btrfs-progs/image
Qu Wenruo 37cf7de3a1 btrfs-progs: image: Only enlarge result image if it's a regular file
[BUG]
misc-test/021 will fail with the following error message:

  ====== RUN CHECK root_helper btrfs-progs/btrfs-image -r btrfs-progs/tests//test.img /dev/loop2
  ERROR: failed to enlarge result image: Invalid argument
  ERROR: failed to fix chunks and devices mapping, the fs may not be mountable: Invalid argument
  extent buffer leak: start 30638080 len 16384
  extent buffer leak: start 30408704 len 16384
  WARNING: dirty eb leak (aborted trans): start 30408704 len 16384
  ERROR: restore failed: Invalid argument
  failed: root_helper btrfs-progs/btrfs-image -r btrfs-progs/tests//test.img /dev/loop2
  test failed for case 021-image-multi-devices

[CAUSE]
For misc-test/021, we're using loopback device, which doesn't support
ftruncate.  That's why it returns EINVAL.

[FIX]
Only call ftruncate64() if we're operating on a regluar file.

Fixes: a7a44164c84e ("btrfs-progs: image: Use correct device size when restoring")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-01-15 18:42:12 +01:00
..
main.c btrfs-progs: image: Only enlarge result image if it's a regular file 2019-01-15 18:42:12 +01:00
metadump.h btrfs-progs: fix typos in comments 2018-11-26 18:24:48 +01:00
sanitize.c btrfs-progs: image: move sanitization to new file 2017-11-14 15:59:00 +01:00
sanitize.h btrfs-progs: image: move sanitization to new file 2017-11-14 15:59:00 +01:00