diff options
Diffstat (limited to '')
| -rw-r--r-- | mounts.cpp | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/mounts.cpp b/mounts.cpp index f23376b06..fbcbac014 100644 --- a/mounts.cpp +++ b/mounts.cpp @@ -27,6 +27,8 @@ #include <string> #include <vector> +#include <android-base/logging.h> + struct MountedVolume { std::string device; std::string mount_point; @@ -75,15 +77,23 @@ MountedVolume* find_mounted_volume_by_mount_point(const char* mount_point) { } int unmount_mounted_volume(MountedVolume* volume) { - // Intentionally pass the empty string to umount if the caller tries - // to unmount a volume they already unmounted using this - // function. - std::string mount_point = volume->mount_point; - volume->mount_point.clear(); - return umount(mount_point.c_str()); + // Intentionally pass the empty string to umount if the caller tries to unmount a volume they + // already unmounted using this function. + std::string mount_point = volume->mount_point; + volume->mount_point.clear(); + int result = umount(mount_point.c_str()); + if (result == -1) { + PLOG(WARNING) << "Failed to umount " << mount_point; + } + return result; } int remount_read_only(MountedVolume* volume) { - return mount(volume->device.c_str(), volume->mount_point.c_str(), volume->filesystem.c_str(), - MS_NOATIME | MS_NODEV | MS_NODIRATIME | MS_RDONLY | MS_REMOUNT, 0); + int result = mount(volume->device.c_str(), volume->mount_point.c_str(), + volume->filesystem.c_str(), + MS_NOATIME | MS_NODEV | MS_NODIRATIME | MS_RDONLY | MS_REMOUNT, 0); + if (result == -1) { + PLOG(WARNING) << "Failed to remount read-only " << volume->mount_point; + } + return result; } |