Stephen Smalley fec839cf17 libselinux: simplify procattr cache ... https://github.com/systemd/systemd/issues/475 identified a problem in libselinux with using getpid(3) rather than getpid(2) due to direct use of the clone() system call by systemd. We could change libselinux to use getpid(2) instead, but this would impose a getpid(2) system call overhead on each get*con() or set*con() call. Rather than do this, we can instead simplify the procattr cache and get rid of the caching of the pid and tid entirely, along with the atfork handler. With commit 3430519109 ("use /proc/thread-self when available"), we only need the tid when on Linux < 3.17, so we can just always call gettid() in that case (as done prior to the procattr cache) and drop the cached tid. The cached pid and atfork handlers were only needed to reset the cached tid, so those can also be dropped. The rest of the cached attributes are not reset by the kernel on fork, only on exec, so we do not need to flush them upon fork/clone. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>		2015-07-20 12:56:01 -04:00
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include	libselinux: Add const to selinux_opt for label backends.	2015-07-10 12:30:09 -04:00
man	libselinux: Add const to selinux_opt for label backends.	2015-07-10 12:30:09 -04:00
src	libselinux: simplify procattr cache	2015-07-20 12:56:01 -04:00
utils	libselinux: Fix binary file labels for regexes with metachars	2015-07-06 11:09:12 -04:00
ChangeLog	Update libselinux ChangeLog.	2015-07-13 09:23:53 -04:00
LICENSE	initial import from svn trunk revision 2950	2008-08-19 15:30:36 -04:00
Makefile	libselinux: Refactor rpm_execcon() into a new setexecfilecon()	2014-01-06 14:06:03 -05:00
VERSION	Bump to final release	2015-02-02 09:38:10 -05:00