The patch titled
Less softirq vectors
has been added to the -mm tree. Its filename is
less-softirq-vectors.patch
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------------------------------------------------------
Subject: Less softirq vectors
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
We don't need whole 32 of them, only NR_SOFTIRQS.
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/interrupt.h | 2 ++
kernel/softirq.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff -puN include/linux/interrupt.h~less-softirq-vectors include/linux/interrupt.h
--- a/include/linux/interrupt.h~less-softirq-vectors
+++ a/include/linux/interrupt.h
@@ -259,6 +259,8 @@ enum
HRTIMER_SOFTIRQ,
#endif
RCU_SOFTIRQ, /* Preferable RCU should always be the last softirq */
+
+ NR_SOFTIRQS
};
/* softirq mask and active fields moved to irq_cpustat_t in
diff -puN kernel/softirq.c~less-softirq-vectors kernel/softirq.c
--- a/kernel/softirq.c~less-softirq-vectors
+++ a/kernel/softirq.c
@@ -46,7 +46,7 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cach
EXPORT_SYMBOL(irq_stat);
#endif
-static struct softirq_action softirq_vec[32] __cacheline_aligned_in_smp;
+static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;
static DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
origin.patch
linux-next.patch
less-softirq-vectors.patch
mpt-remove-unused-struct-mpt_proc_entry_t.patch
cpuset-use-seq_cpumask-seq_nodemask.patch
proc-use-non-racy-method-for-proc-page_owner-creation-page_owner.patch
likely_prof-changed-to-use-proc_create.patch
proc-remove-proc_root-from-drivers-likelyprof.patch
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