for_each_memory_block(9)

✨ NAME ✨

for_each_memory_block — walk through all present memory blocks 🚶‍♀️💖

Okay so this is for_each_memory_block(9) from the Kernel API Manual, bestie. Group chat is open, let's go. 💅

🌸 SYNOPSIS 🌸

int for_each_memory_block (void *arg , walk_memory_blocks_func_t func );

🎀 ARGUMENTS 🎀

• arg — the argument that gets passed to func 🫶
• func — the callback for each memory block walked ✨

🦋 DESCRIPTION 🦋

So like, for_each_memory_block literally walks through all present memory blocks and calls func on each memory block. It's giving “one by one, no block left behind.” 💅

And if func returns an error, walking is aborted and the error is returned. Not me getting emotionally invested in the walk only for it to stop early 😭 but yes, that's the deal.

🔥 SEE ALSO 🔥

Kernel file ./drivers/base/memory.c and these other pages, bestie:

• memory_block_advise_max_size(9)
• memory_block_advised_max_size(9)
• memory_block_add_nid_early(9)
• walk_memory_blocks(9)
• memory_group_register_static(9)
• memory_group_register_dynamic(9)
• memory_group_unregister(9)

Sign-off time 🎀: source/version is ./drivers/base, date is October 2026, and the page is for_each_memory_block(9) 💖✨