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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-14 20:42:26 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-14 20:42:26 +0200
commit41d9884c44237cd66e2bdbc412028b29196b344c (patch)
tree7a386f6de2f07c01f87f3a16965c9bb8b40f63c1 /net/sunrpc/rpc_pipe.c
parentMerge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86 (diff)
parentsunrpc: now we can just set ->s_d_op (diff)
downloadlinux-41d9884c44237cd66e2bdbc412028b29196b344c.tar.xz
linux-41d9884c44237cd66e2bdbc412028b29196b344c.zip
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs stuff from Al Viro: "O_TMPFILE ABI changes, Oleg's fput() series, misc cleanups, including making simple_lookup() usable for filesystems with non-NULL s_d_op, which allows us to get rid of quite a bit of ugliness" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: sunrpc: now we can just set ->s_d_op cgroup: we can use simple_lookup() now efivarfs: we can use simple_lookup() now make simple_lookup() usable for filesystems that set ->s_d_op configfs: don't open-code d_alloc_name() __rpc_lookup_create_exclusive: pass string instead of qstr rpc_create_*_dir: don't bother with qstr llist: llist_add() can use llist_add_batch() llist: fix/simplify llist_add() and llist_add_batch() fput: turn "list_head delayed_fput_list" into llist_head fs/file_table.c:fput(): add comment Safer ABI for O_TMPFILE
Diffstat (limited to 'net/sunrpc/rpc_pipe.c')
-rw-r--r--net/sunrpc/rpc_pipe.c40
1 files changed, 13 insertions, 27 deletions
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 61239a2cb786..406859cc68aa 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -673,13 +673,12 @@ static int __rpc_rmpipe(struct inode *dir, struct dentry *dentry)
}
static struct dentry *__rpc_lookup_create_exclusive(struct dentry *parent,
- struct qstr *name)
+ const char *name)
{
- struct dentry *dentry;
-
- dentry = d_lookup(parent, name);
+ struct qstr q = QSTR_INIT(name, strlen(name));
+ struct dentry *dentry = d_hash_and_lookup(parent, &q);
if (!dentry) {
- dentry = d_alloc(parent, name);
+ dentry = d_alloc(parent, &q);
if (!dentry)
return ERR_PTR(-ENOMEM);
}
@@ -704,8 +703,7 @@ static void __rpc_depopulate(struct dentry *parent,
for (i = start; i < eof; i++) {
name.name = files[i].name;
name.len = strlen(files[i].name);
- name.hash = full_name_hash(name.name, name.len);
- dentry = d_lookup(parent, &name);
+ dentry = d_hash_and_lookup(parent, &name);
if (dentry == NULL)
continue;
@@ -747,12 +745,7 @@ static int rpc_populate(struct dentry *parent,
mutex_lock(&dir->i_mutex);
for (i = start; i < eof; i++) {
- struct qstr q;
-
- q.name = files[i].name;
- q.len = strlen(files[i].name);
- q.hash = full_name_hash(q.name, q.len);
- dentry = __rpc_lookup_create_exclusive(parent, &q);
+ dentry = __rpc_lookup_create_exclusive(parent, files[i].name);
err = PTR_ERR(dentry);
if (IS_ERR(dentry))
goto out_bad;
@@ -785,7 +778,7 @@ out_bad:
}
static struct dentry *rpc_mkdir_populate(struct dentry *parent,
- struct qstr *name, umode_t mode, void *private,
+ const char *name, umode_t mode, void *private,
int (*populate)(struct dentry *, void *), void *args_populate)
{
struct dentry *dentry;
@@ -856,7 +849,6 @@ struct dentry *rpc_mkpipe_dentry(struct dentry *parent, const char *name,
struct dentry *dentry;
struct inode *dir = parent->d_inode;
umode_t umode = S_IFIFO | S_IRUSR | S_IWUSR;
- struct qstr q;
int err;
if (pipe->ops->upcall == NULL)
@@ -864,12 +856,8 @@ struct dentry *rpc_mkpipe_dentry(struct dentry *parent, const char *name,
if (pipe->ops->downcall == NULL)
umode &= ~S_IWUGO;
- q.name = name;
- q.len = strlen(name);
- q.hash = full_name_hash(q.name, q.len),
-
mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
- dentry = __rpc_lookup_create_exclusive(parent, &q);
+ dentry = __rpc_lookup_create_exclusive(parent, name);
if (IS_ERR(dentry))
goto out;
err = __rpc_mkpipe_dentry(dir, dentry, umode, &rpc_pipe_fops,
@@ -940,8 +928,8 @@ static void rpc_clntdir_depopulate(struct dentry *dentry)
/**
* rpc_create_client_dir - Create a new rpc_client directory in rpc_pipefs
- * @dentry: dentry from the rpc_pipefs root to the new directory
- * @name: &struct qstr for the name
+ * @dentry: the parent of new directory
+ * @name: the name of new directory
* @rpc_client: rpc client to associate with this directory
*
* This creates a directory at the given @path associated with
@@ -950,7 +938,7 @@ static void rpc_clntdir_depopulate(struct dentry *dentry)
* later be created using rpc_mkpipe().
*/
struct dentry *rpc_create_client_dir(struct dentry *dentry,
- struct qstr *name,
+ const char *name,
struct rpc_clnt *rpc_client)
{
return rpc_mkdir_populate(dentry, name, S_IRUGO | S_IXUGO, NULL,
@@ -996,7 +984,7 @@ static void rpc_cachedir_depopulate(struct dentry *dentry)
rpc_depopulate(dentry, cache_pipefs_files, 0, 3);
}
-struct dentry *rpc_create_cache_dir(struct dentry *parent, struct qstr *name,
+struct dentry *rpc_create_cache_dir(struct dentry *parent, const char *name,
umode_t umode, struct cache_detail *cd)
{
return rpc_mkdir_populate(parent, name, umode, NULL,
@@ -1076,9 +1064,7 @@ struct dentry *rpc_d_lookup_sb(const struct super_block *sb,
const unsigned char *dir_name)
{
struct qstr dir = QSTR_INIT(dir_name, strlen(dir_name));
-
- dir.hash = full_name_hash(dir.name, dir.len);
- return d_lookup(sb->s_root, &dir);
+ return d_hash_and_lookup(sb->s_root, &dir);
}
EXPORT_SYMBOL_GPL(rpc_d_lookup_sb);