[PATCH v5 01/18] btrfs: introduce quota mode

Boris Burkov
2023-07-27T22:15:10Z

In preparation for introducing simple quotas, change from a binary
setting for quotas to an enum based mode. Initially, the possible modes
are disabled/full. Full quotas is normal btrfs qgroups.

Signed-off-by: Boris Burkov <boris@bur.io>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
---
fs/btrfs/qgroup.c | 7 +++++++
fs/btrfs/qgroup.h | 6 ++++++
2 files changed, 13 insertions(+)

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 2637d6b157ff..0a2085ae9bcd 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -30,6 +30,13 @@
#include "root-tree.h"
#include "tree-checker.h"

+enum btrfs_qgroup_mode btrfs_qgroup_mode(struct btrfs_fs_info *fs_info)
+{
+ if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags))
+ return BTRFS_QGROUP_MODE_DISABLED;
+ return BTRFS_QGROUP_MODE_FULL;
+}
+
/*
* Helpers to access qgroup reservation
*
diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h
index 7bffa10589d6..bb15e55f00b8 100644
--- a/fs/btrfs/qgroup.h
+++ b/fs/btrfs/qgroup.h
@@ -250,6 +250,12 @@ enum {
};

int btrfs_quota_enable(struct btrfs_fs_info *fs_info);
+enum btrfs_qgroup_mode {
+ BTRFS_QGROUP_MODE_DISABLED,
+ BTRFS_QGROUP_MODE_FULL,
+};
+
+enum btrfs_qgroup_mode btrfs_qgroup_mode(struct btrfs_fs_info *fs_info);
int btrfs_quota_disable(struct btrfs_fs_info *fs_info);
int btrfs_qgroup_rescan(struct btrfs_fs_info *fs_info);
void btrfs_qgroup_rescan_resume(struct btrfs_fs_info *fs_info);
--
2.41.0