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Christoph Lameter b5fab14e5d Add VM_BUG_ON in case someone uses page_mapping on a slab page 
Detect slab objects being passed to the page oriented functions of the VM.

It is not sufficient to simply return NULL because the functions calling
page_mapping may depend on other items of the page_struct also to be setup
properly.  Moreover slab object may not be properly aligned.  The page
oriented functions of the VM expect to operate on page aligned, page sized
objects.  Operations on object straddling page boundaries may only affect the
objects partially which may lead to surprising results.

It is better to detect eventually remaining uses and eliminate them.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:02 -07:00
..
acpi
asm-alpha Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-arm mm: remove ptep_establish() 2007-07-17 10:22:59 -07:00
asm-arm26 dma-mapping: prevent dma dependent code from linking on !HAS_DMA archs 2007-07-16 09:05:45 -07:00
asm-avr32 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2007-07-16 17:48:54 -07:00
asm-blackfin Blackfin arch: Add peripheral io API to gpio header file 2007-07-12 17:06:45 +08:00
asm-cris Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-frv mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty 2007-07-17 10:22:59 -07:00
asm-generic mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty 2007-07-17 10:22:59 -07:00
asm-h8300 Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-i386 Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-ia64 Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-m32r Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-m68k Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block 2007-07-16 10:48:20 -07:00
asm-m68knommu Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-mips Introduce compat_u64 and compat_s64 types 2007-07-16 09:05:48 -07:00
asm-parisc mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty 2007-07-17 10:22:59 -07:00
asm-powerpc mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty 2007-07-17 10:22:59 -07:00
asm-ppc mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty 2007-07-17 10:22:59 -07:00
asm-s390 Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-sh Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6 2007-07-16 10:32:02 -07:00
asm-sh64 page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-sparc page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-sparc64 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-07-16 10:45:23 -07:00
asm-um Add generic exit-time stack-depth checking to CONFIG_DEBUG_STACK_USAGE 2007-07-16 09:05:38 -07:00
asm-v850 v850: enable arbitary speed tty ioctls 2007-07-16 09:05:39 -07:00
asm-x86_64 Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
asm-xtensa mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty 2007-07-17 10:22:59 -07:00
crypto
keys
linux Add VM_BUG_ON in case someone uses page_mapping on a slab page 2007-07-17 10:23:02 -07:00
math-emu
media
mtd
net Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2007-07-15 16:50:46 -07:00
pcmcia
rdma
rxrpc
scsi [SCSI] Remove unused method scsi_device_cancel 2007-07-14 16:01:16 -05:00
sound
video
Kbuild