mm/execmem.c
Source file repositories/reference/linux-study-clean/mm/execmem.c
File Facts
- System
- Linux kernel
- Corpus path
mm/execmem.c- Extension
.c- Size
- 14421 bytes
- Lines
- 597
- Domain
- Core OS
- Bucket
- Memory Management
- Inferred role
- Core OS: exported/initcall integration point
- Status
- integration 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.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/mm.hlinux/mutex.hlinux/vmalloc.hlinux/execmem.hlinux/maple_tree.hlinux/set_memory.hlinux/moduleloader.hlinux/text-patching.hasm/tlbflush.hinternal.h
Detected Declarations
struct execmem_cachefunction mas_range_lenfunction execmem_set_direct_map_validfunction execmem_force_rwfunction execmem_restore_roxfunction execmem_cache_cleanfunction execmem_cache_add_lockedfunction within_rangefunction mas_for_eachfunction is_pending_freefunction __execmem_cache_freefunction execmem_cache_free_slowfunction mas_for_eachfunction execmem_cache_freefunction usefunction execmem_cache_freefunction execmem_freefunction execmem_is_roxfunction execmem_validatefunction execmem_init_missingfunction execmem_arch_setupfunction __execmem_initfunction execmem_late_initfunction execmem_initmodule init execmem_late_init
Annotated Snippet
core_initcall(execmem_late_init);
#else
void __init execmem_init(void)
{
__execmem_init();
}
#endifAnnotation
- Immediate include surface: `linux/mm.h`, `linux/mutex.h`, `linux/vmalloc.h`, `linux/execmem.h`, `linux/maple_tree.h`, `linux/set_memory.h`, `linux/moduleloader.h`, `linux/text-patching.h`.
- Detected declarations: `struct execmem_cache`, `function mas_range_len`, `function execmem_set_direct_map_valid`, `function execmem_force_rw`, `function execmem_restore_rox`, `function execmem_cache_clean`, `function execmem_cache_add_locked`, `function within_range`, `function mas_for_each`, `function is_pending_free`.
- Atlas domain: Core OS / Memory Management.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.