linux-stable-rt/include
Nick Piggin d0217ac04c mm: fault feedback #1
Change ->fault prototype.  We now return an int, which contains
VM_FAULT_xxx code in the low byte, and FAULT_RET_xxx code in the next byte.
 FAULT_RET_ code tells the VM whether a page was found, whether it has been
locked, and potentially other things.  This is not quite the way he wanted
it yet, but that's changed in the next patch (which requires changes to
arch code).

This means we no longer set VM_CAN_INVALIDATE in the vma in order to say
that a page is locked which requires filemap_nopage to go away (because we
can no longer remain backward compatible without that flag), but we were
going to do that anyway.

struct fault_data is renamed to struct vm_fault as Linus asked. address
is now a void __user * that we should firmly encourage drivers not to use
without really good reason.

The page is now returned via a page pointer in the vm_fault struct.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:41 -07:00
..
acpi
asm-alpha
asm-arm
asm-arm26
asm-avr32 [AVR32] Fix atomic_add_unless() and atomic_sub_unless() 2007-07-18 20:47:04 +02:00
asm-blackfin
asm-cris
asm-frv
asm-generic
asm-h8300
asm-i386 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2007-07-18 10:32:00 -07:00
asm-ia64
asm-m32r
asm-m68k
asm-m68knommu
asm-mips
asm-parisc
asm-powerpc
asm-ppc
asm-s390
asm-sh
asm-sh64
asm-sparc
asm-sparc64
asm-um
asm-v850
asm-x86_64
asm-xtensa
crypto
keys
linux mm: fault feedback #1 2007-07-19 10:04:41 -07:00
math-emu
media
mtd
net
pcmcia
rdma
rxrpc
scsi
sound
video
xen
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