drm_client_buffer_flush(9)

💅 drm_client_buffer_flush(9) — Kernel API Manual ✨

okay so bestie, welcome to drm_client_buffer_flush(9), straight out of the Kernel API Manual, no cap 🎀

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🌸 NAME 🌸

drm_client_buffer_flush — manually flush a client buffer, like, you doing it, on purpose, with your own hands 💖

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✨ SYNOPSIS ✨

int drm_client_buffer_flush (struct drm_client_buffer *buffer , struct
       drm_rect *rect );

it's giving "returns an int, takes two things" 🫶

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🦋 ARGUMENTS 🦋

• buffer — the DRM client buffer, the main character of this whole function 👑
• rect — the damage rectangle 🌈 and listen, if it's NULL, literally everything gets flushed, the whole vibe, all of it

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💜 DESCRIPTION 💜

so what this does is call drm_framebuffer_funcs->dirty — if present, key detail, don't forget the "if present" 😭 — to flush buffer changes for the drivers that actually need it. not every driver needs it, she's thicc but she's conditional 💅

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⭐ RETURN ⭐

zero on success 🎉 or a negative error code on failure 💀 that's it, that's the whole return contract, slay

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/drm_client.c overview(9) — the overview, the lore, the backstory 📖
• drm_client_init(9)
• drm_client_register(9)
• drm_client_release(9)
• drm_client_buffer_delete(9)
• drm_client_buffer_vmap_local(9)
• drm_client_buffer_vunmap_local(9)
• drm_client_buffer_vmap(9)
• drm_client_buffer_vunmap(9)
• drm_client_buffer_create_dumb(9)

the whole friend group, fr fr 🫶✨

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ngl bestie, rect being NULL = flush everything, so if you didn't mean that, you meant something else 💀

okay bye ily, this page came from ./drivers/gpu/drm, dated October 2026, and it's drm_client_buffer_flush(9) — go read the source and stay hydrated 🍓🧚💜