vma-funcs.md

VMA Functions

Contents

• vma_is_anonymous() - Determines if the specified VMA is anonymous (i.e. does not map a file.)

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Function Descriptions

vma_is_anonymous()

bool vma_is_anonymous(struct vm_area_struct *vma)

vma_is_anonymous() determines whether the specified VMA (i.e. struct vm_area_struct) is anonymous - an anonymous VMA is one that does not map a file but rather simply represents an area of memory unassociated with any file.

The function simply tests whether the VMA's vm_ops fields is null - if so, no operations are specified and so the VMA is anonymous, otherwise it is not.

Arguments

• vma - The VMA whose anonymity we wish to determine.

Returns

true if the VMA is anonymous, otherwise false.

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