realloc_mem_ranges(9)

💖 NAME 💖

okay so bestie, this is realloc_mem_ranges(9) from the Kernel API Manual — and she's here to reallocate mem_ranges with the size incremented by MEM_RANGE_CHUNK_SZ 💅. Also, it frees up the old memory, if memory allocation fails 🫶. Like, that part is important, no cap.

🛠️ SYNOPSIS 🛠️

struct crash_mem * realloc_mem_ranges (struct crash_mem **mem_ranges );

That signature is verbatim, bestie — code does not get the group-chat remix treatment 🧚.

🎀 ARGUMENTS 🎀

• mem_ranges — memory ranges to reallocate. That's the whole argument list, and yes, it's serving main-character energy 👑.

✨ DESCRIPTION ✨

On success, it returns a pointer to the reallocated memory. Otherwise, it returns NULL 😭. That's the vibe: pointer when it works, NULL when it doesn't. Periodt.

quick reminder: the NAME section says it frees up the old memory, if memory allocation fails. So that's fr fr part of the deal 💀.

🔗 SEE ALSO 🔗

• Kernel file ./arch/powerpc/kexec/ranges.c
• get_max_nr_ranges(9)
• get_mem_rngs_size(9)
• __add_mem_range(9)
• __merge_memory_ranges(9)
• sort_memory_ranges(9)
• add_mem_range(9)
• add_tce_mem_ranges(9)
• add_initrd_mem_range(9)
• add_htab_mem_range(9)
• add_kernel_mem_range(9)
• add_rtas_mem_range(9)
• add_opal_mem_range(9)
• add_reserved_mem_ranges(9)
• get_reserved_memory_ranges(9)
• get_exclude_memory_ranges(9)
• get_usable_memory_ranges(9)
• get_crash_memory_ranges(9)

xoxo, your local Unix bestie 💋 — source/version: ./arch/powerpc/kexec; date: October 2026; page: realloc_mem_ranges(9) 🫶