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authorLinus Torvalds <torvalds@linux-foundation.org>2022-11-12 07:27:13 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-11-12 07:27:13 +0300
commit8f2975c2bb4c6fd43d778db55481fc11806c8773 (patch)
treeac676a243308bd0979d7503fe2b3ca0ebe4da263
parentd7c2b1f64e44c98206752a1599b0203ae5e92f27 (diff)
parente20e81a24a4d58744a29715aac2f795cd1651955 (diff)
downloadlinux-8f2975c2bb4c6fd43d778db55481fc11806c8773.tar.xz
Merge tag 'ata-6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata fixes from Damien Le Moal: "Several libata generic code fixes for rc5: - Add missing translation of the SYNCHRONIZE CACHE 16 scsi command as this command is mandatory for host-managed ZBC drives. The lack of support for it in libata-scsi was causing issues with some passthrough applications using ZBC drives (from Shin'ichiro). - Fix the error path of libata-transport host, port, link and device attributes initialization (from Yingliang). - Prevent issuing new commands to a drive that is in the NCQ error state and undergoing recovery (From Niklas). This bug went unnoticed for a long time as commands issued to a drive in error state are aborted immediately and retried by the scsi layer, hiding the useless abort-and-retry sequence" * tag 'ata-6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: ata: libata-core: do not issue non-internal commands once EH is pending ata: libata-transport: fix error handling in ata_tdev_add() ata: libata-transport: fix error handling in ata_tlink_add() ata: libata-transport: fix error handling in ata_tport_add() ata: libata-transport: fix double ata_host_put() in ata_tport_add() ata: libata-scsi: fix SYNCHRONIZE CACHE (16) command failure
-rw-r--r--drivers/ata/libata-scsi.c13
-rw-r--r--drivers/ata/libata-transport.c19
2 files changed, 28 insertions, 4 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index e2ebb0b065e2..06a3d95ed8f9 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3264,6 +3264,7 @@ static unsigned int ata_scsiop_maint_in(struct ata_scsi_args *args, u8 *rbuf)
case REPORT_LUNS:
case REQUEST_SENSE:
case SYNCHRONIZE_CACHE:
+ case SYNCHRONIZE_CACHE_16:
case REZERO_UNIT:
case SEEK_6:
case SEEK_10:
@@ -3922,6 +3923,7 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
return ata_scsi_write_same_xlat;
case SYNCHRONIZE_CACHE:
+ case SYNCHRONIZE_CACHE_16:
if (ata_try_flush_cache(dev))
return ata_scsi_flush_xlat;
break;
@@ -3962,9 +3964,19 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev)
{
+ struct ata_port *ap = dev->link->ap;
u8 scsi_op = scmd->cmnd[0];
ata_xlat_func_t xlat_func;
+ /*
+ * scsi_queue_rq() will defer commands if scsi_host_in_recovery().
+ * However, this check is done without holding the ap->lock (a libata
+ * specific lock), so we can have received an error irq since then,
+ * therefore we must check if EH is pending, while holding ap->lock.
+ */
+ if (ap->pflags & (ATA_PFLAG_EH_PENDING | ATA_PFLAG_EH_IN_PROGRESS))
+ return SCSI_MLQUEUE_DEVICE_BUSY;
+
if (unlikely(!scmd->cmd_len))
goto bad_cdb_len;
@@ -4145,6 +4157,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
* turning this into a no-op.
*/
case SYNCHRONIZE_CACHE:
+ case SYNCHRONIZE_CACHE_16:
fallthrough;
/* no-op's, complete with success */
diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c
index a7e9a75410a3..e4fb9d1b9b39 100644
--- a/drivers/ata/libata-transport.c
+++ b/drivers/ata/libata-transport.c
@@ -301,7 +301,9 @@ int ata_tport_add(struct device *parent,
pm_runtime_enable(dev);
pm_runtime_forbid(dev);
- transport_add_device(dev);
+ error = transport_add_device(dev);
+ if (error)
+ goto tport_transport_add_err;
transport_configure_device(dev);
error = ata_tlink_add(&ap->link);
@@ -312,12 +314,12 @@ int ata_tport_add(struct device *parent,
tport_link_err:
transport_remove_device(dev);
+ tport_transport_add_err:
device_del(dev);
tport_err:
transport_destroy_device(dev);
put_device(dev);
- ata_host_put(ap->host);
return error;
}
@@ -456,7 +458,9 @@ int ata_tlink_add(struct ata_link *link)
goto tlink_err;
}
- transport_add_device(dev);
+ error = transport_add_device(dev);
+ if (error)
+ goto tlink_transport_err;
transport_configure_device(dev);
ata_for_each_dev(ata_dev, link, ALL) {
@@ -471,6 +475,7 @@ int ata_tlink_add(struct ata_link *link)
ata_tdev_delete(ata_dev);
}
transport_remove_device(dev);
+ tlink_transport_err:
device_del(dev);
tlink_err:
transport_destroy_device(dev);
@@ -708,7 +713,13 @@ static int ata_tdev_add(struct ata_device *ata_dev)
return error;
}
- transport_add_device(dev);
+ error = transport_add_device(dev);
+ if (error) {
+ device_del(dev);
+ ata_tdev_free(ata_dev);
+ return error;
+ }
+
transport_configure_device(dev);
return 0;
}