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.