HATAYAMA Daisuke fad1a86e25 procfs: call default get_unmapped_area on MMU-present architectures ... Commit c4fe244857 ("sparc: fix PCI device proc file mmap(2)") added proc_reg_get_unmapped_area in proc_reg_file_ops and proc_reg_file_ops_no_compat, by which now mmap always returns EIO if get_unmapped_area method is not defined for the target procfs file, which causes regression of mmap on /proc/vmcore. To address this issue, like get_unmapped_area(), call default current->mm->get_unmapped_area on MMU-present architectures if pde->proc_fops->get_unmapped_area, i.e. the one in actual file operation in the procfs file, is not defined. Reported-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: David S. Miller <davem@davemloft.net> Tested-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-10-16 21:35:53 -07:00
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array.c
base.c
cmdline.c
consoles.c
cpuinfo.c
devices.c
fd.c	proc: make proc_fd_permission() thread-friendly	2013-09-11 15:59:03 -07:00
fd.h
generic.c
inode.c	procfs: call default get_unmapped_area on MMU-present architectures	2013-10-16 21:35:53 -07:00
internal.h
interrupts.c
Kconfig
kcore.c
kmsg.c
loadavg.c
Makefile
meminfo.c	thp: account anon transparent huge pages into NR_ANON_PAGES	2013-09-12 15:38:03 -07:00
namespaces.c
nommu.c
page.c
proc_devtree.c
proc_net.c
proc_sysctl.c
proc_tty.c
root.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2013-09-07 14:35:32 -07:00
self.c
softirqs.c
stat.c
task_mmu.c	mm: /proc/pid/pagemap: inspect _PAGE_SOFT_DIRTY only on present pages	2013-10-16 21:35:52 -07:00
task_nommu.c
uptime.c
version.c
vmcore.c	vmcore: enable /proc/vmcore mmap for s390	2013-09-11 15:59:14 -07:00