Use ecryptfs_dentry_to_lower_path in a couple of places
There are two places in ecryptfs that benefit from using
ecryptfs_dentry_to_lower_path() instead of separate calls to
ecryptfs_dentry_to_lower() and ecryptfs_dentry_to_lower_mnt(). Both
sites use fewer instructions and less stack (determined by examining
objdump output).
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index e924cf4..eb1c597 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -120,16 +120,15 @@
struct file **lower_file)
{
const struct cred *cred = current_cred();
- struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
- struct vfsmount *lower_mnt = ecryptfs_dentry_to_lower_mnt(dentry);
+ struct path *path = ecryptfs_dentry_to_lower_path(dentry);
int rc;
- rc = ecryptfs_privileged_open(lower_file, lower_dentry, lower_mnt,
+ rc = ecryptfs_privileged_open(lower_file, path->dentry, path->mnt,
cred);
if (rc) {
printk(KERN_ERR "Error opening lower file "
"for lower_dentry [0x%p] and lower_mnt [0x%p]; "
- "rc = [%d]\n", lower_dentry, lower_mnt, rc);
+ "rc = [%d]\n", path->dentry, path->mnt, rc);
(*lower_file) = NULL;
}
return rc;