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proc: introduce proc_create_single{,_data}

Browse source 
Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.

All trivial callers converted over.

Signed-off-by: Christoph Hellwig <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-05-15 15:57:23 +02:00
commit 3f3942aca6
85 changed files with 235 additions and 1509 deletions
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82
kernel/irq/proc.c
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@ -185,11 +185,6 @@ static int irq_affinity_list_proc_open(struct inode *inode, struct file *file)
return single_open(file, irq_affinity_list_proc_show, PDE_DATA(inode));
}
static int irq_affinity_hint_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, irq_affinity_hint_proc_show, PDE_DATA(inode));
}
static const struct file_operations irq_affinity_proc_fops = {
.open = irq_affinity_proc_open,
.read = seq_read,
@ -198,13 +193,6 @@ static const struct file_operations irq_affinity_proc_fops = {
.write = irq_affinity_proc_write,
};
static const struct file_operations irq_affinity_hint_proc_fops = {
.open = irq_affinity_hint_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static const struct file_operations irq_affinity_list_proc_fops = {
.open = irq_affinity_list_proc_open,
.read = seq_read,
@ -223,32 +211,6 @@ static int irq_effective_aff_list_proc_show(struct seq_file *m, void *v)
{
return show_irq_affinity(EFFECTIVE_LIST, m);
}
static int irq_effective_aff_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, irq_effective_aff_proc_show, PDE_DATA(inode));
}
static int irq_effective_aff_list_proc_open(struct inode *inode,
struct file *file)
{
return single_open(file, irq_effective_aff_list_proc_show,
PDE_DATA(inode));
}
static const struct file_operations irq_effective_aff_proc_fops = {
.open = irq_effective_aff_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static const struct file_operations irq_effective_aff_list_proc_fops = {
.open = irq_effective_aff_list_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
static int default_affinity_show(struct seq_file *m, void *v)
@ -313,18 +275,6 @@ static int irq_node_proc_show(struct seq_file *m, void *v)
seq_printf(m, "%d\n", irq_desc_get_node(desc));
return 0;
}
static int irq_node_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, irq_node_proc_show, PDE_DATA(inode));
}
static const struct file_operations irq_node_proc_fops = {
.open = irq_node_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
static int irq_spurious_proc_show(struct seq_file *m, void *v)
@ -337,18 +287,6 @@ static int irq_spurious_proc_show(struct seq_file *m, void *v)
return 0;
}
static int irq_spurious_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, irq_spurious_proc_show, PDE_DATA(inode));
}
static const struct file_operations irq_spurious_proc_fops = {
.open = irq_spurious_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#define MAX_NAMELEN 128
static int name_unique(unsigned int irq, struct irqaction *new_action)
@ -421,24 +359,24 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc)
&irq_affinity_proc_fops, irqp);
/* create /proc/irq/<irq>/affinity_hint */
proc_create_data("affinity_hint", 0444, desc->dir,
&irq_affinity_hint_proc_fops, irqp);
proc_create_single_data("affinity_hint", 0444, desc->dir,
irq_affinity_hint_proc_show, irqp);
/* create /proc/irq/<irq>/smp_affinity_list */
proc_create_data("smp_affinity_list", 0644, desc->dir,
&irq_affinity_list_proc_fops, irqp);
proc_create_data("node", 0444, desc->dir,
&irq_node_proc_fops, irqp);
proc_create_single_data("node", 0444, desc->dir, irq_node_proc_show,
irqp);
# ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK
proc_create_data("effective_affinity", 0444, desc->dir,
&irq_effective_aff_proc_fops, irqp);
proc_create_data("effective_affinity_list", 0444, desc->dir,
&irq_effective_aff_list_proc_fops, irqp);
proc_create_single_data("effective_affinity", 0444, desc->dir,
irq_effective_aff_proc_show, irqp);
proc_create_single_data("effective_affinity_list", 0444, desc->dir,
irq_effective_aff_list_proc_show, irqp);
# endif
#endif
proc_create_data("spurious", 0444, desc->dir,
&irq_spurious_proc_fops, (void *)(long)irq);
proc_create_single_data("spurious", 0444, desc->dir,
irq_spurious_proc_show, (void *)(long)irq);
out_unlock:
mutex_unlock(&register_lock);