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authorStefan Behrens <sbehrens@giantdisaster.de>2012-11-06 13:15:27 +0100
committerJosef Bacik <jbacik@fusionio.com>2012-12-12 17:15:42 -0500
commit8dabb7420f014ab0f9f04afae8ae046c0f48b270 (patch)
tree6342f353ac71003d749a776dd6dc6a18b1bd959b /fs/btrfs/scrub.c
parente93c89c1aaaaaec3487c4c18dd02360371790722 (diff)
downloadlwn-8dabb7420f014ab0f9f04afae8ae046c0f48b270.tar.gz
lwn-8dabb7420f014ab0f9f04afae8ae046c0f48b270.zip
Btrfs: change core code of btrfs to support the device replace operations
This commit contains all the essential changes to the core code of Btrfs for support of the device replace procedure. Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/scrub.c')
-rw-r--r--fs/btrfs/scrub.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 61157a26cf2a..30cbf6921c0b 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2843,12 +2843,17 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
return -EIO;
}
- if (dev->scrub_device) {
+ btrfs_dev_replace_lock(&fs_info->dev_replace);
+ if (dev->scrub_device ||
+ (!is_dev_replace &&
+ btrfs_dev_replace_is_ongoing(&fs_info->dev_replace))) {
+ btrfs_dev_replace_unlock(&fs_info->dev_replace);
mutex_unlock(&fs_info->scrub_lock);
mutex_unlock(&fs_info->fs_devices->device_list_mutex);
scrub_workers_put(fs_info);
return -EINPROGRESS;
}
+ btrfs_dev_replace_unlock(&fs_info->dev_replace);
sctx = scrub_setup_ctx(dev, is_dev_replace);
if (IS_ERR(sctx)) {
mutex_unlock(&fs_info->scrub_lock);