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[XFS] Check for xfs_free_extent() failing.
xfs_free_extent() can fail, but log recovery never bothers to check if it successfully free the extent it was supposed to. This could lead to silent corruption during log recovery. Abort log recovery if we fail to free an extent. SGI-PV: 980084 SGI-Modid: xfs-linux-melb:xfs-kern:30801a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Niv Sardi <xaiki@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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@ -3003,15 +3003,15 @@ xlog_recover_process_efi(
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tp = xfs_trans_alloc(mp, 0);
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error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0, 0, 0);
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if (error) {
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xfs_trans_cancel(tp, XFS_TRANS_ABORT);
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return error;
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}
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if (error)
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goto abort_error;
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efdp = xfs_trans_get_efd(tp, efip, efip->efi_format.efi_nextents);
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for (i = 0; i < efip->efi_format.efi_nextents; i++) {
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extp = &(efip->efi_format.efi_extents[i]);
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xfs_free_extent(tp, extp->ext_start, extp->ext_len);
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error = xfs_free_extent(tp, extp->ext_start, extp->ext_len);
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if (error)
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goto abort_error;
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xfs_trans_log_efd_extent(tp, efdp, extp->ext_start,
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extp->ext_len);
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}
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@ -3019,6 +3019,10 @@ xlog_recover_process_efi(
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efip->efi_flags |= XFS_EFI_RECOVERED;
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error = xfs_trans_commit(tp, 0);
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return error;
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abort_error:
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xfs_trans_cancel(tp, XFS_TRANS_ABORT);
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return error;
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}
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/*
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