### Comments for ChangeSet
If we get a failure trying to allocate a stripe_head for a read-ahead
request (the only time we can get a failure), we skip the rest of the
request and fail the whole bio.
----------- Diffstat output ------------
./drivers/md/raid5.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletion(-)
diff ./drivers/md/raid5.c~current~ ./drivers/md/raid5.c
--- ./drivers/md/raid5.c~current~ 2003-08-24 07:03:43.000000000 +1000
+++ ./drivers/md/raid5.c 2003-08-24 08:07:16.000000000 +1000
@@ -1326,7 +1326,7 @@ static int make_request (request_queue_t
(unsigned long long)new_sector,
(unsigned long long)logical_sector);
- sh = get_active_stripe(conf, new_sector, pd_idx, 0/*(bi->bi_rw&RWA_MASK)*/);
+ sh = get_active_stripe(conf, new_sector, pd_idx, (bi->bi_rw&RWA_MASK));
if (sh) {
add_stripe_bio(sh, bi, dd_idx, (bi->bi_rw&RW_MASK));
@@ -1334,7 +1334,12 @@ static int make_request (request_queue_t
raid5_plug_device(conf);
handle_stripe(sh);
release_stripe(sh);
+ } else {
+ /* cannot get stripe for read-ahead, just give-up */
+ clear_bit(BIO_UPTODATE, &bi->bi_flags);
+ break;
}
+
}
spin_lock_irq(&conf->device_lock);
if (--bi->bi_phys_segments == 0) {
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
