sb_end_intwrite(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sb_end_intwrite(9) — Kernel API Manual, bestie edition 🎀

okay so welcome to the sb_end_intwrite page, section 9 of the Kernel API Manual, and honestly? bestie, this one is short and sweet but it's important, so pay attention 💖

✨ NAME ✨

sb_end_intwrite — drop write access to a superblock for internal fs purposes 🦋

like, you had write access. now you don't. slay.

🌸 SYNOPSIS 🌸

void sb_end_intwrite (struct super_block *sb );

no return value, no drama, she just does the thing 💅

🫶 ARGUMENTS 🫶

  • sb — the super we wrote to 👑 (yes, "the super". that's the superblock. she's the main character here.)

🔥 DESCRIPTION 🔥

so what actually happens? Decrement fs-internal number of writers to the filesystem. that's it, that's the whole gig — you're checking out of the internal-writer club, one fewer name on the list ✨

and then the cute part: Wake up possible waiters wanting to freeze the filesystem. like, there might be someone literally waiting to freeze this filesystem, and your little decrement is their cue 🌈 so if you skipped this call, those waiters would just be sitting there, waiting, and the freeze would never come. not cute. not the vibe. do your decrement. 💀

🦋 SEE ALSO 🦋

the whole superblock-write-access friend group, all hanging out in the kernel file ./include/linux/fs/super.h 🧚:

iykyk 💜

and that's the page!! this icon came from ./include/linux/fs, dated October 2026, and it's filed under sb_end_intwrite(9) — go forth, end those intwrites, wake those waiters, periodt 🌸💖🎀

📦 where this page comes from