cpumask_shift_left(9)

💅 cpumask_shift_left — Kernel API Manual, bestie edition 🎀

okay so picture this: it's a whole manual page for cpumask_shift_left, living in the Kernel API Manual, and it's literally just one job. One. Iconic behavior honestly.

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✨ NAME ✨

cpumask_shift_left — the way that *dstp = *srcp << n and nothing else, no notes, she's booked and busy 💅

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🌸 SYNOPSIS 🌸

void cpumask_shift_left (struct cpumask *dstp , const struct cpumask
*srcp , int n );

that's it. that's the whole vibe. no cap 🌈

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🦋 ARGUMENTS 🦋

• dstp — the cpumask result, aka where the shifted slay lands 👑 this is your output, she's receiving
• srcp — the input to shift, your starting material, the main character of the operation 🎀
• n — the number of bits to shift by, a plain old int, no drama, just bits moving left ⭐

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🔥 SEE ALSO 🔥

Kernel file ./include/linux/cpumask.h — and the whole friend group, because cpumask functions literally never go anywhere alone 🫶:

• cpumask_pr_args(9), cpumask_first(9), cpumask_first_zero(9), cpumask_first_and(9), cpumask_first_andnot(9), cpumask_first_and_and(9), cpumask_last(9)
• cpumask_next(9), cpumask_next_zero(9), cpumask_next_and(9), cpumask_next_andnot(9), cpumask_next_and_wrap(9), cpumask_next_wrap(9), cpumask_random(9)
• for_each_cpu(9), for_each_cpu_wrap(9), for_each_cpu_and(9), for_each_cpu_andnot(9), for_each_cpu_or(9), for_each_cpu_from(9)
• cpumask_any_but(9), cpumask_any_and_but(9), cpumask_any_andnot_but(9)
• cpumask_nth(9), cpumask_nth_and(9), cpumask_nth_and_andnot(9)
• cpumask_set_cpu(9), cpumask_clear_cpus(9), cpumask_clear_cpu(9), cpumask_test_cpu(9), cpumask_test_and_set_cpu(9), cpumask_test_and_clear_cpu(9), cpumask_setall(9), cpumask_clear(9)
• cpumask_and(9), cpumask_or(9), cpumask_weighted_or(9), cpumask_xor(9), cpumask_andnot(9)
• cpumask_equal(9), cpumask_or_equal(9), cpumask_intersects(9), cpumask_subset(9), cpumask_empty(9), cpumask_full(9)
• cpumask_weight(9), cpumask_weight_and(9), cpumask_weight_andnot(9)
• cpumask_shift_right(9) — yes bestie, there's a right one too, they're twins 💀
• cpumask_copy(9), cpumask_any(9), cpumask_any_and(9), cpumask_of(9)
• cpumask_parse_user(9), cpumask_parselist_user(9), cpumask_parse(9), cpulist_parse(9), cpumask_size(9)
• alloc_cpumask_var(9), to_cpumask(9), num_online_cpus(9)
• cpumap_print_bitmask_to_buf(9), cpumap_print_list_to_buf(9)

like, she knows everybody. lowkey the socialite of cpumask.h 💖

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ngl the whole page is one line of math and then a 60-name group chat, and honestly? that's the energy. periodt. 🙈

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okay so that's the tea 🍓 — this little number comes to you from the source at ./include/linux, dated October 2026, and the footer's whole identity is that it says cpumask_shift_left(9) back at you like a mirror selfie. byeee, go shift some bits responsibly 🧚‍♀️✨👑