diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2013-10-02 17:01:18 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 07:49:06 -0800 |
| commit | 7fb3424be9050805c8282f5e2d3f35c10b6b57e1 (patch) | |
| tree | d63163f652343680a2c0ceb7a086a9259397522f /fs/stat.c | |
| parent | 3e9c394744efc5d872bce0762637e31d7f54cda6 (diff) | |
vfs: split out vfs_getattr_nosec
commit b7a6ec52dd4eced4a9bcda9ca85b3c8af84d3c90 upstream.
The filehandle lookup code wants this version of getattr.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/stat.c')
| -rw-r--r-- | fs/stat.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/fs/stat.c b/fs/stat.c index d0ea7ef75e2..ae0c3cef992 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -37,14 +37,21 @@ void generic_fillattr(struct inode *inode, struct kstat *stat) EXPORT_SYMBOL(generic_fillattr); -int vfs_getattr(struct path *path, struct kstat *stat) +/** + * vfs_getattr_nosec - getattr without security checks + * @path: file to get attributes from + * @stat: structure to return attributes in + * + * Get attributes without calling security_inode_getattr. + * + * Currently the only caller other than vfs_getattr is internal to the + * filehandle lookup code, which uses only the inode number and returns + * no attributes to any user. Any other code probably wants + * vfs_getattr. + */ +int vfs_getattr_nosec(struct path *path, struct kstat *stat) { struct inode *inode = path->dentry->d_inode; - int retval; - - retval = security_inode_getattr(path->mnt, path->dentry); - if (retval) - return retval; if (inode->i_op->getattr) return inode->i_op->getattr(path->mnt, path->dentry, stat); @@ -53,6 +60,18 @@ int vfs_getattr(struct path *path, struct kstat *stat) return 0; } +EXPORT_SYMBOL(vfs_getattr_nosec); + +int vfs_getattr(struct path *path, struct kstat *stat) +{ + int retval; + + retval = security_inode_getattr(path->mnt, path->dentry); + if (retval) + return retval; + return vfs_getattr_nosec(path, stat); +} + EXPORT_SYMBOL(vfs_getattr); int vfs_fstat(unsigned int fd, struct kstat *stat) |