Merge "roots: Fix an issue with volume_for_path()."
diff --git a/install.cpp b/install.cpp
index 507161c..74d1a68 100644
--- a/install.cpp
+++ b/install.cpp
@@ -653,7 +653,7 @@
   std::chrono::duration<double> duration = std::chrono::system_clock::now() - start;
   int time_total = static_cast<int>(duration.count());
 
-  bool has_cache = volume_for_path("/cache") != nullptr;
+  bool has_cache = volume_for_mount_point("/cache") != nullptr;
   // Skip logging the uncrypt_status on devices without /cache.
   if (has_cache) {
     static constexpr const char* UNCRYPT_STATUS = "/cache/recovery/uncrypt_status";
diff --git a/recovery.cpp b/recovery.cpp
index 076b449..4dc5b54 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -1396,7 +1396,7 @@
     printf("Starting recovery (pid %d) on %s", getpid(), ctime(&start));
 
     load_volume_table();
-    has_cache = volume_for_path(CACHE_ROOT) != nullptr;
+    has_cache = volume_for_mount_point(CACHE_ROOT) != nullptr;
 
     std::vector<std::string> args = get_args(argc, argv);
     std::vector<char*> args_to_parse(args.size());
diff --git a/roots.cpp b/roots.cpp
index 02c1ecb..c0348d7 100644
--- a/roots.cpp
+++ b/roots.cpp
@@ -69,11 +69,15 @@
   printf("\n");
 }
 
+Volume* volume_for_mount_point(const std::string& mount_point) {
+  return fs_mgr_get_entry_for_mount_point(fstab, mount_point);
+}
+
 // Finds the volume specified by the given path. fs_mgr_get_entry_for_mount_point() does exact match
 // only, so it attempts the prefixes recursively (e.g. "/cache/recovery/last_log",
 // "/cache/recovery", "/cache", "/" for a given path of "/cache/recovery/last_log") and returns the
 // first match or nullptr.
-Volume* volume_for_path(const char* path) {
+static Volume* volume_for_path(const char* path) {
   if (path == nullptr || path[0] == '\0') return nullptr;
   std::string str(path);
   while (true) {
diff --git a/roots.h b/roots.h
index 542f03b..46bb77e 100644
--- a/roots.h
+++ b/roots.h
@@ -17,13 +17,15 @@
 #ifndef RECOVERY_ROOTS_H_
 #define RECOVERY_ROOTS_H_
 
+#include <string>
+
 typedef struct fstab_rec Volume;
 
 // Load and parse volume data from /etc/recovery.fstab.
 void load_volume_table();
 
-// Return the Volume* record for this path (or NULL).
-Volume* volume_for_path(const char* path);
+// Return the Volume* record for this mount point (or nullptr).
+Volume* volume_for_mount_point(const std::string& mount_point);
 
 // Make sure that the volume 'path' is on is mounted.  Returns 0 on
 // success (volume is mounted).