strfilter__or(9)

📦 version 7.3.1, in nixpkgs unstable

💅 strfilter__or — the kernel API manual, bestie edition 🎀

okay so picture this: it's a strfilter__or(9) situation, straight out of the Kernel API Manual, and ngl it's a tiny little function that does one very specific iconic thing. let's get into it ✨

🌸 NAME 🌸

strfilter__or — appends one more rule to your filter, and it does it with a logical-or. that's it, that's the whole vibe 💖

🦋 SYNOPSIS 🦋

int strfilter__or (struct strfilter *filter , const char *rules , const
char **err );

look at her. three args, returns an int, no drama. slay 🔥

🎀 ARGUMENTS 🎀

  • filter — the original string filter. this is your main character, the thing everything gets attached to 👑
  • rules — the filter rule that's gonna get appended at the left of the root of filter, by using logical-or. yes, left, at the root — that's exactly what the man page says and i'm not about to paraphrase the address, periodt 💅
  • err — a pointer which points at an error detected on rules. so if the rules are giving problems, this is where you find out 😭

💜 DESCRIPTION 💜

so what actually happens? strfilter__or parses rules and joins it to the filter by using logical-or. that's the whole job, and she does it well 🫶

returns 0 if success — happy ending, we love to see it 🌈 — or returns the error code if it's not. so like, check your return value, bestie, no cap 💀

⭐ SEE ALSO ⭐

the kernel file ./tools/perf/util/strfilter.h, plus the whole friend group:

iykyk 🦋

lowkey unrelated but: this page comes from ./tools/perf/util and it's dated October 2026, and the page itself is strfilter__or(9) — so yeah, that's the whole source/version/date situation, noted and respectfully acknowledged 🧚💜

k bye, go read strfilter__compare(9) next, mwah 💋✨

📦 where this page comes from