7 Commits

Author	SHA1	Message	Date
Joseph Myers	bfff8b1bec	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
Joseph Myers	f7a9f785e5	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
Joseph Myers	b168057aaa	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
Allan McRae	d4697bc93d	Update copyright notices with scripts/update-copyrights	2014-01-01 22:00:23 +10:00
Roland McGrath	eab55bfb14	Add missing includes to sysdeps/generic/malloc-sysdep.h.	2013-02-05 11:34:06 -08:00
Joseph Myers	568035b787	Update copyright notices with scripts/update-copyrights.	2013-01-02 19:05:09 +00:00
Siddhesh Poyarekar	9fab36eb58	Shrink heap on linux when overcommit_memory == 2 ... Using madvise with MADV_DONTNEED to release memory back to the kernel is not sufficient to change the commit charge accounted against the process on Linux. It is OK however, when overcommit is enabled or is heuristic. However, when overcommit is restricted to a percentage of memory setting the contents of /proc/sys/vm/overcommit_memory as 2, it makes a difference since memory requests will fail. Hence, we do what we do with secure exec binaries, which is to call mmap on the region to be dropped with MAP_FIXED. This internally unmaps the pages in question and reduces the amount of memory accounted against the process.	2012-09-25 14:30:52 +05:30