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linux/mm
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Jie Zhang 7959722b95 NOMMU: Use copy_*_user_page() in access_process_vm() 
The MMU code uses the copy_*_user_page() variants in access_process_vm()
rather than copy_*_user() as the former includes an icache flush.  This
is important when doing things like setting software breakpoints with
gdb.  So switch the NOMMU code over to do the same.

This patch makes the reasonable assumption that copy_from_user_page()
won't fail - which is probably fine, as we've checked the VMA from which
we're copying is usable, and the copy is not allowed to cross VMAs.  The
one case where it might go wrong is if the VMA is a device rather than
RAM, and that device returns an error which - in which case rubbish will
be returned rather than EIO.

Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: David McCullough <david_mccullough@mcafee.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-06 18:16:02 -08:00
..
backing-dev.c flusher: Fix PF_FROZEN race 2009-12-03 13:49:43 +01:00
bootmem.c mm/bootmem.c: properly __init-annotate helper functions 2009-12-15 08:53:20 -08:00
bounce.c
debug-pagealloc.c
dmapool.c
fadvise.c
failslab.c
filemap_xip.c const: mark struct vm_struct_operations 2009-09-27 11:39:25 -07:00
filemap.c direct I/O fallback sync simplification 2009-12-16 12:16:50 -05:00
fremap.c
highmem.c highmem: Fix debug_kmap_atomic() to also handle KM_IRQ_PTE, KM_NMI, and KM_NMI_PTE 2009-11-10 04:15:47 +01:00
hugetlb.c hugetlb: abort a hugepage pool resize if a signal is pending 2009-12-15 08:53:24 -08:00
hwpoison-inject.c HWPOISON: Don't do early filtering if filter is disabled 2009-12-16 12:20:01 +01:00
init-mm.c
internal.h HWPOISON: add an interface to switch off/on all the page filters 2009-12-16 12:19:59 +01:00
Kconfig HWPOISON: Add PROC_FS dependency to hwpoison injector v2 2009-12-21 19:56:42 +01:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c Merge branch 'kmemleak' of git://linux-arm.org/linux-2.6 2009-12-17 16:00:19 -08:00
ksm.c ksm: remove unswappable max_kernel_pages 2009-12-15 08:53:20 -08:00
maccess.c
madvise.c HWPOISON: Add a madvise() injector for soft page offlining 2009-12-16 12:20:00 +01:00
Makefile make generic_acl slightly more generic 2009-12-16 12:16:49 -05:00
memcontrol.c Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6 2009-12-16 12:36:49 -08:00
memory_hotplug.c mm: fix section mismatch in memory_hotplug.c 2009-12-15 08:53:20 -08:00
memory-failure.c HWPOISON: Add PROC_FS dependency to hwpoison injector v2 2009-12-21 19:56:42 +01:00
memory.c Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6 2009-12-16 12:36:49 -08:00
mempolicy.c ksm: memory hotremove migration only 2009-12-15 08:53:20 -08:00
mempool.c
migrate.c mm: remove unevictable_migrate_page function 2009-12-15 08:53:23 -08:00
mincore.c mm: hugetlb: fix hugepage memory leak in mincore() 2009-12-15 08:53:24 -08:00
mlock.c mlock: replace stale comments in munlock_vma_page() 2009-12-15 08:53:23 -08:00
mm_init.c
mmap.c mm: move sys_mmap_pgoff from util.c 2009-12-30 12:23:27 -08:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c Take arch_mmap_check() into get_unmapped_area() 2009-12-11 06:44:58 -05:00
msync.c
nommu.c NOMMU: Use copy_*_user_page() in access_process_vm() 2010-01-06 18:16:02 -08:00
oom_kill.c memcg: avoid oom-killing innocent task in case of use_hierarchy 2009-12-16 07:20:07 -08:00
page_alloc.c SYSCTL: Add a mutex to the page_alloc zone order sysctl 2009-12-23 21:01:16 +01:00
page_cgroup.c
page_io.c swap: rework map_swap_page() again 2009-12-15 08:53:16 -08:00
page_isolation.c
page-writeback.c writeback: remove unused nonblocking and congestion checks 2009-12-03 13:54:25 +01:00
pagewalk.c mm hugetlb: add hugepage support to pagemap 2009-12-15 08:53:24 -08:00
percpu.c Merge branch 'for-linus' into for-next 2009-12-08 10:02:12 +09:00
prio_tree.c
quicklist.c cpumask: use new-style cpumask ops in mm/quicklist. 2009-09-24 09:34:52 +09:30
readahead.c readahead: add blk_run_backing_dev 2009-12-17 15:45:32 -08:00
rmap.c memcg: make memcg's file mapped consistent with global VM 2009-12-16 07:20:07 -08:00
shmem.c Fix breakage in shmem.c 2009-12-16 19:48:48 -05:00
slab.c SLAB: Fix lockdep annotation breakage 2009-12-28 20:57:27 +02:00
slob.c
slub.c Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-14 10:13:22 -08:00
sparse-vmemmap.c
sparse.c
swap_state.c
swap.c
swapfile.c ksm: let shared pages be swappable 2009-12-15 08:53:19 -08:00
thrash.c
truncate.c memcg: coalesce uncharge during unmap/truncate 2009-12-16 07:20:07 -08:00
util.c mm: move sys_mmap_pgoff from util.c 2009-12-30 12:23:27 -08:00
vmalloc.c vmalloc(): adjust gfp mask passed on nested vmalloc() invocation 2009-12-15 08:53:13 -08:00
vmscan.c vmscan: simplify code 2009-12-15 08:53:21 -08:00
vmstat.c vmscan: stop kswapd waiting on congestion when the min watermark is not being met 2009-12-15 08:53:16 -08:00