new_vmap_block(9)

👑 new_vmap_block(9)

okay so welcome to the Kernel API Manual page for new_vmap_block(9), bestie — yes, section (9), kernel API edition. 💅

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✨ NAME ✨

new_vmap_block — allocates a new vmap_block and occupies 2^order pages in this block. Of course, the number of pages can't exceed VMAP_BBMAP_BITS. 🫶

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🌸 SYNOPSIS 🌸

void * new_vmap_block (unsigned int order , gfp_t gfp_mask );

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🎀 ARGUMENTS 🎀

• order — how many 2^order pages should be occupied in the newly allocated block. 🦋
• gfp_mask — flags for the page-level allocator. ✨

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🦋 RETURN 🦋

Returns the virtual address in a newly allocated block, or ERR_PTR(-errno) if it's giving error vibes. 😭

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🌈 SEE ALSO 🌈

The kernel file is ./mm/vmalloc.c — that's the home base, no cap. The whole vmalloc crew is here too:

• vunmap_range(9)
• vmap_pages_range(9)
• vm_area_map_pages(9)
• vm_area_unmap_pages(9)
• vm_unmap_aliases(9)
• vm_unmap_ram(9)
• vm_map_ram(9)
• vm_area_add_early(9)
• vm_area_register_early(9)
• get_vm_area(9)
• find_vm_area(9)
• remove_vm_area(9)
• vfree_atomic(9)
• vfree(9)
• vunmap(9)
• vmap(9)
• vmap_pfn(9)
• __vmalloc_node_range(9)
• __vmalloc_node(9)
• vmalloc(9)
• vmalloc_huge_node(9)
• vzalloc(9)
• vmalloc_user(9)
• vmalloc_node(9)
• vzalloc_node(9)
• vrealloc_node_align(9)
• vmalloc_32(9)
• vmalloc_32_user(9)
• vread_iter(9)
• remap_vmalloc_range_partial(9)
• remap_vmalloc_range(9)
• pvm_find_va_enclose_addr(9)
• pvm_determine_end_from_reverse(9)
• pcpu_get_vm_areas(9)
• pcpu_free_vm_areas(9)

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mwah 💋 this page's source/version tag is ./mm, and the date on the manual is October 2026. Go off, bestie. 🧚