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| author | Yan Zheng <zheng.yan@oracle.com> | 2008-10-30 14:20:02 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-10-30 14:20:02 -0400 |
| commit | 80ff385665b7fca29fefe358a60ab0d09f9b8e87 (patch) | |
| tree | 8a801d3f268d289b62f8dac87df8b757fb3b19d4 /fs/btrfs/ordered-data.c | |
| parent | 6643558db29006825dbb10012b3f8890aca4bcd5 (diff) | |
| download | linux-80ff385665b7fca29fefe358a60ab0d09f9b8e87.tar.gz | |
Btrfs: update nodatacow code v2
This patch simplifies the nodatacow checker. If all references were created after the latest snapshot, then we can avoid COW safely. This patch also updates run_delalloc_nocow to do more fine-grained checking. Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Diffstat (limited to 'fs/btrfs/ordered-data.c')
| -rw-r--r-- | fs/btrfs/ordered-data.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index b5745bb96d40..e7317c8fda29 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -165,8 +165,7 @@ static inline struct rb_node *tree_search(struct btrfs_ordered_inode_tree *tree, * inserted. */ int btrfs_add_ordered_extent(struct inode *inode, u64 file_offset, - u64 start, u64 len, u64 disk_len, int nocow, - int compressed) + u64 start, u64 len, u64 disk_len, int type) { struct btrfs_ordered_inode_tree *tree; struct rb_node *node; @@ -183,10 +182,8 @@ int btrfs_add_ordered_extent(struct inode *inode, u64 file_offset, entry->len = len; entry->disk_len = disk_len; entry->inode = inode; - if (nocow) - set_bit(BTRFS_ORDERED_NOCOW, &entry->flags); - if (compressed) - set_bit(BTRFS_ORDERED_COMPRESSED, &entry->flags); + if (type == BTRFS_ORDERED_NOCOW || type == BTRFS_ORDERED_COMPRESSED) + set_bit(type, &entry->flags); /* one ref for the tree */ atomic_set(&entry->refs, 1); |