Johannes Weiner 3a13c4d761 x86: finish user fault error path with fatal signal ... The x86 fault handler bails in the middle of error handling when the task has a fatal signal pending. For a subsequent patch this is a problem in OOM situations because it relies on pagefault_out_of_memory() being called even when the task has been killed, to perform proper per-task OOM state unwinding. Shortcutting the fault like this is a rather minor optimization that saves a few instructions in rare cases. Just remove it for user-triggered faults. Use the opportunity to split the fault retry handling from actual fault errors and add locking documentation that reads suprisingly similar to ARM's. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: azurIt <azurit@pobox.sk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-09-12 15:38:01 -07:00
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kmemcheck
amdtopology.c
dump_pagetables.c
extable.c
fault.c	x86: finish user fault error path with fatal signal	2013-09-12 15:38:01 -07:00
gup.c
highmem_32.c
hugetlbpage.c
init_32.c
init_64.c
init.c
iomap_32.c
ioremap.c
kmmio.c
Makefile
memtest.c
mm_internal.h
mmap.c
mmio-mod.c
numa_32.c
numa_64.c
numa_emulation.c
numa_internal.h
numa.c
pageattr-test.c
pageattr.c
pat_internal.h
pat_rbtree.c
pat.c
pf_in.c
pf_in.h
pgtable_32.c
pgtable.c
physaddr.c
physaddr.h
setup_nx.c
srat.c
testmmiotrace.c
tlb.c