* [PATCHv2 0/3] scsi: More detailed I/O errors
@ 2013-06-06 8:26 Hannes Reinecke
2013-06-06 8:26 ` [PATCH 1/3] scsi: Document enhanced error codes Hannes Reinecke
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Hannes Reinecke @ 2013-06-06 8:26 UTC (permalink / raw)
To: James Bottomley
Cc: linux-scsi, Dave Chinner, Theodore T'so, linux-fsdevel,
Ren Mingxin, Hannes Reinecke
As discussed at LSF the SCSI stack already knows about several
error conditions, it's just not well documented.
Also there are some more conditions upper layers might be
interested in.
This patchset improves the documentation of the existing
I/O error codes and adds two more error codes, ENOSPC
for thin provisioning failure and ENODATA for medium error.
Changes since the initial version, suggested by Ren Mingxin:
- Add error description to blk_update_request()
- Document missing values
Hannes Reinecke (3):
scsi: Document enhanced error codes
scsi: Return ENOSPC on thin provisioning failure
scsi: Return ENODATA on medium error
block/blk-core.c | 6 ++++++
drivers/scsi/scsi_error.c | 27 +++++++++++++++++++++++----
drivers/scsi/scsi_lib.c | 22 ++++++++++++++++++++++
include/scsi/scsi.h | 4 ++++
4 files changed, 55 insertions(+), 4 deletions(-)
--
1.7.12.4
^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH 1/3] scsi: Document enhanced error codes 2013-06-06 8:26 [PATCHv2 0/3] scsi: More detailed I/O errors Hannes Reinecke @ 2013-06-06 8:26 ` Hannes Reinecke 2013-06-06 8:26 ` [PATCH 2/3] scsi: Return ENOSPC on thin provisioning failure Hannes Reinecke 2013-06-06 8:26 ` [PATCH 3/3] scsi: Return ENODATA on medium error Hannes Reinecke 2 siblings, 0 replies; 7+ messages in thread From: Hannes Reinecke @ 2013-06-06 8:26 UTC (permalink / raw) To: James Bottomley Cc: linux-scsi, Dave Chinner, Theodore T'so, linux-fsdevel, Ren Mingxin, Hannes Reinecke Document the various error codes returned on I/O failure. Signed-off-by: Hannes Reinecke <hare@suse.de> --- drivers/scsi/scsi_error.c | 8 ++++++-- drivers/scsi/scsi_lib.c | 12 ++++++++++++ 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index f43de1e..5319eda 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -229,8 +229,12 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, * scsi_check_sense - Examine scsi cmd sense * @scmd: Cmd to have sense checked. * - * Return value: - * SUCCESS or FAILED or NEEDS_RETRY or TARGET_ERROR + * Possible return values: + * SUCCESS + * FAILED + * NEEDS_RETRY + * TARGET_ERROR + * ADD_TO_MLQUEUE * * Notes: * When a deferred error is detected the current command has diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 86d5220..9bfee08 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -700,6 +700,18 @@ void scsi_release_buffers(struct scsi_cmnd *cmd) } EXPORT_SYMBOL(scsi_release_buffers); +/** + * __scsi_error_from_host_byte - translate SCSI error code into errno + * @cmd: SCSI command (unused) + * @result: scsi error code + * + * Translate SCSI error code into standard UNIX errno. + * Return values: + * -ENOLINK temporary transport failure + * -EREMOTEIO permanent target failure, do not retry + * -EBADE permanent nexus failure, retry on other path + * -EIO unclassified I/O error + */ static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result) { int error = 0; -- 1.7.12.4 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 2/3] scsi: Return ENOSPC on thin provisioning failure 2013-06-06 8:26 [PATCHv2 0/3] scsi: More detailed I/O errors Hannes Reinecke 2013-06-06 8:26 ` [PATCH 1/3] scsi: Document enhanced error codes Hannes Reinecke @ 2013-06-06 8:26 ` Hannes Reinecke 2013-06-06 8:26 ` [PATCH 3/3] scsi: Return ENODATA on medium error Hannes Reinecke 2 siblings, 0 replies; 7+ messages in thread From: Hannes Reinecke @ 2013-06-06 8:26 UTC (permalink / raw) To: James Bottomley Cc: linux-scsi, Dave Chinner, Theodore T'so, linux-fsdevel, Ren Mingxin, Hannes Reinecke When the thin provisioning hard threshold is reached we should return ENOSPC to inform upper layers about this fact. Signed-off-by: Hannes Reinecke <hare@suse.de> --- block/blk-core.c | 3 +++ drivers/scsi/scsi_error.c | 12 +++++++++++- drivers/scsi/scsi_lib.c | 5 +++++ include/scsi/scsi.h | 2 ++ 4 files changed, 21 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index 33c33bc..dab068b 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2315,6 +2315,9 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes) case -EBADE: error_type = "critical nexus"; break; + case -ENOSPC: + error_type = "space allocation"; + break; case -EIO: default: error_type = "I/O"; diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 5319eda..eff9b55 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -235,6 +235,7 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, * NEEDS_RETRY * TARGET_ERROR * ADD_TO_MLQUEUE + * ALLOC_ERROR * * Notes: * When a deferred error is detected the current command has @@ -360,11 +361,15 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) return SUCCESS; /* these are not supported */ + case DATA_PROTECT: + if (sshdr.asc == 0x27 && sshdr.ascq == 0x07) { + /* Thin provisioning hard threshold reached */ + return ALLOC_ERROR; + } case COPY_ABORTED: case VOLUME_OVERFLOW: case MISCOMPARE: case BLANK_CHECK: - case DATA_PROTECT: return TARGET_ERROR; case MEDIUM_ERROR: @@ -850,6 +855,7 @@ retry: case NEEDS_RETRY: case FAILED: case TARGET_ERROR: + case ALLOC_ERROR: break; case ADD_TO_MLQUEUE: rtn = NEEDS_RETRY; @@ -1589,6 +1595,10 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) */ set_host_byte(scmd, DID_TARGET_FAILURE); rtn = SUCCESS; + } else if (rtn == ALLOC_ERROR) { + /* target hit out-of-space condition */ + set_host_byte(scmd, DID_ALLOC_FAILURE); + rtn = SUCCESS; } /* if rtn == FAILED, we have no sense information; * returning FAILED will wake the error handler thread diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 9bfee08..8de6697 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -710,6 +710,7 @@ EXPORT_SYMBOL(scsi_release_buffers); * -ENOLINK temporary transport failure * -EREMOTEIO permanent target failure, do not retry * -EBADE permanent nexus failure, retry on other path + * -ENOSPC No write space available * -EIO unclassified I/O error */ static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result) @@ -728,6 +729,10 @@ static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result) set_host_byte(cmd, DID_OK); error = -EBADE; break; + case DID_ALLOC_FAILURE: + set_host_byte(cmd, DID_OK); + error = -ENOSPC; + break; default: error = -EIO; break; diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 66216c1..5ead86b 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -452,6 +452,7 @@ static inline int scsi_is_wlun(unsigned int lun) * other paths */ #define DID_NEXUS_FAILURE 0x11 /* Permanent nexus failure, retry on other * paths might yield different results */ +#define DID_ALLOC_FAILURE 0x12 /* Space allocation on the device failed */ #define DRIVER_OK 0x00 /* Driver status */ /* @@ -482,6 +483,7 @@ static inline int scsi_is_wlun(unsigned int lun) #define SCSI_RETURN_NOT_HANDLED 0x2008 #define FAST_IO_FAIL 0x2009 #define TARGET_ERROR 0x200A +#define ALLOC_ERROR 0x200B /* * Midlevel queue return values. -- 1.7.12.4 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 3/3] scsi: Return ENODATA on medium error 2013-06-06 8:26 [PATCHv2 0/3] scsi: More detailed I/O errors Hannes Reinecke 2013-06-06 8:26 ` [PATCH 1/3] scsi: Document enhanced error codes Hannes Reinecke 2013-06-06 8:26 ` [PATCH 2/3] scsi: Return ENOSPC on thin provisioning failure Hannes Reinecke @ 2013-06-06 8:26 ` Hannes Reinecke 2 siblings, 0 replies; 7+ messages in thread From: Hannes Reinecke @ 2013-06-06 8:26 UTC (permalink / raw) To: James Bottomley Cc: linux-scsi, Dave Chinner, Theodore T'so, linux-fsdevel, Ren Mingxin, Hannes Reinecke When a medium error is detected the SCSI stack should return ENODATA to the upper layers. Signed-off-by: Hannes Reinecke <hare@suse.de> --- block/blk-core.c | 3 +++ drivers/scsi/scsi_error.c | 7 ++++++- drivers/scsi/scsi_lib.c | 5 +++++ include/scsi/scsi.h | 2 ++ 4 files changed, 16 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index dab068b..c5548a4 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2318,6 +2318,9 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes) case -ENOSPC: error_type = "space allocation"; break; + case -ENODATA: + error_type = "medium"; + break; case -EIO: default: error_type = "I/O"; diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index eff9b55..0a9e3f3 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -236,6 +236,7 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, * TARGET_ERROR * ADD_TO_MLQUEUE * ALLOC_ERROR + * MEDIA_FAILURE * * Notes: * When a deferred error is detected the current command has @@ -376,7 +377,7 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) if (sshdr.asc == 0x11 || /* UNRECOVERED READ ERR */ sshdr.asc == 0x13 || /* AMNF DATA FIELD */ sshdr.asc == 0x14) { /* RECORD NOT FOUND */ - return TARGET_ERROR; + return MEDIA_FAILURE; } return NEEDS_RETRY; @@ -1599,6 +1600,10 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) /* target hit out-of-space condition */ set_host_byte(scmd, DID_ALLOC_FAILURE); rtn = SUCCESS; + } else if (rtn == MEDIA_FAILURE) { + /* medium error */ + set_host_byte(scmd, DID_MEDIUM_ERROR); + rtn = SUCCESS; } /* if rtn == FAILED, we have no sense information; * returning FAILED will wake the error handler thread diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 8de6697..27ec5b4 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -711,6 +711,7 @@ EXPORT_SYMBOL(scsi_release_buffers); * -EREMOTEIO permanent target failure, do not retry * -EBADE permanent nexus failure, retry on other path * -ENOSPC No write space available + * -ENODATA Medium error * -EIO unclassified I/O error */ static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result) @@ -733,6 +734,10 @@ static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result) set_host_byte(cmd, DID_OK); error = -ENOSPC; break; + case DID_MEDIUM_ERROR: + set_host_byte(cmd, DID_OK); + error = -ENODATA; + break; default: error = -EIO; break; diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 5ead86b..c397684 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -453,6 +453,7 @@ static inline int scsi_is_wlun(unsigned int lun) #define DID_NEXUS_FAILURE 0x11 /* Permanent nexus failure, retry on other * paths might yield different results */ #define DID_ALLOC_FAILURE 0x12 /* Space allocation on the device failed */ +#define DID_MEDIUM_ERROR 0x13 /* Medium error */ #define DRIVER_OK 0x00 /* Driver status */ /* @@ -484,6 +485,7 @@ static inline int scsi_is_wlun(unsigned int lun) #define FAST_IO_FAIL 0x2009 #define TARGET_ERROR 0x200A #define ALLOC_ERROR 0x200B +#define MEDIA_FAILURE 0x200C /* * Midlevel queue return values. -- 1.7.12.4 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 0/3] scsi: More detailed I/O errors @ 2013-06-05 7:10 Hannes Reinecke 2013-06-05 7:10 ` [PATCH 1/3] scsi: Document enhanced error codes Hannes Reinecke 0 siblings, 1 reply; 7+ messages in thread From: Hannes Reinecke @ 2013-06-05 7:10 UTC (permalink / raw) To: James Bottomley Cc: linux-scsi, Dave Chinner, Theodore T'so, linux-fsdevel, Hannes Reinecke As discussed at LSF the SCSI stack already knows about several error conditions, it's just not well documented. Also there are some more conditions upper layers might be interested in. This patchset improves the documentation of the existing I/O error codes and adds two more error codes, ENOSPC for thin provisioning failure and ENODATA for medium error. Hannes Reinecke (3): scsi: Document enhanced error codes scsi: Return ENOSPC on thin provisioning failure scsi: Return ENODATA on medium error drivers/scsi/scsi_error.c | 26 ++++++++++++++++++++++---- drivers/scsi/scsi_lib.c | 21 +++++++++++++++++++++ include/scsi/scsi.h | 4 ++++ 3 files changed, 47 insertions(+), 4 deletions(-) -- 1.7.12.4 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 1/3] scsi: Document enhanced error codes 2013-06-05 7:10 [PATCH 0/3] scsi: More detailed I/O errors Hannes Reinecke @ 2013-06-05 7:10 ` Hannes Reinecke 2013-06-06 5:49 ` Ren Mingxin 0 siblings, 1 reply; 7+ messages in thread From: Hannes Reinecke @ 2013-06-05 7:10 UTC (permalink / raw) To: James Bottomley Cc: linux-scsi, Dave Chinner, Theodore T'so, linux-fsdevel, Hannes Reinecke Document the various error codes returned on I/O failure. Signed-off-by: Hannes Reinecke <hare@suse.de> --- drivers/scsi/scsi_error.c | 7 +++++-- drivers/scsi/scsi_lib.c | 11 +++++++++++ 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index f43de1e..443b0e3 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -229,8 +229,11 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, * scsi_check_sense - Examine scsi cmd sense * @scmd: Cmd to have sense checked. * - * Return value: - * SUCCESS or FAILED or NEEDS_RETRY or TARGET_ERROR + * Possible return values: + * SUCCESS + * FAILED + * NEEDS_RETRY + * TARGET_ERROR * * Notes: * When a deferred error is detected the current command has diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 86d5220..12bfa73 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -700,6 +700,17 @@ void scsi_release_buffers(struct scsi_cmnd *cmd) } EXPORT_SYMBOL(scsi_release_buffers); +/** + * __scsi_error_from_host_byte - translate SCSI error code into errno + * @cmd: SCSI command (unused) + * @result: scsi error code + * + * Translate SCSI error code into standard UNIX errno. + * Return values: + * -ENOLINK temporary transport failure + * -EREMOTEIO permanent target failure, do not retry + * -EBADE permanent nexus failure, retry on other path + */ static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result) { int error = 0; -- 1.7.12.4 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH 1/3] scsi: Document enhanced error codes 2013-06-05 7:10 ` [PATCH 1/3] scsi: Document enhanced error codes Hannes Reinecke @ 2013-06-06 5:49 ` Ren Mingxin 2013-06-06 6:58 ` Hannes Reinecke 0 siblings, 1 reply; 7+ messages in thread From: Ren Mingxin @ 2013-06-06 5:49 UTC (permalink / raw) To: Hannes Reinecke Cc: James Bottomley, linux-scsi, Dave Chinner, Theodore T'so, linux-fsdevel Hi, Hannes: I have two questions about the comments: On 06/05/2013 03:10 PM, Hannes Reinecke wrote: > Document the various error codes returned on I/O failure. > > Signed-off-by: Hannes Reinecke<hare@suse.de> > --- > drivers/scsi/scsi_error.c | 7 +++++-- > drivers/scsi/scsi_lib.c | 11 +++++++++++ > 2 files changed, 16 insertions(+), 2 deletions(-) > > diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c > index f43de1e..443b0e3 100644 > --- a/drivers/scsi/scsi_error.c > +++ b/drivers/scsi/scsi_error.c > @@ -229,8 +229,11 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, > * scsi_check_sense - Examine scsi cmd sense > * @scmd: Cmd to have sense checked. > * > - * Return value: > - * SUCCESS or FAILED or NEEDS_RETRY or TARGET_ERROR > + * Possible return values: > + * SUCCESS > + * FAILED > + * NEEDS_RETRY > + * TARGET_ERROR This is more likely to be a historical non-update issue - there is another possible return value 'ADD_TO_MLQUEUE' which may be returned by the handler check_sense() or the case of this scsi_check_sense() below, right? switch (sshdr.sense_key) { case HARDWARE_ERROR: if (scmd->device->retry_hwerror) return ADD_TO_MLQUEUE; > > * > * Notes: > * When a deferred error is detected the current command has > diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c > index 86d5220..12bfa73 100644 > --- a/drivers/scsi/scsi_lib.c > +++ b/drivers/scsi/scsi_lib.c > @@ -700,6 +700,17 @@ void scsi_release_buffers(struct scsi_cmnd *cmd) > } > EXPORT_SYMBOL(scsi_release_buffers); > > +/** > + * __scsi_error_from_host_byte - translate SCSI error code into errno > + * @cmd: SCSI command (unused) > + * @result: scsi error code > + * > + * Translate SCSI error code into standard UNIX errno. > + * Return values: > + * -ENOLINK temporary transport failure > + * -EREMOTEIO permanent target failure, do not retry > + * -EBADE permanent nexus failure, retry on other path Sorry, I'm afraid that I'm not clear why '-EIO' is not listed here... Perhaps some of them are not necessary to document for some reasons? Thanks, Ren > + */ > static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result) > { > int error = 0; ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/3] scsi: Document enhanced error codes 2013-06-06 5:49 ` Ren Mingxin @ 2013-06-06 6:58 ` Hannes Reinecke 0 siblings, 0 replies; 7+ messages in thread From: Hannes Reinecke @ 2013-06-06 6:58 UTC (permalink / raw) To: Ren Mingxin Cc: James Bottomley, linux-scsi, Dave Chinner, Theodore T'so, linux-fsdevel On 06/06/2013 07:49 AM, Ren Mingxin wrote: > Hi, Hannes: > > I have two questions about the comments: > > On 06/05/2013 03:10 PM, Hannes Reinecke wrote: >> Document the various error codes returned on I/O failure. >> >> Signed-off-by: Hannes Reinecke<hare@suse.de> >> --- >> drivers/scsi/scsi_error.c | 7 +++++-- >> drivers/scsi/scsi_lib.c | 11 +++++++++++ >> 2 files changed, 16 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c >> index f43de1e..443b0e3 100644 >> --- a/drivers/scsi/scsi_error.c >> +++ b/drivers/scsi/scsi_error.c >> @@ -229,8 +229,11 @@ static inline void scsi_eh_prt_fail_stats(struct >> Scsi_Host *shost, >> * scsi_check_sense - Examine scsi cmd sense >> * @scmd: Cmd to have sense checked. >> * >> - * Return value: >> - * SUCCESS or FAILED or NEEDS_RETRY or TARGET_ERROR >> + * Possible return values: >> + * SUCCESS >> + * FAILED >> + * NEEDS_RETRY >> + * TARGET_ERROR > > This is more likely to be a historical non-update issue - > there is another possible return value 'ADD_TO_MLQUEUE' which may be > returned by the handler check_sense() or the case of this > scsi_check_sense() below, right? > > switch (sshdr.sense_key) { > case HARDWARE_ERROR: > if (scmd->device->retry_hwerror) > return ADD_TO_MLQUEUE; > Blast. You are correct. Will be fixing it up. >> >> * >> * Notes: >> * When a deferred error is detected the current command has >> diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c >> index 86d5220..12bfa73 100644 >> --- a/drivers/scsi/scsi_lib.c >> +++ b/drivers/scsi/scsi_lib.c >> @@ -700,6 +700,17 @@ void scsi_release_buffers(struct scsi_cmnd *cmd) >> } >> EXPORT_SYMBOL(scsi_release_buffers); >> >> +/** >> + * __scsi_error_from_host_byte - translate SCSI error code into errno >> + * @cmd: SCSI command (unused) >> + * @result: scsi error code >> + * >> + * Translate SCSI error code into standard UNIX errno. >> + * Return values: >> + * -ENOLINK temporary transport failure >> + * -EREMOTEIO permanent target failure, do not retry >> + * -EBADE permanent nexus failure, retry on other path > > Sorry, I'm afraid that I'm not clear why '-EIO' is not listed here... > > Perhaps some of them are not necessary to document for some reasons? > Hmm. What with EIO being the default I've seen no need to document this. But yes, you are right, it should be documented. Cheers, Hannes ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-06-06 8:26 UTC | newest] Thread overview: 7+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-06-06 8:26 [PATCHv2 0/3] scsi: More detailed I/O errors Hannes Reinecke 2013-06-06 8:26 ` [PATCH 1/3] scsi: Document enhanced error codes Hannes Reinecke 2013-06-06 8:26 ` [PATCH 2/3] scsi: Return ENOSPC on thin provisioning failure Hannes Reinecke 2013-06-06 8:26 ` [PATCH 3/3] scsi: Return ENODATA on medium error Hannes Reinecke -- strict thread matches above, loose matches on Subject: below -- 2013-06-05 7:10 [PATCH 0/3] scsi: More detailed I/O errors Hannes Reinecke 2013-06-05 7:10 ` [PATCH 1/3] scsi: Document enhanced error codes Hannes Reinecke 2013-06-06 5:49 ` Ren Mingxin 2013-06-06 6:58 ` Hannes Reinecke
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