Christoph Lameter 272c1d21d6 SLUB: return ZERO_SIZE_PTR for kmalloc(0) ... Instead of returning the smallest available object return ZERO_SIZE_PTR. A ZERO_SIZE_PTR can be legitimately used as an object pointer as long as it is not deferenced. The dereference of ZERO_SIZE_PTR causes a distinctive fault. kfree can handle a ZERO_SIZE_PTR in the same way as NULL. This enables functions to use zero sized object. e.g. n = number of objects. objects = kmalloc(n * sizeof(object)); for (i = 0; i < n; i++) objects[i].x = y; kfree(objects); 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>		2007-06-08 17:23:33 -07:00
..
acpi	Pull osi-now into release branch	2007-06-02 01:02:09 -04:00
asm-alpha	ALPHA: misc fixes	2007-06-01 08:18:29 -07:00
asm-arm	[ARM] 4421/1: AT91: Value of _KEY fields.	2007-06-03 17:52:35 +01:00
asm-arm26	[ARM] use __used attribute	2007-05-30 13:15:06 +01:00
asm-avr32	[AVR32] Implement platform hooks for atmel_lcdfb driver	2007-05-15 14:13:27 +02:00
asm-blackfin	Blackfin arch: Change NO_ACCESS_CHECK to ACCESS_CHECK	2007-05-21 09:50:23 -07:00
asm-cris	Consolidate asm/poll.h	2007-05-11 08:29:34 -07:00
asm-frv	frv: build fix	2007-06-07 17:00:25 -07:00
asm-generic	sparc64: fix alignment bug in linker definition script	2007-05-29 21:29:00 +02:00
asm-h8300	h8300 trival patches	2007-06-01 08:18:29 -07:00
asm-i386	i386: fix early usage of atomic_add_return and local_add_return on real i386	2007-05-23 20:14:15 -07:00
asm-ia64	[IA64] Cleanup acpi header to reuse the generic _PDC defines	2007-05-24 10:15:06 -07:00
asm-m32r	m32r: __xchg() should be always_inline	2007-05-15 18:56:37 -07:00
asm-m68k	m68k: discontinuous memory support	2007-05-31 07:58:14 -07:00
asm-m68knommu	Remove tas()	2007-05-08 11:15:20 -07:00
asm-mips	[MIPS] Drop __ARCH_WANT_SYS_FADVISE64	2007-06-06 19:34:32 +01:00
asm-parisc	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
asm-powerpc	[POWERPC] Fix return from pte_alloc_one() in out-of-memory case	2007-06-02 21:01:56 +10:00
asm-ppc	Merge branch 'linux-2.6'	2007-05-10 21:08:37 +10:00
asm-s390	[S390] Wire up signald, timerfd and eventfd syscalls.	2007-05-21 11:25:28 +02:00
asm-sh	sh: Fix se73180 platform device registration.	2007-06-04 11:07:23 +09:00
asm-sh64	sh64: generic quicklist support.	2007-05-14 09:55:35 +09:00
asm-sparc	[SPARC]: Emulate cmpxchg like parisc	2007-05-29 02:51:13 -07:00
asm-sparc64	[SPARC64]: Fill in gaps in non-PCI dma_*() NOP implementation.	2007-06-04 23:32:23 -07:00
asm-um	uml: iRQ stacks	2007-05-11 08:29:34 -07:00
asm-v850	Consolidate asm/poll.h	2007-05-11 08:29:34 -07:00
asm-x86_64	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
asm-xtensa	Xtensa: use asm-generic/fcntl.h	2007-05-31 20:18:25 -07:00
crypto	[CRYPTO] cryptd: Add software async crypto daemon	2007-05-02 14:38:32 +10:00
keys	[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both	2007-04-26 15:48:28 -07:00
linux	SLUB: return ZERO_SIZE_PTR for kmalloc(0)	2007-06-08 17:23:33 -07:00
math-emu	Delete unused header file math-emu/extended.h	2007-05-08 11:15:05 -07:00
media	V4L/DVB (5592): DMA: Correctly free resources on error, sync PCI streamed data	2007-05-09 10:12:42 -03:00
mtd	UBI: Unsorted Block Images	2007-04-27 14:23:33 +03:00
net	xfrm: Add security check before flushing SAD/SPD	2007-06-07 13:42:46 -07:00
pcmcia	add new_id to PCMCIA drivers	2007-05-07 12:12:50 -07:00
rdma	Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband	2007-05-21 16:19:32 -07:00
rxrpc	[AF_RXRPC]: Delete the old RxRPC code.	2007-04-26 15:55:48 -07:00
scsi	[SCSI] sas_scsi_host: Convert to use the kthread API	2007-05-06 09:33:17 -05:00
sound	[ALSA] version 1.0.14	2007-05-31 11:03:27 +02:00
video	atmel_lcdfb: AT91/AT32 LCD Controller framebuffer driver	2007-05-11 08:29:37 -07:00
Kbuild