netfs_write...t_terminated(9)

💅 netfs_write_subrequest_terminated — a Kernel API Manual moment ✨

okay bestie, welcome to the netfs_write...t_terminated(9) page, like, the actual Kernel API Manual entry 🎀 this one's short and sweet and honestly kind of a vibe.

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🌸 NAME 🌸

netfs_write_subrequest_terminated — literally just: note the termination of a write operation. that's it. that's the whole job 🫶

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✨ SYNOPSIS ✨

void netfs_write_subrequest_terminated (void *_op , ssize_t
                                        transferred_or_error );

she takes two things and returns nothing, void, no notes 💅

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🦋 ARGUMENTS 🦋

• _op — the I/O request that has terminated. the one who's done. the main character at the end of her arc 😭
• transferred_or_error — the amount of data transferred, or an error code. like, pick a lane, but it's giving both ✨

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🔥 DESCRIPTION 🔥

okay so this function is basically you telling the library, "bestie, a contributory write I/O operation has terminated, one way or another," and the library is like "say less, I'll collect the results" 💖

the way you communicate the outcome is through transferred_or_error: you slide in a positive value to say how many bytes got transferred, or a negative error code if it went sideways 🙈 that's the whole contract, no cap.

and then the library handles the rest — she'll look after reissuing I/O operations as appropriate, and writing downloaded data to the cache. she's got it from here, you can go 🧚

heads up: when this is called, ownership of the subrequest is transferred back to the library, along with a ref. so like, don't go touching it after, that's the library's subrequest now 👑

and a lil design note that's actually kind of iconic: _op is a void* on purpose — so the function can be passed to kiocb::term_func without the need for a casting wrapper. no casting wrapper needed, we love efficiency ⭐

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🌈 SEE ALSO 🌈

Kernel file ./fs/netfs/write_collect.c — go read it, iykyk 📖

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kisses and good luck out there 💜 this page came to you from ./fs/netfs, dated October 2026, and yes she's serving the netfs_write...t_terminated(9) fantasy the entire time 🎀💫