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authorDarrick J. Wong <darrick.wong@oracle.com>2019-08-31 02:30:22 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2019-09-04 07:07:25 +0300
commit76f1793359db07205b9aefba66c7acbac988aaac (patch)
tree845e9ddd16ae5bf4f7824bdb2079014a20bd7d54 /fs/xfs/xfs_ioctl.c
parenteb77b23b565e7e1d2cc3a7d9e4cc186fb54e81a8 (diff)
downloadlinux-76f1793359db07205b9aefba66c7acbac988aaac.tar.xz
xfs: define a flags field for the AG geometry ioctl structure
Define a flags field for the AG geometry ioctl structure. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
-rw-r--r--fs/xfs/xfs_ioctl.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 9a6823e29661..c93501f42675 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1038,6 +1038,10 @@ xfs_ioc_ag_geometry(
if (copy_from_user(&ageo, arg, sizeof(ageo)))
return -EFAULT;
+ if (ageo.ag_flags)
+ return -EINVAL;
+ if (memchr_inv(&ageo.ag_reserved, 0, sizeof(ageo.ag_reserved)))
+ return -EINVAL;
error = xfs_ag_get_geometry(mp, ageo.ag_number, &ageo);
if (error)