tree b474090d13fdfe826d6bbae81d2c9425a81504f5
parent 4bb31bccea381ebadf0e1bc4433026613c15ce68
author Darrick J. Wong <darrick.wong@oracle.com> 1483976333 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1484217583 +0100

xfs: complain if we don't get nextents bmap records

commit 356a3225222e5bc4df88aef3419fb6424f18ab69 upstream.

When reading into memory all extents of a btree-format inode fork,
complain if the number of extents we find is not the same as the number
of extents reported in the inode core.  This is needed to stop an IO
action from accessing the garbage areas of the in-core fork.

[dchinner: removed redundant assert]

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>