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Subject[2.4.23][patch]no DRQ after issuing WRITE
Hi,

basically same patch as for 2.6.0-test 11

against following problem:

hda: no DRQ after issuing WRITE
ide0: reset: success
hda: status timeout: status=0xd0 { Busy }

Regards
Daniel Lux

--- linux-2.4.23.org/drivers/ide/ide-iops.c 2003-12-15 14:32:39.000000000 +0100
+++ linux-2.4.23/drivers/ide/ide-iops.c 2003-12-15 19:55:33.000000000 +0100
@@ -664,12 +664,22 @@
if ((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) {
local_irq_set(flags);
timeout += jiffies;
- while ((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) {
+ stat = hwif->INB(IDE_STATUS_REG);
+ while (stat & BUSY_STAT) {
if (time_after(jiffies, timeout)) {
- local_irq_restore(flags);
- *startstop = DRIVER(drive)->error(drive, "status timeout", stat);
- return 1;
+ /*
+ * do one more status read in case we were interrupted between last
+ * stat = hwif->INB(IDE_STATUS_REG) and time_after(jiffies, timeout)
+ * in wich case the timeout might have been shorter than specified.
+ */
+ if ((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) {
+ local_irq_restore(flags);
+ *startstop = DRIVER(drive)->error(drive, "status timeout", stat);
+ return 1;
+ }
}
+ else
+ stat = hwif->INB(IDE_STATUS_REG);
}
local_irq_restore(flags);
}
-
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