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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/dcache.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/dcache.c')
| -rw-r--r-- | fs/dcache.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 9f2c13417969..995d08069d26 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2014,10 +2014,7 @@ char *d_path(const struct path *path, char *buf, int buflen) if (path->dentry->d_op && path->dentry->d_op->d_dname) return path->dentry->d_op->d_dname(path->dentry, buf, buflen); - read_lock(¤t->fs->lock); - root = current->fs->root; - path_get(&root); - read_unlock(¤t->fs->lock); + get_fs_root(current->fs, &root); spin_lock(&dcache_lock); tmp = root; res = __d_path(path, &tmp, buf, buflen); @@ -2129,12 +2126,7 @@ SYSCALL_DEFINE2(getcwd, char __user *, buf, unsigned long, size) if (!page) return -ENOMEM; - read_lock(¤t->fs->lock); - pwd = current->fs->pwd; - path_get(&pwd); - root = current->fs->root; - path_get(&root); - read_unlock(¤t->fs->lock); + get_fs_root_and_pwd(current->fs, &root, &pwd); error = -ENOENT; spin_lock(&dcache_lock); |