diff options
| -rw-r--r-- | Documentation/filesystems/nfs/Exporting | 23 | ||||
| -rw-r--r-- | Documentation/filesystems/porting | 4 | ||||
| -rw-r--r-- | fs/9p/vfs_inode.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 2 | ||||
| -rw-r--r-- | fs/ceph/inode.c | 2 | ||||
| -rw-r--r-- | fs/cifs/readdir.c | 2 | ||||
| -rw-r--r-- | fs/fuse/dir.c | 4 | ||||
| -rw-r--r-- | fs/kernfs/dir.c | 2 | ||||
| -rw-r--r-- | fs/nfs/dir.c | 4 | ||||
| -rw-r--r-- | fs/nfs/getroot.c | 2 | ||||
| -rw-r--r-- | include/linux/dcache.h | 1 |
11 files changed, 19 insertions, 29 deletions
diff --git a/Documentation/filesystems/nfs/Exporting b/Documentation/filesystems/nfs/Exporting index c8f036a9b13f..520a4becb75c 100644 --- a/Documentation/filesystems/nfs/Exporting +++ b/Documentation/filesystems/nfs/Exporting @@ -72,24 +72,11 @@ c/ Helper routines to allocate anonymous dentries, and to help attach DCACHE_DISCONNECTED) dentry is allocated and attached. In the case of a directory, care is taken that only one dentry can ever be attached. - d_splice_alias(inode, dentry) or d_materialise_unique(dentry, inode) - will introduce a new dentry into the tree; either the passed-in - dentry or a preexisting alias for the given inode (such as an - anonymous one created by d_obtain_alias), if appropriate. The two - functions differ in their handling of directories with preexisting - aliases: - d_splice_alias will use any existing IS_ROOT dentry, but it will - return -EIO rather than try to move a dentry with a different - parent. This is appropriate for local filesystems, which - should never see such an alias unless the filesystem is - corrupted somehow (for example, if two on-disk directory - entries refer to the same directory.) - d_materialise_unique will attempt to move any dentry. This is - appropriate for distributed filesystems, where finding a - directory other than where we last cached it may be a normal - consequence of concurrent operations on other hosts. - Both functions return NULL when the passed-in dentry is used, - following the calling convention of ->lookup. + d_splice_alias(inode, dentry) will introduce a new dentry into the tree; + either the passed-in dentry or a preexisting alias for the given inode + (such as an anonymous one created by d_obtain_alias), if appropriate. + It returns NULL when the passed-in dentry is used, following the calling + convention of ->lookup. Filesystem Issues diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 0f3a1390bf00..b6b55a9cffee 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -463,3 +463,7 @@ in your dentry operations instead. of the in-tree instances did). inode_hash_lock is still held, of course, so they are still serialized wrt removal from inode hash, as well as wrt set() callback of iget5_locked(). +-- +[mandatory] + d_materialise_unique() is gone; d_splice_alias() does everything you + need now. Remember that they have opposite orders of arguments ;-/ diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 296482fc77a9..9ee5343d4884 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -832,7 +832,7 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry, * moved b under k and client parallely did a lookup for * k/b. */ - res = d_materialise_unique(dentry, inode); + res = d_splice_alias(inode, dentry); if (!res) v9fs_fid_add(dentry, fid); else if (!IS_ERR(res)) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index d23362f4464e..ff0dcc016b71 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5303,7 +5303,7 @@ static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry, return ERR_CAST(inode); } - return d_materialise_unique(dentry, inode); + return d_splice_alias(inode, dentry); } unsigned char btrfs_filetype_table[] = { diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 7a1df90c7771..90ec8e32c138 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -967,7 +967,7 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in, /* dn must be unhashed */ if (!d_unhashed(dn)) d_drop(dn); - realdn = d_materialise_unique(dn, in); + realdn = d_splice_alias(in, dn); if (IS_ERR(realdn)) { pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n", PTR_ERR(realdn), dn, in, ceph_vinop(in)); diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 8fd2a95860ba..586e3d3b204e 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -123,7 +123,7 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name, if (!inode) goto out; - alias = d_materialise_unique(dentry, inode); + alias = d_splice_alias(inode, dentry); if (alias && !IS_ERR(alias)) dput(alias); out: diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index dbab798f5caf..df562cc87763 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -372,7 +372,7 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry, if (inode && get_node_id(inode) == FUSE_ROOT_ID) goto out_iput; - newent = d_materialise_unique(entry, inode); + newent = d_splice_alias(inode, entry); err = PTR_ERR(newent); if (IS_ERR(newent)) goto out_err; @@ -1320,7 +1320,7 @@ static int fuse_direntplus_link(struct file *file, if (!inode) goto out; - alias = d_materialise_unique(dentry, inode); + alias = d_splice_alias(inode, dentry); err = PTR_ERR(alias); if (IS_ERR(alias)) goto out; diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c index 1c771931bb60..37989f02a226 100644 --- a/fs/kernfs/dir.c +++ b/fs/kernfs/dir.c @@ -807,7 +807,7 @@ static struct dentry *kernfs_iop_lookup(struct inode *dir, } /* instantiate and hash dentry */ - ret = d_materialise_unique(dentry, inode); + ret = d_splice_alias(inode, dentry); out_unlock: mutex_unlock(&kernfs_mutex); return ret; diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 06e8cfcbb670..44d7d0c7e376 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -499,7 +499,7 @@ void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry) if (IS_ERR(inode)) goto out; - alias = d_materialise_unique(dentry, inode); + alias = d_splice_alias(inode, dentry); if (IS_ERR(alias)) goto out; else if (alias) { @@ -1393,7 +1393,7 @@ struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned in nfs_advise_use_readdirplus(dir); no_entry: - res = d_materialise_unique(dentry, inode); + res = d_splice_alias(inode, dentry); if (res != NULL) { if (IS_ERR(res)) goto out_unblock_sillyrename; diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c index ebc6a0add5ae..9ac3846cb59e 100644 --- a/fs/nfs/getroot.c +++ b/fs/nfs/getroot.c @@ -51,7 +51,7 @@ static int nfs_superblock_set_dummy_root(struct super_block *sb, struct inode *i /* * Ensure that this dentry is invisible to d_find_alias(). * Otherwise, it may be spliced into the tree by - * d_materialise_unique if a parent directory from the same + * d_splice_alias if a parent directory from the same * filesystem gets mounted at a later time. * This again causes shrink_dcache_for_umount_subtree() to * Oops, since the test for IS_ROOT() will fail. diff --git a/include/linux/dcache.h b/include/linux/dcache.h index ee569da27b72..5a813988e6d4 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -230,7 +230,6 @@ extern seqlock_t rename_lock; */ extern void d_instantiate(struct dentry *, struct inode *); extern struct dentry * d_instantiate_unique(struct dentry *, struct inode *); -#define d_materialise_unique(d, i) d_splice_alias(i, d) extern int d_instantiate_no_diralias(struct dentry *, struct inode *); extern void __d_drop(struct dentry *dentry); extern void d_drop(struct dentry *dentry); |
