xfs: fix up asserts in xfs_iflush_fork
Remove asserts in xfs_iflush_fork that would call xfs_iext_get_ext with a potentially invalid extent buffer index. Based on an earlier patch from Lachlan McIlroy. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
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@ -2557,12 +2557,9 @@ xfs_iflush_fork(
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case XFS_DINODE_FMT_EXTENTS:
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ASSERT((ifp->if_flags & XFS_IFEXTENTS) ||
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!(iip->ili_format.ilf_fields & extflag[whichfork]));
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ASSERT((xfs_iext_get_ext(ifp, 0) != NULL) ||
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(ifp->if_bytes == 0));
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ASSERT((xfs_iext_get_ext(ifp, 0) == NULL) ||
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(ifp->if_bytes > 0));
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if ((iip->ili_format.ilf_fields & extflag[whichfork]) &&
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(ifp->if_bytes > 0)) {
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ASSERT(xfs_iext_get_ext(ifp, 0));
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ASSERT(XFS_IFORK_NEXTENTS(ip, whichfork) > 0);
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(void)xfs_iextents_copy(ip, (xfs_bmbt_rec_t *)cp,
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whichfork);
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