616,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1sram_lock, cpu), flags);
- put_cpu();
return addr;
}
@@ -635,7 +627,7 @@
int ret;
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
/* add mutex operation */
spin_lock_irqsave(&per_cpu(l1sram_lock, cpu), flags);
@@ -644,7 +636,6 @@
/* add mutex operation */
spin_unlock_irqrestore(&per_cpu(l1sram_lock, cpu), flags);
- put_cpu();
return ret;
}