diff options
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 865a288e0e29..81cb8a86324d 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -7656,6 +7656,7 @@ static int btrfs_truncate(struct btrfs_inode *inode, bool skip_writeback) .ino = btrfs_ino(inode), .min_type = BTRFS_EXTENT_DATA_KEY, .clear_extent_range = true, + .new_size = inode->vfs_inode.i_size, }; struct btrfs_root *root = inode->root; struct btrfs_fs_info *fs_info = root->fs_info; @@ -7663,12 +7664,14 @@ static int btrfs_truncate(struct btrfs_inode *inode, bool skip_writeback) int ret; struct btrfs_trans_handle *trans; const u64 min_size = btrfs_calc_metadata_size(fs_info, 1); + const u64 lock_start = round_down(inode->vfs_inode.i_size, fs_info->sectorsize); + const u64 i_size_up = round_up(inode->vfs_inode.i_size, fs_info->sectorsize); + + /* Our inode is locked and the i_size can't be changed concurrently. */ + btrfs_assert_inode_locked(inode); if (!skip_writeback) { - ret = btrfs_wait_ordered_range(inode, - round_down(inode->vfs_inode.i_size, - fs_info->sectorsize), - (u64)-1); + ret = btrfs_wait_ordered_range(inode, lock_start, (u64)-1); if (ret) return ret; } @@ -7732,19 +7735,14 @@ static int btrfs_truncate(struct btrfs_inode *inode, bool skip_writeback) while (1) { struct extent_state *cached_state = NULL; - const u64 new_size = inode->vfs_inode.i_size; - const u64 lock_start = round_down(new_size, fs_info->sectorsize); - control.new_size = new_size; btrfs_lock_extent(&inode->io_tree, lock_start, (u64)-1, &cached_state); /* * We want to drop from the next block forward in case this new * size is not block aligned since we will be keeping the last * block of the extent just the way it is. */ - btrfs_drop_extent_map_range(inode, - round_up(new_size, fs_info->sectorsize), - (u64)-1, false); + btrfs_drop_extent_map_range(inode, i_size_up, (u64)-1, false); ret = btrfs_truncate_inode_items(trans, root, &control); |