block: unify request timeout handling

Right now SCSI and others do their own command timeout handling.
Move those bits to the block layer.

Instead of having a timer per command, we try to be a bit more clever
and simply have one per-queue. This avoids the overhead of having to
tear down and setup a timer for each command, so it will result in a lot
less timer fiddling.

Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe
2008-09-14 05:55:09 -07:00
parent 608aeef17a
commit 242f9dcb8b
39 changed files with 399 additions and 339 deletions

View File

@ -916,7 +916,7 @@ typedef struct {
gdth_cmd_str *internal_cmd_str; /* crier for internal messages*/
dma_addr_t sense_paddr; /* sense dma-addr */
unchar priority;
int timeout;
int timeout_count; /* # of timeout calls */
volatile int wait_for_completion;
ushort status;
ulong32 info;