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linux-next/include
Dan Williams 0036731c88 async_tx: kill tx_set_src and tx_set_dest methods
The tx_set_src and tx_set_dest methods were originally implemented to allow
an array of addresses to be passed down from async_xor to the dmaengine
driver while minimizing stack overhead.  Removing these methods allows
drivers to have all transaction parameters available at 'prep' time, saves
two function pointers in struct dma_async_tx_descriptor, and reduces the
number of indirect branches..

A consequence of moving this data to the 'prep' routine is that
multi-source routines like async_xor need temporary storage to convert an
array of linear addresses into an array of dma addresses.  In order to keep
the same stack footprint of the previous implementation the input array is
reused as storage for the dma addresses.  This requires that
sizeof(dma_addr_t) be less than or equal to sizeof(void *).  As a
consequence CONFIG_DMADEVICES now depends on !CONFIG_HIGHMEM64G.  It also
requires that drivers be able to make descriptor resources available when
the 'prep' routine is polled.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
2008-02-06 10:12:17 -07:00
..
acpi include/acpi/: Spelling fixes 2008-02-03 17:07:16 +02:00
asm-alpha alpha: fix warning by fixing flush_tlb_kernel_range() 2008-02-05 09:44:22 -08:00
asm-arm add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-avr32 Fix timerfd breakage on avr32 2008-02-05 14:37:15 -08:00
asm-blackfin [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-cris cris: remove unused __dummy, CONST_ADDR and ADDR from bitops.h 2008-02-05 09:44:24 -08:00
asm-frv timerfd: fix remaining architectures 2008-02-05 14:37:15 -08:00
asm-generic add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-h8300 [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-ia64 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2008-02-05 10:24:52 -08:00
asm-m32r timerfd: fix remaining architectures 2008-02-05 14:37:15 -08:00
asm-m68k mac68k: remove dead code 2008-02-05 09:44:24 -08:00
asm-m68knommu m68knomu: remove dead config symbols from m68knomu code 2008-02-05 09:44:21 -08:00
asm-mips add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-parisc add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-powerpc ppc: fix #ifdef-s in mediabay driver (take 2) 2008-02-06 02:57:50 +01:00
asm-ppc add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-s390 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2008-02-05 10:11:02 -08:00
asm-sh timerfd: fix remaining architectures 2008-02-05 14:37:15 -08:00
asm-sparc add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-sparc64 add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-um uml: LDT mutex conversion 2008-02-05 09:44:31 -08:00
asm-v850 [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-x86 add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-xtensa add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
crypto [CRYPTO] api: Include sched.h for cond_resched in scatterwalk.h 2008-01-11 08:16:59 +11:00
keys
linux async_tx: kill tx_set_src and tx_set_dest methods 2008-02-06 10:12:17 -07:00
math-emu
media include/media/: Spelling fixes 2008-02-03 17:19:47 +02:00
mtd
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-02-05 10:09:07 -08:00
pcmcia pcmcia: replace kio_addr_t with unsigned int everywhere 2008-02-05 09:44:08 -08:00
rdma RDMA/cma: add support for rdma_migrate_id() 2008-01-25 14:15:32 -08:00
rxrpc
scsi include/scsi/: Spelling fixes 2008-02-03 17:47:00 +02:00
sound [ALSA] version 1.0.16rc2 2008-01-31 17:40:18 +01:00
video
xen x86: page.h: make pte_t a union to always include 2008-01-30 13:32:57 +01:00
Kbuild