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| author | Paul Mundt <lethal@linux-sh.org> | 2010-07-02 13:05:10 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-07-02 13:05:10 +0900 |
| commit | 12462d77ec78be9fb033580b7b64ddf9d0fee44b (patch) | |
| tree | a21157428d46259ed2c8a727ac12a2e658d8181a /fs/btrfs/file.c | |
| parent | 598ee698d9db7beb06e12f4ea9d9a5fbc03a3a77 (diff) | |
| parent | 97e0214044d9f279a3d6286c9f859696ef0b7ebe (diff) | |
Merge branches 'sh/highmem' and 'sh/stable-updates'
Diffstat (limited to 'fs/btrfs/file.c')
| -rw-r--r-- | fs/btrfs/file.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 787b50a16a1..e354c33df08 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1140,7 +1140,7 @@ int btrfs_sync_file(struct file *file, int datasync) /* * ok we haven't committed the transaction yet, lets do a commit */ - if (file && file->private_data) + if (file->private_data) btrfs_ioctl_trans_end(file); trans = btrfs_start_transaction(root, 0); @@ -1190,14 +1190,22 @@ static const struct vm_operations_struct btrfs_file_vm_ops = { static int btrfs_file_mmap(struct file *filp, struct vm_area_struct *vma) { - vma->vm_ops = &btrfs_file_vm_ops; + struct address_space *mapping = filp->f_mapping; + + if (!mapping->a_ops->readpage) + return -ENOEXEC; + file_accessed(filp); + vma->vm_ops = &btrfs_file_vm_ops; + vma->vm_flags |= VM_CAN_NONLINEAR; + return 0; } const struct file_operations btrfs_file_operations = { .llseek = generic_file_llseek, .read = do_sync_read, + .write = do_sync_write, .aio_read = generic_file_aio_read, .splice_read = generic_file_splice_read, .aio_write = btrfs_file_aio_write, |