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aad560b7f6
linux/include/scsi
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Boaz Harrosh aad560b7f6 ore: Fix wrong math in allocation of per device BIO 
At IO preparation we calculate the max pages at each device and
allocate a BIO per device of that size. The calculation was wrong
on some unaligned corner cases offset/length combination and would
make prepare return with -ENOMEM. This would be bad for pnfs-objects
that would in that case IO through MDS. And fatal for exofs were it
would fail writes with EIO.

Fix it by doing the proper math, that will work in all cases. (I
ran a test with all possible offset/length combinations this time
round).

Also when reading we do not need to allocate for the parity units
since we jump over them.

Also lower the max_io_length to take into account the parity pages
so not to allocate BIOs bigger than PAGE_SIZE

CC: Stable Kernel <stable@vger.kernel.org>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2014-01-23 10:55:03 +02:00
..
fc UAPI: (Scripted) Disintegrate include/scsi/fc 2013-01-07 14:58:36 -08:00
fc_encode.h [SCSI] libfc: Add support for FDMI 2012-02-19 08:08:58 -06:00
fc_frame.h [SCSI] fcoe: remove unused ptype field in fcoe_rcv_info 2011-07-28 12:08:55 +04:00
fcoe_sysfs.h libfcoe, fcoe, bnx2fc: Add new fcoe control interface 2012-12-14 10:38:54 -08:00
iscsi_if.h [SCSI] scsi_transport_iscsi: Exporting new attrs for iscsi session and connection in sysfs 2013-08-23 13:08:30 -04:00
iscsi_proto.h [SCSI] be2iscsi: Get Initiator Name for the iSCSI_Host 2012-04-25 09:29:35 +01:00
libfc.h libfc, fcoe, bnx2fc: Split fc_disc_init into fc_disc_{init, config} 2013-03-25 16:03:03 -07:00
libfcoe.h libfcoe, fcoe: consolidate the fcoe_ctlr_get_lesb/fcoe_get_lesb 2012-12-14 10:38:55 -08:00
libiscsi_tcp.h [SCSI] libiscsi_tcp: fix max_r2t manipulation 2012-02-19 08:09:00 -06:00
libiscsi.h [SCSI] libiscsi: Exporting new attrs for iscsi session and connection in sysfs 2013-08-23 13:10:16 -04:00
libsas.h [SCSI] libsas: implement > 16 byte CDB support 2013-06-04 11:15:59 -07:00
libsrp.h
osd_attributes.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
osd_initiator.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
osd_ore.h ore: Fix wrong math in allocation of per device BIO 2014-01-23 10:55:03 +02:00
osd_protocol.h [SCSI] libosd: remover duplicate __bitwise annotation 2013-05-02 12:15:10 -07:00
osd_sec.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
osd_sense.h
osd_types.h [SCSI] libosd: Support for scatter gather write/read commands 2010-10-26 10:42:34 -05:00
sas_ata.h [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type 2013-05-10 07:47:52 -07:00
sas.h [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type 2013-05-10 07:47:52 -07:00
scsi_bsg_iscsi.h [SCSI] iscsi class: add bsg support to iscsi class 2011-08-27 08:36:21 -06:00
scsi_cmnd.h [SCSI] Shorten the path length of scsi_cmd_to_driver() 2012-10-09 12:04:42 +01:00
scsi_dbg.h
scsi_device.h [SCSI] Generate uevents on certain unit attention codes 2013-08-26 18:52:27 +04:00
scsi_devinfo.h [SCSI] Workaround for disks that report bad optimal transfer length 2013-06-24 13:00:10 -07:00
scsi_dh.h [SCSI] scsi_dh: add scsi_dh_attached_handler_name 2012-07-20 08:58:42 +01:00
scsi_driver.h [SCSI] Handle disk devices which can not process medium access commands 2012-02-19 10:14:52 -06:00
scsi_eh.h
scsi_host.h scsi: bury ->proc_info() 2013-04-09 14:13:29 -04:00
scsi_ioctl.h
scsi_tcq.h [SCSI] target: Convert TASK_ATTR to scsi_tcq.h definitions 2011-05-24 13:03:56 -04:00
scsi_tgt_if.h
scsi_tgt.h
scsi_transport_fc.h [SCSI] fc: add some more FC specific stats to fc_host 2012-07-20 08:31:47 +01:00
scsi_transport_iscsi.h [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used 2013-05-10 07:47:53 -07:00
scsi_transport_sas.h [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type 2013-05-10 07:47:52 -07:00
scsi_transport_spi.h
scsi_transport_srp.h IB/srp: Allow SRP disconnect through sysfs 2012-11-30 17:40:33 -08:00
scsi_transport.h BUG: headers with BUG/BUG_ON etc. need linux/bug.h 2012-03-04 17:54:34 -05:00
scsi.h Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-09-12 16:11:45 -07:00
scsicam.h
sg.h
srp.h IB/srp: Implement SRP_CRED_REQ and SRP_AER_REQ 2010-10-22 22:19:10 -07:00