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| author | Imran Khan <imran.f.khan@oracle.com> | 2022-06-15 05:10:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-27 17:46:15 +0300 |
| commit | b8f35fa1188b84035c59d4842826c4e93a1b1c9f (patch) | |
| tree | 3c7277dc358aeed06e9e1a5c217e7746a09f46ce /include/linux/kernfs.h | |
| parent | 086c00c71fc8d47db6983f419a45f9ee167de03f (diff) | |
| download | linux-b8f35fa1188b84035c59d4842826c4e93a1b1c9f.tar.xz | |
kernfs: Change kernfs_notify_list to llist.
At present kernfs_notify_list is implemented as a singly linked
list of kernfs_node(s), where last element points to itself and
value of ->attr.next tells if node is present on the list or not.
Both addition and deletion to list happen under kernfs_notify_lock.
Change kernfs_notify_list to llist so that addition to list can heppen
locklessly.
Suggested by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Imran Khan <imran.f.khan@oracle.com>
Link: https://lore.kernel.org/r/20220615021059.862643-3-imran.f.khan@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/kernfs.h')
| -rw-r--r-- | include/linux/kernfs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index 13f54f078a52..2dd9c8df0f4f 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -116,7 +116,7 @@ struct kernfs_elem_attr { const struct kernfs_ops *ops; struct kernfs_open_node __rcu *open; loff_t size; - struct kernfs_node *notify_next; /* for kernfs_notify() */ + struct llist_node notify_next; /* for kernfs_notify() */ }; /* |