diff options
| -rw-r--r-- | fs/btrfs/extent-tree.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 7938c48c72ff..6b29165f766f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -11150,9 +11150,9 @@ int btrfs_error_unpin_extent_range(struct btrfs_root *root, u64 start, u64 end) * transaction. */ static int btrfs_trim_free_extents(struct btrfs_device *device, - u64 minlen, u64 *trimmed) + struct fstrim_range *range, u64 *trimmed) { - u64 start = 0, len = 0; + u64 start = range->start, len = 0; int ret; *trimmed = 0; @@ -11188,8 +11188,8 @@ static int btrfs_trim_free_extents(struct btrfs_device *device, atomic_inc(&trans->use_count); spin_unlock(&fs_info->trans_lock); - ret = find_free_dev_extent_start(trans, device, minlen, start, - &start, &len); + ret = find_free_dev_extent_start(trans, device, range->minlen, + start, &start, &len); if (trans) btrfs_put_transaction(trans); @@ -11201,6 +11201,16 @@ static int btrfs_trim_free_extents(struct btrfs_device *device, break; } + /* If we are out of the passed range break */ + if (start > range->start + range->len - 1) { + mutex_unlock(&fs_info->chunk_mutex); + ret = 0; + break; + } + + start = max(range->start, start); + len = min(range->len, len); + ret = btrfs_issue_discard(device->bdev, start, len, &bytes); up_read(&fs_info->commit_root_sem); mutex_unlock(&fs_info->chunk_mutex); @@ -11211,6 +11221,10 @@ static int btrfs_trim_free_extents(struct btrfs_device *device, start += len; *trimmed += bytes; + /* We've trimmed enough */ + if (*trimmed >= range->len) + break; + if (fatal_signal_pending(current)) { ret = -ERESTARTSYS; break; @@ -11295,8 +11309,7 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range) mutex_lock(&fs_info->fs_devices->device_list_mutex); devices = &fs_info->fs_devices->devices; list_for_each_entry(device, devices, dev_list) { - ret = btrfs_trim_free_extents(device, range->minlen, - &group_trimmed); + ret = btrfs_trim_free_extents(device, range, &group_trimmed); if (ret) { dev_failed++; dev_ret = ret; |