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move p_sigqueue to the end of struct proc

Description

move p_sigqueue to the end of struct proc

In order to preserve KBI in stable branches, replace the existing
p_sigqueue slot with padding and move the expanded (as of r315949)
p_sigqueue to the end of the struct.

This is a repeat of r317529 (which concerned td_sigqueue in struct
thread) for p_sigqueue in struct proc.

Virtualbox modules (and possibly others) are affected without this fix.

Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D10843

Details

Committed
badgerMay 23 2017, 12:40 PM
Reviewer
kib
Differential Revision
D10843: move p_sigqueue to the end of struct proc
Parents
rS318742: MFC r318021,r318251:
Branches
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Tags
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