Define a new function _get_max_file_size to return
the max file size supported by the special filesystem.
Signed-off-by: Yufen Yu <yuyufen@xxxxxxxxxx>
---
common/rc | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/common/rc b/common/rc
index e5da6484..10ab497d 100644
--- a/common/rc
+++ b/common/rc
@@ -3785,6 +3785,29 @@ _require_scratch_feature()
esac
}
+# get filesystem max file size
+_get_max_file_size()
+{
+ case $FSTYP in
+ vfat|jffs2|romfs)
+ echo $((2**32-1)) # 0xFFFFFFFF
+ ;;
+ *) # MAX_LFS_FILESIZE
+ case "$(getconf LONG_BIT)" in
+ "32")
+ echo $(( ($(getconf PAGE_SIZE) << ($(getconf LONG_BIT) - 1) ) - 1))
+ ;;
+ "64")
+ echo "9223372036854775807"
+ ;;
+ *)
+ _fail "sizeof(long) == $(getconf LONG_BIT)?"
+ ;;
+ esac
+ ;;
+ esac
+}
+
# The maximum filesystem label length, /not/ including terminating NULL
_label_get_max()
{
--
2.16.2.dirty
