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IPC_LOCK(9) Kernel IPC facilities IPC_LOCK(9)

NAME

ipc_lock - lock an ipc structure without rwsem held

SYNOPSIS

struct kern_ipc_perm * ipc_lock(struct ipc_ids * ids, int id);

ARGUMENTS

ids
ipc identifier set
id
ipc id to look for

DESCRIPTION

Look for an id in the ipc ids idr and lock the associated ipc object.
The ipc object is locked on successful exit.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.