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xfs: pass state not whichfork to trace_xfs_extlist

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commit 7710517fc3 upstream.

When xfs_bmap_trace_exlist called trace_xfs_extlist,
it sent in the "whichfork" var instead of the bmap "state"
as expected (even though state was already set up for this
purpose).

As a result, the xfs_bmap_class in tracing code used
"whichfork" not state in xfs_iext_state_to_fork(), and got
the wrong ifork pointer.  It all goes downhill from
there, including an ASSERT when ifp_bytes is empty
by the time it reaches xfs_iext_get_ext():

XFS: Assertion failed: idx < ifp->if_bytes / sizeof(xfs_bmbt_rec_t)

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Eric Sandeen
2017-01-09 16:38:49 +01:00
committed by Greg Kroah-Hartman
parent bdbfd4ee6b
commit a585e1c4ec
1 changed files with 1 additions and 1 deletions
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2
fs/xfs/libxfs/xfs_bmap.c
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@@ -531,7 +531,7 @@ xfs_bmap_trace_exlist(
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(cnt == xfs_iext_count(ifp));
for (idx = 0; idx < cnt; idx++)
trace_xfs_extlist(ip, idx, whichfork, caller_ip);
trace_xfs_extlist(ip, idx, state, caller_ip);
}
/*