diff options
| author | Miklos Szeredi <mszeredi@suse.cz> | 2010-08-10 11:41:36 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-08-11 00:28:20 -0400 |
| commit | f7ad3c6be90809b53b7f0ae9d4eaa45ce2564a79 (patch) | |
| tree | dc9b09188bab35320200f318b5e7b52f24dc43ad /fs/namei.c | |
| parent | 542ce7a9bc6b3838832ae0f4f8de30c667af8ff3 (diff) | |
| download | lwn-f7ad3c6be90809b53b7f0ae9d4eaa45ce2564a79.tar.gz lwn-f7ad3c6be90809b53b7f0ae9d4eaa45ce2564a79.zip | |
vfs: add helpers to get root and pwd
Add three helpers that retrieve a refcounted copy of the root and cwd
from the supplied fs_struct.
get_fs_root()
get_fs_pwd()
get_fs_root_and_pwd()
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/fs/namei.c b/fs/namei.c index 13ff4abdbdca..17ea76bf2fbe 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -483,13 +483,8 @@ ok: static __always_inline void set_root(struct nameidata *nd) { - if (!nd->root.mnt) { - struct fs_struct *fs = current->fs; - read_lock(&fs->lock); - nd->root = fs->root; - path_get(&nd->root); - read_unlock(&fs->lock); - } + if (!nd->root.mnt) + get_fs_root(current->fs, &nd->root); } static int link_path_walk(const char *, struct nameidata *); @@ -1015,11 +1010,7 @@ static int path_init(int dfd, const char *name, unsigned int flags, struct namei nd->path = nd->root; path_get(&nd->root); } else if (dfd == AT_FDCWD) { - struct fs_struct *fs = current->fs; - read_lock(&fs->lock); - nd->path = fs->pwd; - path_get(&fs->pwd); - read_unlock(&fs->lock); + get_fs_pwd(current->fs, &nd->path); } else { struct dentry *dentry; |