Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5dd784d04924be5d8bc066aded0ec3274b20e612
Commit: 5dd784d04924be5d8bc066aded0ec3274b20e612
Parent: 09da5916baf6d3fb9ac16c125c801ae6ea151f97
Author: Jan Blunck <[EMAIL PROTECTED]>
AuthorDate: Thu Feb 14 19:34:38 2008 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Thu Feb 14 21:13:33 2008 -0800
Introduce path_get()
This introduces the symmetric function to path_put() for getting a reference
to the dentry and vfsmount of a struct path in the right order.
Signed-off-by: Jan Blunck <[EMAIL PROTECTED]>
Signed-off-by: Andreas Gruenbacher <[EMAIL PROTECTED]>
Acked-by: Christoph Hellwig <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
fs/namei.c | 17 +++++++++++++++--
include/linux/path.h | 1 +
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/fs/namei.c b/fs/namei.c
index 0249935..a6575ca 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -363,6 +363,19 @@ int deny_write_access(struct file * file)
}
/**
+ * path_get - get a reference to a path
+ * @path: path to get the reference to
+ *
+ * Given a path increment the reference count to the dentry and the vfsmount.
+ */
+void path_get(struct path *path)
+{
+ mntget(path->mnt);
+ dget(path->dentry);
+}
+EXPORT_SYMBOL(path_get);
+
+/**
* path_put - put a reference to a path
* @path: path to put the reference to
*
@@ -1160,8 +1173,8 @@ static int do_path_lookup(int dfd, const char *name,
if (retval)
goto fput_fail;
- nd->path.mnt = mntget(file->f_path.mnt);
- nd->path.dentry = dget(dentry);
+ nd->path = file->f_path;
+ path_get(&file->f_path);
fput_light(file, fput_needed);
}
diff --git a/include/linux/path.h b/include/linux/path.h
index 4d976f9..915e0c3 100644
--- a/include/linux/path.h
+++ b/include/linux/path.h
@@ -9,6 +9,7 @@ struct path {
struct dentry *dentry;
};
+extern void path_get(struct path *);
extern void path_put(struct path *);
#endif /* _LINUX_PATH_H */
-
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