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Merge branch 'anand/sysfs-updates-v4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4

Browse Source 
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Chris Mason
2015-10-12 16:24:15 -07:00
parent 640926ffdd 73416dab23
commit 62fb50ab7c
17 changed files with 198 additions and 177 deletions
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36
fs/btrfs/dev-replace.c
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@ -327,19 +327,6 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
args->start.tgtdev_name[0] == '\0')
return -EINVAL;
/*
* Here we commit the transaction to make sure commit_total_bytes
* of all the devices are updated.
*/
trans = btrfs_attach_transaction(root);
if (!IS_ERR(trans)) {
ret = btrfs_commit_transaction(trans, root);
if (ret)
return ret;
} else if (PTR_ERR(trans) != -ENOENT) {
return PTR_ERR(trans);
}
/* the disk copy procedure reuses the scrub code */
mutex_lock(&fs_info->volume_mutex);
ret = btrfs_dev_replace_find_srcdev(root, args->start.srcdevid,
@ -356,6 +343,19 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
if (ret)
return ret;
/*
* Here we commit the transaction to make sure commit_total_bytes
* of all the devices are updated.
*/
trans = btrfs_attach_transaction(root);
if (!IS_ERR(trans)) {
ret = btrfs_commit_transaction(trans, root);
if (ret)
return ret;
} else if (PTR_ERR(trans) != -ENOENT) {
return PTR_ERR(trans);
}
btrfs_dev_replace_lock(dev_replace);
switch (dev_replace->replace_state) {
case BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED:
@ -375,10 +375,6 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
WARN_ON(!tgt_device);
dev_replace->tgtdev = tgt_device;
ret = btrfs_kobj_add_device(tgt_device->fs_devices, tgt_device);
if (ret)
btrfs_err(root->fs_info, "kobj add dev failed %d\n", ret);
btrfs_info_in_rcu(root->fs_info,
"dev_replace from %s (devid %llu) to %s started",
src_device->missing ? "<missing disk>" :
@ -401,6 +397,10 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
args->result = BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR;
btrfs_dev_replace_unlock(dev_replace);
ret = btrfs_sysfs_add_device_link(tgt_device->fs_devices, tgt_device);
if (ret)
btrfs_err(root->fs_info, "kobj add dev failed %d\n", ret);
btrfs_wait_ordered_roots(root->fs_info, -1);
/* force writing the updated state information to disk */
@ -586,7 +586,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
mutex_unlock(&uuid_mutex);
/* replace the sysfs entry */
btrfs_kobj_rm_device(fs_info->fs_devices, src_device);
btrfs_sysfs_rm_device_link(fs_info->fs_devices, src_device);
btrfs_rm_dev_replace_free_srcdev(fs_info, src_device);
/* write back the superblocks */