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- stretch 4.9.168-1
| IDR_REPLACE(9) | Basic Kernel Library Functions | IDR_REPLACE(9) |
NAME¶
idr_replace - replace pointer for given idSYNOPSIS¶
void * idr_replace(struct idr * idp, void * ptr, int id);
ARGUMENTS¶
idpidr 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.
COPYRIGHT¶
| April 2019 | Kernel Hackers Manual 4.9. |