Btrfs: only inherit btrfs specific flags when creating files

[pandora-kernel.git] / fs / btrfs / ioctl.c

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 24fd75b..d2b53eb 100644 (file)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -117,7 +117,7 @@ void btrfs_update_iflags(struct inode *inode)
 /*
  * Inherit flags from the parent inode.
  *
- * Unlike extN we don't have any flags we don't want to inherit currently.
+ * Currently only the compression flags and the cow flags are inherited.
  */
 void btrfs_inherit_iflags(struct inode *inode, struct inode *dir)
 {
@@ -128,12 +128,17 @@ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir)
 
        flags = BTRFS_I(dir)->flags;
 
-       if (S_ISREG(inode->i_mode))
-               flags &= ~BTRFS_INODE_DIRSYNC;
-       else if (!S_ISDIR(inode->i_mode))
-               flags &= (BTRFS_INODE_NODUMP | BTRFS_INODE_NOATIME);
+       if (flags & BTRFS_INODE_NOCOMPRESS) {
+               BTRFS_I(inode)->flags &= ~BTRFS_INODE_COMPRESS;
+               BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS;
+       } else if (flags & BTRFS_INODE_COMPRESS) {
+               BTRFS_I(inode)->flags &= ~BTRFS_INODE_NOCOMPRESS;
+               BTRFS_I(inode)->flags |= BTRFS_INODE_COMPRESS;
+       }
+
+       if (flags & BTRFS_INODE_NODATACOW)
+               BTRFS_I(inode)->flags |= BTRFS_INODE_NODATACOW;
 
-       BTRFS_I(inode)->flags = flags;
        btrfs_update_iflags(inode);
 }