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[SCSI] allow sleeping in ->eh_host_reset_handler()

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Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Jeff Garzik
2005-05-28 07:57:14 -04:00
parent 68b3aa7c98
commit df0ae2497d
38 changed files with 177 additions and 44 deletions
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11
drivers/scsi/ide-scsi.c
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@ -46,6 +46,7 @@
#include <linux/slab.h>
#include <linux/ide.h>
#include <linux/scatterlist.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/bitops.h>
@ -1026,11 +1027,13 @@ static int idescsi_eh_reset (struct scsi_cmnd *cmd)
return FAILED;
}
spin_lock_irq(&ide_lock);
spin_lock_irq(cmd->device->host->host_lock);
spin_lock(&ide_lock);
if (!scsi->pc || (req = scsi->pc->rq) != HWGROUP(drive)->rq || !HWGROUP(drive)->handler) {
printk (KERN_WARNING "ide-scsi: No active request in idescsi_eh_reset\n");
spin_unlock(&ide_lock);
spin_unlock_irq(cmd->device->host->host_lock);
return FAILED;
}
@ -1052,16 +1055,15 @@ static int idescsi_eh_reset (struct scsi_cmnd *cmd)
HWGROUP(drive)->rq = NULL;
HWGROUP(drive)->handler = NULL;
HWGROUP(drive)->busy = 1; /* will set this to zero when ide reset finished */
spin_unlock_irq(&ide_lock);
spin_unlock(&ide_lock);
ide_do_reset(drive);
/* ide_do_reset starts a polling handler which restarts itself every 50ms until the reset finishes */
do {
set_current_state(TASK_UNINTERRUPTIBLE);
spin_unlock_irq(cmd->device->host->host_lock);
schedule_timeout(HZ/20);
msleep(50);
spin_lock_irq(cmd->device->host->host_lock);
} while ( HWGROUP(drive)->handler );
@ -1072,6 +1074,7 @@ static int idescsi_eh_reset (struct scsi_cmnd *cmd)
ret = FAILED;
}
spin_unlock_irq(cmd->device->host->host_lock);
return ret;
}