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| author | NeilBrown <neilb@suse.de> | 2005-11-08 21:39:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-09 07:56:37 -0800 |
| commit | 31399d9e56abeec4d819f07eefc97f30b5d5ed75 (patch) | |
| tree | 841dee4a780a213519ca7bfbb5ba1ed1bf025c2c | |
| parent | 9c79197761b4c181a143dc6a6044f4e47d44bdcc (diff) | |
| download | kernel_samsung_smdk4412-31399d9e56abeec4d819f07eefc97f30b5d5ed75.tar.gz kernel_samsung_smdk4412-31399d9e56abeec4d819f07eefc97f30b5d5ed75.tar.bz2 kernel_samsung_smdk4412-31399d9e56abeec4d819f07eefc97f30b5d5ed75.zip | |
[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 <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/md/md.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index fe0137a5b00..013f2f27589 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<<MD_RECOVERY_RUNNING) || (1<<MD_RECOVERY_NEEDED))) { - if (mddev->recovery & (1<<MD_RECOVERY_SYNC)) { + if (test_bit(MD_RECOVERY_RUNNING, &mddev->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<<MD_RECOVERY_RUNNING) || (1<<MD_RECOVERY_NEEDED))) + + if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) || + test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) return -EBUSY; down(&mddev->reconfig_sem); if (mddev->pers && mddev->pers->sync_request) |