for_each_mem_range_rev(9)

💅 for_each_mem_range_rev(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — this one's a lil macro from the memblock cinematic universe and honestly it's giving reverse main character energy. no cap.

🌸 NAME 🌸

for_each_mem_range_rev — reverse iterate through memblock areas from type_a and not included in type_b. Or just type_a if type_b is NULL. 🦋

✨ SYNOPSIS ✨

for_each_mem_range_rev (i , p_start , p_end );

like, that's it. that's the whole vibe. 🎀

🫶 ARGUMENTS 🫶

• i — a u64 used as the loop variable. it's the little counter bestie that keeps the party going 🔥
• p_start — ptr to phys_addr_t for the start address of the range. can be NULL, so don't stress if you don't have one 💅
• p_end — ptr to phys_addr_t for the end address of the range. also can be NULL, we're flexible like that 💜

👑 SEE ALSO 👑

Kernel file ./include/linux/memblock.h — and oml the whole friend group showed up, we love a supportive cast 🌈:

• enum memblock_flags(9)
• struct memblock_region(9)
• struct memblock_type(9)
• struct memblock(9)
• for_each_physmem_range(9)
• __for_each_mem_range(9)
• __for_each_mem_range_rev(9)
• for_each_mem_range(9)
• for_each_reserved_mem_range(9)
• for_each_mem_pfn_range(9)
• for_each_free_mem_range(9)
• for_each_free_mem_range_reverse(9)
• memblock_set_current_limit(9)
• memblock_region_memory_base_pfn(9)
• memblock_region_memory_end_pfn(9)
• memblock_region_reserved_base_pfn(9)
• memblock_region_reserved_end_pfn(9)
• for_each_mem_region(9)
• for_each_reserved_mem_region(9)

ok and before you go — this page lives in ./include/linux, dated October 2026, from the Kernel API Manual set (yes we're time-travelling a lil bit, slay 💀). go read the memblock header fr fr, ily, bye bestie 🍓🧚💖