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md: remove 'go_faster' option from ->sync_request()

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This option is not well justified and testing suggests that
it hardly ever makes any difference.

The comment suggests there might be a need to wait for non-resync
activity indicated by ->nr_waiting, however raise_barrier()
already waits for all of that.

So just remove it to simplify reasoning about speed limiting.

This allows us to remove a 'FIXME' comment from raid5.c as that
never used the flag.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown
2015-02-19 16:04:40 +11:00
parent 50c37b136a
commit 09314799e4
5 changed files with 6 additions and 21 deletions
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3
drivers/md/raid5.c
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@@ -5050,8 +5050,7 @@ ret:
return reshape_sectors;
}
/* FIXME go_faster isn't used */
static inline sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipped, int go_faster)
static inline sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipped)
{
struct r5conf *conf = mddev->private;
struct stripe_head *sh;