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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-14 11:42:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-14 11:42:26 -0700
commit41d9884c44237cd66e2bdbc412028b29196b344c (patch)
tree7a386f6de2f07c01f87f3a16965c9bb8b40f63c1 /include
parent63345b4794aef4ebe16502cfe35b02bc9822d763 (diff)
parentdae3794fd603b92dcbac2859fe0bc7fe129a5188 (diff)
downloadlinux-linaro-stable-41d9884c44237cd66e2bdbc412028b29196b344c.tar.gz
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 'include')
-rw-r--r--include/linux/fs.h2
-rw-r--r--include/linux/llist.h19
-rw-r--r--include/linux/sunrpc/rpc_pipe_fs.h4
-rw-r--r--include/uapi/asm-generic/fcntl.h8
4 files changed, 14 insertions, 19 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a35b10e9a680..981874773e85 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -10,6 +10,7 @@
#include <linux/stat.h>
#include <linux/cache.h>
#include <linux/list.h>
+#include <linux/llist.h>
#include <linux/radix-tree.h>
#include <linux/rbtree.h>
#include <linux/init.h>
@@ -768,6 +769,7 @@ struct file {
*/
union {
struct list_head fu_list;
+ struct llist_node fu_llist;
struct rcu_head fu_rcuhead;
} f_u;
struct path f_path;
diff --git a/include/linux/llist.h b/include/linux/llist.h
index a5199f6d0e82..cdaa7f023899 100644
--- a/include/linux/llist.h
+++ b/include/linux/llist.h
@@ -142,6 +142,9 @@ static inline struct llist_node *llist_next(struct llist_node *node)
return node->next;
}
+extern bool llist_add_batch(struct llist_node *new_first,
+ struct llist_node *new_last,
+ struct llist_head *head);
/**
* llist_add - add a new entry
* @new: new entry to be added
@@ -151,18 +154,7 @@ static inline struct llist_node *llist_next(struct llist_node *node)
*/
static inline bool llist_add(struct llist_node *new, struct llist_head *head)
{
- struct llist_node *entry, *old_entry;
-
- entry = head->first;
- for (;;) {
- old_entry = entry;
- new->next = entry;
- entry = cmpxchg(&head->first, old_entry, new);
- if (entry == old_entry)
- break;
- }
-
- return old_entry == NULL;
+ return llist_add_batch(new, new, head);
}
/**
@@ -178,9 +170,6 @@ static inline struct llist_node *llist_del_all(struct llist_head *head)
return xchg(&head->first, NULL);
}
-extern bool llist_add_batch(struct llist_node *new_first,
- struct llist_node *new_last,
- struct llist_head *head);
extern struct llist_node *llist_del_first(struct llist_head *head);
#endif /* LLIST_H */
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index a7b422b33eda..aa5b582cc471 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -73,12 +73,12 @@ extern ssize_t rpc_pipe_generic_upcall(struct file *, struct rpc_pipe_msg *,
extern int rpc_queue_upcall(struct rpc_pipe *, struct rpc_pipe_msg *);
struct rpc_clnt;
-extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
+extern struct dentry *rpc_create_client_dir(struct dentry *, const char *, struct rpc_clnt *);
extern int rpc_remove_client_dir(struct dentry *);
struct cache_detail;
extern struct dentry *rpc_create_cache_dir(struct dentry *,
- struct qstr *,
+ const char *,
umode_t umode,
struct cache_detail *);
extern void rpc_remove_cache_dir(struct dentry *);
diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h
index 06632beaa6d5..05ac354e124d 100644
--- a/include/uapi/asm-generic/fcntl.h
+++ b/include/uapi/asm-generic/fcntl.h
@@ -84,10 +84,14 @@
#define O_PATH 010000000
#endif
-#ifndef O_TMPFILE
-#define O_TMPFILE 020000000
+#ifndef __O_TMPFILE
+#define __O_TMPFILE 020000000
#endif
+/* a horrid kludge trying to make sure that this will fail on old kernels */
+#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY | O_RDWR)
+#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT | O_ACCMODE)
+
#ifndef O_NDELAY
#define O_NDELAY O_NONBLOCK
#endif