[PATCH] Additions to .data.read_mostly section
Mark variables which are usually accessed for reads with __readmostly. Signed-off-by: Alok N Kataria <alokk@calsoftinc.com> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds
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39ed3fdeec
commit
6c231b7bab
@@ -78,7 +78,7 @@ static struct irq_pin_list {
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int apic, pin, next;
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} irq_2_pin[PIN_MAP_SIZE];
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int vector_irq[NR_VECTORS] = { [0 ... NR_VECTORS - 1] = -1};
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int vector_irq[NR_VECTORS] __read_mostly = { [0 ... NR_VECTORS - 1] = -1};
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#ifdef CONFIG_PCI_MSI
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#define vector_to_irq(vector) \
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(platform_legacy_irq(vector) ? vector : vector_irq[vector])
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@@ -1119,7 +1119,7 @@ static inline int IO_APIC_irq_trigger(int irq)
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}
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/* irq_vectors is indexed by the sum of all RTEs in all I/O APICs. */
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u8 irq_vector[NR_IRQ_VECTORS] = { FIRST_DEVICE_VECTOR , 0 };
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u8 irq_vector[NR_IRQ_VECTORS] __read_mostly = { FIRST_DEVICE_VECTOR , 0 };
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int assign_irq_vector(int irq)
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{
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@@ -1990,7 +1990,7 @@ static void set_ioapic_affinity_vector (unsigned int vector,
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* edge-triggered handler, without risking IRQ storms and other ugly
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* races.
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*/
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static struct hw_interrupt_type ioapic_edge_type = {
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static struct hw_interrupt_type ioapic_edge_type __read_mostly = {
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.typename = "IO-APIC-edge",
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.startup = startup_edge_ioapic,
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.shutdown = shutdown_edge_ioapic,
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@@ -2003,7 +2003,7 @@ static struct hw_interrupt_type ioapic_edge_type = {
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#endif
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};
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static struct hw_interrupt_type ioapic_level_type = {
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static struct hw_interrupt_type ioapic_level_type __read_mostly = {
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.typename = "IO-APIC-level",
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.startup = startup_level_ioapic,
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.shutdown = shutdown_level_ioapic,
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@@ -2076,7 +2076,7 @@ static void ack_lapic_irq (unsigned int irq)
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static void end_lapic_irq (unsigned int i) { /* nothing */ }
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static struct hw_interrupt_type lapic_irq_type = {
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static struct hw_interrupt_type lapic_irq_type __read_mostly = {
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.typename = "local-APIC-edge",
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.startup = NULL, /* startup_irq() not used for IRQ0 */
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.shutdown = NULL, /* shutdown_irq() not used for IRQ0 */
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