Commit bbad87ae authored Dec 29, 2021 by Jaegeuk Kim

Mount /mnt/scracth with -o sync,nodiscard



"-o discard" issues UNMAP commands to loopback resulting in punch_hole
on the pinned file in /data. That will break the pinned block map.

Bug: 210589189
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: Ia927c43fc75164ce5929173f5740737eac4de484

parent 06db803f

fs_mgr/fs_mgr_overlayfs.cpp

+2 −0

Original line number	Diff line number	Diff line
		@@ -880,6 +880,8 @@ bool fs_mgr_overlayfs_mount_scratch(const std::string& device_path, const std::s
		errno = save_errno;
		}
		entry.flags &= ~MS_RDONLY;
		entry.flags \|= MS_SYNCHRONOUS;
		entry.fs_options = "nodiscard";
		fs_mgr_set_blk_ro(device_path, false);
		}
		// check_fs requires apex runtime library