xfs: Check the return value of xfs_buf_get() (b522950f) · Commits · 戴 / test

fs/xfs/xfs_attr.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2109,8 +2109,8 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)

		bp = xfs_buf_get(mp->m_ddev_targp, dblkno, blkcnt,
		XBF_LOCK \| XBF_DONT_BLOCK);
		ASSERT(!xfs_buf_geterror(bp));

		if (!bp)
		return ENOMEM;
		tmp = (valuelen < XFS_BUF_SIZE(bp)) ? valuelen :
		XFS_BUF_SIZE(bp);
		xfs_buf_iomove(bp, 0, tmp, src, XBRW_WRITE);

fs/xfs/xfs_fsops.c

+20 −0

Original line number	Diff line number	Diff line
		@@ -194,6 +194,10 @@ xfs_growfs_data_private(
		bp = xfs_buf_get(mp->m_ddev_targp,
		XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
		XFS_FSS_TO_BB(mp, 1), XBF_LOCK \| XBF_MAPPED);
		if (!bp) {
		error = ENOMEM;
		goto error0;
		}
		agf = XFS_BUF_TO_AGF(bp);
		memset(agf, 0, mp->m_sb.sb_sectsize);
		agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
		@@ -227,6 +231,10 @@ xfs_growfs_data_private(
		bp = xfs_buf_get(mp->m_ddev_targp,
		XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
		XFS_FSS_TO_BB(mp, 1), XBF_LOCK \| XBF_MAPPED);
		if (!bp) {
		error = ENOMEM;
		goto error0;
		}
		agi = XFS_BUF_TO_AGI(bp);
		memset(agi, 0, mp->m_sb.sb_sectsize);
		agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC);
		@@ -253,6 +261,10 @@ xfs_growfs_data_private(
		XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)),
		BTOBB(mp->m_sb.sb_blocksize),
		XBF_LOCK \| XBF_MAPPED);
		if (!bp) {
		error = ENOMEM;
		goto error0;
		}
		block = XFS_BUF_TO_BLOCK(bp);
		memset(block, 0, mp->m_sb.sb_blocksize);
		block->bb_magic = cpu_to_be32(XFS_ABTB_MAGIC);
		@@ -276,6 +288,10 @@ xfs_growfs_data_private(
		XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)),
		BTOBB(mp->m_sb.sb_blocksize),
		XBF_LOCK \| XBF_MAPPED);
		if (!bp) {
		error = ENOMEM;
		goto error0;
		}
		block = XFS_BUF_TO_BLOCK(bp);
		memset(block, 0, mp->m_sb.sb_blocksize);
		block->bb_magic = cpu_to_be32(XFS_ABTC_MAGIC);
		@@ -300,6 +316,10 @@ xfs_growfs_data_private(
		XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)),
		BTOBB(mp->m_sb.sb_blocksize),
		XBF_LOCK \| XBF_MAPPED);
		if (!bp) {
		error = ENOMEM;
		goto error0;
		}
		block = XFS_BUF_TO_BLOCK(bp);
		memset(block, 0, mp->m_sb.sb_blocksize);
		block->bb_magic = cpu_to_be32(XFS_IBT_MAGIC);

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