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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-02-28 17:03:57 +0530 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2011-03-15 09:57:37 -0500 |
| commit | 3cf387d780944305839f5b27c51f225444ba4d27 (patch) | |
| tree | ed4ef1d723ed3c7c280aadfcf397218004e49252 /fs/9p/vfs_inode.c | |
| parent | 17311779ac3dcd06f8ef727a06969c439e116a20 (diff) | |
| download | linux-3cf387d780944305839f5b27c51f225444ba4d27.tar.gz linux-3cf387d780944305839f5b27c51f225444ba4d27.tar.bz2 linux-3cf387d780944305839f5b27c51f225444ba4d27.zip | |
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 <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs/9p/vfs_inode.c')
| -rw-r--r-- | fs/9p/vfs_inode.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 95f55011aca1..a0d65a398729 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -417,6 +417,11 @@ void v9fs_evict_inode(struct inode *inode) #ifdef CONFIG_9P_FSCACHE v9fs_cache_inode_put_cookie(inode); #endif + /* clunk the fid stashed in inode->i_private */ + if (inode->i_private) { + p9_client_clunk((struct p9_fid *)inode->i_private); + inode->i_private = NULL; + } } struct inode * @@ -578,7 +583,7 @@ v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode, u32 perm; int flags; struct v9fs_session_info *v9ses; - struct p9_fid *fid; + struct p9_fid *fid, *inode_fid; struct file *filp; err = 0; @@ -601,6 +606,21 @@ v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode, /* if we are opening a file, assign the open fid to the file */ if (nd && nd->flags & LOOKUP_OPEN) { + if (v9ses->cache && !dentry->d_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. + */ + inode_fid = v9fs_writeback_fid(dentry); + if (IS_ERR(inode_fid)) { + err = PTR_ERR(inode_fid); + goto error; + } + dentry->d_inode->i_private = (void *) inode_fid; + } filp = lookup_instantiate_filp(nd, dentry, generic_file_open); if (IS_ERR(filp)) { err = PTR_ERR(filp); |