scripts/atomic/kerneldoc/add_unless

File Facts

System

Linux kernel

Corpus path

scripts/atomic/kerneldoc/add_unless

Extension

[no extension]

Size

486 bytes

Lines

20

Domain

Support Tooling And Documentation

Bucket

scripts

Inferred role

Support Tooling And Documentation: scripts

Status

atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

if [ -z "${pfx}" ]; then
	desc_return="Return: @true if @v was updated, @false otherwise."
fi

cat <<EOF
/**
 * ${class}${atomicname}() - atomic add unless value with ${desc_order} ordering
 * @v: pointer to ${atomic}_t
 * @a: ${int} value to add
 * @u: ${int} value to compare with
 *
 * If (@v != @u), atomically updates @v to (@v + @a) with ${desc_order} ordering.
 * Otherwise, @v is not modified and relaxed ordering is provided.
 *
 * ${desc_noinstr}
 *
 * ${desc_return}
 */
EOF

Annotation

• Atlas domain: Support Tooling And Documentation / scripts.
• Implementation status: atlas-only.

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.