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6cb8f91320
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Christoph Lameter 6cb8f91320 Slab allocators: consistent ZERO_SIZE_PTR support and NULL result semantics 
Define ZERO_OR_NULL_PTR macro to be able to remove the checks from the
allocators.  Move ZERO_SIZE_PTR related stuff into slab.h.

Make ZERO_SIZE_PTR work for all slab allocators and get rid of the
WARN_ON_ONCE(size == 0) that is still remaining in SLAB.

Make slub return NULL like the other allocators if a too large memory segment
is requested via __kmalloc.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:01 -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 Slab allocators: consistent ZERO_SIZE_PTR support and NULL result semantics 2007-07-17 10:23:01 -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 IB/cm: Include HCA ACK delay in local ACK timeout 2007-07-10 21:50:05 -07:00
rxrpc
scsi [SCSI] Remove unused method scsi_device_cancel 2007-07-14 16:01:16 -05:00
sound
video
Kbuild