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Diffstat (limited to 'fs/btrfs/qgroup.c')
-rw-r--r--fs/btrfs/qgroup.c23
1 files changed, 17 insertions, 6 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index c297909f1506..a0e8deca87a7 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1407,7 +1407,7 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
fs_info->quota_root = NULL;
fs_info->qgroup_flags &= ~BTRFS_QGROUP_STATUS_FLAG_ON;
fs_info->qgroup_flags &= ~BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE;
- fs_info->qgroup_drop_subtree_thres = BTRFS_MAX_LEVEL;
+ fs_info->qgroup_drop_subtree_thres = BTRFS_QGROUP_DROP_SUBTREE_THRES_DEFAULT;
spin_unlock(&fs_info->qgroup_lock);
btrfs_free_qgroup_config(fs_info);
@@ -2005,16 +2005,26 @@ int btrfs_qgroup_trace_extent_nolock(struct btrfs_fs_info *fs_info,
struct btrfs_qgroup_extent_record *record)
{
struct btrfs_qgroup_extent_record *existing, *ret;
- unsigned long bytenr = record->bytenr;
+ const unsigned long index = (record->bytenr >> fs_info->sectorsize_bits);
if (!btrfs_qgroup_full_accounting(fs_info))
return 1;
+#if BITS_PER_LONG == 32
+ if (record->bytenr >= MAX_LFS_FILESIZE) {
+ btrfs_err_rl(fs_info,
+"qgroup record for extent at %llu is beyond 32bit page cache and xarray index limit",
+ record->bytenr);
+ btrfs_err_32bit_limit(fs_info);
+ return -EOVERFLOW;
+ }
+#endif
+
lockdep_assert_held(&delayed_refs->lock);
trace_btrfs_qgroup_trace_extent(fs_info, record);
xa_lock(&delayed_refs->dirty_extents);
- existing = xa_load(&delayed_refs->dirty_extents, bytenr);
+ existing = xa_load(&delayed_refs->dirty_extents, index);
if (existing) {
if (record->data_rsv && !existing->data_rsv) {
existing->data_rsv = record->data_rsv;
@@ -2024,7 +2034,7 @@ int btrfs_qgroup_trace_extent_nolock(struct btrfs_fs_info *fs_info,
return 1;
}
- ret = __xa_store(&delayed_refs->dirty_extents, record->bytenr, record, GFP_ATOMIC);
+ ret = __xa_store(&delayed_refs->dirty_extents, index, record, GFP_ATOMIC);
xa_unlock(&delayed_refs->dirty_extents);
if (xa_is_err(ret)) {
qgroup_mark_inconsistent(fs_info);
@@ -2129,6 +2139,7 @@ int btrfs_qgroup_trace_extent(struct btrfs_trans_handle *trans, u64 bytenr,
struct btrfs_fs_info *fs_info = trans->fs_info;
struct btrfs_qgroup_extent_record *record;
struct btrfs_delayed_ref_root *delayed_refs;
+ const unsigned long index = (bytenr >> fs_info->sectorsize_bits);
int ret;
if (!btrfs_qgroup_full_accounting(fs_info) || bytenr == 0 || num_bytes == 0)
@@ -2137,7 +2148,7 @@ int btrfs_qgroup_trace_extent(struct btrfs_trans_handle *trans, u64 bytenr,
if (!record)
return -ENOMEM;
- if (xa_reserve(&trans->transaction->delayed_refs.dirty_extents, bytenr, GFP_NOFS)) {
+ if (xa_reserve(&trans->transaction->delayed_refs.dirty_extents, index, GFP_NOFS)) {
kfree(record);
return -ENOMEM;
}
@@ -2152,7 +2163,7 @@ int btrfs_qgroup_trace_extent(struct btrfs_trans_handle *trans, u64 bytenr,
spin_unlock(&delayed_refs->lock);
if (ret) {
/* Clean up if insertion fails or item exists. */
- xa_release(&delayed_refs->dirty_extents, record->bytenr);
+ xa_release(&delayed_refs->dirty_extents, index);
kfree(record);
return 0;
}