Mikulas Patocka a09a79f668 Don't lock guardpage if the stack is growing up ... Linux kernel excludes guard page when performing mlock on a VMA with down-growing stack. However, some architectures have up-growing stack and locking the guard page should be excluded in this case too. This patch fixes lvm2 on PA-RISC (and possibly other architectures with up-growing stack). lvm2 calculates number of used pages when locking and when unlocking and reports an internal error if the numbers mismatch. [ Patch changed fairly extensively to also fix /proc/<pid>/maps for the grows-up case, and to move things around a bit to clean it all up and share the infrstructure with the /proc bits. Tested on ia64 that has both grow-up and grow-down segments - Linus ] Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Tested-by: Tony Luck <tony.luck@gmail.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-05-09 16:22:07 -07:00
..
array.c	proc: protect mm start_code/end_code in /proc/pid/stat	2011-03-23 19:46:37 -07:00
base.c	proc: do proper range check on readdir offset	2011-04-18 10:36:54 -07:00
cmdline.c
consoles.c
cpuinfo.c
devices.c
generic.c	proc: make struct proc_dir_entry::namelen unsigned int	2011-03-23 19:46:37 -07:00
inode.c	procfs: kill the global proc_mnt variable	2011-03-23 19:46:58 -07:00
internal.h	procfs: kill the global proc_mnt variable	2011-03-23 19:46:58 -07:00
interrupts.c
Kconfig
kcore.c
kmsg.c
loadavg.c
Makefile
meminfo.c
mmu.c
nommu.c
page.c
proc_devtree.c	of/flattree: Drop an uninteresting message to pr_debug level	2011-03-02 13:45:18 -07:00
proc_net.c
proc_sysctl.c	Merge branch 'next' into for-linus	2011-03-16 09:41:17 +11:00
proc_tty.c
root.c	procfs: kill the global proc_mnt variable	2011-03-23 19:46:58 -07:00
softirqs.c
stat.c
task_mmu.c	Don't lock guardpage if the stack is growing up	2011-05-09 16:22:07 -07:00
task_nommu.c	report errors in /proc/*/*map* sanely	2011-03-23 16:36:50 -04:00
uptime.c
version.c
vmcore.c