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xfs: scrub extended attribute leaf space

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As we walk the attribute btree, explicitly check the structure of the
attribute leaves to make sure the pointers make sense and the freemap is
sensible.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong
2017-10-31 12:10:02 -07:00
parent e9e899a2a8
commit 13791d3b83
4 changed files with 238 additions and 24 deletions
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4
fs/xfs/scrub/dabtree.c
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@@ -467,7 +467,8 @@ int
xfs_scrub_da_btree(
struct xfs_scrub_context *sc,
int whichfork,
xfs_scrub_da_btree_rec_fn scrub_fn)
xfs_scrub_da_btree_rec_fn scrub_fn,
void *private)
{
struct xfs_scrub_da_btree ds = {};
struct xfs_mount *mp = sc->mp;
@@ -492,6 +493,7 @@ xfs_scrub_da_btree(
ds.state->args = &ds.dargs;
ds.state->mp = mp;
ds.sc = sc;
ds.private = private;
if (whichfork == XFS_ATTR_FORK) {
ds.dargs.geo = mp->m_attr_geo;
ds.lowest = 0;