Module flags

Allocation flags.

These are meant to be used in functions that can allocate memory.

Constants

• GFP_ATOMIC
  Users can not sleep and need the allocation to succeed.
• GFP_KERNEL
  Typical for kernel-internal allocations. The caller requires ZONE_NORMAL or a lower zone for direct access but can direct reclaim.
• GFP_KERNEL_ACCOUNT
  The same as GFP_KERNEL, except the allocation is accounted to kmemcg.
• GFP_NOWAIT
  For kernel allocations that should not stall for direct reclaim, start physical IO or use any filesystem callback. It is very likely to fail to allocate memory, even for very small allocations.
• __GFP_HIGHMEM
  Allow the allocation to be in high memory.
• __GFP_NOWARN
  Suppresses allocation failure reports.
• __GFP_ZERO
  Zeroes out the allocated memory.