diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2018-10-11 17:38:14 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2018-10-26 23:34:39 +0200 |
| commit | 8f97d1e99149a7f1aa19e47a51b09764382a482e (patch) | |
| tree | ca2f5d211b719dd62d06875194be3b1940bcc97f /fs/overlayfs/dir.c | |
| parent | 1f244dc5213960f76e7463bbb5719c331045bbc9 (diff) | |
| download | linux-8f97d1e99149a7f1aa19e47a51b09764382a482e.tar.bz2 | |
vfs: fix FIGETBSZ ioctl on an overlayfs file
Some anon_bdev filesystems (e.g. overlayfs, ceph) don't have s_blocksize
set. Returning zero from FIGETBSZ ioctl results in a Floating point
exception from the e2fsprogs utility filefrag, which divides the size of
the file with the value returned by FIGETBSZ.
Fix the interface by returning -EINVAL for these filesystems.
Fixes: d1d04ef8572b ("ovl: stack file ops")
Cc: <stable@vger.kernel.org> # v4.19
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/dir.c')
0 files changed, 0 insertions, 0 deletions