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| author | Miklos Szeredi <mszeredi@suse.cz> | 2010-08-10 11:41:36 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-08-11 06:28:20 +0200 |
| commit | f7ad3c6be90809b53b7f0ae9d4eaa45ce2564a79 (patch) | |
| tree | dc9b09188bab35320200f318b5e7b52f24dc43ad /fs/namespace.c | |
| parent | cachefiles: use path_get instead of lone dget (diff) | |
| download | linux-f7ad3c6be90809b53b7f0ae9d4eaa45ce2564a79.tar.xz linux-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/namespace.c')
| -rw-r--r-- | fs/namespace.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 66c4f7e781cb..7972e51ccc06 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -2213,10 +2213,7 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root, goto out1; } - read_lock(¤t->fs->lock); - root = current->fs->root; - path_get(¤t->fs->root); - read_unlock(¤t->fs->lock); + get_fs_root(current->fs, &root); down_write(&namespace_sem); mutex_lock(&old.dentry->d_inode->i_mutex); error = -EINVAL; |