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-rw-r--r--fs/btrfs/export.c12
-rw-r--r--fs/btrfs/inode.c6
-rw-r--r--fs/btrfs/super.c1
3 files changed, 7 insertions, 12 deletions
diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index 0ccf9a8afcdf..9786963b07e5 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -65,7 +65,6 @@ static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
{
struct btrfs_fs_info *fs_info = btrfs_sb(sb)->fs_info;
struct btrfs_root *root;
- struct dentry *dentry;
struct inode *inode;
struct btrfs_key key;
int index;
@@ -108,10 +107,7 @@ static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
return ERR_PTR(-ESTALE);
}
- dentry = d_obtain_alias(inode);
- if (!IS_ERR(dentry))
- d_set_d_op(dentry, &btrfs_dentry_operations);
- return dentry;
+ return d_obtain_alias(inode);
fail:
srcu_read_unlock(&fs_info->subvol_srcu, index);
return ERR_PTR(err);
@@ -166,7 +162,6 @@ static struct dentry *btrfs_fh_to_dentry(struct super_block *sb, struct fid *fh,
static struct dentry *btrfs_get_parent(struct dentry *child)
{
struct inode *dir = child->d_inode;
- struct dentry *dentry;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_path *path;
struct extent_buffer *leaf;
@@ -223,10 +218,7 @@ static struct dentry *btrfs_get_parent(struct dentry *child)
key.type = BTRFS_INODE_ITEM_KEY;
key.offset = 0;
- dentry = d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL));
- if (!IS_ERR(dentry))
- d_set_d_op(dentry, &btrfs_dentry_operations);
- return dentry;
+ return d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL));
fail:
btrfs_free_path(path);
return ERR_PTR(ret);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a0ff46a47895..a3798a3aa0d2 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4084,8 +4084,6 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
int index;
int ret;
- d_set_d_op(dentry, &btrfs_dentry_operations);
-
if (dentry->d_name.len > BTRFS_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
@@ -7117,6 +7115,10 @@ static long btrfs_fallocate(struct inode *inode, int mode,
alloc_start = offset & ~mask;
alloc_end = (offset + len + mask) & ~mask;
+ /* We only support the FALLOC_FL_KEEP_SIZE mode */
+ if (mode && (mode != FALLOC_FL_KEEP_SIZE))
+ return -EOPNOTSUPP;
+
/*
* wait for ordered IO before we have any locks. We'll loop again
* below with the locks held.
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 883c6fa1367e..22acdaa78ce1 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -460,6 +460,7 @@ static int btrfs_fill_super(struct super_block *sb,
sb->s_maxbytes = MAX_LFS_FILESIZE;
sb->s_magic = BTRFS_SUPER_MAGIC;
sb->s_op = &btrfs_super_ops;
+ sb->s_d_op = &btrfs_dentry_operations;
sb->s_export_op = &btrfs_export_ops;
sb->s_xattr = btrfs_xattr_handlers;
sb->s_time_gran = 1;