xfs: create agfl block free helper function (4223f659) · Commits · 戴 / test

fs/xfs/libxfs/xfs_alloc.c

+27 −10

Original line number	Diff line number	Diff line
		@@ -2060,6 +2060,30 @@ xfs_alloc_space_available(
		return true;
		}

		int
		xfs_free_agfl_block(
		struct xfs_trans *tp,
		xfs_agnumber_t agno,
		xfs_agblock_t agbno,
		struct xfs_buf *agbp,
		struct xfs_owner_info *oinfo)
		{
		int error;
		struct xfs_buf *bp;

		error = xfs_free_ag_extent(tp, agbp, agno, agbno, 1, oinfo,
		XFS_AG_RESV_AGFL);
		if (error)
		return error;

		bp = xfs_btree_get_bufs(tp->t_mountp, tp, agno, agbno, 0);
		if (!bp)
		return -EFSCORRUPTED;
		xfs_trans_binval(tp, bp);

		return 0;
		}

		/*
		* Check the agfl fields of the agf for inconsistency or corruption. The purpose
		* is to detect an agfl header padding mismatch between current and early v5
		@@ -2247,21 +2271,14 @@ xfs_alloc_fix_freelist(
		else
		xfs_rmap_ag_owner(&targs.oinfo, XFS_RMAP_OWN_AG);
		while (!(flags & XFS_ALLOC_FLAG_NOSHRINK) && pag->pagf_flcount > need) {
		struct xfs_buf *bp;

		error = xfs_alloc_get_freelist(tp, agbp, &bno, 0);
		if (error)
		goto out_agbp_relse;
		error = xfs_free_ag_extent(tp, agbp, args->agno, bno, 1,
		&targs.oinfo, XFS_AG_RESV_AGFL);

		error = xfs_free_agfl_block(tp, args->agno, bno, agbp,
		&targs.oinfo);
		if (error)
		goto out_agbp_relse;
		bp = xfs_btree_get_bufs(mp, tp, args->agno, bno, 0);
		if (!bp) {
		error = -EFSCORRUPTED;
		goto out_agbp_relse;
		}
		xfs_trans_binval(tp, bp);
		}

		targs.tp = tp;

+2 −0

Original line number	Diff line number	Diff line
		@@ -223,6 +223,8 @@ int xfs_read_agf(struct xfs_mount mp, struct xfs_trans tp,
		xfs_agnumber_t agno, int flags, struct xfs_buf **bpp);
		int xfs_alloc_read_agfl(struct xfs_mount mp, struct xfs_trans tp,
		xfs_agnumber_t agno, struct xfs_buf **bpp);
		int xfs_free_agfl_block(struct xfs_trans *, xfs_agnumber_t, xfs_agblock_t,
		struct xfs_buf , struct xfs_owner_info );
		int xfs_alloc_fix_freelist(struct xfs_alloc_arg *args, int flags);
		int xfs_free_extent_fix_freelist(struct xfs_trans *tp, xfs_agnumber_t agno,
		struct xfs_buf **agbp);