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btrfs: introduce BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING to skip qgroup accounting 

The new flag will make btrfs qgroup skip all its time consuming
qgroup accounting.

The lifespan is the same as BTRFS_QGROUP_RUNTIME_FLAG_CANCEL_RESCAN,
only get cleared after a new rescan.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2022-08-24 09:14:08 +08:00 committed by David Sterba
parent e562a8bdf6
commit e15e9f43c7
2 changed files with 12 additions and 4 deletions
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15
fs/btrfs/qgroup.c
View File

@ -336,7 +336,8 @@ int btrfs_verify_qgroup_counts(struct btrfs_fs_info *fs_info, u64 qgroupid,
static void qgroup_mark_inconsistent(struct btrfs_fs_info *fs_info)
{
fs_info->qgroup_flags |= (BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT |
BTRFS_QGROUP_RUNTIME_FLAG_CANCEL_RESCAN);
BTRFS_QGROUP_RUNTIME_FLAG_CANCEL_RESCAN |
BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING);
}
/*
@ -1813,6 +1814,9 @@ int btrfs_qgroup_trace_extent_post(struct btrfs_trans_handle *trans,
*/
ASSERT(trans != NULL);
if (trans->fs_info->qgroup_flags & BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING)
return 0;
ret = btrfs_find_all_roots(NULL, trans->fs_info, bytenr, 0, &old_root,
true);
if (ret < 0) {
@ -2627,7 +2631,8 @@ int btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans, u64 bytenr,
* If quotas get disabled meanwhile, the resources need to be freed and
* we can't just exit here.
*/
if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags))
if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags) ||
fs_info->qgroup_flags & BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING)
goto out_free;
if (new_roots) {
@ -2723,7 +2728,8 @@ int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans)
num_dirty_extents++;
trace_btrfs_qgroup_account_extents(fs_info, record);
if (!ret) {
if (!ret && !(fs_info->qgroup_flags &
BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING)) {
/*
* Old roots should be searched when inserting qgroup
* extent record
@ -3460,7 +3466,8 @@ qgroup_rescan_init(struct btrfs_fs_info *fs_info, u64 progress_objectid,
memset(&fs_info->qgroup_rescan_progress, 0,
sizeof(fs_info->qgroup_rescan_progress));
fs_info->qgroup_flags &= ~BTRFS_QGROUP_RUNTIME_FLAG_CANCEL_RESCAN;
fs_info->qgroup_flags &= ~(BTRFS_QGROUP_RUNTIME_FLAG_CANCEL_RESCAN |
BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING);
fs_info->qgroup_rescan_progress.objectid = progress_objectid;
init_completion(&fs_info->qgroup_rescan_completion);
mutex_unlock(&fs_info->qgroup_rescan_lock);

1
fs/btrfs/qgroup.h
View File

@ -101,6 +101,7 @@
*/
#define BTRFS_QGROUP_RUNTIME_FLAG_CANCEL_RESCAN (1UL << 3)
#define BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING (1UL << 4)
/*
* Record a dirty extent, and info qgroup to update quota on it