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| author | Miklos Szeredi <mszeredi@redhat.com> | 2016-10-04 14:40:44 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2016-10-14 11:16:46 +0200 |
| commit | 78a3fa4f3249055b472983065b30c02392cf7e2a (patch) | |
| tree | 3a63686b48a69da9ae623c39047e76f9f523466a | |
| parent | cb348edb6bef7250d1d0f8f2d7dac152d8b52626 (diff) | |
| download | mmc-78a3fa4f3249055b472983065b30c02392cf7e2a.tar.gz | |
ovl: use generic_readlink
All filesystems that are backers for overlayfs would also use
generic_readlink(). Move this logic to the overlay itself, which is a nice
cleanup.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
| -rw-r--r-- | fs/overlayfs/inode.c | 21 |
1 files changed, 1 insertions, 20 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index ce5d7dfaf76937..50dc214c44f2d2 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -176,25 +176,6 @@ static const char *ovl_get_link(struct dentry *dentry, return p; } -static int ovl_readlink(struct dentry *dentry, char __user *buf, int bufsiz) -{ - struct path realpath; - struct inode *realinode; - const struct cred *old_cred; - int err; - - ovl_path_real(dentry, &realpath); - realinode = realpath.dentry->d_inode; - - if (!realinode->i_op->readlink) - return -EINVAL; - - old_cred = ovl_override_creds(dentry->d_sb); - err = realinode->i_op->readlink(realpath.dentry, buf, bufsiz); - revert_creds(old_cred); - return err; -} - bool ovl_is_private_xattr(const char *name) { return strncmp(name, OVL_XATTR_PREFIX, @@ -381,7 +362,7 @@ static const struct inode_operations ovl_file_inode_operations = { static const struct inode_operations ovl_symlink_inode_operations = { .setattr = ovl_setattr, .get_link = ovl_get_link, - .readlink = ovl_readlink, + .readlink = generic_readlink, .getattr = ovl_getattr, .setxattr = generic_setxattr, .getxattr = generic_getxattr, |