lpfc_debugfs...ipools_write(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 lpfc_debugfs_multixripools_write(9) — the kernel API glow-up 🎀

okay bestie, so this is a page from the Kernel API Manual (yes, that manual), and the star of the show is the function lpfc_debugfs_multixripools_write(9). she's a debugfs write handler and honestly she has one job and she does it 💅

✨ NAME ✨

lpfc_debugfs_multixripools_write — clear multi-XRI pools statistics 🧹✨

literally that's it, that's her whole personality, and we respect it.

🌸 SYNOPSIS 🌸

ssize_t lpfc_debugfs_multixripools_write (struct file *file , const char
__user *buf , size_t nbytes , loff_t *ppos );

she takes four args and returns an ssize_t, periodt. 💖

🦋 ARGUMENTS 🦋

okay so these are the four besties she rolls with:

  • file — the file pointer you're reading from, iykyk 📂
  • buf — the buffer where we copy the user data from, that's the whole vibe 🫙
  • nbytes — the number of bytes to get, so like, how much we're grabbing 🔢
  • ppos — the position in the file to start reading from, our little bookmark 🔖

💜 DESCRIPTION 💜

so here's the tea ☕: this routine clears multi-XRI pools statistics — but only when buf contains "clear". that's the magic word, no cap. no "clear", no clearing. 🔥

Return Value: when everything slays, it returns the nbytges passing in from debugfs user space. (and yes, that spelling nbytges is straight from the original — not me, I would never 😭🙈). in case of error conditions, it returns the proper error code back to the user space, so nothing gets left on read. 💀

heads up bestie: success means you get that byte count back; failure means you get a proper error code. don't confuse the two, fr fr 🫶

🧚 SEE ALSO 🧚

the kernel file that's giving main character energy:

  • ./drivers/scsi/lpfc/lpfc_debugfs.c

and now the whole group chat, in order, exactly as invited 👑:

like, that's the entire contact list bestie, she knows everyone 😭💅

and that's the whole page!! mwah 🍓 before you go — this one's stamped from <pink>./drivers/scsi/lpfc</pink> with a date of <purple>October 2026</purple>, and it's filed under lpfc_debugfs...ipools_write(9). good luck out there, go clear some pools 💖✨🦋

📦 where this page comes from