Vladislav Bolkhovitin f742ae018e scst_vdisk: Add zero-copy file I/O readsupport ...

Speeds up reading from a RAM disk via ib_srpt by about 30%.
Tested with iSCSI-SCST, ib_srpt and scst_local.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>

In it:

- Fixed NULLIO, which the original patch breaks

- Changed on all fast paths sBUG_ON() on EXTRACHECKS_BUG_ON()

- Fixed errors path in non_fileio_exec() and fileio_alloc_data_buf().

- Renamed zero_copy_read to just zero_copy.

- Docs and change log updated

- Some cleanups




git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4213 d57e44dd-8a1f-0410-8b47-8ef2f437770f

2012-04-18 01:19:28 +00:00

..

images

Web updates.

2009-12-24 13:54:49 +00:00

iscsi-scst

Version updated to 2.2.0

2012-01-26 05:48:19 +00:00

aca.diff

Web updates

2011-09-08 02:17:01 +00:00

bart_res.txt

Web updates

2009-04-14 12:34:35 +00:00

comparison.html

Web updates

2011-09-08 02:17:01 +00:00

contributing.html

scst_vdisk: Add zero-copy file I/O readsupport

2012-04-18 01:19:28 +00:00

downloads.html

"My own Storage Linux OS" added

2012-04-13 20:47:14 +00:00

Gentoo-HOWTO.pdf

Gentoo HOWTO written by Jurie Botha <jurieb@taprojects.co.za>

2012-03-02 02:58:57 +00:00

handler_fileio_tgt.html

Version updated to 2.2.0

2012-01-26 05:48:19 +00:00

index.html

Gentoo HOWTO written by Jurie Botha <jurieb@taprojects.co.za>

2012-03-02 02:58:57 +00:00

max_outstanding_r2t.txt

Web update

2010-01-11 19:44:15 +00:00

mc_s.html

Web and docs updates

2011-06-10 01:43:05 +00:00

scst_admin.html

Version updated to 2.2.0

2012-01-26 05:48:19 +00:00

scstvslio.html

Docs updates. Update for qla2x00t-howto-debian.html was sent by Barry Schut <b.schut@iu.nl>

2011-06-24 00:46:02 +00:00

scstvsstgt.html

Web and docs updates

2011-06-10 01:43:05 +00:00

sgv_big_order_alloc-sfw5-rc3.diff

Web updates

2010-12-21 14:48:02 +00:00

sgv_big_order_alloc.diff

Added proposed patch to solve SG IO count limitation issue in pass-through mode. It allows SGV cache do allocation

2008-11-07 18:47:17 +00:00

solutions.html

Copyrights updated

2011-01-14 21:43:28 +00:00

target_emulex.html

Web updates

2011-03-09 20:11:59 +00:00

target_fcoe.html

Web updates

2011-03-09 20:11:59 +00:00

target_ibmvscsi.html

Web updates

2011-03-09 20:11:59 +00:00

target_iscsi.html

Minor cleanups, fixes and updates

2010-04-27 16:29:58 +00:00

target_local.html

Web updates

2011-03-09 20:11:59 +00:00

target_lsi.html

Web updates

2011-03-09 20:11:59 +00:00

target_mvsas.html

Web updates

2011-03-09 20:11:59 +00:00

target_old.html

Web updates

2011-03-09 20:11:59 +00:00

target_qla2x00t.html

Version updated to 2.2.0

2012-01-26 05:48:19 +00:00

target_srp.html

Version updated to 2.2.0

2012-01-26 05:48:19 +00:00

targets.html

Web updates

2011-03-09 20:11:59 +00:00

tomasz_res.txt

Web updates

2009-04-09 09:50:47 +00:00

users.html

Web updates

2012-01-20 20:10:00 +00:00

vl_res.txt

Web updates and fixes

2010-02-20 20:35:28 +00:00