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authorQu Wenruo <wqu@suse.com>2017-12-12 10:34:25 +0300
committerDavid Sterba <dsterba@suse.com>2018-03-31 02:41:13 +0300
commitdba213242fbcfc5495004ab76ca27c35ce1bf304 (patch)
tree44eef478bbedfc70a530166189d22ddf88ef35f5 /fs/btrfs
parentf59c0347d4be22dad5812b5b14bf94ac0efd371a (diff)
downloadlinux-dba213242fbcfc5495004ab76ca27c35ce1bf304.tar.xz
btrfs: qgroup: Make qgroup_reserve and its callers to use separate reservation type
Since most callers of qgroup_reserve() are already defined by type, converting qgroup_reserve() is quite an easy work. Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/qgroup.c20
1 files changed, 9 insertions, 11 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 252af87340cc..58a8b6930960 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2391,17 +2391,18 @@ out:
static bool qgroup_check_limits(const struct btrfs_qgroup *qg, u64 num_bytes)
{
if ((qg->lim_flags & BTRFS_QGROUP_LIMIT_MAX_RFER) &&
- qg->reserved + (s64)qg->rfer + num_bytes > qg->max_rfer)
+ qgroup_rsv_total(qg) + (s64)qg->rfer + num_bytes > qg->max_rfer)
return false;
if ((qg->lim_flags & BTRFS_QGROUP_LIMIT_MAX_EXCL) &&
- qg->reserved + (s64)qg->excl + num_bytes > qg->max_excl)
+ qgroup_rsv_total(qg) + (s64)qg->excl + num_bytes > qg->max_excl)
return false;
return true;
}
-static int qgroup_reserve(struct btrfs_root *root, u64 num_bytes, bool enforce)
+static int qgroup_reserve(struct btrfs_root *root, u64 num_bytes, bool enforce,
+ enum btrfs_qgroup_rsv_type type)
{
struct btrfs_root *quota_root;
struct btrfs_qgroup *qgroup;
@@ -2453,7 +2454,7 @@ retry:
* Commit the tree and retry, since we may have
* deletions which would free up space.
*/
- if (!retried && qg->reserved > 0) {
+ if (!retried && qgroup_rsv_total(qg) > 0) {
struct btrfs_trans_handle *trans;
spin_unlock(&fs_info->qgroup_lock);
@@ -2493,7 +2494,7 @@ retry:
qg = unode_aux_to_qgroup(unode);
trace_qgroup_update_reserve(fs_info, qg, num_bytes);
- qg->reserved += num_bytes;
+ qgroup_rsv_add(qg, num_bytes, type);
}
out:
@@ -2540,10 +2541,7 @@ void btrfs_qgroup_free_refroot(struct btrfs_fs_info *fs_info,
qg = unode_aux_to_qgroup(unode);
trace_qgroup_update_reserve(fs_info, qg, -(s64)num_bytes);
- if (qg->reserved < num_bytes)
- report_reserved_underflow(fs_info, qg, num_bytes);
- else
- qg->reserved -= num_bytes;
+ qgroup_rsv_release(qg, num_bytes, type);
list_for_each_entry(glist, &qg->groups, next_group) {
ret = ulist_add(fs_info->qgroup_ulist,
@@ -2931,7 +2929,7 @@ int btrfs_qgroup_reserve_data(struct inode *inode,
to_reserve, QGROUP_RESERVE);
if (ret < 0)
goto cleanup;
- ret = qgroup_reserve(root, to_reserve, true);
+ ret = qgroup_reserve(root, to_reserve, true, BTRFS_QGROUP_RSV_DATA);
if (ret < 0)
goto cleanup;
@@ -3084,7 +3082,7 @@ int btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes,
BUG_ON(num_bytes != round_down(num_bytes, fs_info->nodesize));
trace_qgroup_meta_reserve(root, (s64)num_bytes);
- ret = qgroup_reserve(root, num_bytes, enforce);
+ ret = qgroup_reserve(root, num_bytes, enforce, BTRFS_QGROUP_RSV_META);
if (ret < 0)
return ret;
atomic64_add(num_bytes, &root->qgroup_meta_rsv);