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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-02-28 17:04:02 +0530
committerEric Van Hensbergen <ericvh@gmail.com>2011-03-15 09:57:39 -0500
commita78ce05d5d342297b66122eda8add4eefa21f8a8 (patch)
tree84b9b4009ba0279ffbbc79382bbdbc6f168f23d8 /fs/9p/vfs_inode.c
parenta12119087bd803d3fa0b067ee18497e2e5d064cd (diff)
fs/9p: Add v9fs_inode
Switch to the fscache code to v9fs_inode. We will later use v9fs_inode in cache=loose mode to track the inode cache validity timeout. Ie if we find an inode in cache older that a specific jiffie range we will consider it stale 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.c36
1 files changed, 16 insertions, 20 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 304904b4061..411c70a88b3 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -203,26 +203,23 @@ v9fs_blank_wstat(struct p9_wstat *wstat)
wstat->extension = NULL;
}
-#ifdef CONFIG_9P_FSCACHE
/**
* v9fs_alloc_inode - helper function to allocate an inode
- * This callback is executed before setting up the inode so that we
- * can associate a vcookie with each inode.
*
*/
-
struct inode *v9fs_alloc_inode(struct super_block *sb)
{
- struct v9fs_cookie *vcookie;
- vcookie = (struct v9fs_cookie *)kmem_cache_alloc(vcookie_cache,
- GFP_KERNEL);
- if (!vcookie)
+ struct v9fs_inode *v9inode;
+ v9inode = (struct v9fs_inode *)kmem_cache_alloc(v9fs_inode_cache,
+ GFP_KERNEL);
+ if (!v9inode)
return NULL;
-
- vcookie->fscache = NULL;
- vcookie->qid = NULL;
- spin_lock_init(&vcookie->lock);
- return &vcookie->inode;
+#ifdef CONFIG_9P_FSCACHE
+ v9inode->fscache = NULL;
+ v9inode->fscache_key = NULL;
+ spin_lock_init(&v9inode->fscache_lock);
+#endif
+ return &v9inode->vfs_inode;
}
/**
@@ -234,14 +231,13 @@ static void v9fs_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
INIT_LIST_HEAD(&inode->i_dentry);
- kmem_cache_free(vcookie_cache, v9fs_inode2cookie(inode));
+ kmem_cache_free(v9fs_inode_cache, V9FS_I(inode));
}
void v9fs_destroy_inode(struct inode *inode)
{
call_rcu(&inode->i_rcu, v9fs_i_callback);
}
-#endif
int v9fs_init_inode(struct v9fs_session_info *v9ses,
struct inode *inode, int mode)
@@ -459,7 +455,7 @@ static struct inode *v9fs_qid_iget(struct super_block *sb,
v9fs_stat2inode(st, inode, sb);
#ifdef CONFIG_9P_FSCACHE
- v9fs_vcookie_set_qid(ret, &st->qid);
+ v9fs_fscache_set_key(inode, &st->qid);
v9fs_cache_inode_get_cookie(inode);
#endif
unlock_new_inode(inode);
@@ -472,8 +468,8 @@ error:
}
struct inode *
-v9fs_inode(struct v9fs_session_info *v9ses, struct p9_fid *fid,
- struct super_block *sb)
+v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+ struct super_block *sb)
{
struct p9_wstat *st;
struct inode *inode = NULL;
@@ -572,7 +568,7 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
}
/* instantiate inode and assign the unopened fid to the dentry */
- inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
@@ -747,7 +743,7 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
return ERR_PTR(result);
}
- inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
if (IS_ERR(inode)) {
result = PTR_ERR(inode);
inode = NULL;