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authorDavid Sterba <dsterba@suse.com>2017-07-17 20:41:31 +0300
committerDavid Sterba <dsterba@suse.com>2017-08-16 17:12:05 +0300
commiteec63c65dcbeb14b59c95159eb225b1fc2310806 (patch)
treef2c54de48515e48eea07a5ccd0ead6c990fe3a8f /fs/btrfs/btrfs_inode.h
parentb52aa8c93e1fec97fcd87345b13f532f0dee8239 (diff)
downloadlinux-eec63c65dcbeb14b59c95159eb225b1fc2310806.tar.xz
btrfs: separate defrag and property compression
Add new value for compression to distinguish between defrag and property. Previously, a single variable was used and this caused clashes when the per-file 'compression' was set and a defrag -c was called. The property-compression is loaded when the file is open, defrag will overwrite the same variable and reset to 0 (ie. NONE) at when the file defragmentaion is finished. That's considered a usability bug. Now we won't touch the property value, use the defrag-compression. The precedence of defrag is higher than for property (and whole-filesystem). Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/btrfs_inode.h')
-rw-r--r--fs/btrfs/btrfs_inode.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index fa118036a84e..eccadb5f62a5 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -182,6 +182,11 @@ struct btrfs_inode {
* Cached values of inode properties
*/
unsigned prop_compress; /* per-file compression algorithm */
+ /*
+ * Force compression on the file using the defrag ioctl, could be
+ * different from prop_compress and takes precedence if set
+ */
+ unsigned defrag_compress;
struct btrfs_delayed_node *delayed_node;