time_before64(9)

💖 time_before64(9) — the kernel api manual, bestie edition 💖

okay so real talk, we're in the time_before64(9) girlies today. this is a little inline from the kernel api manual and honestly? she's lowkey carrying the whole 64-bit time situation. come sit with me 🫶

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✨ NAME ✨

time_before64 — returns true if the time a is before time b. that's it. that's the whole gig. simple, iconic, no notes 💅

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🌸 SYNOPSIS 🌸

time_before64 (a , b );

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🎀 ARGUMENTS 🎀

• a — the first comparable, and she's a __u64. that's the type, bestie, respect it 💜
• b — the second comparable, also a __u64. matched set, we love to see it ✨

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🦋 DESCRIPTION 🦋

so here's the thing, and i need you to actually listen to this part: you must use this one when you're utilizing jiffies_64. yep, that means the return value of get_jiffies_64. like if you're working with the 64-bit jiffies and you reach for anything else, that's giving wrong answer energy and we don't do that here 🙈

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👑 RETURN 👑

true if time a is before time b, otherwise false. that's the vibe check, and she always answers honestly 💖

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🌈 SEE ALSO 🌈

no because the see also section is long and she ate every single time. okay go read:

• Kernel file ./include/linux/jiffies.h
• get_jiffies_64(9)
• General information about time_* inlines(9)
• time_after(9)
• time_before(9)
• time_after_eq(9)
• time_before_eq(9)
• time_in_range(9)
• time_in_range_open(9)
• time_after64(9)
• time_after_eq64(9)
• time_before_eq64(9)
• time_in_range64(9)
• time_is_before_jiffies(9)
• time_is_before_jiffies64(9)
• time_is_after_jiffies(9)
• time_is_after_jiffies64(9)
• time_is_before_eq_jiffies(9)
• time_is_before_eq_jiffies64(9)
• time_is_after_eq_jiffies(9)
• time_is_after_eq_jiffies64(9)
• jiffies_to_msecs(9)
• jiffies_to_usecs(9)
• jiffies_to_nsecs(9)
• msecs_to_jiffies(9)
• secs_to_jiffies(9)
• usecs_to_jiffies(9)

like i said. she ATE. 💀

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and that's the whole page, bestie, no cap 🧚 this little gem lives over in ./include/linux and the manual itself is dated October 2026 — so yeah, she's from the future and still slaying. mwah 💋⭐