diff options
Diffstat (limited to 'fs/efs')
| -rw-r--r-- | fs/efs/namei.c | 32 | ||||
| -rw-r--r-- | fs/efs/super.c | 6 |
2 files changed, 36 insertions, 2 deletions
diff --git a/fs/efs/namei.c b/fs/efs/namei.c index ed4a207fe22a..5276b19423c1 100644 --- a/fs/efs/namei.c +++ b/fs/efs/namei.c @@ -75,6 +75,38 @@ struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct namei return NULL; } +struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp) +{ + __u32 *objp = vobjp; + unsigned long ino = objp[0]; + __u32 generation = objp[1]; + struct inode *inode; + struct dentry *result; + + if (ino == 0) + return ERR_PTR(-ESTALE); + inode = iget(sb, ino); + if (inode == NULL) + return ERR_PTR(-ENOMEM); + + if (is_bad_inode(inode) || + (generation && inode->i_generation != generation)) { + result = ERR_PTR(-ESTALE); + goto out_iput; + } + + result = d_alloc_anon(inode); + if (!result) { + result = ERR_PTR(-ENOMEM); + goto out_iput; + } + return result; + + out_iput: + iput(inode); + return result; +} + struct dentry *efs_get_parent(struct dentry *child) { struct dentry *parent; diff --git a/fs/efs/super.c b/fs/efs/super.c index e0a6839e68ae..ce4acb8ff819 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -11,6 +11,7 @@ #include <linux/efs_fs.h> #include <linux/efs_vh.h> #include <linux/efs_fs_sb.h> +#include <linux/exportfs.h> #include <linux/slab.h> #include <linux/buffer_head.h> #include <linux/vfs.h> @@ -74,13 +75,13 @@ static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flag inode_init_once(&ei->vfs_inode); } - + static int init_inodecache(void) { efs_inode_cachep = kmem_cache_create("efs_inode_cache", sizeof(struct efs_inode_info), 0, SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD, - init_once, NULL); + init_once); if (efs_inode_cachep == NULL) return -ENOMEM; return 0; @@ -113,6 +114,7 @@ static const struct super_operations efs_superblock_operations = { }; static struct export_operations efs_export_ops = { + .get_dentry = efs_get_dentry, .get_parent = efs_get_parent, }; |