Ed L. Cashin e407a7f6cd aoe: zero copy write 1 of 2 ...

Avoid memory copy on writes.
(This patch depends on fixes in patch 9 to follow.)

Although skb->len should not be set when working with linear skbuffs,
the skb->tail pointer maintained by skb_put/skb_trim is not relevant
to what happens when the skb_fill_page_desc function is called.  This
issue was raised without comment in linux-kernel and netdev earlier
this month:

  http://thread.gmane.org/gmane.linux.kernel/446474/
  http://thread.gmane.org/gmane.linux.network/45444/

So until there is something analogous to skb_put that works for
zero-copy write skbuffs, we will do what the other callers of
skb_fill_page_desc are doing.

Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2006-10-18 12:53:50 -07:00

..

aoe

aoe: zero copy write 1 of 2

2006-10-18 12:53:50 -07:00

paride

[PATCH] completions: lockdep annotate on stack completions

2006-10-01 00:39:24 -07:00

acsi_slm.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

acsi.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

amiflop.c

[PATCH] amiga_floppy_init() in non-modular case

2006-10-11 11:17:07 -07:00

ataflop.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

cciss_cmd.h

[PATCH] cciss: support for >2TB logical volumes

2006-10-01 00:39:20 -07:00

cciss_scsi.c

[PATCH] completions: lockdep annotate on stack completions

2006-10-01 00:39:24 -07:00

cciss_scsi.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

cciss.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

cciss.h

[PATCH] cciss: support for >2TB logical volumes

2006-10-01 00:39:20 -07:00

cpqarray.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

cpqarray.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

cryptoloop.c

[BLOCK] cryptoloop: Use block ciphers where applicable

2006-09-21 11:45:53 +10:00

DAC960.c

Various drivers' irq handlers: kill dead code, needless casts

2006-10-06 15:00:58 -04:00

DAC960.h

[PATCH] DAC960: use memmove for overlapping areas

2006-10-11 11:14:23 -07:00

floppy.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

ida_cmd.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ida_ioctl.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

Kconfig

Fix bytes <-> kilobytes typo in Kconfig for ramdisk

2006-10-03 23:40:34 +02:00

loop.c

[PATCH] __user annotations: loop.c

2006-10-10 15:37:23 -07:00

Makefile

[PATCH] block: floppy98 removal, really.

2006-03-24 07:33:26 -08:00

nbd.c

[PATCH] Split struct request ->flags into two parts

2006-09-30 20:23:37 +02:00

pktcdvd.c

[PATCH] pktcdvd: rename a variable for better readability

2006-10-04 07:55:14 -07:00

ps2esdi.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

rd.c

[PATCH] rd: memory leak on rd_init() failure

2006-10-17 08:18:48 -07:00

smart1,2.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

swim3.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

swim_iop.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

sx8.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

ub.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

umem.c

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

viodasd.c

[PATCH] devfs: Last little devfs cleanups throughout the kernel tree.

2006-06-26 12:25:09 -07:00

xd.c

[PATCH] Use linux/io.h instead of asm/io.h

2006-10-11 11:14:23 -07:00

xd.h

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05 15:10:12 +01:00

z2ram.c

[PATCH] z2_init() in non-modular case

2006-10-11 11:17:07 -07:00