From: NeilBrown Date: Wed, 9 Nov 2005 05:39:29 +0000 (-0800) Subject: [PATCH] md: minor MD fixes X-Git-Tag: v2.6.15-rc1~92 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=31399d9e56abeec4d819f07eefc97f30b5d5ed75;p=linux-2.6 [PATCH] md: minor MD fixes 1/ Use reduce stack usage, because 'gcc' apparently doesn't overlay different variables that are in separate scopes... 2/ Use test_bit instead of ( .. & 1<< ..) which in this case is buggy. Thanks to Andrew Morton Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/md/md.c b/drivers/md/md.c index fe0137a5b0..013f2f2758 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -698,6 +698,7 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev) struct list_head *tmp; mdk_rdev_t *rdev2; int next_spare = mddev->raid_disks; + char nm[20]; /* make rdev->sb match mddev data.. * @@ -768,7 +769,6 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev) fixdesc |= (1 << desc_nr); rdev2->desc_nr = desc_nr; if (rdev2->raid_disk >= 0) { - char nm[20]; sprintf(nm, "rd%d", rdev2->raid_disk); sysfs_remove_link(&mddev->kobj, nm); } @@ -814,7 +814,6 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev) &rdev2->bdev->bd_disk->kobj, "block"); if (rdev2->raid_disk >= 0) { - char nm[20]; sprintf(nm, "rd%d", rdev2->raid_disk); sysfs_create_link(&mddev->kobj, &rdev2->kobj, nm); @@ -1722,9 +1721,9 @@ static ssize_t md_show_scan(mddev_t *mddev, char *page) { char *type = "none"; - if (mddev->recovery & - ((1<recovery & (1<recovery) || + test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) { + if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) { if (!test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) type = "resync"; else if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)) @@ -1741,8 +1740,9 @@ static ssize_t md_store_scan(mddev_t *mddev, const char *page, size_t len) { int canscan=0; - if (mddev->recovery & - ((1<recovery) || + test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) return -EBUSY; down(&mddev->reconfig_sem); if (mddev->pers && mddev->pers->sync_request)