fs/proc/util.c

Source file repositories/reference/linux-study-clean/fs/proc/util.c

File Facts

System
Linux kernel
Corpus path
fs/proc/util.c
Extension
.c
Size
383 bytes
Lines
25
Domain
Core OS
Bucket
VFS And Filesystem Core
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#include <linux/dcache.h>
#include "internal.h"

unsigned name_to_int(const struct qstr *qstr)
{
	const char *name = qstr->name;
	int len = qstr->len;
	unsigned n = 0;

	if (len > 1 && *name == '0')
		goto out;
	do {
		unsigned c = *name++ - '0';
		if (c > 9)
			goto out;
		if (n >= (~0U-9)/10)
			goto out;
		n *= 10;
		n += c;
	} while (--len > 0);
	return n;
out:
	return ~0U;
}

Annotation

Implementation Notes