include/uapi/linux/resource.h
Source file repositories/reference/linux-study-clean/include/uapi/linux/resource.h
File Facts
- System
- Linux kernel
- Corpus path
include/uapi/linux/resource.h- Extension
.h- Size
- 2610 bytes
- Lines
- 89
- Domain
- Core OS
- Bucket
- Core Kernel Interface
- 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/time_types.hlinux/types.hasm/resource.h
Detected Declarations
struct rusagestruct rlimitstruct rlimit64
Annotated Snippet
struct rusage {
struct __kernel_old_timeval ru_utime; /* user time used */
struct __kernel_old_timeval ru_stime; /* system time used */
__kernel_long_t ru_maxrss; /* maximum resident set size */
__kernel_long_t ru_ixrss; /* integral shared memory size */
__kernel_long_t ru_idrss; /* integral unshared data size */
__kernel_long_t ru_isrss; /* integral unshared stack size */
__kernel_long_t ru_minflt; /* page reclaims */
__kernel_long_t ru_majflt; /* page faults */
__kernel_long_t ru_nswap; /* swaps */
__kernel_long_t ru_inblock; /* block input operations */
__kernel_long_t ru_oublock; /* block output operations */
__kernel_long_t ru_msgsnd; /* messages sent */
__kernel_long_t ru_msgrcv; /* messages received */
__kernel_long_t ru_nsignals; /* signals received */
__kernel_long_t ru_nvcsw; /* voluntary context switches */
__kernel_long_t ru_nivcsw; /* involuntary " */
};
struct rlimit {
__kernel_ulong_t rlim_cur;
__kernel_ulong_t rlim_max;
};
#define RLIM64_INFINITY (~0ULL)
struct rlimit64 {
__u64 rlim_cur;
__u64 rlim_max;
};
#define PRIO_MIN (-20)
#define PRIO_MAX 20
#define PRIO_PROCESS 0
#define PRIO_PGRP 1
#define PRIO_USER 2
/*
* Limit the stack by to some sane default: root can always
* increase this limit if needed.. 8MB seems reasonable.
*/
#define _STK_LIM (8*1024*1024)
/*
* Limit the amount of locked memory by some sane default:
* root can always increase this limit if needed.
*
* The main use-cases are (1) preventing sensitive memory
* from being swapped; (2) real-time operations; (3) via
* IOURING_REGISTER_BUFFERS.
*
* The first two don't need much. The latter will take as
* much as it can get. 8MB is a reasonably sane default.
*/
#define MLOCK_LIMIT (8*1024*1024)
/*
* Due to binary compatibility, the actual resource numbers
* may be different for different linux versions..
*/
#include <asm/resource.h>
#endif /* _UAPI_LINUX_RESOURCE_H */
Annotation
- Immediate include surface: `linux/time_types.h`, `linux/types.h`, `asm/resource.h`.
- Detected declarations: `struct rusage`, `struct rlimit`, `struct rlimit64`.
- Atlas domain: Core OS / Core Kernel Interface.
- 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.