xfs: make last AG grow/shrink perag centric
Because the perag must exist for these operations, look it up as
part of the common shrink operations and pass it instead of the
mount/agno pair.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 0d67ff8..f21581c 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -955,6 +955,7 @@ xfs_ioc_ag_geometry(
struct xfs_mount *mp,
void __user *arg)
{
+ struct xfs_perag *pag;
struct xfs_ag_geometry ageo;
int error;
@@ -965,7 +966,12 @@ xfs_ioc_ag_geometry(
if (memchr_inv(&ageo.ag_reserved, 0, sizeof(ageo.ag_reserved)))
return -EINVAL;
- error = xfs_ag_get_geometry(mp, ageo.ag_number, &ageo);
+ pag = xfs_perag_get(mp, ageo.ag_number);
+ if (!pag)
+ return -EINVAL;
+
+ error = xfs_ag_get_geometry(pag, &ageo);
+ xfs_perag_put(pag);
if (error)
return error;
