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| author | Dan Williams <dan.j.williams@intel.com> | 2012-07-09 19:33:25 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-07-20 09:05:54 +0100 |
| commit | 2955b47d2c1983998a8c5915cb96884e67f7cb53 (patch) | |
| tree | e21ace685c01c698f20b7cb81b0097519c2fa18c /drivers/scsi | |
| parent | 529f9a765509c2c141ecfee0c54e17bf9a6b8bc1 (diff) | |
| download | op-kernel-dev-2955b47d2c1983998a8c5915cb96884e67f7cb53.zip op-kernel-dev-2955b47d2c1983998a8c5915cb96884e67f7cb53.tar.gz | |
[SCSI] async: introduce 'async_domain' type
This is in preparation for teaching async_synchronize_full() to sync all
pending async work, and not just on the async_running domain. This
conversion is functionally equivalent, just embedding the existing list
in a new async_domain type.
The .registered attribute is used in a later patch to distinguish
between domains that want to be flushed by async_synchronize_full()
versus those that only expect async_synchronize_{full|cookie}_domain to
be used for flushing.
[jejb: add async.h to scsi_priv.h for struct async_domain]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/libsas/sas_ata.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/scsi.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/scsi_priv.h | 3 |
3 files changed, 5 insertions, 3 deletions
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index bec3bc8..a59fcdc 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -742,7 +742,7 @@ static void async_sas_ata_eh(void *data, async_cookie_t cookie) void sas_ata_strategy_handler(struct Scsi_Host *shost) { struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost); - LIST_HEAD(async); + ASYNC_DOMAIN_EXCLUSIVE(async); int i; /* it's ok to defer revalidation events during ata eh, these diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index bbbc9c91..4cade88 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -54,6 +54,7 @@ #include <linux/notifier.h> #include <linux/cpu.h> #include <linux/mutex.h> +#include <linux/async.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -91,7 +92,7 @@ EXPORT_SYMBOL(scsi_logging_level); #endif /* sd, scsi core and power management need to coordinate flushing async actions */ -LIST_HEAD(scsi_sd_probe_domain); +ASYNC_DOMAIN(scsi_sd_probe_domain); EXPORT_SYMBOL(scsi_sd_probe_domain); /* NB: These are exposed through /proc/scsi/scsi and form part of the ABI. diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index 13d74da..8f9a0ca 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -2,6 +2,7 @@ #define _SCSI_PRIV_H #include <linux/device.h> +#include <linux/async.h> #include <scsi/scsi_device.h> struct request_queue; @@ -163,7 +164,7 @@ static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; } static inline void scsi_autopm_put_host(struct Scsi_Host *h) {} #endif /* CONFIG_PM_RUNTIME */ -extern struct list_head scsi_sd_probe_domain; +extern struct async_domain scsi_sd_probe_domain; /* * internal scsi timeout functions: for use by mid-layer and transport |
