A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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android_kernel_motorola_sm6375/include/asm-cris
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Filename Latest commit message Latest commit date
Michael S. Tsirkin f822566165 [PATCH] madvise MADV_DONTFORK/MADV_DOFORK 
Currently, copy-on-write may change the physical address of a page even if the
user requested that the page is pinned in memory (either by mlock or by
get_user_pages).  This happens if the process forks meanwhile, and the parent
writes to that page.  As a result, the page is orphaned: in case of
get_user_pages, the application will never see any data hardware DMA's into
this page after the COW.  In case of mlock'd memory, the parent is not getting
the realtime/security benefits of mlock.

In particular, this affects the Infiniband modules which do DMA from and into
user pages all the time.

This patch adds madvise options to control whether memory range is inherited
across fork.  Useful e.g.  for when hardware is doing DMA from/into these
pages.  Could also be useful to an application wanting to speed up its forks
by cutting large areas out of consideration.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Acked-by: Hugh Dickins <hugh@veritas.com>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-14 16:09:34 -08:00
..
arch-v10 [PATCH] cris: fix KSTK_EIP 2006-01-12 09:08:58 -08:00
arch-v32 [PATCH] cris: fix KSTK_EIP 2006-01-12 09:08:58 -08:00
a.out.h
atomic.h [PATCH] mutex subsystem, add atomic_xchg() to all arches 2006-01-09 15:59:17 -08:00
auxvec.h [PATCH] auxiliary vector cleanups 2005-09-07 16:57:21 -07:00
axisflashmap.h [PATCH] CRIS update: misc patches 2005-07-27 16:26:00 -07:00
bitops.h [PATCH] include/asm-*/bitops.h: fix more "~0UL >> size" typos 2006-02-03 08:32:02 -08:00
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h
checksum.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
cputime.h
current.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
delay.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
div64.h
dma-mapping.h [PATCH] Kill L1_CACHE_SHIFT_MAX 2006-01-08 20:13:39 -08:00
dma.h [PATCH] CRIS update: pci 2005-07-27 16:26:00 -07:00
elf.h [PATCH] CRIS update: arch split 2005-07-27 16:25:59 -07:00
emergency-restart.h [PATCH] Add emergency_restart() 2005-07-26 14:35:41 -07:00
errno.h
eshlibld.h
ethernet.h
etraxgpio.h [PATCH] CRIS update: arch split 2005-07-27 16:25:59 -07:00
etraxi2c.h
fasttimer.h
fcntl.h [PATCH] Clean up struct flock64 definitions 2005-09-07 16:57:38 -07:00
futex.h [PATCH] consolidate asm/futex.h 2006-01-08 20:13:39 -08:00
hardirq.h [PATCH] CRIS update: IRQ 2005-07-27 16:26:00 -07:00
hw_irq.h [PATCH] CRIS update: IRQ 2005-07-27 16:26:00 -07:00
ide.h [PATCH] CRIS update: drivers 2005-07-27 16:25:59 -07:00
io.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
ioctl.h [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
ioctls.h
ipc.h
ipcbuf.h
irq.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
kmap_types.h [PATCH] CRIS update: updates for 2.6.12 2005-07-27 16:26:01 -07:00
linkage.h
local.h
mman.h [PATCH] madvise MADV_DONTFORK/MADV_DOFORK 2006-02-14 16:09:34 -08:00
mmu.h
mmu_context.h [PATCH] CRIS update: SMP 2005-07-27 16:26:01 -07:00
module.h
msgbuf.h
mutex.h [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
namei.h
page.h [PATCH] mm: consolidate get_order 2005-09-05 00:05:39 -07:00
param.h
pci.h [PATCH] CRIS update: pci 2005-07-27 16:26:00 -07:00
percpu.h
pgalloc.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
pgtable.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
poll.h
posix_types.h
processor.h [PATCH] cris: task_pt_regs() 2006-01-12 09:08:58 -08:00
ptrace.h [PATCH] CRIS update: profiler 2005-07-27 16:26:00 -07:00
resource.h
rs485.h
rtc.h
scatterlist.h
sections.h
segment.h
semaphore-helper.h
semaphore.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
sembuf.h
setup.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h [PATCH] asm/signal.h unification 2005-05-04 07:33:15 -07:00
smp.h [PATCH] CRIS update: SMP 2005-07-27 16:26:01 -07:00
socket.h [NET]: Introduce SO_{SND,RCV}BUFFORCE socket options 2005-08-29 15:31:35 -07:00
sockios.h
spinlock.h [PATCH] CRIS update: SMP 2005-07-27 16:26:01 -07:00
stat.h
statfs.h
string.h
sync_serial.h [PATCH] CRIS update: synchronous serial port driver 2005-07-27 16:26:01 -07:00
system.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
termbits.h [PATCH] CRIS update: synchronous serial port driver 2005-07-27 16:26:01 -07:00
termios.h
thread_info.h [PATCH] death of get_thread_info/put_thread_info 2006-01-12 09:08:59 -08:00
timex.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
tlb.h
tlbflush.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
topology.h
types.h [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
uaccess.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
ucontext.h
unaligned.h
unistd.h [PATCH] cris: "extern inline" -> "static inline" 2005-11-07 07:53:30 -08:00
user.h