Re: [PATCH v7 9/9] block, scsi: Make SCSI quiesce and resume work reliably

Bart Van Assche - 09.10.17, 16:14: > The contexts from which a SCSI device can be quiesced or resumed are: > * Writing into /sys/class/scsi_device/*/device/state. > * SCSI parallel (SPI) domain validation. > * The SCSI device power management methods. See also scsi_bus_pm_ops. > > It is essential

[PATCH 03/10] be2iscsi: Free msi_name and disable HW intr

In beiscsi_dev_probe, allocated msi_name does not get freed and enabled HW interrupts are not disabled in iscsi_host_add error case. Add beiscsi_free_irqs fn to handle the cleanup in probe and disable port. Signed-off-by: Jitendra Bhivare ---

[PATCH 04/10] be2iscsi: Fix _modify_eq_delay buffer overflow

beiscsi_modify_eq_delay is using embedded command to send request of 788 bytes in 236 bytes buffer. Non-embedded command needs to be used in such cases. Use mgmt_alloc_cmd_data fn modified to allow passing of subsystem. Use mgmt_exec_nonemb_cmd fn modified to allow setting of callback.

[PATCH 05/10] be2iscsi: Fix _get_initname buffer overflow

be_cmd_get_initname pulls GET_HBA_NAME response of 276 bytes in embedded WRB buffer of 236 bytes. Use non-embedded functions to issue the IOCTL. Signed-off-by: Jitendra Bhivare --- drivers/scsi/be2iscsi/be_cmds.h | 2 -- drivers/scsi/be2iscsi/be_iscsi.c | 44

[PATCH 00/10] be2iscsi: driver update 11.4.0.1

This patch is generated against for-next branch. Jitendra Bhivare (10): be2iscsi: Fix boot flags in sysfs be2iscsi: Fix return value in mgmt_open_connection be2iscsi: Free msi_name and disable HW intr be2iscsi: Fix _modify_eq_delay buffer overflow be2iscsi: Fix _get_initname buffer

Re: [PATCH v7 9/9] block, scsi: Make SCSI quiesce and resume work reliably

On Mon, Oct 09, 2017 at 04:14:00PM -0700, Bart Van Assche wrote: > The contexts from which a SCSI device can be quiesced or resumed are: > * Writing into /sys/class/scsi_device/*/device/state. > * SCSI parallel (SPI) domain validation. > * The SCSI device power management methods. See also

[PATCH 08/10] be2iscsi: Fix misc static analysis errors

The patch fixes errors reported by tools like smatch: - removes unused structure fields - removes dead code - fixes code identation Signed-off-by: Jitendra Bhivare --- drivers/scsi/be2iscsi/be.h | 17 drivers/scsi/be2iscsi/be_cmds.c | 1 -

[PATCH 10/10] scsi: be2iscsi: Update driver version

Version 11.4.0.1 Signed-off-by: Jitendra Bhivare --- drivers/scsi/be2iscsi/be_main.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h index 3d21849..9bc7ef9 100644 ---

[PATCH 07/10] be2iscsi: Add cmd to set host data

Provide driver version in host data to FW. Signed-off-by: Jitendra Bhivare --- drivers/scsi/be2iscsi/be_cmds.c | 46 + drivers/scsi/be2iscsi/be_cmds.h | 26 +++ drivers/scsi/be2iscsi/be_main.c | 2 ++ 3

[PATCH 09/10] be2iscsi: Remove A-circumflex character in copyright marking

Signed-off-by: Jitendra Bhivare --- drivers/scsi/be2iscsi/be.h | 2 +- drivers/scsi/be2iscsi/be_cmds.c | 2 +- drivers/scsi/be2iscsi/be_cmds.h | 2 +- drivers/scsi/be2iscsi/be_iscsi.c | 2 +- drivers/scsi/be2iscsi/be_iscsi.h | 2 +-

[PATCH 06/10] be2iscsi: Modify IOCTL to fetch user configured IQN

Add version 1 of GET_HBA_NAME to fetch port specific IQN first. If it fails use version 0 to get the IQN. To use this old IQN names of interfaces needs to be cleared from the iscsiadm database. Signed-off-by: Jitendra Bhivare --- drivers/scsi/be2iscsi/be_iscsi.c

[PATCH 02/10] be2iscsi: Fix return value in mgmt_open_connection

mgmt_open_connection is expected to return tag not errno. In error case, just return invalid tag 0. Signed-off-by: Jitendra Bhivare --- drivers/scsi/be2iscsi/be_mgmt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[PATCH 01/10] be2iscsi: Fix boot flags in sysfs

The boot flags exported through sysfs was wrongly reverted to 2. Use boot flag 3 required per spec. Bit 0 Block valid flag Bit 1 Firmware booting selected Signed-off-by: Jitendra Bhivare --- drivers/scsi/be2iscsi/be_main.c | 11 +-- 1 file changed, 9

Re: [PATCH V5 00/14] blk-mq-sched: improve sequential I/O performance(part 1)

> Il giorno 10 ott 2017, alle ore 14:34, Johannes Thumshirn > ha scritto: > > Hi John, > > On Tue, Oct 10, 2017 at 01:24:52PM +0100, John Garry wrote: >> It's using cfq (for non-mq) and mq-deadline (obviously for mq). > > Please be aware that cfq and mq-deadline are _not_

[PATCH 08/10] mpt3sas: Fix possibility of using invalid Enclosure Handles for SAS device after host reset

Enclosure handles are not updated after host reset. As a result, driver device structure is holding previously assigned enclosure handle which is different from the enclosure handle populated in the corresponding device page. Modified the driver to update devices enclosure handles after host

[PATCH 10/10] mpt3sas: Bump mpt3sas driver version to v16.100.00.00

Bump mpt3sas driver version to v16.100.00.00 Signed-off-by: Sreekanth Reddy --- drivers/scsi/mpt3sas/mpt3sas_base.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h

Re: [PATCH V5 00/14] blk-mq-sched: improve sequential I/O performance(part 1)

On Tue, Oct 10, 2017 at 01:24:52PM +0100, John Garry wrote: > On 10/10/2017 02:46, Ming Lei wrote: > > > > > > I tested this series for the SAS controller on HiSilicon hip07 > > > > > > platform as I > > > > > > am interested in enabling MQ for this driver. Driver is > > > > > >

[PATCH 06/10] mpt3sas: Updated MPI headers to v2.00.48

Updated MPI headers to v2.00.48 Signed-off-by: Sreekanth Reddy --- drivers/scsi/mpt3sas/mpi/mpi2.h | 43 ++- drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h | 564 +-- drivers/scsi/mpt3sas/mpi/mpi2_init.h | 11 +-

[PATCH 05/10] mpt3sas: Fix IO error occurs on pulling out a drive from RAID1 volume created on two SATA drive

Whenever IO for raid volume fails with IOCStatus "MPI2_IOCSTATUS_SCSI_IOC_TERMINATED"and SCSIStatus equal to "(MPI2_SCSI_STATE_TERMINATED | MPI2_SCSI_STATE_NO_SCSI_STATUS)" then return the IO to SML with "DID_RESET" (i.e. retry the IO infinite times) host bytes. Earlier driver is returning

[PATCH 07/10] mpt3sas: Display chassis slot information of the drive

Display chassis slot information along with other drive location parameters such as slot number and connector name in the logs; if chassis slot validity bit is set in 'SAS Enclosure Page 0' while adding the drive. Signed-off-by: Sreekanth Reddy ---

[PATCH 09/10] mpt3sas: Adding support for SAS3616 HBA device

Adding PNP ID of Mercator i.e. SAS3616 HBA device. Its device ID is 0xD1 and vendor ID is 0x1000. Signed-off-by: Sreekanth Reddy --- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 5 + 1 file changed, 5 insertions(+) diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c

[PATCH] scsi: libcxgbi: in case of vlan pass 0 as ifindex to find route

In case of vlan pass 0 as ifindex to find route instead of passing real_dev ifindex, if we pass real_dev ifindex then ip_route_output_ports() and ip6_route_output() will check for route through real_dev not through vlan interface. Signed-off-by: Varun Prakash ---

Re: [PATCH V5 00/14] blk-mq-sched: improve sequential I/O performance(part 1)

On 10/10/2017 02:46, Ming Lei wrote: > > I tested this series for the SAS controller on HiSilicon hip07 platform as I > > am interested in enabling MQ for this driver. Driver is > > ./drivers/scsi/hisi_sas/. > > > > So I found that that performance is improved when enabling default SCSI_MQ > >

[PATCH 03/10] mpt3sas: Reduce memory footprints in kdump kernel

To reduce the memory footprints of the driver in kdump kernel, we have made below driver setting when system boots in to kdump kernel, 1. Used single MSI-x vector. 2. Disable RDPQ mode. 3. Set sg_table_size to 32 by default. 4) Set SCSI IO Queue depth to 200. Signed-off-by: Sreekanth Reddy

[PATCH 02/10] mpt3sas: Fixed memory leaks in driver

Fixed below memory leak in driver, * While removing Expander devices - we are removing expander device entry from the list before freeing it's child devices, so while freeing child device we are finding its parent device node as NULL and so we are not freeing the child device's allocated data

[PATCH 01/10] mpt3sas: Processing of Cable Exception events

Earlier Active Cable Exception event with reason code "Cable Degraded (0x02))" was added only for Active Cable, Now this event is extended to Passive cable too. So re-arranged display message accordingly. Also added Cable Exception Event even for SAS3008 & SAS3108 HBAs (i.e. MPI 2.5 spec

[PATCH 00/10] [SCSI] mpt3sas: Phase15 driver enhancements and fixes

Phase15 driver enhancements and fixes. Sreekanth Reddy (10): mpt3sas: Processing of Cable Exception events mpt3sas: Fixed memory leaks in driver mpt3sas: Reduce memory footprints in kdump kernel mpt3sas: Fix removal and addition of vSES device during host reset mpt3sas: Fix IO error

[PATCH 04/10] mpt3sas: Fix removal and addition of vSES device during host reset

For Dev Handles who value is less than hba's phys count number driver will return HBA sas address value as a sas address. So for Virtual SES device also driver was returning HBA sas address instead of Virtual SES sas address. So now updated the driver to return Virtual SES's sas address for

Re: [PATCH V5 00/14] blk-mq-sched: improve sequential I/O performance(part 1)

Hi John, On Tue, Oct 10, 2017 at 01:24:52PM +0100, John Garry wrote: > It's using cfq (for non-mq) and mq-deadline (obviously for mq). Please be aware that cfq and mq-deadline are _not_ comparable, for a realistic comparasion please use deadline and mq-deadline or cfq and bfq. > root@(none)$

Re: [PATCH V6 3/5] sbitmap: introduce __sbitmap_for_each_set()

On Mon, Oct 09, 2017 at 07:24:22PM +0800, Ming Lei wrote: > We need to iterate ctx starting from any ctx in round robin > way, so introduce this helper. > > Cc: Omar Sandoval Reviewed-by: Omar Sandoval > Signed-off-by: Ming Lei > --- >

Re: [PATCH V6 5/5] blk-mq-sched: don't dequeue request until all in ->dispatch are flushed

On Mon, Oct 09, 2017 at 07:24:24PM +0800, Ming Lei wrote: > During dispatching, we moved all requests from hctx->dispatch to > one temporary list, then dispatch them one by one from this list. > Unfortunately during this period, run queue from other contexts > may think the queue is idle, then

Re: [PATCH v7 9/9] block, scsi: Make SCSI quiesce and resume work reliably

On Tue, 2017-10-10 at 18:56 +0800, Ming Lei wrote: > On Mon, Oct 09, 2017 at 04:14:00PM -0700, Bart Van Assche wrote: > > [ ... ] > > int > > scsi_device_quiesce(struct scsi_device *sdev) > > { > > + struct request_queue *q = sdev->request_queue; > > int err; > > > > + /* If the SCSI

Re: [PATCH V6 1/5] blk-mq-sched: fix scheduler bad performance

On Mon, Oct 09, 2017 at 07:24:20PM +0800, Ming Lei wrote: > When hw queue is busy, we shouldn't take requests from > scheduler queue any more, otherwise it is difficult to do > IO merge. > > This patch fixes the awful IO performance on some > SCSI devices(lpfc, qla2xxx, ...) when

Re: [PATCH V6 4/5] blk-mq-sched: improve dispatching from sw queue

On Mon, Oct 09, 2017 at 07:24:23PM +0800, Ming Lei wrote: > SCSI devices use host-wide tagset, and the shared driver tag space is > often quite big. Meantime there is also queue depth for each lun( > .cmd_per_lun), which is often small, for example, on both lpfc and > qla2xxx, .cmd_per_lun is just

Re: system hung up when offlining CPUs

Hi Thomas, Sorry for the late reply. I'll apply the patches and retest in this week. Please wait a while. Thanks, Yasuaki Ishimatsu On 10/04/2017 05:04 PM, Thomas Gleixner wrote: > On Tue, 3 Oct 2017, Thomas Gleixner wrote: >> Can you please apply the debug patch below. > > I found an issue

Re: [PATCH v7 9/9] block, scsi: Make SCSI quiesce and resume work reliably

On Tue, 2017-10-10 at 09:57 +0200, Martin Steigerwald wrote: > Bart Van Assche - 09.10.17, 16:14: > > The contexts from which a SCSI device can be quiesced or resumed are: > > [ ... ] > > Does this as reliably fix the issue as the patches from Ming? I mean in *real > world* scenarios? Or is it

Re: [PATCH] scsi: use set_host_byte instead of open-coding it

On Tue, 2017-10-10 at 17:29 +0200, Johannes Thumshirn wrote: > Call set_host_byte() instead of open-coding it. > > Converted using this simple Coccinelle spatch > > > @@ > local idexpression struct scsi_cmnd *c; > expression E1; > @@ > > - c->result = E1 << 16; > + set_host_byte(c, E1); >

Re: [PATCH] scsi: libiscsi: fix shifting of DID_REQUEUE host byte

On 10/09/2017 01:33 PM, Johannes Thumshirn wrote: > The SCSI host byte should be shifted left by 16 in order to have > scsi_decide_disposition() do the right thing (.i.e. requeue the command). > > Signed-off-by: Johannes Thumshirn > Fixes: 661134ad3765 ("[SCSI] libiscsi,

[PATCH v3] scsi: fc: check for rport presence in fc_block_scsi_eh

Coverity-scan recently found a possible NULL pointer dereference in fc_block_scsi_eh() as starget_to_rport() either returns the rport for the startget or NULL. While it is rather unlikely to have fc_block_scsi_eh() called without an rport associated it's a good idea to catch potential misuses of

Re: [PATCH V5 00/14] blk-mq-sched: improve sequential I/O performance(part 1)

On 10/10/2017 14:45, Ming Lei wrote: Hi John, All change in V6.2 is blk-mq/scsi-mq only, which shouldn't affect non SCSI_MQ, so I suggest you to compare the perf between deadline and mq-deadline, like Johannes mentioned. > > V6.2 series with default SCSI_MQ > read, rw, write IOPS >

[PATCH] scsi: use set_host_byte instead of open-coding it

Call set_host_byte() instead of open-coding it. Converted using this simple Coccinelle spatch @@ local idexpression struct scsi_cmnd *c; expression E1; @@ - c->result = E1 << 16; + set_host_byte(c, E1); Signed-off-by: Johannes Thumshirn Cc: Steffen Maier

[PATCH] qla2xxx: Fix uninitialize work element

From: Quinn Tran Fixes following stack trace kernel: Call Trace: kernel: dump_stack+0x63/0x84 kernel: __warn+0xd1/0xf0 kernel: warn_slowpath_null+0x1d/0x20 kernel: __queue_work+0x37a/0x420 kernel: queue_work_on+0x27/0x40 kernel: queue_work+0x14/0x20 [qla2xxx] kernel:

Re: [PATCH] scsi: logging_level: update bits description

Hi Randy, On Oct 10, 2017, at 3:05 PM, Randy Dunlap wrote: > > From: Randy Dunlap > > Update the description of 'scsi_logging_level' from 8 4-bit nibbles > to the (pre-git) reality of 10 3-bit 'nibbles'. > > Signed-off-by: Randy Dunlap

[PATCH] scsi: logging_level: update bits description

From: Randy Dunlap Update the description of 'scsi_logging_level' from 8 4-bit nibbles to the (pre-git) reality of 10 3-bit 'nibbles'. Signed-off-by: Randy Dunlap --- drivers/scsi/scsi_logging.h |8 1 file changed, 4 insertions(+), 4

[PATCH 5/5] scsi: sd_zbc: Fix sd_zbc_read_zoned_characteristics()

The three values starting at byte 8 of the Zoned Block Device Characteristics VPD page B6h are 32 bits values, not 64bits. So use get_unaligned_be32() to retrieve the values and not get_unaligned_be64() Fixes: 89d947561077 ("sd: Implement support for ZBC devices") Cc:

[PATCH 2/5] scsi: sd_zbc: Fix comments and indentation

Fix comments style (use kernel-doc style) and content to clarify some functions. Also fix some functions signature indentation and remove a useless blank line in sd_zbc_read_zones(). No functional change is introduced by this patch. Signed-off-by: Damien Le Moal

[PATCH 3/5] scsi: sd_zbc: Rearrange code

Rearrange sd_zbc_setup() to include use_16_for_rw and use_10_for_rw assignments and move the calculation of sdkp->zone_shift together with the assignment of the verified zone_blocks value in sd_zbc_check_zone_size(). No functional change is introduced by this patch. Signed-off-by: Damien Le Moal

[PATCH 4/5] scsi: sd_zbc: Use well defined macros

instead of open coding, use the min() macro to calculate a report zones reply buffer length in sd_zbc_check_zone_size() and the round_up() macro for calculating the number of zones in sd_zbc_setup(). No functional change is introduced by this patch. Signed-off-by: Damien Le Moal

[PATCH 1/5] scsi: sd_zbc: Move ZBC declarations to scsi_proto.h

Move standard macro definitions for the zone types and zone conditions to scsi_proto.h together with the definitions related to the REPORT ZONES command. While at it, define all values in the enums to be clear. Also remove unnecessary includes in sd_zbc.c. No functional change is introduced by

[PATCH 0/5] ZBC support clenaup and fixes

Martin, First part of the "scsi-mq support for ZBC disks" series that is only scsi specific. These patches are just cleanups with only one bug fix (last pacth) and do not functionally change anything. The remaining rework of the zone locking including scsi-mq support is still ongoing and will be

[PATCH v8 07/10] ide, scsi: Tell the block layer at request allocation time about preempt requests

Convert blk_get_request(q, op, __GFP_RECLAIM) into blk_get_request_flags(q, op, BLK_MQ_PREEMPT). This patch does not change any functionality. Signed-off-by: Bart Van Assche Cc: Martin K. Petersen Acked-by: David S. Miller

[PATCH v8 06/10] block: Introduce BLK_MQ_REQ_PREEMPT

Set RQF_PREEMPT if BLK_MQ_REQ_PREEMPT is passed to blk_get_request_flags(). Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Ming Lei Cc: Hannes Reinecke Cc: Johannes Thumshirn ---

[PATCH v8 05/10] block: Introduce blk_get_request_flags()

A side effect of this patch is that the GFP mask that is passed to several allocation functions in the legacy block layer is changed from GFP_KERNEL into __GFP_DIRECT_RECLAIM. Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Ming Lei

[PATCH v8 02/10] md: Introduce md_stop_all_writes()

Introduce md_stop_all_writes() because the next patch will add a second caller for this function. This patch does not change any functionality. Signed-off-by: Bart Van Assche Reviewed-by: Johannes Thumshirn Cc: Shaohua Li Cc:

[PATCH v8 10/10] block, nvme: Introduce blk_mq_req_flags_t

Several block layer and NVMe core functions accept a combination of BLK_MQ_REQ_* flags through the 'flags' argument but there is no verification at compile time whether the right type of block layer flags is passed. Make it possible for sparse to verify this. This patch does not change any

[PATCH v8 00/10] block, scsi, md: Improve suspend and resume

Hello Jens, It is known that during the resume following a hibernate, especially when using an md RAID1 array created on top of SCSI devices, sometimes the system hangs instead of coming up properly. This patch series fixes that problem. These patches have been tested on top of the block layer

[PATCH v8 04/10] block: Make q_usage_counter also track legacy requests

From: Ming Lei This patch makes it possible to pause request allocation for the legacy block layer by calling blk_mq_freeze_queue() and blk_mq_unfreeze_queue(). Signed-off-by: Ming Lei [ bvanassche: Combined two patches into one, edited a comment and

Re: [PATCH] scsi: be2iscsi: Use kasprintf

Hi Himanshu, On Oct 6, 2017, at 2:57 PM, Himanshu Jha wrote: > > Use kasprintf instead of combination of kmalloc and sprintf. > > Signed-off-by: Himanshu Jha > --- > drivers/scsi/be2iscsi/be_main.c | 12 +--- > 1 file changed, 5

[PATCH v8 03/10] md: Neither resync nor reshape while the system is frozen

Some people use the md driver on laptops and use the suspend and resume functionality. Since it is essential that submitting of new I/O requests stops before a hibernation image is created, interrupt the md resync and reshape actions if the system is being frozen. Note: the resync and reshape will

[PATCH v8 08/10] block: Add the QUEUE_FLAG_PREEMPT_ONLY request queue flag

This flag will be used in the next patch to let the block layer core know whether or not a SCSI request queue has been quiesced. A quiesced SCSI queue namely only processes RQF_PREEMPT requests. Signed-off-by: Bart Van Assche Cc: Ming Lei Cc:

[PATCH v8 01/10] md: Rename md_notifier into md_reboot_notifier

This avoids confusion with the pm notifier that will be added through a later patch. Signed-off-by: Bart Van Assche Reviewed-by: Johannes Thumshirn Cc: Shaohua Li Cc: linux-r...@vger.kernel.org Cc: Ming Lei Cc:

[PATCH v8 09/10] block, scsi: Make SCSI quiesce and resume work reliably

The contexts from which a SCSI device can be quiesced or resumed are: * Writing into /sys/class/scsi_device/*/device/state. * SCSI parallel (SPI) domain validation. * The SCSI device power management methods. See also scsi_bus_pm_ops. It is essential during suspend and resume that neither the

[PATCH] scsi: ibmvscsi: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: "Martin K. Petersen" Cc: Tyrel Datwyler Cc:

RE: [PATCH 2/2] hpsa: destroy sas transport properties before scsi_host

> -Original Message- > From: Johannes Thumshirn [mailto:jthumsh...@suse.de] > Sent: Monday, November 21, 2016 8:15 AM > To: Martin Wilck > Cc: Don Brace ; dl-esc-Team ESD Storage Dev > Support ; >

Re: [PATCH v7 1/9] md: Rename md_notifier into md_reboot_notifier

Looks good, Reviewed-by: Johannes Thumshirn -- Johannes Thumshirn Storage jthumsh...@suse.de+49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham

Re: [PATCH v7 2/9] md: Introduce md_stop_all_writes()

Looks good, Reviewed-by: Johannes Thumshirn -- Johannes Thumshirn Storage jthumsh...@suse.de+49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham

Re: [PATCH v7 4/9] block: Make q_usage_counter also track legacy requests

Looks good, Reviewed-by: Johannes Thumshirn -- Johannes Thumshirn Storage jthumsh...@suse.de+49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham

Re: [PATCH v8 03/10] md: Neither resync nor reshape while the system is frozen

On Tue, Oct 10, 2017 at 02:03:39PM -0700, Bart Van Assche wrote: > Some people use the md driver on laptops and use the suspend and > resume functionality. Since it is essential that submitting of > new I/O requests stops before a hibernation image is created, > interrupt the md resync and reshape

[PATCH] scsi: ses: don't ask for diagnostic pages repeatedly during probe

We are testing if there is a match with the ses device in a loop by calling ses_match_to_enclosure(), which will issue scsi receive diagnostics commands to the ses device for every device on the same host. On one of our boxes with 840 disks, it takes a long time to load the driver:

Re: [PATCH v8 03/10] md: Neither resync nor reshape while the system is frozen

On Tue, Oct 10, 2017 at 11:33:06PM +, Bart Van Assche wrote: > On Tue, 2017-10-10 at 15:30 -0700, Shaohua Li wrote: > > On Tue, Oct 10, 2017 at 02:03:39PM -0700, Bart Van Assche wrote: > > > Some people use the md driver on laptops and use the suspend and > > > resume functionality. Since it

[PATCH] scsi: fix doc. typo for I2O

From: Randy Dunlap Fix typo: I20 should be I2O. Signed-off-by: Randy Dunlap --- Documentation/driver-api/scsi.rst |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- lnx-414-rc3.orig/Documentation/driver-api/scsi.rst +++

Re: [PATCH v8 03/10] md: Neither resync nor reshape while the system is frozen

On Tue, 2017-10-10 at 15:30 -0700, Shaohua Li wrote: > On Tue, Oct 10, 2017 at 02:03:39PM -0700, Bart Van Assche wrote: > > Some people use the md driver on laptops and use the suspend and > > resume functionality. Since it is essential that submitting of > > new I/O requests stops before a