We ran into this because we noticed that resize2fs -P $device was
triggering udev events.
I added a very simple test that just checks resize2fs -P on a file
lacking the w bit succeeds.
Signed-off-by: Michael Hudson-Doyle <michael.hudson@xxxxxxxxxx>
---
resize/main.c | 8 ++++++--
tests/scripts/resize_test | 8 ++++++++
2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/resize/main.c b/resize/main.c
index bceaa1677..073c0bc7c 100644
--- a/resize/main.c
+++ b/resize/main.c
@@ -256,6 +256,7 @@ int main (int argc, char ** argv)
int force_min_size = 0;
int print_min_size = 0;
int fd, ret;
+ int open_flags = O_RDWR;
blk64_t new_size = 0;
blk64_t max_size = 0;
blk64_t min_size = 0;
@@ -363,7 +364,10 @@ int main (int argc, char ** argv)
len = 2 * len;
}
- fd = ext2fs_open_file(device_name, O_RDWR, 0);
+ if (print_min_size)
+ open_flags = O_RDONLY;
+
+ fd = ext2fs_open_file(device_name, open_flags, 0);
if (fd < 0) {
com_err("open", errno, _("while opening %s"),
device_name);
@@ -401,7 +405,7 @@ int main (int argc, char ** argv)
#endif
io_ptr = unix_io_manager;
- if (!(mount_flags & EXT2_MF_MOUNTED))
+ if (!(mount_flags & EXT2_MF_MOUNTED) && !print_min_size)
io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE;
io_flags |= EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
diff --git a/tests/scripts/resize_test b/tests/scripts/resize_test
index fc9d1c246..a000c85e5 100755
--- a/tests/scripts/resize_test
+++ b/tests/scripts/resize_test
@@ -60,6 +60,14 @@ rm -f $OUT_TMP
echo $FSCK -fy $TMPFILE >> $LOG 2>&1
$FSCK -fy $TMPFILE >> $LOG 2>&1
+chmod u-w $TMPFILE
+echo $RESIZE2FS -P $TMPFILE >> $LOG 2>&1
+if ! $RESIZE2FS -P $TMPFILE >> $LOG 2>&1
+then
+ return 1
+fi
+chmod u+w $TMPFILE
+
echo $RESIZE2FS $RESIZE2FS_OPTS -d $DBG_FLAGS $TMPFILE $SIZE_2 >> $LOG 2>&1
if ! $RESIZE2FS $RESIZE2FS_OPTS -d $DBG_FLAGS $TMPFILE $SIZE_2 >> $LOG 2>&1
then
--
2.34.1
