fstools: allow the mounting with full access time accounting

In order to allow the mounting of the filesystem with full access time
accounting, a new CMake option (eg: CMAKE_OVL_MOUNT_FULL_ACCESS_TIME)
has been added.

Signed-off-by: Pierre Lebleu <pme.lebleu@gmail.com>

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4844c0381840e048582e95ba24b5daad15a53ef9..f86a4d5af4477903f3b1a595c67fb5f5ee785134 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -56,6 +56,10 @@ IF(DEFINED CMAKE_OVL_MOUNT_COMPRESS_ZLIB)
        ADD_DEFINITIONS(-DOVL_MOUNT_COMPRESS_ZLIB)
 ENDIF(DEFINED CMAKE_OVL_MOUNT_COMPRESS_ZLIB)
 
+IF(DEFINED CMAKE_OVL_MOUNT_FULL_ACCESS_TIME)
+       ADD_DEFINITIONS(-DOVL_MOUNT_FULL_ACCESS_TIME)
+ENDIF(DEFINED CMAKE_OVL_MOUNT_FULL_ACCESS_TIME)
+
 ADD_EXECUTABLE(mount_root mount_root.c)
 TARGET_LINK_LIBRARIES(mount_root fstools)
 INSTALL(TARGETS mount_root RUNTIME DESTINATION sbin)

diff --git a/libfstools/overlay.c b/libfstools/overlay.c
index 068afdc44392c433294a2c0fbe6a281f54d87e6d..14214a3104d9c6ae670437c570c46200db259ed4 100644 (file)
--- a/libfstools/overlay.c
+++ b/libfstools/overlay.c
@@ -341,7 +341,12 @@ static int overlay_mount_fs(struct volume *v)
                return -1;
        }
 
-       if (mount(v->blk, "/tmp/overlay", fstype, MS_NOATIME,
+       if (mount(v->blk, "/tmp/overlay", fstype,
+#ifdef OVL_MOUNT_FULL_ACCESS_TIME
+               MS_RELATIME,
+#else
+               MS_NOATIME,
+#endif
 #ifdef OVL_MOUNT_COMPRESS_ZLIB
                "compr=zlib"
 #else