idr_replace (9) - Linux Manuals

idr_replace: replace pointer for given id

NAME

idr_replace - replace pointer for given id

SYNOPSIS

void * idr_replace(struct idr * idp, void * ptr, int id);

ARGUMENTS

idp

idr handle

ptr

pointer you want associated with the id

id

lookup key

DESCRIPTION

Replace the pointer registered with an id and return the old value. A -ENOENT return indicates that id was not found. A -EINVAL return indicates that id was not within valid constraints.

The caller must serialize with writers.

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