kernel/irq/debugfs.h

File Facts

System

Linux kernel

Corpus path

kernel/irq/debugfs.h

Extension

.h

Size

1134 bytes

Lines

45

Domain

Core OS

Bucket

Scheduler, Processes, Timers, Sync, And Syscalls

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/debugfs.h

Detected Declarations

• struct irq_bit_descr
• function irq_remove_debugfs_entry
• function irq_domain_debugfs_init

Annotated Snippet

struct irq_bit_descr {
	unsigned int	mask;
	char		*name;
};

#define BIT_MASK_DESCR(m)	{ .mask = m, .name = #m }

void irq_debug_show_bits(struct seq_file *m, int ind, unsigned int state,
			 const struct irq_bit_descr *sd, int size);

void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *desc);
static inline void irq_remove_debugfs_entry(struct irq_desc *desc)
{
	debugfs_remove(desc->debugfs_file);
	kfree(desc->dev_name);
}
void irq_debugfs_copy_devname(int irq, struct device *dev);
# ifdef CONFIG_IRQ_DOMAIN
void irq_domain_debugfs_init(struct dentry *root);
# else
static inline void irq_domain_debugfs_init(struct dentry *root)
{
}
# endif
#else /* CONFIG_GENERIC_IRQ_DEBUGFS */
static inline void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *d)
{
}
static inline void irq_remove_debugfs_entry(struct irq_desc *d)
{
}
static inline void irq_debugfs_copy_devname(int irq, struct device *dev)
{
}
#endif /* CONFIG_GENERIC_IRQ_DEBUGFS */

#endif

Annotation

• Immediate include surface: `linux/debugfs.h`.
• Detected declarations: `struct irq_bit_descr`, `function irq_remove_debugfs_entry`, `function irq_domain_debugfs_init`.
• Atlas domain: Core OS / Scheduler, Processes, Timers, Sync, And Syscalls.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.