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linux/include/asm-ia64
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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
..
sn [IA64-SGI] Shub2 BTE address fix 2006-02-06 09:28:10 -08:00
a.out.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
acpi-ext.h [ACPI] fix IA64 build warning 2005-08-04 22:29:34 -04:00
acpi.h [IA64] Add ACPI based P-state support 2005-08-26 15:09:24 -07:00
agp.h [PATCH] AGP fix for Xen VMM 2005-06-07 12:35:43 -07:00
asmmacro.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
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
bitops.h [FLS64]: generic version 2006-01-03 13:11:06 -08:00
break.h [PATCH] Kprobes/IA64: kdebug die notification mechanism 2005-06-23 09:45:22 -07:00
bug.h [PATCH] remove gcc-2 checks 2006-01-08 20:14:02 -08:00
bugs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
byteorder.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cache.h [PATCH] Kill L1_CACHE_SHIFT_MAX 2006-01-08 20:13:39 -08:00
cacheflush.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
checksum.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat.h [PATCH] ia64: task_pt_regs() 2006-01-12 09:08:58 -08:00
cpu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cputime.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
current.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyclone.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
delay.h [IA64] disable preemption in udelay() 2005-12-16 10:00:24 -08:00
div64.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dma-mapping.h [PATCH] ia64: re-implement dma_get_cache_alignment to avoid EXPORT_SYMBOL 2005-11-07 07:53:23 -08:00
dma.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
elf.h [PATCH] auxiliary vector cleanups 2005-09-07 16:57:21 -07:00
emergency-restart.h [PATCH] Add emergency_restart() 2005-07-26 14:35:41 -07:00
errno.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fcntl.h [PATCH] Clean up struct flock definitions 2005-09-07 16:57:38 -07:00
fpswa.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fpu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
futex.h [PATCH] consolidate asm/futex.h 2006-01-08 20:13:39 -08:00
gcc_intrin.h [IA64] fix fls() 2005-04-21 11:07:59 -07:00
hardirq.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hw_irq.h [PATCH] x86/x86_64: deferred handling of writes to /proc/irqxx/smp_affinity 2005-09-07 16:57:15 -07:00
ia32.h [IA64] Change SET_PERSONALITY to comply with comment in binfmt_elf.c. 2005-12-06 09:12:34 -08:00
ia64regs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ide.h [PATCH] ia64: drop arch-specific IDE MAX_HWIFS definition 2006-02-03 08:32:11 -08:00
intel_intrin.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
intrinsics.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
io.h [PATCH] /dev/mem: validate mmap requests 2006-01-08 20:14:02 -08:00
ioctl.h [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
ioctls.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iosapic.h [IA64] Minor cleanups - remove unnecessary function prototype in iosapic.h 2005-09-07 14:00:40 -07:00
ipcbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.h [IA64] Manual merge fix for 3 files 2005-09-08 14:27:13 -07:00
kdebug.h [IA64] Extend notify_die() hooks for IA64 2005-11-07 11:27:13 -08:00
kmap_types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kprobes.h [IA64] prevent accidental modification of args in jprobe handler 2006-01-13 14:45:21 -08:00
kregs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
linkage.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
local.h [IA64] Fix missing parameter for local_add/sub 2005-12-07 11:30:11 -08:00
machvec.h Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2005-10-28 21:09:26 -07:00
machvec_dig.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machvec_hpsim.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machvec_hpzx1.h [IA64] more robust zx1/sx1000 machvec support 2005-09-14 16:22:11 -07:00
machvec_hpzx1_swiotlb.h [IA64] more robust zx1/sx1000 machvec support 2005-09-14 16:22:11 -07:00
machvec_init.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machvec_sn2.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mc146818rtc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca.h [IA64] Wire in the MCA/INIT handler stacks 2005-09-22 13:24:19 -07:00
mca_asm.h [PATCH] MCA/INIT: use per cpu stacks 2005-09-11 14:08:41 -07:00
meminit.h Pull sparsemem-v5 into release branch 2005-10-28 14:32:56 -07:00
mman.h [PATCH] madvise MADV_DONTFORK/MADV_DOFORK 2006-02-14 16:09:34 -08:00
mmu.h [IA64] Fix race in mm-context wrap-around logic. 2005-08-12 15:05:21 -07:00
mmu_context.h [IA64] make mmu_context.h and tlb.c 80-column friendly 2005-11-03 14:43:50 -08:00
mmzone.h [PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM 2005-10-04 13:21:13 -07:00
module.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
msgbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
msi.h [PATCH] PCI: Change MSI to use physical delivery mode always 2005-11-10 16:09:18 -08:00
mutex.h [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
namei.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nodedata.h [PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM 2005-10-04 13:21:13 -07:00
numa.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
numnodes.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
page.h [IA64] - Make pfn_valid more precise for SGI Altix systems 2005-11-29 09:24:10 -08:00
pal.h [IA64] pal cache flush patch 2006-01-16 15:44:53 -08:00
param.h [PATCH] ia64: Selectable Timer Interrupt Frequency 2005-06-23 09:45:10 -07:00
parport.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
patch.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci.h [PATCH] Make sparc64 use setup-res.c 2005-09-08 14:57:25 -07:00
percpu.h [PATCH] adjust per_cpu definition in non-SMP case 2005-06-23 09:45:28 -07:00
perfmon.h [IA64] alternate perfmon handler 2005-05-18 16:14:30 -07:00
perfmon_default_smpl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pgalloc.h [IA64] 4-level page tables 2005-11-11 09:37:29 -08:00
pgtable.h [IA64] 4-level page tables 2005-11-11 09:37:29 -08:00
poll.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
posix_types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
processor.h [IA64] avoid broken SAL_CACHE_FLUSH implementations 2006-02-02 13:25:54 -08:00
ptrace.h [PATCH] ia64: task_pt_regs() 2006-01-12 09:08:58 -08:00
ptrace_offsets.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
resource.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rse.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rwsem.h [PATCH] add sem_is_read/write_locked() 2005-10-29 21:40:35 -07:00
sal.h [IA64] avoid broken SAL_CACHE_FLUSH implementations 2006-02-02 13:25:54 -08:00
scatterlist.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sections.h [PATCH] kprobes/ia64: refuse kprobe on ivt code 2005-06-27 15:23:54 -07:00
segment.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
semaphore.h [IA64] Fix bug in ia64 specific down() function 2006-01-17 14:04:00 -08:00
sembuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
serial.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
shmbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
shmparam.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
siginfo.h [PATCH] consolidate SIGEV_PAD_SIZE 2005-05-01 08:59:08 -07:00
signal.h [PATCH] asm/signal.h unification 2005-05-04 07:33:15 -07:00
smp.h [PATCH] smp_processor_id() cleanup 2005-06-21 18:46:13 -07:00
socket.h [NET]: Introduce SO_{SND,RCV}BUFFORCE socket options 2005-08-29 15:31:35 -07:00
sockios.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sparsemem.h [PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM 2005-10-04 13:21:13 -07:00
spinlock.h [PATCH] remove gcc-2 checks 2006-01-08 20:14:02 -08:00
spinlock_types.h [PATCH] spinlock consolidation 2005-09-10 10:06:21 -07:00
stat.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
statfs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
string.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
suspend.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
system.h [IA64] remove staled comments in asm/system.h 2006-02-02 13:20:42 -08:00
termbits.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
termios.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
thread_info.h [IA64] Handle debug traps in fsys mode 2006-01-13 14:16:08 -08:00
timex.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tlb.h [PATCH] mm: tlb_finish_mmu forget rss 2005-10-29 21:40:37 -07:00
tlbflush.h [IA64] Use bitmaps for efficient context allocation/free 2005-10-31 14:36:05 -08:00
topology.h [PATCH] Export cpu topology in sysfs 2006-02-03 08:32:09 -08:00
types.h [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
uaccess.h [PATCH] ia64 basic __user annotations 2005-09-29 08:46:27 -07:00
ucontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unaligned.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
uncached.h [PATCH] ia64 uncached alloc 2005-06-21 18:46:18 -07:00
unistd.h [IA64] unshare system call registration for ia64 2006-02-08 15:43:38 -08:00
unwind.h [IA64] MCA/INIT: remove obsolete unwind code 2005-09-11 14:09:34 -07:00
user.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ustack.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vga.h [IA64-SGI] pcdp: add PCDP pci interface support 2005-06-28 09:09:06 -07:00
xor.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00