Re: [PATCH v2 3/4] mm/vmalloc: Use kvmalloc to allocate the table of pages

On Wed, 24 Mar 2021, Matthew Wilcox (Oracle) wrote: > If we're trying to allocate 4MB of memory, the table will be 8KiB in size > (1024 pointers * 8 bytes per pointer), which can usually be satisfied > by a kmalloc (which is significantly faster). Instead of changing this > open-coded implementat

[PATCH v2 3/4] mm/vmalloc: Use kvmalloc to allocate the table of pages

If we're trying to allocate 4MB of memory, the table will be 8KiB in size (1024 pointers * 8 bytes per pointer), which can usually be satisfied by a kmalloc (which is significantly faster). Instead of changing this open-coded implementation, just use kvmalloc(). This improves the allocation speed