From 71951f35a6e413f2bfbd41829af8cf10a890aeb6 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Tue, 27 Mar 2007 09:16:29 -0400 Subject: Btrfs: add generation field to file extent Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 13 +++++++++++++ fs/btrfs/file-item.c | 1 + 2 files changed, 14 insertions(+) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index a4ad39b58a4b..c3fa12a6b59e 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -192,6 +192,7 @@ struct btrfs_root_item { } __attribute__ ((__packed__)); struct btrfs_file_extent_item { + __le64 generation; /* * disk space consumed by the extent, checksum blocks are included * in these numbers @@ -764,6 +765,18 @@ static inline void btrfs_set_file_extent_disk_blocknr(struct e->disk_blocknr = cpu_to_le64(val); } +static inline u64 btrfs_file_extent_generation(struct btrfs_file_extent_item *e) +{ + return le64_to_cpu(e->generation); +} + +static inline void btrfs_set_file_extent_generation(struct + btrfs_file_extent_item *e, + u64 val) +{ + e->generation = cpu_to_le64(val); +} + static inline u64 btrfs_file_extent_disk_num_blocks(struct btrfs_file_extent_item *e) { diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 4a0367d702b7..09de270c5a52 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -32,6 +32,7 @@ int btrfs_alloc_file_extent(struct btrfs_trans_handle *trans, btrfs_set_file_extent_disk_num_blocks(item, ins.offset); btrfs_set_file_extent_offset(item, 0); btrfs_set_file_extent_num_blocks(item, ins.offset); + btrfs_set_file_extent_generation(item, trans->transid); mark_buffer_dirty(path.nodes[0]); *result = ins.objectid; btrfs_release_path(root, &path); -- cgit v1.2.2