signal: Split up __sigqueue_alloc()

To cure the SIG_IGN handling for posix interval timers, the preallocated
sigqueue needs to be embedded into struct k_itimer to prevent life time
races of all sorts.

Reorganize __sigqueue_alloc() so the ucounts retrieval and the
initialization can be used independently.

No functional change.

Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Frederic Weisbecker <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lore.kernel.org/all/[email protected]

0 files changed, 0 insertions, 0 deletions