From 1442577bf6da1a31ae6555212202be9a2cec5642 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 16 Oct 2009 15:55:25 +1100 Subject: Revert "md: do not progress the resync process if the stripe was blocked" This reverts commit df10cfbc4d7ab93260d997df754219d390d62a9d. This patch was based on a misunderstanding and risks introducing a busy-wait loop. So revert it. Acked-by: Dan Williams Signed-off-by: NeilBrown --- drivers/md/raid5.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) (limited to 'drivers/md/raid5.c') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 94829804ab7..ec14ff5b508 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -2896,7 +2896,7 @@ static void handle_stripe_expansion(raid5_conf_t *conf, struct stripe_head *sh, * */ -static bool handle_stripe5(struct stripe_head *sh) +static void handle_stripe5(struct stripe_head *sh) { raid5_conf_t *conf = sh->raid_conf; int disks = sh->disks, i; @@ -3167,11 +3167,9 @@ static bool handle_stripe5(struct stripe_head *sh) ops_run_io(sh, &s); return_io(return_bi); - - return blocked_rdev == NULL; } -static bool handle_stripe6(struct stripe_head *sh) +static void handle_stripe6(struct stripe_head *sh) { raid5_conf_t *conf = sh->raid_conf; int disks = sh->disks; @@ -3455,17 +3453,14 @@ static bool handle_stripe6(struct stripe_head *sh) ops_run_io(sh, &s); return_io(return_bi); - - return blocked_rdev == NULL; } -/* returns true if the stripe was handled */ -static bool handle_stripe(struct stripe_head *sh) +static void handle_stripe(struct stripe_head *sh) { if (sh->raid_conf->level == 6) - return handle_stripe6(sh); + handle_stripe6(sh); else - return handle_stripe5(sh); + handle_stripe5(sh); } static void raid5_activate_delayed(raid5_conf_t *conf) @@ -4277,9 +4272,7 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski clear_bit(STRIPE_INSYNC, &sh->state); spin_unlock(&sh->lock); - /* wait for any blocked device to be handled */ - while (unlikely(!handle_stripe(sh))) - ; + handle_stripe(sh); release_stripe(sh); return STRIPE_SECTORS; -- cgit v1.2.3