Test that when two lower hardlinks are copied up, they end up as two upper hardlinks of the same upper inode. Drop caches before copy up so there is no knowledge of the copied up hardlink in inode/dcache. Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx> --- tests/overlay/018 | 10 ++++++++++ tests/overlay/018.out | 7 +++++++ tests/overlay/group | 1 + 3 files changed, 18 insertions(+) diff --git a/tests/overlay/018 b/tests/overlay/018 index 46097a9..41855dc 100755 --- a/tests/overlay/018 +++ b/tests/overlay/018 @@ -111,5 +111,15 @@ echo "== After mount cycle ==" cat $FILES check_ino_nlink $tmp.after_one $tmp.after_cycle +# Drop caches to get the copied up hardlink out of cache +echo 3 > /proc/sys/vm/drop_caches + +# Modify content of the other hardlink +echo "two" >> $foo + +echo "== After write two ==" +cat $FILES +check_ino_nlink $tmp.after_one $tmp.after_two + status=0 exit diff --git a/tests/overlay/018.out b/tests/overlay/018.out index 5b74ee1..adc7f72 100644 --- a/tests/overlay/018.out +++ b/tests/overlay/018.out @@ -12,3 +12,10 @@ zero one zero one +== After write two == +zero +one +two +zero +one +two diff --git a/tests/overlay/group b/tests/overlay/group index 28df5b6..2baba3a 100644 --- a/tests/overlay/group +++ b/tests/overlay/group @@ -34,3 +34,4 @@ 029 auto quick 030 auto quick perms 031 auto quick whiteout +032 auto quick copyup hardlink -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
