linux-toradex.git/drivers/block/mtip32xx, branch v4.4.89

mtip32xx: Cleanup queued requests after surprise removal

2016-04-12T16:08:52+00:00

commit 008e56d200225321371748d95908e6222436f06d upstream.

Fail all pending requests after surprise removal of a drive.

Signed-off-by: Vignesh Gunasekaran 
Signed-off-by: Selvan Mani 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Implement timeout handler

2016-04-12T16:08:52+00:00

commit abb0ccd185c9e31847709b86192e6c815d1f57ad upstream.

Added timeout handler. Replaced blk_mq_end_request() with
blk_mq_complete_request() to avoid double completion of a request.

Signed-off-by: Selvan Mani 
Signed-off-by: Rajesh Kumar Sambandam 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Handle FTL rebuild failure state during device initialization

2016-04-12T16:08:51+00:00

commit aae4a033868c496adae86fc6f9c3e0c405bbf360 upstream.

Allow device initialization to finish gracefully when it is in
FTL rebuild failure state. Also, recover device out of this state
after successfully secure erasing it.

Signed-off-by: Selvan Mani 
Signed-off-by: Vignesh Gunasekaran 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Handle safe removal during IO

2016-04-12T16:08:51+00:00

commit 51c6570eb922146470c2fe660c34585414679bd6 upstream.

Flush inflight IOs using fsync_bdev() when the device is safely
removed. Also, block further IOs in device open function.

Signed-off-by: Selvan Mani 
Signed-off-by: Rajesh Kumar Sambandam 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Fix for rmmod crash when drive is in FTL rebuild

2016-04-12T16:08:51+00:00

commit 59cf70e236c96594d9f1e065755d8fce9df5356b upstream.

When FTL rebuild is in progress, alloc_disk() initializes the disk
but device node will be created by add_disk() only after successful
completion of FTL rebuild. So, skip deletion of device node in
removal path when FTL rebuild is in progress.

Signed-off-by: Selvan Mani 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Print exact time when an internal command is interrupted

2016-04-12T16:08:51+00:00

commit 5b7e0a8ac85e2dfd83830dc9e0b3554d153a37e3 upstream.

Print exact time when an internal command is interrupted.

Signed-off-by: Selvan Mani 
Signed-off-by: Rajesh Kumar Sambandam 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Remove unwanted code from taskfile error handler

2016-04-12T16:08:51+00:00

commit e35b94738a2f7caa12017f69ef385cb6b8028965 upstream.

Remove setting and clearing MTIP_PF_EH_ACTIVE_BIT flag in
mtip_handle_tfe() as they are redundant. Also avoid waking
up service thread from mtip_handle_tfe() because it is
already woken up in case of taskfile error.

Signed-off-by: Selvan Mani 
Signed-off-by: Rajesh Kumar Sambandam 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Fix broken service thread handling

2016-04-12T16:08:51+00:00

commit cfc05bd31384c4898bf2437a4de5557f3cf9803a upstream.

Service thread does not detect the need for taskfile error hanlding. Fixed the
flag condition to process taskfile error.

Signed-off-by: Selvan Mani 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Avoid issuing standby immediate cmd during FTL rebuild

2016-04-12T16:08:51+00:00

commit d8a18d2d8f5de55666c6011ed175939d22c8e3d8 upstream.

Prevent standby immediate command from being issued in remove,
suspend and shutdown paths, while drive is in FTL rebuild process.

Signed-off-by: Selvan Mani 
Signed-off-by: Vignesh Gunasekaran 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: use formatting capability of kthread_create_on_node

2015-11-20T15:46:50+00:00

kthread_create_on_node takes format+args, so there's no need to do the
pretty-printing in advance. Moreover, "mtip_svc_thd_99" (including its
'\0') only just fits in 16 bytes, so if index could ever go above 99
we'd have a stack buffer overflow.

Signed-off-by: Rasmus Villemoes 
Reviewed-by: Jeff Moyer 
Signed-off-by: Jens Axboe