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authorTejun Heo <tj@kernel.org>2008-11-03 20:04:37 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-12-28 22:43:21 -0500
commitece180d1cfe5fa751eaa85bf796cf28b2150af15 (patch)
treeaca9d485036858ed3f1859e679473cebd3476845 /include/linux/libata.h
parentad74e4c18d0962397314460d0da312e72c8bd02d (diff)
libata: perform port detach in EH
ata_port_detach() first made sure EH saw ATA_PFLAG_UNLOADING and then assumed EH context belongs to it and performed detach operation itself. However, UNLOADING doesn't disable all of EH and this could lead to problems including triggering WARN_ON()'s in EH path. This patch makes port detach behave more like other EH actions such that ata_port_detach() requests EH to detach and waits for completion. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 3b2a0c6444ee..3449de597eff 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -213,10 +213,11 @@ enum {
ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */
ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */
ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */
- ATA_PFLAG_UNLOADING = (1 << 5), /* module is unloading */
ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */
ATA_PFLAG_INITIALIZING = (1 << 7), /* being initialized, don't touch */
ATA_PFLAG_RESETTING = (1 << 8), /* reset in progress */
+ ATA_PFLAG_UNLOADING = (1 << 9), /* driver is being unloaded */
+ ATA_PFLAG_UNLOADED = (1 << 10), /* driver is unloaded */
ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */
ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */