glibc.git - Mirror of https://sourceware.org/git/glibc.git

Age	Commit message (Collapse)	Author
2016-01-04	Update copyright dates with scripts/update-copyrights.	Joseph Myers

2015-01-02	Update copyright dates with scripts/update-copyrights.	Joseph Myers

2014-01-01	Update copyright notices with scripts/update-copyrights	Allan McRae

2013-01-17	Add HAVE_MREMAP for mremap usage	Pino Toscano
	Introduce (only on Linux) and use a HAVE_MREMAP symbol to advertize mremap availability. Move the malloc-sysdep.h include from arena.c to malloc.c, since what is provided by malloc-sysdep.h is needed earlier in malloc.c, before the inclusion of arena.c.
2013-01-02	Update copyright notices with scripts/update-copyrights.	Joseph Myers

2012-09-25	Shrink heap on linux when overcommit_memory == 2	Siddhesh Poyarekar
	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.