From 3cf387d780944305839f5b27c51f225444ba4d27 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Mon, 28 Feb 2011 17:03:57 +0530 Subject: fs/9p: Add fid to inode in cached mode The fid attached to inode will be opened O_RDWR mode and is used for dirty page writeback only. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Venkateswararao Jujjuri Signed-off-by: Eric Van Hensbergen --- fs/9p/vfs_file.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'fs/9p/vfs_file.c') diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 6e1e8f43eda..e966f15f92e 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -86,11 +86,30 @@ int v9fs_file_open(struct inode *inode, struct file *file) } file->private_data = fid; + if (v9ses->cache && !inode->i_private) { + /* + * clone a fid and add it to inode->i_private + * we do it during open time instead of + * page dirty time via write_begin/page_mkwrite + * because we want write after unlink usecase + * to work. + */ + fid = v9fs_writeback_fid(file->f_path.dentry); + if (IS_ERR(fid)) { + err = PTR_ERR(fid); + goto out_error; + } + inode->i_private = (void *) fid; + } #ifdef CONFIG_9P_FSCACHE if (v9ses->cache) v9fs_cache_inode_set_cookie(inode, file); #endif return 0; +out_error: + p9_client_clunk(file->private_data); + file->private_data = NULL; + return err; } /** -- cgit v1.2.3-18-g5258