| commit | 011fa99404bea3f5d897c4983f6bd51170e3b18f | [log] [tgz] |
|---|---|---|
| author | Theodore Ts'o <tytso@mit.edu> | Fri Dec 26 23:58:21 2014 -0500 |
| committer | Theodore Ts'o <tytso@mit.edu> | Fri Dec 26 23:58:21 2014 -0500 |
| tree | 09233f55cd3aa55cf779f684cd1968cc36a08437 | |
| parent | 50db71abc529c48b21f4c3034d3cff27cfb25795 [diff] |
ext4: prevent online resize with backup superblock Prevent BUG or corrupted file systems after the following: mkfs.ext4 /dev/vdc 100M mount -t ext4 -o sb=40961 /dev/vdc /vdc resize2fs /dev/vdc We previously prevented online resizing using the old resize ioctl. Move the code to ext4_resize_begin(), so the check applies for all of the resize ioctl's. Reported-by: Maxim Malkov <malkov@ispras.ru> Signed-off-by: Theodore Ts'o <tytso@mit.edu>