From ce92464c180b60e79022bdf1175b7737a11f59b7 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Thu, 23 Jan 2020 17:01:18 -0800 Subject: [PATCH] xfs: make xfs_trans_get_buf return an error code Convert xfs_trans_get_buf() to return numeric error codes like most everywhere else in xfs. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig Reviewed-by: Dave Chinner --- fs/xfs/libxfs/xfs_btree.c | 23 ++++++++++++++++------- fs/xfs/libxfs/xfs_ialloc.c | 12 ++++++------ fs/xfs/libxfs/xfs_sb.c | 9 +++++---- fs/xfs/scrub/repair.c | 8 ++++++-- fs/xfs/xfs_attr_inactive.c | 17 +++++++++-------- fs/xfs/xfs_dquot.c | 8 ++++---- fs/xfs/xfs_inode.c | 12 ++++++------ fs/xfs/xfs_rtalloc.c | 8 +++----- fs/xfs/xfs_symlink.c | 19 ++++++++----------- fs/xfs/xfs_trans.h | 13 ++++--------- 10 files changed, 67 insertions(+), 62 deletions(-) diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index b22c7e928eb1..2d53e5fdff70 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -688,11 +688,16 @@ xfs_btree_get_bufl( xfs_trans_t *tp, /* transaction pointer */ xfs_fsblock_t fsbno) /* file system block number */ { + struct xfs_buf *bp; xfs_daddr_t d; /* real disk block address */ + int error; ASSERT(fsbno != NULLFSBLOCK); d = XFS_FSB_TO_DADDR(mp, fsbno); - return xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0); + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, &bp); + if (error) + return NULL; + return bp; } /* @@ -706,12 +711,17 @@ xfs_btree_get_bufs( xfs_agnumber_t agno, /* allocation group number */ xfs_agblock_t agbno) /* allocation group block number */ { + struct xfs_buf *bp; xfs_daddr_t d; /* real disk block address */ + int error; ASSERT(agno != NULLAGNUMBER); ASSERT(agbno != NULLAGBLOCK); d = XFS_AGB_TO_DADDR(mp, agno, agbno); - return xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0); + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, &bp); + if (error) + return NULL; + return bp; } /* @@ -1270,11 +1280,10 @@ xfs_btree_get_buf_block( error = xfs_btree_ptr_to_daddr(cur, ptr, &d); if (error) return error; - *bpp = xfs_trans_get_buf(cur->bc_tp, mp->m_ddev_targp, d, - mp->m_bsize, 0); - - if (!*bpp) - return -ENOMEM; + error = xfs_trans_get_buf(cur->bc_tp, mp->m_ddev_targp, d, mp->m_bsize, + 0, bpp); + if (error) + return error; (*bpp)->b_ops = cur->bc_ops->buf_ops; *block = XFS_BUF_TO_BLOCK(*bpp); diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index 5b759af4d165..bf161e930f1d 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -276,6 +276,7 @@ xfs_ialloc_inode_init( int i, j; xfs_daddr_t d; xfs_ino_t ino = 0; + int error; /* * Loop over the new block(s), filling in the inodes. For small block @@ -327,12 +328,11 @@ xfs_ialloc_inode_init( */ d = XFS_AGB_TO_DADDR(mp, agno, agbno + (j * M_IGEO(mp)->blocks_per_cluster)); - fbuf = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, - mp->m_bsize * - M_IGEO(mp)->blocks_per_cluster, - XBF_UNMAPPED); - if (!fbuf) - return -ENOMEM; + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, + mp->m_bsize * M_IGEO(mp)->blocks_per_cluster, + XBF_UNMAPPED, &fbuf); + if (error) + return error; /* Initialize the inode buffers and log them appropriately. */ fbuf->b_ops = &xfs_inode_buf_ops; diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index 6fdd007f81ab..2f60fc3c99a0 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -1185,13 +1185,14 @@ xfs_sb_get_secondary( struct xfs_buf **bpp) { struct xfs_buf *bp; + int error; ASSERT(agno != 0 && agno != NULLAGNUMBER); - bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, XFS_AG_DADDR(mp, agno, XFS_SB_BLOCK(mp)), - XFS_FSS_TO_BB(mp, 1), 0); - if (!bp) - return -ENOMEM; + XFS_FSS_TO_BB(mp, 1), 0, &bp); + if (error) + return error; bp->b_ops = &xfs_sb_buf_ops; xfs_buf_oneshot(bp); *bpp = bp; diff --git a/fs/xfs/scrub/repair.c b/fs/xfs/scrub/repair.c index b70a88bc975e..3df49d487940 100644 --- a/fs/xfs/scrub/repair.c +++ b/fs/xfs/scrub/repair.c @@ -341,13 +341,17 @@ xrep_init_btblock( struct xfs_trans *tp = sc->tp; struct xfs_mount *mp = sc->mp; struct xfs_buf *bp; + int error; trace_xrep_init_btblock(mp, XFS_FSB_TO_AGNO(mp, fsb), XFS_FSB_TO_AGBNO(mp, fsb), btnum); ASSERT(XFS_FSB_TO_AGNO(mp, fsb) == sc->sa.agno); - bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, XFS_FSB_TO_DADDR(mp, fsb), - XFS_FSB_TO_BB(mp, 1), 0); + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, + XFS_FSB_TO_DADDR(mp, fsb), XFS_FSB_TO_BB(mp, 1), 0, + &bp); + if (error) + return error; xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); xfs_btree_init_block(mp, bp, btnum, 0, 0, sc->sa.agno); xfs_trans_buf_set_type(tp, bp, XFS_BLFT_BTREE_BUF); diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c index 8fbb841cd6fe..bbfa6ba84dcd 100644 --- a/fs/xfs/xfs_attr_inactive.c +++ b/fs/xfs/xfs_attr_inactive.c @@ -205,11 +205,12 @@ xfs_attr3_node_inactive( /* * Remove the subsidiary block from the cache and from the log. */ - child_bp = xfs_trans_get_buf(*trans, mp->m_ddev_targp, + error = xfs_trans_get_buf(*trans, mp->m_ddev_targp, child_blkno, - XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0); - if (!child_bp) - return -EIO; + XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0, + &child_bp); + if (error) + return error; error = bp->b_error; if (error) { xfs_trans_brelse(*trans, child_bp); @@ -298,10 +299,10 @@ xfs_attr3_root_inactive( /* * Invalidate the incore copy of the root block. */ - bp = xfs_trans_get_buf(*trans, mp->m_ddev_targp, blkno, - XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0); - if (!bp) - return -EIO; + error = xfs_trans_get_buf(*trans, mp->m_ddev_targp, blkno, + XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0, &bp); + if (error) + return error; error = bp->b_error; if (error) { xfs_trans_brelse(*trans, bp); diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c index 9cfd3209f52b..d223e1ae90a6 100644 --- a/fs/xfs/xfs_dquot.c +++ b/fs/xfs/xfs_dquot.c @@ -320,10 +320,10 @@ xfs_dquot_disk_alloc( dqp->q_blkno = XFS_FSB_TO_DADDR(mp, map.br_startblock); /* now we can just get the buffer (there's nothing to read yet) */ - bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, dqp->q_blkno, - mp->m_quotainfo->qi_dqchunklen, 0); - if (!bp) - return -ENOMEM; + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, dqp->q_blkno, + mp->m_quotainfo->qi_dqchunklen, 0, &bp); + if (error) + return error; bp->b_ops = &xfs_dquot_buf_ops; /* diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 1979a0055763..c5077e6326c7 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2546,6 +2546,7 @@ xfs_ifree_cluster( struct xfs_perag *pag; struct xfs_ino_geometry *igeo = M_IGEO(mp); xfs_ino_t inum; + int error; inum = xic->first_ino; pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, inum)); @@ -2574,12 +2575,11 @@ xfs_ifree_cluster( * complete before we get a lock on it, and hence we may fail * to mark all the active inodes on the buffer stale. */ - bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno, - mp->m_bsize * igeo->blocks_per_cluster, - XBF_UNMAPPED); - - if (!bp) - return -ENOMEM; + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno, + mp->m_bsize * igeo->blocks_per_cluster, + XBF_UNMAPPED, &bp); + if (error) + return error; /* * This buffer may not have been correctly initialised as we diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index d42b5a2047e0..6209e7b6b895 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -826,12 +826,10 @@ xfs_growfs_rt_alloc( * Get a buffer for the block. */ d = XFS_FSB_TO_DADDR(mp, fsbno); - bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, - mp->m_bsize, 0); - if (bp == NULL) { - error = -EIO; + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, + mp->m_bsize, 0, &bp); + if (error) goto out_trans_cancel; - } memset(bp->b_addr, 0, mp->m_sb.sb_blocksize); xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1); /* diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c index b94d7b9b55d0..d762d42ed0ff 100644 --- a/fs/xfs/xfs_symlink.c +++ b/fs/xfs/xfs_symlink.c @@ -280,12 +280,10 @@ xfs_symlink( d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock); byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount); - bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, - BTOBB(byte_cnt), 0); - if (!bp) { - error = -ENOMEM; + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, + BTOBB(byte_cnt), 0, &bp); + if (error) goto out_trans_cancel; - } bp->b_ops = &xfs_symlink_buf_ops; byte_cnt = XFS_SYMLINK_BUF_SPACE(mp, byte_cnt); @@ -423,13 +421,12 @@ xfs_inactive_symlink_rmt( * Invalidate the block(s). No validation is done. */ for (i = 0; i < nmaps; i++) { - bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, - XFS_FSB_TO_DADDR(mp, mval[i].br_startblock), - XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0); - if (!bp) { - error = -ENOMEM; + error = xfs_trans_get_buf(tp, mp->m_ddev_targp, + XFS_FSB_TO_DADDR(mp, mval[i].br_startblock), + XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0, + &bp); + if (error) goto error_trans_cancel; - } xfs_trans_binval(tp, bp); } /* diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index a0be934ec811..752c7fef9de7 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -173,22 +173,17 @@ int xfs_trans_get_buf_map(struct xfs_trans *tp, struct xfs_buftarg *target, struct xfs_buf_map *map, int nmaps, xfs_buf_flags_t flags, struct xfs_buf **bpp); -static inline struct xfs_buf * +static inline int xfs_trans_get_buf( struct xfs_trans *tp, struct xfs_buftarg *target, xfs_daddr_t blkno, int numblks, - uint flags) + uint flags, + struct xfs_buf **bpp) { - struct xfs_buf *bp; - int error; - DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); - error = xfs_trans_get_buf_map(tp, target, &map, 1, flags, &bp); - if (error) - return NULL; - return bp; + return xfs_trans_get_buf_map(tp, target, &map, 1, flags, bpp); } int xfs_trans_read_buf_map(struct xfs_mount *mp,