diff options
Diffstat (limited to 'fs/9p/vfs_file.c')
| -rw-r--r-- | fs/9p/vfs_file.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 6c78343cf690..653dfa5b2531 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -79,6 +79,13 @@ int v9fs_file_open(struct inode *inode, struct file *file) vfid->filp = file; kfree(fcall); + if((vfid->qid.version) && (v9ses->cache)) { + dprintk(DEBUG_VFS, "cached"); + /* enable cached file options */ + if(file->f_op == &v9fs_file_operations) + file->f_op = &v9fs_cached_file_operations; + } + return 0; Clunk_Fid: @@ -238,6 +245,17 @@ v9fs_file_write(struct file *filp, const char __user * data, return total; } +const struct file_operations v9fs_cached_file_operations = { + .llseek = generic_file_llseek, + .read = do_sync_read, + .aio_read = generic_file_aio_read, + .write = v9fs_file_write, + .open = v9fs_file_open, + .release = v9fs_dir_release, + .lock = v9fs_file_lock, + .mmap = generic_file_mmap, +}; + const struct file_operations v9fs_file_operations = { .llseek = generic_file_llseek, .read = v9fs_file_read, |