diff options
Diffstat (limited to 'fs/9p/vfs_dentry.c')
| -rw-r--r-- | fs/9p/vfs_dentry.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c index a4ae4be5ab5..b6a3b9f7fe4 100644 --- a/fs/9p/vfs_dentry.c +++ b/fs/9p/vfs_dentry.c @@ -100,7 +100,41 @@ static void v9fs_dentry_release(struct dentry *dentry) } } +static int v9fs_lookup_revalidate(struct dentry *dentry, struct nameidata *nd) +{ + struct p9_fid *fid; + struct inode *inode; + struct v9fs_inode *v9inode; + + if (nd->flags & LOOKUP_RCU) + return -ECHILD; + + inode = dentry->d_inode; + if (!inode) + goto out_valid; + + v9inode = V9FS_I(inode); + if (v9inode->cache_validity & V9FS_INO_INVALID_ATTR) { + int retval; + struct v9fs_session_info *v9ses; + fid = v9fs_fid_lookup(dentry); + if (IS_ERR(fid)) + return PTR_ERR(fid); + + v9ses = v9fs_inode2v9ses(inode); + if (v9fs_proto_dotl(v9ses)) + retval = v9fs_refresh_inode_dotl(fid, inode); + else + retval = v9fs_refresh_inode(fid, inode); + if (retval <= 0) + return retval; + } +out_valid: + return 1; +} + const struct dentry_operations v9fs_cached_dentry_operations = { + .d_revalidate = v9fs_lookup_revalidate, .d_delete = v9fs_cached_dentry_delete, .d_release = v9fs_dentry_release, }; |