summaryrefslogtreecommitdiffstats
path: root/fs/9p/vfs_inode_dotl.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/9p/vfs_inode_dotl.c')
-rw-r--r--fs/9p/vfs_inode_dotl.c71
1 files changed, 58 insertions, 13 deletions
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 691c78f..276f4a6 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -86,18 +86,63 @@ static struct dentry *v9fs_dentry_from_dir_inode(struct inode *inode)
return dentry;
}
+static int v9fs_test_inode_dotl(struct inode *inode, void *data)
+{
+ struct v9fs_inode *v9inode = V9FS_I(inode);
+ struct p9_stat_dotl *st = (struct p9_stat_dotl *)data;
+
+ /* don't match inode of different type */
+ if ((inode->i_mode & S_IFMT) != (st->st_mode & S_IFMT))
+ return 0;
+
+ if (inode->i_generation != st->st_gen)
+ return 0;
+
+ /* compare qid details */
+ if (memcmp(&v9inode->qid.version,
+ &st->qid.version, sizeof(v9inode->qid.version)))
+ return 0;
+
+ if (v9inode->qid.type != st->qid.type)
+ return 0;
+ return 1;
+}
+
+/* Always get a new inode */
+static int v9fs_test_new_inode_dotl(struct inode *inode, void *data)
+{
+ return 0;
+}
+
+static int v9fs_set_inode_dotl(struct inode *inode, void *data)
+{
+ struct v9fs_inode *v9inode = V9FS_I(inode);
+ struct p9_stat_dotl *st = (struct p9_stat_dotl *)data;
+
+ memcpy(&v9inode->qid, &st->qid, sizeof(st->qid));
+ inode->i_generation = st->st_gen;
+ return 0;
+}
+
static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
struct p9_qid *qid,
struct p9_fid *fid,
- struct p9_stat_dotl *st)
+ struct p9_stat_dotl *st,
+ int new)
{
int retval;
unsigned long i_ino;
struct inode *inode;
struct v9fs_session_info *v9ses = sb->s_fs_info;
+ int (*test)(struct inode *, void *);
+
+ if (new)
+ test = v9fs_test_new_inode_dotl;
+ else
+ test = v9fs_test_inode_dotl;
i_ino = v9fs_qid2ino(qid);
- inode = iget_locked(sb, i_ino);
+ inode = iget5_locked(sb, i_ino, test, v9fs_set_inode_dotl, st);
if (!inode)
return ERR_PTR(-ENOMEM);
if (!(inode->i_state & I_NEW))
@@ -107,13 +152,13 @@ static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
* FIXME!! we may need support for stale inodes
* later.
*/
+ inode->i_ino = i_ino;
retval = v9fs_init_inode(v9ses, inode, st->st_mode);
if (retval)
goto error;
v9fs_stat2inode_dotl(st, inode);
#ifdef CONFIG_9P_FSCACHE
- v9fs_fscache_set_key(inode, &st->qid);
v9fs_cache_inode_get_cookie(inode);
#endif
retval = v9fs_get_acl(inode, fid);
@@ -131,16 +176,16 @@ error:
struct inode *
v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid,
- struct super_block *sb)
+ struct super_block *sb, int new)
{
struct p9_stat_dotl *st;
struct inode *inode = NULL;
- st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
+ st = p9_client_getattr_dotl(fid, P9_STATS_BASIC | P9_STATS_GEN);
if (IS_ERR(st))
return ERR_CAST(st);
- inode = v9fs_qid_iget_dotl(sb, &st->qid, fid, st);
+ inode = v9fs_qid_iget_dotl(sb, &st->qid, fid, st, new);
kfree(st);
return inode;
}
@@ -173,8 +218,8 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
struct posix_acl *pacl = NULL, *dacl = NULL;
v9ses = v9fs_inode2v9ses(dir);
- if (nd && nd->flags & LOOKUP_OPEN)
- flags = nd->intent.open.flags - 1;
+ if (nd)
+ flags = nd->intent.open.flags;
else {
/*
* create call without LOOKUP_OPEN is due
@@ -230,7 +275,7 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
fid = NULL;
goto error;
}
- inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_get_new_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);
@@ -350,7 +395,7 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
goto error;
}
- inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_get_new_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",
@@ -547,7 +592,7 @@ v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
inode->i_blocks = stat->st_blocks;
}
if (stat->st_result_mask & P9_STATS_GEN)
- inode->i_generation = stat->st_gen;
+ inode->i_generation = stat->st_gen;
/* Currently we don't support P9_STATS_BTIME and P9_STATS_DATA_VERSION
* because the inode structure does not have fields for them.
@@ -603,7 +648,7 @@ v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
}
/* instantiate inode and assign the unopened fid to dentry */
- inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_get_new_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",
@@ -756,7 +801,7 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode,
goto error;
}
- inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_get_new_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",
OpenPOWER on IntegriCloud