git: kernel - Change default kern.ipc.shm_allow_removed=1
Matthew Dillon
dillon at crater.dragonflybsd.org
Tue May 30 12:15:52 PDT 2017
commit 1e1a926738b4e738a38d810ce11252031b1062ab
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date: Tue May 30 12:13:41 2017 -0700
kernel - Change default kern.ipc.shm_allow_removed=1
* Change kern.ipc.shm_allow_removed to default to enabled. This feature
allows a shared memory segment to be located by its shmid after being
deleted, as long as some prior reference to the segment is still active.
* Primarily used by chrome these days, this trick is convenient in that
it allows applications to attach shared memory segments in a manner that
do ensures they are deleted if the application is killed or seg-faults
unexpectedly.
Summary of changes:
sys/kern/sysv_shm.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/1e1a926738b4e738a38d810ce11252031b1062ab
--
DragonFly BSD source repository
More information about the Commits
mailing list