From bd183f89a989f03572621a0c4a281f46ec0aa9c2 Mon Sep 17 00:00:00 2001
From: corinna <corinna>
Date: Fri, 9 Apr 2004 19:33:07 +0000
Subject: [PATCH] 	* path.cc (fsinfo): Global storage for file system
 information. 	(fs_info::update): Store file system information also in
 fsinfo and 	short circuit GetVolumeInformation by using alredy stored file
 system 	information.

---
 winsup/cygwin/ChangeLog |  7 +++++++
 winsup/cygwin/path.cc   | 21 +++++++++++++++++++--
 winsup/cygwin/path.h    |  1 +
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index ff8dfdccf7..32070c03a4 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,5 +1,12 @@
 2004-04-09  Corinna Vinschen  <corinna@vinschen.de>
 
+	* path.cc (fsinfo): Global storage for file system information.
+	(fs_info::update): Store file system information also in fsinfo and
+	short circuit GetVolumeInformation by using alredy stored file system
+	information.
+
+2004-04-09  Corinna Vinschen  <corinna@vinschen.de>
+
 	* fhandler.h (fhandler_base::status): Declare private.
 	(fhandler_base::open_status): Ditto.
 	(class fhandler_socket): Move status bits into private bitfield struct
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index 847fbd0c66..9e85f22a2e 100644
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -354,6 +354,9 @@ mkrelpath (char *path)
     strcpy (path, ".");
 }
 
+#define MAX_FS_INFO_CNT 25
+fs_info fsinfo[MAX_FS_INFO_CNT];
+
 bool
 fs_info::update (const char *win32_path)
 {
@@ -368,8 +371,20 @@ fs_info::update (const char *win32_path)
       return false;
     }
 
-  if (strcmp (tmp_buf, root_dir_storage) == 0)
-    return 1;
+  __ino64_t tmp_name_hash = hash_path_name (1, tmp_buf);
+  if (tmp_name_hash == name_hash)
+    return true;
+  int idx = 0;
+  while (idx < MAX_FS_INFO_CNT && fsinfo[idx].name_hash)
+    {
+      if (tmp_name_hash == fsinfo[idx].name_hash)
+        {
+	  *this = fsinfo[idx];
+	  return true;
+	}
+      ++idx;
+    }
+  name_hash = tmp_name_hash;
 
   strncpy (root_dir_storage, tmp_buf, CYG_MAX_PATH);
   drive_type_storage = GetDriveType (root_dir_storage);
@@ -395,6 +410,8 @@ fs_info::update (const char *win32_path)
    */
   sym_opt_storage = (!is_remote_drive_storage && strcmp (name_storage, "NTFS") == 0) ? PC_CHECK_EA : 0;
 
+  if (idx < MAX_FS_INFO_CNT && drive_type_storage != DRIVE_REMOVABLE)
+    fsinfo[idx] = *this;
   return true;
 }
 
diff --git a/winsup/cygwin/path.h b/winsup/cygwin/path.h
index 56eb0ca81b..d3d23d66b3 100644
--- a/winsup/cygwin/path.h
+++ b/winsup/cygwin/path.h
@@ -75,6 +75,7 @@ struct fs_info
 {
   char name_storage[CYG_MAX_PATH];
   char root_dir_storage[CYG_MAX_PATH];
+  __ino64_t name_hash;
   DWORD flags_storage;
   DWORD serial_storage;
   DWORD sym_opt_storage; /* additional options to pass to symlink_info resolver */
-- 
2.11.0