gnet_stats_copy_queue(9)

💖 gnet_stats_copy_queue(9) 💖

okay bestie, welcome to the Kernel API Manual ✨ this one's a little kernel function from ./net/core and she's literally the queue-statistics bestie you didn't know you needed 🫶

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🌸 NAME 🌸

gnet_stats_copy_queue — copy queue statistics into statistics TLV 💅

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🎀 SYNOPSIS 🎀

int gnet_stats_copy_queue (struct gnet_dump *d , const struct
       gnet_stats_queue __percpu *cpu_q , const struct gnet_stats_queue *q ,
       __u32 qlen );

like, that's the whole signature, no cap — four arguments and an int return, iconic 🌈

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🦋 ARGUMENTS 🦋

• d — the dumping handle 🎯 your main character, the thing doing the dumping
• cpu_q — per cpu queue statistics 🧚 yes, per cpu, she's a __percpu pointer and everything
• q — queue statistics 🍓 the regular, non-per-cpu stats bestie
• qlen — queue length statistics 📏 a __u32, keeping it cute and numeric

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✨ DESCRIPTION ✨

So what she actually does: she appends the queue statistics to the top level TLV that was created by gnet_stats_start_copy 💫 and she uses the per cpu queue statistics if they are available — like, if they're there, she's using them, periodt 👑

Returns 0 on success 🥳 or -1 with the statistic lock released if the room in the socket buffer was not sufficient 😭 — and yes, the lock being released on that -1 path is important, ngl, don't sleep on it.

⚠️ lowkey important: on -1, the statistic lock gets released. that's part of the deal, fr fr 💀

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🔥 SEE ALSO 🔥

• Kernel file ./net/core/gen_stats.c 👀
• gnet_stats_start_copy_compat(9)
• gnet_stats_start_copy(9)
• gnet_stats_copy_basic(9)
• gnet_stats_copy_basic_hw(9)
• gnet_stats_copy_rate_est(9)
• gnet_stats_copy_app(9)
• gnet_stats_finish_copy(9)

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and that's the whole page, bestie 💜 she lives in ./net/core, dated October 2026, and honestly? slay 🎀 go copy some queue statistics, iykyk 🌟